Retroprogramming by spotlessmind1975 ugbasic:user:kw

ugbasic:user:kw:abs

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ABS ✓ SYNTAX = ABS(expression) PURPOSE The ABS command is a mathematical function that returns the absolute value of a number. In essence, it removes the negative sign from a number, always returning a positive or zero value. The parameter

ugbasic:user:kw:add

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ADD ✓ SYNTAX ADD var, expr [, min TO max] [CLAMP] PURPOSE The ADD statement is used to increment the value of a numeric variable by a specified amount. In other words, it is like adding one number to another. The basic syntax take the

ugbasic:user:kw:addc

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ADDC SYNTAX PURPOSE ABBREVIATION A$ ALIAS FOR ADD ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY

ugbasic:user:kw:after...call

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual AFTER...CALL ✓ SYNTAX AFTER value[,timer] TICKS CALL identifier PURPOSE The AFTER...CALL command implement a countdown timer for your program. It is a very useful tool for making a piece of code run after a specific interval, essentially turning your program into a countdown. You must specifying the length of time to wait, measured in

ugbasic:user:kw:after...gosub

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual AFTER...GOSUB ✓ SYNTAX AFTER value[,timer] TICKS GOSUB label PURPOSE Define the call of a subroutine after a specific time, without interfering with the main program. You must specifying the length of time to wait, measured in TICKS. The ugBASIC branches to the subroutine after

ugbasic:user:kw:allow

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ALLOW SYNTAX ALLOW PURPOSE The ALLOW instruction is the opposite of the FORBID function. While FORBID completely blocks multitasking, ALLOW re-enables it, allowing ugBASIC to schedule again the execution of other tasks, passing the execution from one task to another according to its scheduling policy. If a

ugbasic:user:kw:and

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual AND SYNTAX = x AND y PURPOSE Performs a logical conjunction on two expressions, as a bitwise conjunction. For comparisons managed as a boolean result (TRUE or FALSE), result is TRUE if, and only if, both expresions evaluate to

ugbasic:user:kw:animate

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ANIMATE SYNTAX ANIMATE prefix WITH anim [AT x, y] PURPOSE The ANIMATE command allows you to activate a specific animation at the current position, or at one indicated in the command. If an animation is already active, it will be abruptly interrupted and the indicated one will be started

ugbasic:user:kw:animating

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ANIMATING SYNTAX = ANIMATING(prefix) = ANIMATING(prefix,animation) PURPOSE This statement lets you know if there is a specific animation running on an animatable element. EXAMPLE IF NOT ANIMATING(wheel,animRotating) THEN ANIM wheel WITH animBrake ENDIF

ugbasic:user:kw:animation

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ANIMATION SYNTAX [DEFINE] ANIMATION type name WITH atlas [od] [in] [out] USING prefix [nx] [vbl] [bg] type: SIMPLE | LOOP | BOUNCE od: DELAY delay in: EASEIN upframe [DELAY delay] out: EASEOUT ofrom [DELAY delay] nx: NEXT [WITH EASIN] anim vbl: WAIT VBL bg: PRESERVE BACKGROUND

ugbasic:user:kw:app

Anonymous (anonymous@undisclosed.example.com) — 2025-03-05T10:49:04+00:00

ugBASIC User Manual APP SYNTAX [DOJO] APP PURPOSE The APP command allows you to uniquely identify an application with respect to the services exposed by DOJO. EXAMPLE handle = APP( "test" ) AVAILABLE ON * ALIAS FOR DOJO APP ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:array

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ARRAY SYNTAX ARRAY var = ... ARRAY var := ... PURPOSE The ARRAY keyword allows you to copy a block of memory from a static definition to an array at run time. In simple terms, it copies an array of bytes from the right expression to a

ugbasic:user:kw:array_count

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:array_max

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:array_min

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:array_operator

Anonymous (anonymous@undisclosed.example.com) — 2024-10-25T20:30:05+00:00

ugBASIC User Manual array operator SYNTAX ... = var( o1 [, i2 [, ...] ] ) var( o1 [, i2 [, ...] ] ) = expr ... = var$( o1 [, i2 [, ...] ] ) var$( o1 [, i2 [, ...] ] ) = expr$ PURPOSE In ugBASIC, arrays are accessed using the parenthesis operator (

ugbasic:user:kw:array_sum

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:asc

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ASC ✓ SYNTAX = ASC( string ) PURPOSE The ASC command performs a very specific function: it converts the first character of a string into its corresponding ASCII code. ASCII stands for American Standard Code for Information Interchange and it is a standard encoding that associates each alphanumeric character and many symbols with an integer between 0 and 127. This number represents the internal representation of the character within the computer.

ugbasic:user:kw:ascii_code

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ASCII CODE SYNTAX = ASCII CODE PURPOSE The ASCII CODE command capture a keystroke “on the Fly”, and return the equivalent ASCII code instead of internal SCANCODE. This command is a fundamental tool for making programs more interactive. It allows you to read a character typed by the user without having to press the enter key.

ugbasic:user:kw:asciicode

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ASCIICODE SYNTAX = ASCIICODE PURPOSE EXAMPLE IF ASCIICODE = 42 THEN PRINT "ASTERISK has been pressed!" ENDIF AVAILABLE ON SEE ALSO SCANCODE ALIAS FOR ASCII CODE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:asm

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ASM SYNTAX ASM line BEGIN ASM ... END ASM PURPOSE The ASM command is a bridge between ugBASIC and the assembly language. It allows you to directly insert instructions in machine language or assembly language into the source code.

ugbasic:user:kw:at

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T11:44:41+00:00

ugBASIC User Manual AT ✓ SYNTAX = AT$( x , y ) = AT( x , y ) AT var1, var2 PURPOSE The AT function is used to create a string to position the cursor to an exact position on the screen, when it will be printed on the screen. It's like telling a painter where to start painting on a canvas, not moving immediately but storing the command in a string.

ugbasic:user:kw:atlas_load

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ATLAS LOAD SYNTAX PURPOSE ABBREVIATION Atl#Ld ALIAS FOR LOAD ATLAS LOAD IMAGES IMAGES LOAD ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:bank...at

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BANK...AT SYNTAX BANK [id] AT #address [AS type] [WITH filename] PURPOSE Define a bank of memory named id, starting from address and of type type. Optionally, fill the bank of memory with static data coming from a specific

ugbasic:user:kw:bank

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BANK SYNTAX BANK id PURPOSE The BANK command allows you to change the currently selected bank. All operations that are performed on the banks, and that do not explicitly indicate the bank to operate on, work with the implicit bank, which is set by this command. The minimum bank number is zero (

ugbasic:user:kw:bank_address

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BANK ADDRESS SYNTAX = BANK ADDRESS(id) PURPOSE The BANK ADDRESS function allows you to know the memory address where the swap window with the expanded memory appears, for the given bank. In the case of expansion memories with DMA access, this area does not exist and therefore the function returns zero. Exactly the same value returned in case there are no memory expansions.

ugbasic:user:kw:bank_count

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T16:23:51+00:00

ugBASIC User Manual BANK COUNT ✓ SYNTAX = BANK COUNT PURPOSE This function returns the number of (expansion) banks available. If the computer has more memory areas than the normally addressable one, this function returns the number of banks. Each bank is a Sharing space with a

ugbasic:user:kw:bank_read

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BANK READ SYNTAX BANK READ bank FROM address1 TO address2 SIZE size PURPOSE This instruction can be used to read a number of bytes from an out-of-memory bank in main memory. You must therefore indicate one of the available banks, the memory address from which you want to copy (the $0000 implies the beginning of the bank), the size in bytes and finally the destination address, which will be the RAM memory.

ugbasic:user:kw:bank_size

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T16:23:51+00:00

ugBASIC User Manual BANK SIZE SYNTAX = BANK SIZE(#bank) = BANK SIZE(bank) PURPOSE The BANK SIZE returns the size of the shared memory area for the bank, that is the memory area reachable by the CPU and on which it is “mapped” to the main memory.

ugbasic:user:kw:bank_uncompress

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BANK UNCOMPRESS SYNTAX PURPOSE ABBREVIATION BkUNCOMPRESS ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:bank_write

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BANK WRITE SYNTAX BANK WRITE bank FROM address1 TO address2 SIZE size PURPOSE This instruction can be used to write a number of bytes to an out-of-memory bank from main memory. You must therefore indicate one of the available banks, the memory address from which you want to copy, the size in bytes and finally the destination address (the $0000 implies the beginning of the bank), which will be the bank memory.

ugbasic:user:kw:bar

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BAR ✓ SYNTAX BAR [x1], [y1], [x2], [y2], [c] BAR [x1], [y1] TO [x2], [y2] BAR TO [x2], [y2][, c ] PURPOSE The BAR instruction will draw a filled rectangle on the screen, specifying the coordinates of its opposite corners. The

ugbasic:user:kw:begin_copper...end_copper

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:begin_copper...endcopper

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:begin_gameloop

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BEGIN GAMELOOP SYNTAX BEGIN GAMELOOP PURPOSE The command BEGIN GAMELOOP define the starting point of the game loop. A game loop is a fundamental concept in video game programming, especially in simple video games like those for 8-bit computers. Think of the game loop as the heartbeat of a video game: it is a continuous cycle of actions that are constantly repeated, giving life to the gaming experience.

ugbasic:user:kw:begin_storage...end_storage

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BEGIN STORAGE...END STORAGE ✓ SYNTAX BEGIN STORAGE name [AS filename] ... END STORAGE STORAGE name [AS filename] ... END STORAGE PURPOSE The BEGIN STORAGE..END STORAGE allows to begin describing the content of a storage media. The syntax of this command allows to define up to two parameter. The first parameter,

ugbasic:user:kw:begin_storage

Anonymous (anonymous@undisclosed.example.com) — 2024-11-15T12:57:34+00:00

ugBASIC User Manual BEGIN STORAGE ✓ SYNTAX BEGIN STORAGE [name] [AS filename] STORAGE [name] [AS filename] PURPOSE The BEGIN STORAGE allows to begin describing the content of a storage media. The syntax of this command allows to define up to two parameter. The first parameter,

ugbasic:user:kw:begin_type...end_type

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:bell

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BELL SYNTAX BELL BELL note BELL note, duration BELL note, duration ON channels PURPOSE The BELL command makes the computer emit a sound, usually a short beep, through the internal speaker or audio chipset. This sound serves as an acoustic signal to the user, indicating that an action has been completed, reporting an error, or simply to attract attention.

ugbasic:user:kw:big_endian

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T15:01:28+00:00

ugBASIC User Manual BIG ENDIAN SYNTAX = BIG ENDIAN PURPOSE Returns not zero if the CPU has big endian byte order, zero otherwise. EXAMPLE IF BIG ENDIAN THEN : PRINT "BIG ENDIAN" : ENDIF ABBREVIATION BigEnd AVAILABLE ON * * Atari (400/800)

ugbasic:user:kw:bin

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BIN SYNTAX = BIN( value [, digits] [, zero, one ] ) PURPOSE The BIN command allows you to convert a decimal number into a binary representation. In other words, it takes a number that we are used to writing in base 10 (with the digits 0 through 9) and turns it into a sequence of 0s and 1s, which is the base that computers use to represent data internally. It decode from the most significant to the least significant.

ugbasic:user:kw:bindollar

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BIN$ SYNTAX = BIN$( value [, digits] ) PURPOSE ALIAS FOR BIN ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:bit...of

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BIT...OF SYNTAX = BIT position OF value PURPOSE EXAMPLE IF BIT 2 OF x THEN: PRINT "bit 2 is 1!": ENDIF ABBREVIATION BtOF AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502) * Commodore 128 (Zilog Z80)

ugbasic:user:kw:bitmap

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T22:12:14+00:00

ugBASIC User Manual BITMAP ✓ SYNTAX ... = BITMAP PURPOSE This is the bitmask used to select the BITMAP mode. EXAMPLE IF SCREEN IS BITMAP THEN: PRINT "bitmap is native!": ENDIF See also the following example files: * screens_bitmap_01.bas ABBREVIATION Bm AVAILABLE ON

ugbasic:user:kw:bitmap_at

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BITMAP AT SYNTAX BITMAP AT address PURPOSE The BITMAP AT instruction allows you to change the starting address of the bitmap, in the graphics modes of the video chipset. Since not all chipsets can address any address, it is possible that the input value is normalized. This normalized address will then be used by ugBASIC for subsequent graphics operations.

ugbasic:user:kw:bitmap_clear

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BITMAP CLEAR SYNTAX BITMAP CLEAR [ WITH value ] PURPOSE This command is currently and alias for CLS. Previously, when it was not deprecated, it fills the bitmap with a certain pattern (by default is ZERO, used to indicate the blank screen). The filled part is exclusively that linked to the bitmap, so the color information is kept unchanged. Note that bitmap must be enabled at least once with instruction

ugbasic:user:kw:bitmap_disable

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BITMAP DISABLE SYNTAX BITMAP DISABLE PURPOSE The BITMAP DISABLE command disables bitmap graphics on the target machine. EXAMPLE BITMAP DISABLE ABBREVIATION BmDx AVAILABLE ON * Dragon 32 (6809) * Commodore 128 (MOS 8502)

ugbasic:user:kw:bitmap_enable

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BITMAP ENABLE ✓ SYNTAX BITMAP [ENABLE] BITMAP [ENABLE] (colors) BITMAP [ENABLE] (width, height) BITMAP [ENABLE] (width, height, colors) BITMAP [ENABLE] WIDTH width BITMAP [ENABLE] HEIGHT width PURPOSE The BITMAP ENABLE' command is a fundamental tool, since it allows to configure the graphics mode of the screen, that is, to define how data was displayed on the screen, determining aspects such as the number of horizontal and vertical pixels that make up t…

ugbasic:user:kw:bitmapaddress

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:black

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual BLACK ✓ SYNTAX = BLACK PURPOSE This keyword represents the color black. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space, usually (0,0,0)

ugbasic:user:kw:blit

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:35:52+00:00

ugBASIC User Manual BLIT ✓ SYNTAX BLIT identifier AS expression PURPOSE The “BLITTING” is a data operation used in computer graphics in which several bitmaps are combined into one using a boolean (or mathematical) function. The operation involves at least two bitmaps: a “source” (or “foreground”) and a “destination” (or “background”), and other fields, called “masks” or something like that. The result may be written to a final bitmap, though often it replaces the “destination” field.…

ugbasic:user:kw:blit_image

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BLIT IMAGE ✓ SYNTAX BLIT IMAGE i1, i2, ... AT [x], [y] WITH b BLIT IMAGE i1, i2, ... FRAME frame AT [x], [y] WITH b BLIT IMAGE i1, i2, ... STRIP s FRAME f AT [x], [y] WITH b PURPOSE The “BLITTING” is a data operation used in computer graphics in which several bitmaps are combined into one using a boolean (or mathematical) function. The operation involves at least two bitmaps: a “source” (or “foreground”) and a “destination” (or “background”), and other fields, c…

ugbasic:user:kw:block

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BLOCK ✓ SYNTAX BLOCK x1, y1, x2, y2, fq PURPOSE EXAMPLE BLOCK x, y, x+29, y+19, 0 See also the following example files: * tsb_block_rec_01.bas ABBREVIATION Blk AVAILABLE ON ALIAS FOR BAR ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:blue

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual BLUE ✓ SYNTAX = BLUE PURPOSE This keyword represents the color blue. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space, usually (0,0,170)

ugbasic:user:kw:boom

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BOOM SYNTAX BOOM [duration [MS]] [ON channel] PURPOSE This command makes the computer emit an explosion-like sound. It is possible to indicate the duration of sound effect and on which voices the system should emit the sound. If omitted, it will be issued on all.

ugbasic:user:kw:border

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BORDER SYNTAX BORDER shade PURPOSE ABBREVIATION Bo ALIAS FOR COLOR BORDER ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:bottom

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:box

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual BOX ✓ SYNTAX BOX [x1], [y1] TO x2, y2[, c ] BOX TO x2, y2[, c ] PURPOSE This instruction draws a rectangle on the screen, starting from the coordinates (x1, y1) to arrive at the coordinates (x2, y2), using the color c. The start coordinates can be omitted: in this case, ugBASIC will draw starting from the last drawn position. If the color is omitted, the last color selected with the

ugbasic:user:kw:brown

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual BROWN SYNTAX = BROWN PURPOSE This keyword represents the color brown. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space, usually (221, 136, 101)

ugbasic:user:kw:buffer_definition

Anonymous (anonymous@undisclosed.example.com) — 2024-10-25T20:30:05+00:00

ugBASIC User Manual buffer definition ✓ SYNTAX ... = #[xx... ... = #[xx...] PURPOSE ugBASIC is able to define a byte buffer “in line”, ie directly in the code. This can be useful in those occasions where it is necessary to include binary data, not being able to access an external file.

ugbasic:user:kw:call

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CALL ✓ SYNTAX CALL name CALL name parameters "[" [par1 [, par2[, ...]]] "]" PURPOSE The CALL command is used to call a previously defined procedure (or subroutine) within the same program. A procedure is a separate block of code designed to perform a specific task. By using

ugbasic:user:kw:can_screen

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CAN SCREEN ✓ SYNTAX = CAN SCREEN mode PURPOSE This instruction allows you to check if a certain screen mode is available or not. If that mode is available, the instruction will return the value TRUE. Otherwise, the statement will return

ugbasic:user:kw:case

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CASE SYNTAX CASE value PURPOSE The CASE command is part of SELECT...ENDSELECT construct. Each CASE represents a possible value of the expression. After each case, you can insert the statements that will be executed if the value of the expression matches that case. The code will be executed up to the

ugbasic:user:kw:case_else

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CASE ELSE SYNTAX CASE ELSE PURPOSE The CASE ELSE command is part of SELECT...ENDSELECT construct. It is optional and is executed if none of the previous cases are true. The code will be executed up to the ENDSELECT instruction.

ugbasic:user:kw:casting_operator

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T15:28:47+00:00

ugBASIC User Manual casting operator ✓ SYNTAX ... = ( type ) #value ... = ( type ) (expression) PURPOSE ugBASIC is a loosely typed language. However, there are occasions when the use of certain types is not permitted without the explicit consent of the programmer. For this purpose, a

ugbasic:user:kw:cdown

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T18:47:01+00:00

ugBASIC User Manual CDOWN ✓ SYNTAX CDOWN PURPOSE By using the CDOWN command you can force the text cursor down a single line. EXAMPLE CDOWN See also the following example files: * texts_position_04.bas ABBREVIATION Cd AVAILABLE ON * * Atari (400/800)

ugbasic:user:kw:center

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CENTER ✓ SYNTAX CENTER text [;] PURPOSE The CENTER command aligns a text string in the center of a line. In other words, it allows you to position a word or phrase so that it occupies the available space in a symmetrical manner. The

ugbasic:user:kw:centre

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CENTRE ✓ SYNTAX CENTRE text [;] PURPOSE EXAMPLE CENTRE "HELLO!" CENTRE "HELLO!"; See also the following example files: * texts_position_07.bas * contrib_joystick.bas * contrib_What_a_wonderful_world.bas * screens_resolution_02.bas AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502)

ugbasic:user:kw:cgoto

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CGOTO ✓ SYNTAX CGOTO expression PURPOSE Calculate the number of the line to which the program execution must pass. Allows you to jump to a variable program line number, determined by the result of a calculation. CGOTO is a command that replaces long jump tables behind the BASIC command

ugbasic:user:kw:chain

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:char_at

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T19:00:55+00:00

ugBASIC User Manual CHAR AT SYNTAX PURPOSE ABBREVIATION CHARAt ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY

ugbasic:user:kw:charset_at

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CHARSET AT SYNTAX PURPOSE ABBREVIATION CHARSETAt ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY

ugbasic:user:kw:chr

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T19:37:47+00:00

ugBASIC User Manual CHR ✓ SYNTAX = CHR$(value) PURPOSE The CHR$ function converts a numeric code (usually an integer) into a corresponding character. In other words, it takes a number and returns the character associated with that number in the

ugbasic:user:kw:chrdollar

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CHR$ ✓ SYNTAX = CHR$(value) PURPOSE The CHR$ function converts a numeric code (usually an integer) into a corresponding character. In other words, it takes a number and returns the character associated with that number in the

ugbasic:user:kw:circle

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CIRCLE ✓ SYNTAX CIRCLE [x], [y], r[, c] CIRCLE x, y, rx, ry[, c] PURPOSE The CIRCLE command in BASIC draws a circle on the screen. In other words, it defines a complete circle based on the coordinates and radius that you specify.

ugbasic:user:kw:circle_fill

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:clear

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CLEAR SYNTAX CLEAR size PURPOSE The CLEAR command serves two purposes: the primary semantics of the CLEAR command is to re-initialize (integers) variables to their starting values. Which are usually zero but, of course, can be different from zero. At the moment, their starting value is equal to the assignment during the definition. Other data types (like FLOAT or BIT) are not re-initialized. This is especially useful at the beginning of a program to ensure that there…

ugbasic:user:kw:cleft

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T18:47:01+00:00

ugBASIC User Manual CLEFT ✓ SYNTAX CLEFT PURPOSE By using the CLEFT command you can force the text cursor left by a single character. EXAMPLE CLEFT See also the following example files: * texts_position_04.bas ABBREVIATION Cle AVAILABLE ON * * Atari (400/800)

ugbasic:user:kw:cline

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CLINE ✓ SYNTAX CLINE [chars] PURPOSE The CLINE command is used to clear the line currently occupied by the text cursor. If CLINE is followed by a number, then that number of characters get cleared, starting from the current cursor position and leaving the cursor exactly where it is.

ugbasic:user:kw:clip

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CLIP ✓ SYNTAX CLIP x1,y1 TO x2, x2 PURPOSE The CLIP instruction allows you to delimit the area in which the graphics are actually drawn. In general, the area corresponds to the entire surface of the screen (0,0)-(SCREEN WIDTH-1,SCREEN HEIGHT-1)

ugbasic:user:kw:clr

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CLR SYNTAX CLR size PURPOSE EXAMPLE CLR 2048 AVAILABLE ON ALIAS FOR CLEAR ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:cls

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CLS ✓ SYNTAX CLS CLS color CLS x, y, w, h PURPOSE The CLS command is used to clear the screen and return the cursor to the upper left corner. In other words, CLS clears the screen, eliminating everything that was previously printed.

ugbasic:user:kw:cmob

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CMOB SYNTAX CMOB c1, c2 PURPOSE The CMOB instruction attribute the two colors that are the same for all multicolor sprites in VIC-II registers. Color for individual sprites are available with the MOB SET command or, even,

ugbasic:user:kw:cmove

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T20:20:14+00:00

ugBASIC User Manual CMOVE ✓ SYNTAX CMOVE [dx], [dy] PURPOSE CMOVE allows to move the text cursor a pre-set distance away from its current position. The command is followed by a pair of variables that represent the width and height of the required offset, and these values are added to the current cursor coordinates. Like

ugbasic:user:kw:collision

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual COLLISION SYNTAX = COLLISION(sprite) PURPOSE Verify if a sprite has had a collision with another sprite. If the sprite has collided, the function will return TRUE. Otherwise, it will return FALSE. EXAMPLE x = COLLISION(1)

ugbasic:user:kw:color

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual COLOR SYNTAX COLOR index, shade COLOR border, background, foreground COLOR [border,][background] (if TSB is enabled) COLOR border COLOR ,foreground PURPOSE The COLOR command allows you to redefine the colors used by the graphics chipset, where this is possible.

ugbasic:user:kw:color_back

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual COLOR BACK ✓ SYNTAX COLOR BACK color PURPOSE The COLOR BACK command used on target that support both color graphics, backgorund colors and specialized clearing screen routines. Its primary function is to set the background color of the screen or a specific area of the screen, and then clearing the screen using that color.

ugbasic:user:kw:color_background

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual COLOR BACKGROUND SYNTAX COLOR BACKGROUND value COLOR BACKGROUND index TO value PURPOSE The COLOR BACKGROUND command allows you to redefine the color used by the graphics chipset for the background, where this is possible.

ugbasic:user:kw:color_border

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual COLOR BORDER ✓ SYNTAX COLOR BORDER value PURPOSE The COLOR BORDER command allows you to redefine the color used by the graphics chipset for the border, where this is possible. “Redefinition” means assigning one of the possible colors to specific registers called

ugbasic:user:kw:color_sprite

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual COLOR SPRITE SYNTAX COLOR SPRITE index TO color PURPOSE The COLOR SPRITE command allows you to redefine the (common) colors used by the graphics chipset for the sprites, where this is possible and/or they are available. “Redefinition

ugbasic:user:kw:colormap_at

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual COLORMAP AT SYNTAX COLORMAP AT #address PURPOSE Set the starting address, in memory, for the colormap. The input parameter is decoded and declined according to the hardware limits. So it is not said that exactly the given address is set.

ugbasic:user:kw:colormap_clear

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual COLORMAP CLEAR SYNTAX COLORMAP CLEAR WITH #fore ON #back COLORMAP CLEAR WITH fore ON back COLORMAP CLEAR PURPOSE Erase the entire color map, using a foreground and a background color. EXAMPLE COLORMAP CLEAR WITH #$0 ON #$1 COLORMAP CLEAR WITH YELLOW ON RED COLORMAP CLEAR

ugbasic:user:kw:colour

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual COLOUR SYNTAX COLOUR index, shade PURPOSE EXAMPLE COLOUR 0, $fff AVAILABLE ON * Dragon 32 (6809) * Commodore 128 (Zilog Z80) * Commodore 128 (MOS 8502) * Commodore 64 * Commodore VIC-20 * Atari (400/800) * Atari XL/XE

ugbasic:user:kw:combine_nibble

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual COMBINE NIBBLE SYNTAX = COMBINE NIBBLE( value1, value2 ) PURPOSE The command COMBINE NIBBLE allows you to combine two variables that contains a 4 bit value (nibble) into a single 8 bit value. The first value is the high nibble.

ugbasic:user:kw:configure

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CONFIGURE SYNTAX CONFIGURE STATIC hw SET p1 = v1 [, p2 = v2 [, ...]] CONFIGURE DYNAMIC hw SET p1 = v1 [, p2 = v2 [, ...]] PURPOSE The CONFIGURE command allow to customize hardware configuration, and gives the possibility of generating hardware selection menus via software. The configuration allows two types of manipulation: a

ugbasic:user:kw:console

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CONSOLE SYNTAX CONSOLE x1, y1 TO x2, y2 PURPOSE The CONSOLE command allows you to define an area of the screen where the text output will take place. This area can be defined in both text and graphical mode. Normally, it is set to the entire screen surface, but can be limited with this command. This command works only with texts. The parameters describe the four vertices.

ugbasic:user:kw:console_restore

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CONSOLE RESTORE SYNTAX CONSOLE RESTORE number PURPOSE The command CONSOLE RESTORE allows you to restore the constraints of the given console, previously saved with the command CONSOLE SAVE. EXAMPLE CONSOLE RESTORE 2 ABBREVIATION

ugbasic:user:kw:console_save

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CONSOLE SAVE SYNTAX CONSOLE SAVE number PURPOSE The command CONSOLE SAVE allows you to save the constraints of the given console. EXAMPLE CONSOLE SAVE 2 ABBREVIATION CnsSv AVAILABLE ON * * Atari (400/800) * Atari XL/XE

ugbasic:user:kw:console_use

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CONSOLE USE SYNTAX CONSOLE USE number PURPOSE EXAMPLE CONSOLE USE 2 ABBREVIATION CnsUx AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502) * Commodore 128 (Zilog Z80) * Commodore 64 *

ugbasic:user:kw:const

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CONST ✓ SYNTAX [POSITIVE] CONST identifier = value CONST identifier IN (min,max) = value CONST identifier IN "[" min,max) = value CONST identifier IN (min,max "]" = value CONST identifier IN "[" min,max "]"" = value

ugbasic:user:kw:const_global

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CONST GLOBAL ✓ SYNTAX [POSITIVE] CONST GLOBAL identifier = value CONST GLOBAL identifier IN (min,max) = value CONST GLOBAL identifier IN "[" min,max) = value CONST GLOBAL identifier IN (min,max "]" = value CONST GLOBAL identifier IN "[" min,max "]"" = value

ugbasic:user:kw:const_shared

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CONST SHARED ✓ SYNTAX [POSITIVE] CONST SHARED identifier = value CONST SHARED identifier IN (min,max) = value CONST SHARED identifier IN "[" min,max) = value CONST SHARED identifier IN (min,max "]" = value CONST SHARED identifier IN "[" min,max "]"" = value

ugbasic:user:kw:copper...end_copper

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:copper_color

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:copper_color_background

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:copper_color_border

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:copper_move

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:copper_nop

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:copper_poke

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:copper_poked

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:copper_pokew

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:copper_store

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:copper_use

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:copper_wait_line

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:cos

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual COS ✓ SYNTAX = COS(angle) PURPOSE This function will calculate the cosine value of an angle. The cosine of an acute angle are defined in the context of a right triangle: for the specified angle, its sine is the ratio of the length of the side that is opposite that angle to the length of the longest side of the triangle (the hypotenuse), and the cosine is the ratio of the length of the adjacent leg to that of the hypotenuse.

ugbasic:user:kw:count

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:create_path

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CREATE PATH SYNTAX = CREATE PATH( x0, y0 TO x1, y1 ) = CREATE PATH( x0, y0, x1, y1 ) PURPOSE This command allows you to generate a PATH element that calculates the shortest (linear) path between two given points. The points can be purely geometric or referable to the user screen. The path can then be

ugbasic:user:kw:create_port

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CREATE PORT SYNTAX [DOJO] CREATE PORT [()] PURPOSE The CREATE PORT statement creates a communication port on the DOJO server, which allows you to send and receive messages. Each port has 256 independent communication channels, on which you can send and receive messages. This statement returns a unique port identifier, which can be communicated to the user via the

ugbasic:user:kw:create_vector

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:cright

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T18:47:01+00:00

ugBASIC User Manual CRIGHT ✓ SYNTAX CRIGHT PURPOSE By using the CRIGHT command you can force the text cursor right by a single character. EXAMPLE CRIGHT See also the following example files: * texts_position_04.bas ABBREVIATION Crg AVAILABLE ON * * Atari (400/800)

ugbasic:user:kw:cset

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CSET SYNTAX CSET value PURPOSE The CSET command switches with value between the two character sets of the VIC-II: uppercase graphics characters (0) and uppercase/lowercase (CSET 1). You can also use this to switch to graphics mode without clearing the graphics memory (see

ugbasic:user:kw:csprite

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual CSPRITE SYNTAX = CSPRITE ( name flags ) = CSPRITE ( name, previous flags ) PURPOSE This statement allows you to define a composite sprite. Composite sprites are those sprites that are rendered by means of an overlay of hardware sprites. The definition corresponds to the transfer of graphic information from the graphic resource to the memory space of the machine's hardware. In practice, it is the moment in which the sprite is defined graphically, to be displayed.

ugbasic:user:kw:cup

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T18:47:01+00:00

ugBASIC User Manual CUP ✓ SYNTAX CUP PURPOSE By using the CUP command you can force the text cursor up a single line. EXAMPLE CUP See also the following example files: * texts_position_04.bas ABBREVIATION Cu AVAILABLE ON * * Atari (400/800) * Atari XL/XE

ugbasic:user:kw:cyan

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual CYAN SYNTAX = CYAN PURPOSE This keyword represents the color cyan. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space, usually (170,255,230)

ugbasic:user:kw:d

Anonymous (anonymous@undisclosed.example.com) — 2024-10-25T20:26:13+00:00

ugBASIC User Manual D SYNTAX PURPOSE ALIAS FOR POKEW ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY index

ugbasic:user:kw:dark_blue

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual DARK BLUE SYNTAX = DARK BLUE PURPOSE This keyword represents the color dark blue. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:dark_grey

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual DARK GREY SYNTAX = DARK GREY PURPOSE This keyword represents the color dark grey. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:data

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DATA ✓ SYNTAX DATA data1 [, data2 [, data3 ... ] ] DATA [AS data type] data1 [, data2 [, data3 ... ] ] DATA LOAD "filename" AS TEXT PURPOSE The DATA command is used to create a list of data that will be used in other parts of the program. It is like a container where values are stored that will then be

ugbasic:user:kw:debug

Anonymous (anonymous@undisclosed.example.com) — 2021-06-01T16:01:29+00:00

ugBASIC User Manual DEBUG SYNTAX DEBUG [expression] PURPOSE Outputs a string with the value contained in the indicated expression. For speed of implementation it uses the function of the KERNAL, so it cannot work if the ROM is disabled. EXAMPLE

ugbasic:user:kw:dec

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DEC SYNTAX DEC variable PURPOSE The DEC command is used to decrement (i.e. decrease) the value of a numeric variable by one. It is a quick and concise way to subtract 1 from the value contained in a variable. In place of variable

ugbasic:user:kw:declare_function

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DECLARE FUNCTION ✓ SYNTAX DECLARE [SYSTEM] FUNCTION name AT address [ ( par1 [, par2 [, ... ] ] ) ] RETURN ret [ ON targets ] par : name AS type ON register par : name AS type ON STACK(width) ret : register AS type | STACK(width) AS type width: BYTE | WORD | DWORD targets : name of targets, separated by comma (,)

ugbasic:user:kw:declare_proc

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DECLARE PROC ✓ SYNTAX DECLARE [SYSTEM] PROC name AT address [ ( par [, par [, ... ] ] ) ] [ ON targets ] par : name AS type ON register par : name AS type ON STACK(width) width: BYTE | WORD | DWORD targets : name of targets, separated by comma (,)

ugbasic:user:kw:declare_procedure

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DECLARE PROCEDURE ✓ SYNTAX DECLARE [SYSTEM] PROCEDURE name AT address [ ( par [, par [, ... ] ] ) ] [ ON targets ] par : name AS type ON register par : name AS type ON STACK(width) width: BYTE | WORD | DWORD targets : name of targets, separated by comma (,)

ugbasic:user:kw:defdgr

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DEFDGR ✓ SYNTAX DEFDGR[$](char) = b0, b1, ... , b7 PURPOSE This command allows you to customize a single character from those used in graphical mode. The character is defined by means of an 8 pixel by 8 pixel monochrome matrix. The

ugbasic:user:kw:define_animation

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:define_keyboard_delay

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T09:52:26+00:00

ugBASIC User Manual DEFINE KEYBOARD DELAY SYNTAX DEFINE KEYBOARD DELAY value PURPOSE This command allows you to define the delay to wait before the characters will be repeated by the input system, with the INPUT or INKEY command. The delay depends on the target, with a minimum value of 1 (no delay) to a maximum value of 255 (maximum delay).

ugbasic:user:kw:define_keyboard_rate

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T09:52:26+00:00

ugBASIC User Manual DEFINE KEYBOARD RATE SYNTAX DEFINE KEYBOARD RATE value PURPOSE This command allows you to define the speed with which the characters will be received by the input system on repetition, with the INPUT or INKEY command. The speed depends on the target, with a minimum value of 0 (maximum speed) to a maximum value of 254 (minimum speed).

ugbasic:user:kw:define_movement

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:define_string_count

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T09:52:26+00:00

ugBASIC User Manual DEFINE STRING COUNT SYNTAX DEFINE STRING COUNT strings PURPOSE With the DEFINE STRING COUNT instruction it is possible to define the number of concurrent dynamic strings allowed. EXAMPLE DEFINE STRING COUNT 64 ABBREVIATION

ugbasic:user:kw:define_string_space

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T09:52:26+00:00

ugBASIC User Manual DEFINE STRING SPACE SYNTAX DEFINE STRING SPACE bytes PURPOSE With the DEFINE STRING SPACE instruction it is possible to define the space dedicated to dynamic strings. EXAMPLE DEFINE STRING SPACE 512 ABBREVIATION DeS1Sp AVAILABLE ON

ugbasic:user:kw:defining_labels

Anonymous (anonymous@undisclosed.example.com) — 2024-10-25T20:36:45+00:00

ugBASIC User Manual defining labels ✓ SYNTAX number instruction label: instruction [label:] instruction PURPOSE In ugBASIC it is possible to indicate the position within a program with the use of so-called “labels”. The labels can be represented in the BASIC standard, i.e. with numeric labels, or with alphanumeric labels, and are used to jump within specific positions of the program.

ugbasic:user:kw:degree

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DEGREE SYNTAX DEGREE PURPOSE This command allows you to select the angle mode with trigonometric functions, setting it to 360 degrees. EXAMPLE x1 = COS(3.1415) DEGREE x2 = COS(180) PRINT x1;" ";x2 ABBREVIATION Deg

ugbasic:user:kw:destroy_port

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual DESTROY PORT SYNTAX DESTROY PORT portId PURPOSE The DESTROY PORT instruction destroy a message port that is not more needed. The portId parameter is the same one that returned the call to CREATE PORT function, and identifies the working port at that moment.

ugbasic:user:kw:dim

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T10:20:39+00:00

ugBASIC User Manual DIM ✓ SYNTAX DIM variable [AS datatype] [, variable [AS datatype] [ , variable [AS datatype] ] ] DIM variable [AS datatype] = constant DIM id [AS type] ( d1 [, d2 [ , ... ] ] ) DIM id [AS type] ( d1 [, d2 [ , ... ] ] ) = #[hex] DIM id [AS type] ( d1 [, d2 [ , ... ] ] ) = #{v1, v2, ... } DIM id [AS type] WITH v ( d1 [, d2 [ , ... ] ] )

ugbasic:user:kw:disable_interrupt

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DISABLE INTERRUPT SYNTAX DISABLE INTERRUPT PURPOSE An interrupt is a signal that temporarily stops the normal execution of a program, allowing the processor to handle external events or internal exceptions. These events can be a key being pressed on the keyboard, data arriving from a serial port or a timer reaching zero.

ugbasic:user:kw:distance

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DISTANCE ✓ SYNTAX = DISTANCE( [x1], [y1] TO [x2], [y2] ) PURPOSE The DISTANCE function calculates the geometric distance between two points. The distance is calculated with the application of the Pythagorean theorem, the result of which is however returned with the nnly integer part. If any component is omitted, the last screen position is used, instead.

ugbasic:user:kw:div

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DIV ✓ SYNTAX DIV var, divisor[, remainder] PURPOSE The DIV statement allows you to make a division using the dividend as a variable where the result will be stored. Optionally, and only with integer types, it is possible to indicate a variable where to store the remainder of the division operation.

ugbasic:user:kw:dload

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DLOAD SYNTAX DLOAD filename [FROM offset] [TO address] [SIZE size] PURPOSE The DLOAD command load data from a mass storage (normally, a floppy disk) into the computer's memory. This data can be programs, numeric data, text, or any other information that has previously been saved to disk.

ugbasic:user:kw:dload_error

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DLOAD ERROR SYNTAX = DLOAD ERROR PURPOSE The DLOAD ERROR function lets you know whether the last DLOAD instruction returned an error or not. ABBREVIATION DlEr SEE ALSO DLOAD ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:do...loop

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DO...LOOP ✓ SYNTAX DO ... instructions ... LOOP [WHILE expr | UNTIL expr] PURPOSE The DO...LOOP command is used for repeatedly executing a block of statements. It creates a loop, which is a sequence of statements that is executed repeatedly, forever (unless exits using the

ugbasic:user:kw:do_..._loop

Anonymous (anonymous@undisclosed.example.com) — 2021-04-29T11:41:26+00:00

ugBASIC User Manual DO ... LOOP SYNTAX * DO ... LOOP PURPOSE Implement an unconditional loop. The DO instruction defines the starting point of the loop, while the LOOP instruction defines the end point. EXAMPLE DO : x = x + 1 : LOOP AVAILABLE ON

ugbasic:user:kw:do_null

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DO NULL ✓ SYNTAX DO NULL PURPOSE Wait for a keystroke. If a program comes to a DO NULL instruction, it waits until the user presses a key. Differently from TSB, further commands can follow on the same BASIC line in the progra, and it can be used in an

ugbasic:user:kw:dojo_app

Anonymous (anonymous@undisclosed.example.com) — 2025-03-05T10:49:04+00:00

ugbasic:user:kw:dojo_create_port

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DOJO CREATE PORT SYNTAX PURPOSE ABBREVIATION DjCrtP^ ALIAS FOR CREATE PORT ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:dojo_destroy_port

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual DOJO DESTROY PORT SYNTAX DESTROY PORT portId PURPOSE EXAMPLE sessionId = DOJO LOGIN( "user", "password" ) port = DOJO CREATE PORT( sessionId, "testApp" ) DOJO DESTROY PORT port ABBREVIATION DjDesPrt AVAILABLE ON * Commodore 64

ugbasic:user:kw:dojo_error

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:dojo_find_port

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual DOJO FIND PORT SYNTAX port = DOJO FIND PORT( sessionId, username, application ) PURPOSE EXAMPLE sessionId = DOJO LOGIN( "user", "password" ) port = DOJO FIND( sessionId, "user2", "testApp" ) ABBREVIATION DjFndPrt AVAILABLE ON

ugbasic:user:kw:dojo_get_message

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DOJO GET MESSAGE SYNTAX PURPOSE ABBREVIATION DjGeMa ALIAS FOR GET MESSAGE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:dojo_login

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual DOJO LOGIN SYNTAX = DOJO CREATE PORT( sessionId, application ) PURPOSE EXAMPLE sessionId = DOJO LOGIN( "user", "password" ) ABBREVIATION DjLgn AVAILABLE ON * Commodore 64 * Commodore 64+REU * TRS-80 Color Computer 3

ugbasic:user:kw:dojo_open_port

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:dojo_peek_message

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DOJO PEEK MESSAGE SYNTAX PURPOSE ABBREVIATION DjPkMa ALIAS FOR PEEK MESSAGE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:dojo_ping

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DOJO PING SYNTAX PURPOSE ABBREVIATION DjPin ALIAS FOR PING ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:dojo_put_message

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DOJO PUT MESSAGE SYNTAX PURPOSE ABBREVIATION DjPuMa ALIAS FOR PUT MESSAGE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:dojo_ready

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual DOJO READY SYNTAX = DOJO READY() PURPOSE EXAMPLE IF DOJO READY( ) THEN PRINT "DOJO data is available" ENDIF ABBREVIATION DjR#y AVAILABLE ON * Commodore 64 * Commodore 64+REU * TRS-80 Color Computer 3 * TRS-80 Color Computer

ugbasic:user:kw:dojo_receive

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual DOJO RECEIVE SYNTAX = DOJO RECEIVE() PURPOSE EXAMPLE IF DOJO READY( ) THEN PRINT DOJO RECEIVE() ENDIF ABBREVIATION DjRcv AVAILABLE ON * Commodore 64 * Commodore 64+REU * TRS-80 Color Computer 3 * TRS-80 Color Computer

ugbasic:user:kw:dojo_send

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual DOJO SEND SYNTAX DOJO SEND data PURPOSE EXAMPLE IF DOJO READY( ) THEN PRINT DOJO RECEIVE() ENDIF ABBREVIATION DjSen AVAILABLE ON * Commodore 64 * Commodore 64+REU * TRS-80 Color Computer 3 * TRS-80 Color Computer

ugbasic:user:kw:dojo_success

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual DOJO SUCCESS SYNTAX = DOJO SUCCESS( ) PURPOSE EXAMPLE success = DOJO SUCCESS( ) ABBREVIATION DjSu AVAILABLE ON * Commodore 64 * Commodore 64+REU * TRS-80 Color Computer 3 * TRS-80 Color Computer ALIAS FOR SUCCESS ANY PROBLEM?

ugbasic:user:kw:dollardollar

Anonymous (anonymous@undisclosed.example.com) — 2024-10-22T22:50:38+00:00

ugBASIC User Manual $$ SYNTAX = $$(expression) PURPOSE EXAMPLE x = $$( 42 ) PRINT $$( y ) AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502) * Commodore 128 (Zilog Z80) * Commodore 64 * Commodore 64+REU

ugbasic:user:kw:double_buffer

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DOUBLE BUFFER SYNTAX DOUBLE BUFFER [ON|OFF] PURPOSE The DOUBLE BUFFER is a command that enable / disable the graphics programming technique used to avoid screen flickering, which is especially noticeable in animations and interactive graphics applications. It is especially useful in 8-bit computers, where graphics resources are limited.

ugbasic:user:kw:downb

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:downw

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:draw

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T12:57:57+00:00

ugBASIC User Manual DRAW ✓ SYNTAX DRAW [x1], [y1] TO x2, y2[, c] DRAW TO x2, y2[, c] DRAW (x1,y1) - (x2,y2)[,mode][,B|,BF] PURPOSE This instruction draws a line on the screen, starting from the coordinates (x1, y1) to arrive at the coordinates

ugbasic:user:kw:dsave

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DSAVE SYNTAX DSAVE filename [TO offset] [FROM address] [SIZE size] PURPOSE Dynamically (at run-time) save a file to a mass storage. The DSAVE command allows you to (dynamically) save a file to a mass device. The syntax allows you to save a specific file (

ugbasic:user:kw:dsave_error

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DSAVE ERROR SYNTAX = DSAVE ERROR PURPOSE The DSAVE ERROR function lets you know whether the last DSAVE instruction returned an error or not. ABBREVIATION DsaEr SEE ALSO DSAVE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:dtile

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DTILE SYNTAX DTILE v ROW y, x1 TO x2[, c] DTILE v COLUMN x, y1 TO y2[, c] PURPOSE This command allows you to draw a row or column of “tiles”, or predefined characters. ABBREVIATION Dt ALIAS FOR DTILES ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:dtiles

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DTILES SYNTAX DTILES v ROW y, x1 TO x2[, c] DTILES v COLUMN x, y1 TO y2[, c] PURPOSE ABBREVIATION Dts ALIAS FOR DTILE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:dup

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual DUP SYNTAX = DUP( string, times ) PURPOSE The DUP command allows you to duplicate portions of text within a program. This feature is especially useful when you need to repeat a sequence of characters multiple times, without having to retype it manually.

ugbasic:user:kw:ellipse

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ELLIPSE ✓ SYNTAX ELLIPSE [x],[y],[rx],[ry][, c] PURPOSE This command allows you to draw an ellipse with starting coordinates in (x,y) and radius rx for the horizontal component and ry for the vertical component. The color is indicated by the parameter

ugbasic:user:kw:ellipse_fill

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:empty_tile

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EMPTY TILE SYNTAX = EMPTY TILE EMPTY TILE = ... PURPOSE This is a special parameter of ugBASIC, which allows you to change what is considered the “space” character on the screen. It is used, in text modes, to clear the screen.

ugbasic:user:kw:emptytile

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EMPTYTILE SYNTAX = EMPTYTILE EMPTYTILE = ... PURPOSE EXAMPLE EMPTYTILE = 65 CLS ABBREVIATION Emt AVAILABLE ON ALIAS FOR EMPTY TILE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:enable_interrupt

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ENABLE INTERRUPT SYNTAX ENABLE INTERRUPT PURPOSE An interrupt is a signal that temporarily stops the normal execution of a program, allowing the processor to handle external events or internal exceptions. These events can be a key being pressed on the keyboard, data arriving from a serial port or a timer reaching zero.

ugbasic:user:kw:end

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual END SYNTAX END PURPOSE The END command is used to terminate the execution of a program. When the computer encounters this command, it stops executing subsequent instructions. Generally, the END command is placed at the end of a program to indicate its conclusion. It can be used within the program to interrupt execution in a controlled manner, for example when a particular condition occurs.

ugbasic:user:kw:end_gameloop

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual END GAMELOOP SYNTAX END GAMELOOP PURPOSE Define the ending point of a game loop. EXAMPLE END GAMELOOP ABBREVIATION EeGl AVAILABLE ON * * Commodore 64 * Commodore 128 (Zilog Z80) * Commodore 128 (MOS 8502) * ColecoVision

ugbasic:user:kw:endif

Anonymous (anonymous@undisclosed.example.com) — 2021-04-28T14:44:50+00:00

ugBASIC User Manual ENDIF SYNTAX * ENDIF PURPOSE Implement the end of conditional jump. EXAMPLE IF ( x == 42 ) THEN x = 0: ENDIF AVAILABLE ON * Commodore 64 * ZX Spectrum 48K SEE ALSO

ugbasic:user:kw:endselect

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ENDSELECT SYNTAX CASE expression PURPOSE The ENDSELECT command is part of SELECT...ENDSELECT construct, and delimit the end of the SELECT CASE. EXAMPLE SELECT CASE answer CASE 42 PRINT "The answer!" CASE ELSE PRINT "I am still thinking..." ENDSELECT

ugbasic:user:kw:envelope

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ENVELOPE SYNTAX ENVELOPE voice, attack, decay, sustain, release PURPOSE The ENVELOPE command is used to define the volume of a sound over time, or its envelope. In simpler terms, it allows you to create richer and more complex sound effects, by defining the initial phase in which the sound rapidly increases in volume, the phase in which the sound decreases in volume, the final phase in which the sound fades away until it disappears. The

ugbasic:user:kw:error

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:every...call

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EVERY...CALL ✓ SYNTAX EVERY value[,timer] TICKS CALL identifier PURPOSE The EVERY allows to execute a procedure at specified intervals of time. It is especially useful for creating animations, handling real-time events, and simulating dynamic behavior in your programs. You can give the

ugbasic:user:kw:every...gosub

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EVERY...GOSUB ✓ SYNTAX EVERY value[,timer] TICKS CALL identifier EVERY value TICKS GOSUB identifier PURPOSE The EVERY allows to call a subroutine at specified intervals of time. It is especially useful for creating animations, handling real-time events, and simulating dynamic behavior in your programs. You can give the

ugbasic:user:kw:every_off

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EVERY OFF ✓ SYNTAX EVERY OFF [timer] PURPOSE With EVERY OFF you can enable (or re-enable) the timed calls. EXAMPLE EVERY OFF See also the following example files: * control_periodic_02.bas * control_periodic_03.bas ABBREVIATION EvOf AVAILABLE ON * * Dragon 32 (6809)

ugbasic:user:kw:every_on

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EVERY ON ✓ SYNTAX EVERY ON [timer] PURPOSE With EVERY ON you can enable (or re-enable) the timed calls. EXAMPLE EVERY ON See also the following example files: * control_periodic_02.bas * control_periodic_03.bas ABBREVIATION EvON AVAILABLE ON * * Dragon 32 (6809)

ugbasic:user:kw:exec

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EXEC ✓ SYNTAX EXEC address _ [ WITH REG(r1)=v1[, REG(r2)=v2 [, ... ] ] ] _ [ RETURN x1=REG(r1)[, x2=REG(r2)[, ... ] ] ] _ [ ON target1[, target2[, ... ] ] ] PURPOSE This command allows you to start the execution of a subroutine, written directly in machine language, starting from the indicated address. It must be noted that this jump is intended as a return: any assembly instruction that returns from execution will continue the execution of th…

ugbasic:user:kw:exit

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EXIT ✓ SYNTAX EXIT [number] PURPOSE The EXIT command is used to stop execution of a specific block of code and transfer control of the program to the first statement following that block. It is often used inside FOR...NEXT

ugbasic:user:kw:exit_if

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EXIT IF ✓ SYNTAX EXIT IF expression[, number] EXIT number IF expression PURPOSE The instruction forces the program to leave a loop, such as FOR...NEXT, REPEAT...UNTIL, WHILE...WEND and DO...LOOP under a specific set of conditions. The

ugbasic:user:kw:exit_proc

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EXIT PROC ✓ SYNTAX EXIT PROC PURPOSE EXAMPLE EXIT PROC See also the following example files: * procedures_jumping_02.bas ABBREVIATION ExPrb AVAILABLE ON ALIAS FOR POP PROCEDURE EXIT PROCEDURE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:exit_proc_if

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EXIT PROC IF ✓ SYNTAX EXIT PROC IF expression PURPOSE EXAMPLE EXIT PROC IF See also the following example files: * procedures_jumping_02.bas ABBREVIATION ExPrbIf AVAILABLE ON ALIAS FOR EXIT PROCEDURE IF ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:exit_proc_with...if

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EXIT PROC WITH...IF SYNTAX EXIT PROC WITH value IF expression PURPOSE EXAMPLE PROCEDURE test[ x AS INTEGER ] EXIT PROC WITH 0 IF x > 10 PRINT "X is less or equal to 10" RETURN 1 END PROC ABBREVIATION ExPrbWiIf

ugbasic:user:kw:exit_procedure

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EXIT PROCEDURE SYNTAX EXIT PROCEDURE PURPOSE The EXIT PROCEDURE command is used to stop execution of a specific procedure, and transfer control of the program to the first statement following the calling of that procedure.

ugbasic:user:kw:exit_procedure_if

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EXIT PROCEDURE IF SYNTAX EXIT PROCEDURE IF expression PURPOSE The EXIT PROCEDURE IF command is used to stop execution of a specific procedure, and transfer control of the program to the first statement following the calling of that procedure, in case an expression is true.

ugbasic:user:kw:exit_procedure_with...if

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EXIT PROCEDURE WITH...IF SYNTAX EXIT PROCEDURE WITH value IF expression PURPOSE The EXIT PROCEDURE WITH...IF command is used to stop execution of a specific function, and transfer control of the program to the first statement following the calling of that procedure, giving back a value in case an expression is true.

ugbasic:user:kw:exp

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual EXP SYNTAX = EXP(number) PURPOSE The EXP command is a mathematical function that calculates the natural exponential of a number. In other words, it raises Napier's number (e = 2.71828) to the specified power. The EXP function has numerous applications in mathematics, science, and engineering. It is used to describe phenomena that grow at a rate proportional to the amount present, such as population growth or radioactive decay. The natural exponential is closely re…

ugbasic:user:kw:fade

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fade_in

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fade_out

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fcircle

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fheight

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:file

Anonymous (anonymous@undisclosed.example.com) — 2024-10-21T21:26:22+00:00

ugBASIC User Manual FILE ✓ SYNTAX FILE source [AS target] PURPOSE The FILE command, inserted inside a BEGIN STORAGE - ENDSTORAGE block, allows you to define the content of the mass storage element. The basic syntax requires indicating the name of the

ugbasic:user:kw:file_size

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:filesize

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:find_height

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:find_port

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual FIND PORT SYNTAX port = FIND PORT( sessionId, username, application ) PURPOSE The FIND PORT function is needed to find out a port where to send message. To send a message, we need to know the address of that message port. A message box is identified by a unique identifier, called

ugbasic:user:kw:find_width

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fire

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T19:35:10+00:00

ugBASIC User Manual FIRE SYNTAX = FIRE( port ) PURPOSE Read the joystick port and check for “fire button” bit. EXAMPLE x = FIRE(0) ABBREVIATION Fi AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502) * Commodore 128 (Zilog Z80)

ugbasic:user:kw:flash

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:flip

Anonymous (anonymous@undisclosed.example.com) — 2023-10-11T16:55:40+00:00

ugBASIC User Manual FLIP ✓ SYNTAX = FLIP( [string] ) PURPOSE This function will flip a given string, reversing the order of letters. EXAMPLE x = FLIP( "test" ) See also the following example files: * strings_flip_01.bas ABBREVIATION Fl AVAILABLE ON *

ugbasic:user:kw:flip_image

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual FLIP IMAGE SYNTAX FLIP IMAGE resource [X|Y|XY|YX] FLIP IMAGE resource FRAME frame [X|Y|XY|YX] FLIP IMAGE resource STRIP sequence FRAME frame [X|Y|XY|YX] FLIP [X|Y|XY|YX] IMAGE resource FLIP [X|Y|XY|YX] IMAGE resource FRAME frame FLIP [X|Y|XY|YX] IMAGE resource STRIP sequence FRAME frame FLIP IMAGE resource DIRECTION direction FLIP IMAGE resource FRAME frame DIRECTION direction FLIP IMAGE resource STRIP sequence FRAME frame DIRECTION direction F…

ugbasic:user:kw:font_height

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T20:19:05+00:00

ugBASIC User Manual FONT HEIGHT SYNTAX = FONT HEIGHT PURPOSE This function allows you to obtain the height of the current font, expressed in pixels. The height depends on the currently selected graphics mode, and it can change at runtime. There is also a compile-level function for this keyword, which is called when the value is used to initialize a constant. In this case, the value is that taken from inspecting the instructions at the time of compilation.

ugbasic:user:kw:font_load

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual FONT LOAD SYNTAX FONT LOAD filename [TO index] PURPOSE The FONT LOAD command allows you to load an image and to convert it into a font. The command support a set of modern image format, like: * JPEG baseline & progressive

ugbasic:user:kw:font_width

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T20:19:05+00:00

ugBASIC User Manual FONT WIDTH SYNTAX = FONT WIDTH PURPOSE This function allows you to obtain the width of the current font, expressed in pixels. The width depends on the currently selected graphics mode, and it can change at runtime. There is also a compile-level function for this keyword, which is called when the value is used to initialize a constant. In this case, the value is that taken from inspecting the instructions at the time of compilation.

ugbasic:user:kw:for...next

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual FOR...NEXT ✓ SYNTAX FOR var = start TO end [ STEP increment ] ... NEXT [var] PURPOSE The FOR...NEXT is a basic tool for executing a block of code a specified number of times. It is a control structure that creates a loop, which is a segment of code that is repeated until a certain condition is met. Once inside the loop, the index used to loop can be read and modified by the program as if it is a normal variable.

ugbasic:user:kw:for_..._next

Anonymous (anonymous@undisclosed.example.com) — 2021-04-29T11:41:26+00:00

ugBASIC User Manual FOR ... NEXT SYNTAX * FOR [identifier] = [expression] TO [expression] { STEP [expression] } * FOR [identifier] = [expression] TO [expression] { STEP [expression] } PURPOSE Implement an conditional loop. Implement an conditional loop.

ugbasic:user:kw:forbid

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual FORBID SYNTAX FORBID PURPOSE In some situations, it is necessary to ensure that a sequence of operations is executed atomically, without interruption. The FORBID instruction plays a crucial role in this way, offering the programmer a way to take full control of the system's execution, at least temporarily.

ugbasic:user:kw:frame

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual FRAME SYNTAX = FRAME(images) PURPOSE EXAMPLE animazione := LOAD ATLAS("images.png") FRAME SIZE (16, 16) FOR i = 0 TO FRAME(animazione) PRINT "frame ";i NEXT ABBREVIATION Fr AVAILABLE ON ALIAS FOR FRAMES IMAGES COUNT IMAGE COUNT ANY PROBLEM?

ugbasic:user:kw:frames

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual FRAMES ✓ SYNTAX = FRAMES(images) PURPOSE This function allows you to obtain the number of frames that make up a set of images (ATLAS). If applied to a single image resource (IMAGE), however, it always returns 1. The value is obtained by retrieving it from the resource itself, and therefore is constant for the entire duration of the execution.

ugbasic:user:kw:frames_count

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual FRAMES COUNT ✓ SYNTAX = FRAMES COUNT(images) PURPOSE EXAMPLE animazione := LOAD IMAGES("images.png") FRAME SIZE (16, 16) FOR i = 0 TO FRAMES COUNT(animazione) PRINT "frame ";i NEXT See also the following example files:

ugbasic:user:kw:free

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual FREE SYNTAX ... = FREE PURPOSE Retrieves the free space still available for strings, in terms of bytes. This is how many characters are still available to be stored. The maximum value when calling this function is that indicated by the

ugbasic:user:kw:freeze

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fsize

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_bytes

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_close

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_connected

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_device

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_error

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_http_post_bin

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_login

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_open

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_parse_json

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_password

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_read

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_ready

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_set_channel_mode

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_set_json_query

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_status

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fujinet_write

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:function

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:fwidth

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:get

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual GET SYNTAX GET var PURPOSE EXAMPLE GET tasto ABBREVIATION Ge AVAILABLE ON ALIAS FOR INKEY ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:get_bitmap

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual GET BITMAP SYNTAX GET BITMAP var FROM [x], [y] PURPOSE The purpose of the GET BITMAP command is to store the contents of the screen in a variable, just the bitmap component so without color component. The syntax requires the point from which to start storing the image, whose dimensions are implicitly obtained from the variable. This command ssupports

ugbasic:user:kw:get_image

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual GET IMAGE SYNTAX GET IMAGE var FROM [x], [y] GET (x1,y1) - (x2,y2), var[, G] PURPOSE The purpose of the GET IMAGE command is to store the contents of the screen in a variable. The first syntax is where the programmer provides the coordinates of the rectangle to be stored. This syntax will store only the bitmap of the image. You need to give the

ugbasic:user:kw:get_message

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual GET MESSAGE SYNTAX = [DOJO] GET [MESSAGE]( port[, channel] ) [DOJO] GET [MESSAGE] port[, channel], variable PURPOSE The GET MESSAGE statement allows you to retrieve the message present on the specified port (port), and possibly on the specific channel (

ugbasic:user:kw:global

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual GLOBAL ✓ SYNTAX GLOBAL var[, var[, ...]] GLOBAL string GLOBAL [var1[, var2[, ...] ]] GLOBAL "string1"[, "string2"[, ...] ] GLOBAL : REM is like GLOBAL "*" PURPOSE When you write a program, variables are like containers that store data. Depending on where you declare them, these variables can have different

ugbasic:user:kw:global_const

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual GLOBAL CONST ✓ SYNTAX [POSITIVE] GLOBAL CONST identifier = value GLOBAL CONST identifier IN (min,max) = value GLOBAL CONST identifier IN "[" min,max) = value GLOBAL CONST identifier IN (min,max "]" = value GLOBAL CONST identifier IN "[" min,max "]"" = value

ugbasic:user:kw:gold

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual GOLD SYNTAX = GOLD PURPOSE This keyword represents the color gold. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:gosub

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual GOSUB ✓ SYNTAX GOSUB label PURPOSE The GOSUB command allows you to “jump” to a specific part of the program, execute a set of instructions and then return exactly to the point where you started. It allows you to break a program into smaller, more manageable blocks of code, improving readability and maintenance. A subroutine can be called multiple times from different parts of the program, avoiding rewriting the same code multiple times. It helps organize the flow …

ugbasic:user:kw:goto

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual GOTO ✓ SYNTAX GOTO label GOTO number PURPOSE The GOTO command is a statement that allows you to jump unconditionally to another part of the program. In practice, instead of executing the instructions in sequence, the program

ugbasic:user:kw:gr_locate

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual GR LOCATE ✓ SYNTAX GR LOCATE [x], [y] PURPOSE The GR LOCATE allows you to position the graphics cursor in a specific position on the screen, thus preparing the ground for subsequent drawing operations, such as printing text, drawing lines or shapes.

ugbasic:user:kw:graphic

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual GRAPHIC SYNTAX GRAPHIC PURPOSE Do a quickly initialization with the high resolution graphics mode. EXAMPLE GRAPHIC ABBREVIATION Gr AVAILABLE ON ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:graphics

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:green

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual GREEN ✓ SYNTAX = GREEN PURPOSE This keyword represents the color green. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space, usually (0,204,85)

ugbasic:user:kw:grey

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual GREY SYNTAX = GREY PURPOSE This keyword represents the color grey. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:halt

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual HALT SYNTAX HALT PURPOSE This instruction stops the program execution, in “busy” mode. The implementation is by means of an infinite loop, which is executed when the instruction is executed. With this expedient, the execution of interrupts will continue without being interrupted while all other operations will be interrupted, including multithreading.

ugbasic:user:kw:has_bit

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual HAS BIT ✓ SYNTAX = value HAS BIT position PURPOSE Think of a number as a sequence of switches, each of which can be on (1) or off (0). Each switch represents a bit. The HAS BIT instruction will check a bit on (1), by checking the state of a specific switch within this sequence. The parameter

ugbasic:user:kw:has_not_bit

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual HAS NOT BIT ✓ SYNTAX = value HAS NOT BIT position PURPOSE Think of a number as a sequence of switches, each of which can be on (1) or off (0). Each switch represents a bit. The HAS NOT BIT instruction will check a bit off (0), by checking the state of a specific switch within this sequence. The parameter

ugbasic:user:kw:hash_operator

Anonymous (anonymous@undisclosed.example.com) — 2024-10-17T17:45:03+00:00

ugBASIC User Manual hash operator SYNTAX = #constant PURPOSE In general, the hash operator (#) allows you to indicate the will to refer, explicitly, to a constant rather than to a value mediated by a variable. Without this operator, ugBASIC may decide to make a temporary copy of the value before using it. This can be inefficient. Therefore it is possible to indicate the will to actually refer to the equivalent value. For this reason, this operator works only if it is used with a const…

ugbasic:user:kw:height

Anonymous (anonymous@undisclosed.example.com) — 2024-05-06T19:46:29+00:00

ugBASIC User Manual HEIGHT ✓ SYNTAX = HEIGHT PURPOSE This function allows you to obtain the height of the current screen, expressed in pixels. The height depends on the currently selected graphics mode, and can change at runtime. There is also a compile-level function for this keyword, which is called when the value is used to initialize a constant. In this case, the value is that taken from inspecting the instructions at the time of compilation.

ugbasic:user:kw:hex

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual HEX SYNTAX = HEX(expression) PURPOSE The HEX statement is used to convert a decimal number to a hexadecimal number. Hexadecimal, or base 16, is a numbering system that uses 16 digits (0 through 9 and the letters A through F) to represent numbers.

ugbasic:user:kw:hires

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual HIRES ✓ SYNTAX HIRES ink, paper PURPOSE `HIRES` is used to switch from text to high-resolution graphics mode and to use the specified colors: ink for the writing color and paper for the background color (both with values from 0 to

ugbasic:user:kw:hit

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual HIT SYNTAX = HIT(#sprite) = HIT(var) PURPOSE Verify if a sprite has had a collision with a tile. The result (0 = no collision, <> 0 = collision occurred) is returned as result. EXAMPLE IF HIT( starship ) THEN POINT AT (100,100) ENDIF

ugbasic:user:kw:home

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T21:19:56+00:00

ugBASIC User Manual HOME ✓ SYNTAX HOME PURPOSE The HOME command moves the text cursor back to the top left-hand corner of the screen in a hurry. EXAMPLE HOME See also the following example files: * texts_position_02.bas ABBREVIATION Hm AVAILABLE ON *

ugbasic:user:kw:hscroll

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual HSCROLL SYNTAX HSCROLL LEFT HSCROLL SCREEN LEFT HSCROLL RIGHT HSCROLL SCREEN RIGHT PURPOSE Il comando HSCROLL permette di effettuare lo scrolling orizzontale, sia di una singola linea che di tutto lo scherrmo, a destra oppure a sinistra.

ugbasic:user:kw:if...then...else...elseif...endif

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual IF...THEN...ELSE...ELSEIF...ENDIF ✓ SYNTAX IF expression THEN ... ELSE ... ENDIF IF expression THEN ... ELSEIF expression2 THEN ... ... ELSE ... ENDIF IF expression THEN GOTO number IF expression THEN number [ELSE number] IF expression THEN statement

ugbasic:user:kw:if...then...else...endif

Anonymous (anonymous@undisclosed.example.com) — 2023-10-11T17:43:05+00:00

ugBASIC User Manual IF...THEN...ELSE...ENDIF SYNTAX PURPOSE ABBREVIATION IfThElEi ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:if...then

Anonymous (anonymous@undisclosed.example.com) — 2021-04-28T15:02:48+00:00

ugBASIC User Manual IF...THEN ✓ SYNTAX * IF [ expression ] THEN : ... : { ELSE : ... : } ENDIF PURPOSE Implement a conditional jump. This implementation assumes that an expression passed as a parameter is 0 (for false) and not zero (for true). In this case, if the expression is zero, it jumps directly to the statement following the corresponding

ugbasic:user:kw:if

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T21:19:56+00:00

ugBASIC User Manual IF SYNTAX = IF (exp, valueTrue, valueFalse ) PURPOSE The IF function allows you to evaluate whether a certain expression is TRUE (not 0) or FALSE. (0). Depending on that check, the function will return the second (if TRUE) or third (if

ugbasic:user:kw:if_..._then

Anonymous (anonymous@undisclosed.example.com) — 2021-04-28T14:44:50+00:00

ugBASIC User Manual IF ... THEN SYNTAX * IF [ expression ] THEN * IF [ expression ] THEN ... ELSE ... PURPOSE Implement the conditional jump. This implementation assumes that an expression passed as a parameter is 0 (for false) and not zero (for true). In this case, if the expression is zero, it jumps directly to the statement following the corresponding ENDIF. Otherwise, the following code will be executed (up to ENDIF).

ugbasic:user:kw:image

Anonymous (anonymous@undisclosed.example.com) — 2024-10-21T14:19:39+00:00

ugBASIC User Manual IMAGE SYNTAX = IMAGE( resource FRAME num ) = IMAGE( resource SEQUENCE seq FRAME num ) PURPOSE The IMAGE command allows you to extract an image from a collection of images stored in an IMAGES or SEQUENCE variable. Note that extraction occurs at compile time: therefore, no extra resources are allocated in the compiled program. This command is intended for all those commands that need an image to function, but want to exploit a graphic resource already loaded and opt…

ugbasic:user:kw:image_from_buffer

Anonymous (anonymous@undisclosed.example.com) — 2024-10-25T20:30:05+00:00

ugBASIC User Manual IMAGE from buffer SYNTAX = (IMAGE)#[hexadecimal string] PURPOSE The (IMAGE)#[...] command allows you to load an image from a buffer. EXAMPLE starship = (IMAGE)#[100010100010ff20ff20...ffff] ABBREVIATION Imfrombuffer AVAILABLE ON

ugbasic:user:kw:image_height

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual IMAGE HEIGHT SYNTAX = IMAGE HEIGHT(image) PURPOSE This function allows you to obtain the height of a given IMAGE or a given set of IMAGES. The height is expressed in pixels. There is also a compile-level function for this keyword, which is called when the value is used to initialize a constant. In this case, the value is that taken from inspecting the instructions at the time of compilation.

ugbasic:user:kw:image_load

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual IMAGE LOAD SYNTAX PURPOSE ABBREVIATION ImLd ALIAS FOR LOAD IMAGE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:image_width

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual IMAGE WIDTH SYNTAX = IMAGE WIDTH(image) PURPOSE This function allows you to obtain the width of a given IMAGE or a given set of IMAGES. The width is expressed in pixels. There is also a compile-level function for this keyword, which is called when the value is used to initialize a constant. In this case, the value is that taken from inspecting the instructions at the time of compilation.

ugbasic:user:kw:images_count

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual IMAGES COUNT ✓ SYNTAX = IMAGES COUNT(images) PURPOSE EXAMPLE animazione := LOAD IMAGES("images.png") FRAME SIZE (16, 16) FOR i = 0 TO IMAGES COUNT(animazione) PRINT "frame ";i NEXT See also the following example files:

ugbasic:user:kw:images_from_buffer

Anonymous (anonymous@undisclosed.example.com) — 2024-10-25T20:30:05+00:00

ugBASIC User Manual IMAGES from buffer SYNTAX PURPOSE The (IMAGES)#[...] command allows you to load an image and to convert in an array of images, starting from a buffer. ABBREVIATION Imsfrombuffer ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:images_load

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual IMAGES LOAD SYNTAX PURPOSE ABBREVIATION ImsLd ALIAS FOR LOAD ATLAS ATLAS LOAD LOAD IMAGES ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:in

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual IN SYNTAX = IN(port) PURPOSE The IN command is used to read a value from a specific input/output (I/O) port. The port parameter indicates the exact address of the I/O port from which you want to acquire the data. The port address varies depending on the architecture of the computer and the connected peripheral.

ugbasic:user:kw:inc

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual INC ✓ SYNTAX INC var PURPOSE The INC command is used to increment (i.e. increase) the value of a numeric variable by one. It is a quick and concise way to add 1 from the value contained in a variable. In place of variable

ugbasic:user:kw:include

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual INCLUDE SYNTAX INCLUDE filename PURPOSE The INCLUDE command allows you to insert a source from an external file. In practice, what happens is that the content of the file, without any interpretation, is copied “as is” at the point where the statement was inserted. All variables and scopes will be maintained.

ugbasic:user:kw:ink

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual INK SYNTAX INK color PURPOSE EXAMPLE INK 4 ABBREVIATION Ik AVAILABLE ON ALIAS FOR PEN ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:inkb

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:inkey

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual INKEY SYNTAX = INKEY$ PURPOSE The INKEY' (or INKEY$) capture a single character typed by the user without having to press enter. In other words, the program is “listening” to the keyboard and, as soon as a key is pressed,

ugbasic:user:kw:input

Anonymous (anonymous@undisclosed.example.com) — 2024-07-28T13:11:22+00:00

ugBASIC User Manual INPUT ✓ SYNTAX INPUT var1 [, var2 [, ..]] [;] INPUT [prompt;] [var1] [, var2 [, ..]] [;] INPUT [prompt,] [var1] [, var2 [, ..]] [;] PURPOSE The INPUT provides a standard way of entering information into one or more variables. There are two possible formats for this instruction.

ugbasic:user:kw:insert

Anonymous (anonymous@undisclosed.example.com) — 2024-10-21T19:17:37+00:00

ugBASIC User Manual INSERT ✓ SYNTAX = INSERT(,,) PURPOSE INSERT inserts the character string (first argument) into the character string (second argument) starting at the position (third argument), whereby the counting starts with

ugbasic:user:kw:inst

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual INST ✓ SYNTAX = INST( string, alt, pos ) PURPOSE The INST function overwrites the characters of the string alt' with the character string string (first argument) in the character string alt (second argument) from the position

ugbasic:user:kw:instr

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual INSTR ✓ SYNTAX = INSTR( text, searched [, start] ) PURPOSE This function can be called to search through strings for individual characters or sub-strings: it allows you to search for all instances of one string inside another. The string is searched for the first occurrence of the second strings. If it is found, its location will be reported in the form of the number of characters from the left-hand side of the searched string. If the search is unsuccessful, a result…

ugbasic:user:kw:instrument

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual INSTRUMENT SYNTAX INSTRUMENT #instrument [ON #channels] INSTRUMENT name [ON #channels] PURPOSE This command allows you to select one of the available tools. Instruments can be set for all voices, or for a set of particular voices.

ugbasic:user:kw:is

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual IS ✓ SYNTAX = value IS position PURPOSE EXAMPLE IF x IS 2 THEN: PRINT "bit 2 is 1!": ENDIF See also the following example files: * controls_joy_02.bas * controls_keyboard_03.bas AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502)

ugbasic:user:kw:is_not

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual IS NOT ✓ SYNTAX = value IS NOT position PURPOSE EXAMPLE IF x IS NOT 2 THEN: PRINT "bit 2 is 0": ENDIF See also the following example files: * controls_joy_02.bas * controls_keyboard_05.bas ABBREVIATION ISNt AVAILABLE ON * * Atari (400/800) * Atari XL/XE

ugbasic:user:kw:jdown

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual JDOWN SYNTAX = JDOWN( port ) PURPOSE Read the joystick port and check for “direction down” bit. EXAMPLE x = JDOWN(0) ABBREVIATION Jd AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502)

ugbasic:user:kw:jfire

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual JFIRE SYNTAX = JFIRE( port ) PURPOSE Read the joystick port and check for “fire button” bit. EXAMPLE x = JFIRE(0) ABBREVIATION Jf AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502) *

ugbasic:user:kw:jleft

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual JLEFT SYNTAX = JLEFT( port ) PURPOSE Read the joystick port and check for “direction left” bit. EXAMPLE x = JLEFT(0) ABBREVIATION Jl AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502)

ugbasic:user:kw:jmove

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:joy

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual JOY SYNTAX = JOY( port ) PURPOSE Read the value from the joystick port. EXAMPLE x = JOY(0) ABBREVIATION Jy AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502) * Commodore 128 (Zilog Z80)

ugbasic:user:kw:joy_count

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T21:09:58+00:00

ugBASIC User Manual JOY COUNT SYNTAX = JOY COUNT PURPOSE Read the number of joysticks installed into the system. EXAMPLE x = JOY COUNT ABBREVIATION JyC% AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502) *

ugbasic:user:kw:joy_x

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual JOY X SYNTAX = JOY X( port ) PURPOSE Read the horizontal axys of an analogical joystick, if it is present. A negative value means “left” while a positive one means “right”. The value near 0 means “no direction”.

ugbasic:user:kw:joycount

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual JOYCOUNT SYNTAX = JOYCOUNT PURPOSE Read the number of joysticks installed into the system. EXAMPLE x = JOYCOUNT ABBREVIATION Jyc AVAILABLE ON ALIAS FOR JOY COUNT ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:joydir

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:joyx

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual JOYX SYNTAX = JOYX( port ) PURPOSE EXAMPLE x = JOYX(0) ABBREVIATION Jyx AVAILABLE ON * TRS-80 Color Computer * TRS-80 Color Computer 3 * Dragon 32 * Dragon 64 ALIAS FOR JOY X ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:joyy

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual JOYY SYNTAX = JOY Y( port ) = JOYY( port ) PURPOSE Read the vertical axys of an analogical joystick, if it is present. A negative value means “up” while a positive one means “down”. The value near 0 means “no direction

ugbasic:user:kw:jright

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual JRIGHT SYNTAX = JRIGHT( port ) PURPOSE Read the joystick port and check for “direction right” bit. EXAMPLE x = JRIGHT(0) ABBREVIATION Jr AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502)

ugbasic:user:kw:jup

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual JUP SYNTAX = JUP( port ) PURPOSE Read the joystick port and check for “direction up” bit. EXAMPLE x = JUP(0) ABBREVIATION Ju AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502) * Commodore 128 (Zilog Z80)

ugbasic:user:kw:key_pressed

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual KEY PRESSED SYNTAX = KEY PRESSED(keycode) PURPOSE The KEY PRESSED command allows you to know the pressing state of a single specific key, during the “duty cycle” of the keyboard driver. The reading is deferred: therefore, it is possible to detect the pressing of just one key at a time but there is no possibility that the pressing of the key is not detected.

ugbasic:user:kw:key_shift

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual KEY SHIFT SYNTAX = KEY SHIFT PURPOSE The KEY SHIFT function returns the current status of the various control keys. These keys such as SHIFT or ALT cannot be detected using the standard INKEY$ or SCANCODE functions. But you can easily test for any combination of control keys with just a single call to the

ugbasic:user:kw:key_state

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual KEY STATE SYNTAX = KEY STATE(keycode) PURPOSE The KEY STATE command allows you to know the pressing state of a single specific key. The reading is immediate: therefore, it is possible to detect the pressing of even more than one key at a time and, if the user is too fast or the program is too slow, there is the possibility that the pressing of the key is not detected.

ugbasic:user:kw:keyget

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual KEYGET SYNTAX KEYGET variable PURPOSE The KEYGET' capture a single character typed by the user without having to press enter. In other words, the program is “listening” to the keyboard and, as soon as a key is pressed,

ugbasic:user:kw:keyshift

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual KEYSHIFT SYNTAX = KEYSHIFT PURPOSE EXAMPLE CENTER "Press some control keys" DO LOCATE 14, 4 PRINT BIN$(KEYSHIFT, 8) LOOP ABBREVIATION Ks AVAILABLE ON ALIAS FOR KEY SHIFT ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:keystate

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual KEYSTATE SYNTAX = KEY STATE(keycode) PURPOSE ABBREVIATION Kt ALIAS FOR KEY STATE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:kill

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual KILL SYNTAX KILL id[,id[,...]] PURPOSE The KILL command terminates the execution of a thread, thereby stopping its execution and returning it to a “terminated” state. This command occurs regardless of what the thread is doing; therefore, it can cause processes or procedures to fail. Any thread can be killed at any time, as long as it is active. If a thread is not active, killing it will have no effect. You can interrupt a set of threads contained in an array by sup…

ugbasic:user:kw:labels

Anonymous (anonymous@undisclosed.example.com) — 2023-10-08T22:00:42+00:00

ugBASIC User Manual labels ✓ SYNTAX number instruction label: instruction [label:] instruction PURPOSE In ugBASIC it is possible to indicate the position within a program with the use of so-called “labels”. The labels can be represented in the BASIC standard, i.e. with numeric labels, or with alphanumeric labels, and are used to jump within specific positions of the program.

ugbasic:user:kw:lavender

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual LAVENDER SYNTAX = LAVENDER PURPOSE This keyword represents the color lavender. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:lbottom

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:lbound

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LBOUND SYNTAX = LBOUND( array [, dimension]) PURPOSE The LBOUND command (short for “lower bound”) is used to determine the lowest index of an array. In other words, it tells you where the count of elements in an array begins.

ugbasic:user:kw:lcase

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LCASE SYNTAX = LCASE( text ) PURPOSE EXAMPLE x = LCASE( "ugBASIC" ) ABBREVIATION Lca AVAILABLE ON ALIAS FOR LOWER ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:left

Anonymous (anonymous@undisclosed.example.com) — 2024-10-21T23:20:33+00:00

ugBASIC User Manual LEFT ✓ SYNTAX = LEFT( text, position ) PURPOSE The LEFT command replaces the leftmost characters in the destination string with the equivalent characters from the given strings. The command has two parameters. The first parameter is the string expression to change.

ugbasic:user:kw:leftb

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:leftw

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:len

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LEN ✓ SYNTAX = LEN( text ) PURPOSE the LEN command (short for “length”) is used to determine the length of a string, or the total number of characters in the string. This is a very useful command when you need to know the size of a string to perform manipulation or comparison operations.

ugbasic:user:kw:light_blue

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual LIGHT BLUE SYNTAX = LIGHT BLUE PURPOSE This keyword represents the color light blue. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:light_green

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual LIGHT GREEN SYNTAX = LIGHT GREEN PURPOSE This keyword represents the color light green. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:light_grey

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual LIGHT GREY SYNTAX = LIGHT GREY PURPOSE This keyword represents the color light grey. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:light_red

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual LIGHT RED SYNTAX = LIGHT RED PURPOSE This keyword represents the color light red. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:line

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LINE ✓ SYNTAX LINE [x1], [y1] TO x2, y2[, c] LINE TO x2, y2[, c] LINE (x1,y1) - (x2,y2)[,mode] PURPOSE EXAMPLE LINE 10,10 TO 100,100,WHITE LINE TO 100,100 See also the following example files: * graphics_color_01.bas * graphics_lines_01.bas * graphics_shapes_01.bas *

ugbasic:user:kw:line_input

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LINE INPUT SYNTAX LINE INPUT [prompt];v1 LINE INPUT [prompt],v1 PURPOSE The LINE INPUT command takes a complete line of text entered by the user and assign it to a string variable. Unlike the INPUT command, which stops at the first comma or space,

ugbasic:user:kw:little_endian

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T15:01:28+00:00

ugBASIC User Manual LITTLE ENDIAN SYNTAX = LITTLE ENDIAN PURPOSE Returns not zero if the CPU has little endian byte order, zero otherwise. EXAMPLE IF LITTLE ENDIAN THEN : PRINT "LITTLE ENDIAN" : ENDIF ABBREVIATION LitEnd AVAILABLE ON *

ugbasic:user:kw:load

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOAD ✓ SYNTAX = LOAD( filename[,address] ) = LOAD( filename AS alias[,address] ) PURPOSE The LOAD command allows you to load a generic binary file from the file system of the host system and use it, as a buffer, directly in the program. Loading occurs at compile time: there is no access to the target system's file system. If multiple uploads are made to the same file, a single buffer will still be generated.

ugbasic:user:kw:load_atlas

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOAD ATLAS SYNTAX = LOAD ATLAS( filename [AS alias][,mode] ) frame [ORIGIN(dx,dy)] [fl] [tr] [op] [bg] [bk] [READONLY] = LOAD ATLAS( filename [AS alias][,mode] ) frame [fl] [tr] [op] [bg] [bk] [READONLY] frame : [ FRAME SIZE(w, h) [OFFSET(dx,dy)] [ORIGIN(zx, zy)] | FRAME AUTO] fl : [FLIP X] [FLIP Y] [FLIP XY] [FLIP YX] [COMPRESSED] [OVERLAYED] [EXACT] [ROLL X] [ROLL Y] [ROLL XY] [ROLL YX] tr : [TRANSPARENCY | TRANSPARENCY c…

ugbasic:user:kw:load_image

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOAD IMAGE ✓ SYNTAX = LOAD IMAGE( filename [AS alias][,mode] ) [fl] [tr] [op] [bg] [bk] [READONLY] fl : [FLIP X] [FLIP Y] [FLIPXY] [FLIPYX] [COMPRESSED] [OVERLAYED] [EXACT] tr : [TRANSPARENCY | TRANSPARENCY color] op : [OPACITY | OPACITY color] bg : [BACKGROUND color] bk : [UNBANKED | BANKED | BANKED(number)]

ugbasic:user:kw:load_images

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOAD IMAGES SYNTAX PURPOSE ABBREVIATION LdIms ALIAS FOR LOAD ATLAS ATLAS LOAD IMAGES LOAD ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:load_music

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOAD MUSIC SYNTAX = LOAD MUSIC( filename ) = LOAD MUSIC( filename AS alias ) PURPOSE The LOAD MUSIC command allows you to load a music file from the file system of the host system and use it, as music, directly in the program. Loading occurs at compile time: there is no access to the target system's file system. If multiple uploads are made to the same file, a single buffer will still be generated.

ugbasic:user:kw:load_sequence

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOAD SEQUENCE SYNTAX = LOAD SEQUENCE( filename [AS alias][,mode] ) frame [ORIGIN(dx,dy)] [fl] [tr] [op] [bg] [bk] [READONLY] = LOAD SEQUENCE( filename [AS alias][,mode] ) frame [fl] [tr] [op] [bg] [bk] [READONLY] frame : [ FRAME SIZE(w, h) [OFFSET(dx,dy)] [ORIGIN(zx, zy)] | FRAME AUTO] fl : [FLIP X] [FLIP Y] [FLIP XY] [FLIP YX] [COMPRESSED] [OVERLAYED] [EXACT] [ROLL X] [ROLL Y] [ROLL XY] [ROLL YX] tr : [TRANSPARENCY | TRANS…

ugbasic:user:kw:load_tile

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOAD TILE SYNTAX = LOAD TILE( filename [AS alias][,mode] ) [fl] fl : [FLIP X] [FLIP Y] [FLIP XY] [FLIP YX] fl : [ROLL X] [ROLL Y] [ROLL XY] [ROLL YX] PURPOSE The LOAD TILE command allows you to load an image and to convert it into an

ugbasic:user:kw:load_tilemap

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOAD TILEMAP SYNTAX = LOAD TILEMAP(filename) PURPOSE The LOAD TILEMAP command allow to load a TILEMAP datatype that will represent a map of those drawn by means of Tiled. EXAMPLE x = LOAD TILEMAP("dungeon.tmx") ABBREVIATION

ugbasic:user:kw:load_tiles

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOAD TILES SYNTAX = LOAD TILE( filename [AS alias][,mode] ) [fl] fl : [FLIP X] [FLIP Y] [FLIP XY] [FLIP YX] fl : [ROLL X] [ROLL Y] [ROLL XY] [ROLL YX] PURPOSE The LOAD TILES command allows you to load an image and to convert it into multiple

ugbasic:user:kw:load_tileset

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOAD TILESET SYNTAX = LOAD TILESET( filename ) = LOAD TILESET( filename AS alias ) PURPOSE The LOAD TILESET command allows you to load a tileset with the “Tiled TSX” file format. Offset and other parameters will be calculated automatically on the base of the file content.

ugbasic:user:kw:local_task_variable_operator

Anonymous (anonymous@undisclosed.example.com) — 2024-10-25T20:30:05+00:00

ugBASIC User Manual local task variable operator ✓ SYNTAX = [variable] [variable] = expression = [variable$] [variable$] = expression PURPOSE To guarantee the use of local variables within parallel procedures, since the procedure does not have a stack, it is necessary to prepare an array to contain this type of information. Therefore, using the array access operator, it is then possible to access the individual variables, using the task identifier as an index.

ugbasic:user:kw:locate

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOCATE ✓ SYNTAX LOCATE [x],[y] PURPOSE The LOCATE command moves the text cursor to specific coordinates, and this new location sets the start position for all subsequent text printing until commanded otherwise. All console positions are measured in “text coordinates”, which are measured in units of one printed character on console, with the x-coordinate controlling the horizontal position and the y-coordinate referring to the vertical.

ugbasic:user:kw:log

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOG SYNTAX = LOG(number) PURPOSE The LOG instruction calculate the natural logarithm of the given number, that must be FLOAT. This is a mathematical function that is the inverse of the natural exponential (with base e). In other words, the natural logarithm of a number

ugbasic:user:kw:login

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual LOGIN SYNTAX = LOGIN( username, password ) PURPOSE The LOGIN function will allow to connect with a DOJO server. On DOJO servers there is no different process between registration and access to the systems: this is because, in fact, it is unlikely that the user's situation has persisted on the retrocomputers. It follows that, at the first attempt to access, there will also be contextual registration of the user; after the first access, each subsequent access must ha…

ugbasic:user:kw:loop...end_loop

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOOP...END LOOP SYNTAX LOOP ... instructions ... END LOOP PURPOSE EXAMPLE LOOP x = x + 1 END LOOP ABBREVIATION LpEeLp AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502) * Commodore 128 (Zilog Z80)

ugbasic:user:kw:lower

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual LOWER ✓ SYNTAX = LOWER( text ) PURPOSE The LOWER function converts all uppercase characters in a string to lowercase. In other words, it takes a string as input and returns a new string that is identical to the first, but with all the letters lowercase.

ugbasic:user:kw:magenta

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual MAGENTA SYNTAX = MAGENTA PURPOSE This keyword represents the color magenta. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:max

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MAX ✓ SYNTAX = MAX(#const1,#const2) = MAX(val1,val2) = MAX(string1,string2) = MAX(array) PURPOSE The MAX function allows you to identify the greater of two values. If both terms are (numeric) constants, the evaluation is carried out at the time of compilation. Otherwise, the value is calculated at runtime.

ugbasic:user:kw:memclr

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:memcont

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:memdef

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:memlen

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:memload

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:memor

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:memorize

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MEMORIZE ✓ SYNTAX MEMORIZE PURPOSE The MEMORIZE command allows you to store the current position of the cursor, in terms of coordinates, relative to the current console. The cursor coordinates can be restored with the REMEMBER

ugbasic:user:kw:mempeek

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:mempos

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:memrestore

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:memsave

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:mid

Anonymous (anonymous@undisclosed.example.com) — 2024-10-22T16:57:16+00:00

ugBASIC User Manual MID ✓ SYNTAX MID( text, position[, len] ) = value PURPOSE The MID statement allows to change a (dynamic) string containing a specified number of characters from a string. It has three parameters. The first parameter is the string expression to modify.

ugbasic:user:kw:min

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MIN ✓ SYNTAX = MIN(#const1,#const2) = MIN(val1,val2) = MIN(string1,string2) = MIN(array) PURPOSE The MIN function allows you to identify the smaller of two values. If both terms are (numeric) constants, the evaluation is carried out at the time of compilation. Otherwise, the value is calculated at runtime.

ugbasic:user:kw:mmob

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:mmove

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MMOVE SYNTAX MMOVE [MEMORY] address1 TO [MEMORY] address2 SIZE size MMOVE [MEMORY] address1 TO VIDEO address2 SIZE size MMOVE VIDEO address1 TO [MEMORY] address2 SIZE size PURPOSE This command moves a block of memory of

ugbasic:user:kw:mob

Anonymous (anonymous@undisclosed.example.com) — 2023-05-25T13:38:52+00:00

ugBASIC User Manual MOB ✓ SYNTAX MOB [index],[image] {VISIBILE|HIDDEN} MOB [index],[image] AT {[x]},{[y]} {VISIBILE|HIDDEN} MOB([image]) PURPOSE The MOB command allows you to define a movable object. In order to be used, you must have loaded the image. The simplest syntax provides, in fact, the definition of the object. It is possible to indicate a starting position for the object, different from (0,0) and whether the object is visible or not. Additional syntaxes are available fo…

ugbasic:user:kw:mob_at

Anonymous (anonymous@undisclosed.example.com) — 2023-05-25T13:38:52+00:00

ugBASIC User Manual MOB AT ✓ SYNTAX MOB [index] AT {[x]},{[y]} PURPOSE The MOB AT command allows you to put a movable object on a specific position. EXAMPLE MOB 2 AT 200,200 See also the following example files: * mobs_example_01.bas ABBREVIATION Mb At AVAILABLE ON

ugbasic:user:kw:mob_hide

Anonymous (anonymous@undisclosed.example.com) — 2023-05-25T13:38:52+00:00

ugBASIC User Manual MOB HIDE ✓ SYNTAX MOB HIDE [index] PURPOSE The MOB HIDE command allows you to show (enable) a movable object. EXAMPLE MOB HIDE starship See also the following example files: * mobs_example_01.bas ABBREVIATION Mb Hd AVAILABLE ON * Commodore 64

ugbasic:user:kw:mob_off

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MOB OFF SYNTAX MOB OFF PURPOSE ABBREVIATION MbOf ALIAS FOR SPRITE DISABLE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:mob_on

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MOB ON SYNTAX MOB ON PURPOSE ABBREVIATION MbON ALIAS FOR SPRITE ENABLE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:mob_render

Anonymous (anonymous@undisclosed.example.com) — 2023-05-25T13:38:52+00:00

ugBASIC User Manual MOB RENDER ✓ SYNTAX MOB RENDER PURPOSE The MOB RENDER force the refresh of MOBs. EXAMPLE MOB RENDER See also the following example files: * mobs_example_01.bas ABBREVIATION Mb Rend AVAILABLE ON * Commodore 64 ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:mob_show

Anonymous (anonymous@undisclosed.example.com) — 2023-05-25T13:38:52+00:00

ugBASIC User Manual MOB SHOW ✓ SYNTAX MOB SHOW [index] PURPOSE The MOB SHOW command allows you to show (enable) a movable object. EXAMPLE MOB SHOW starship See also the following example files: * mobs_example_01.bas ABBREVIATION Mb Sh AVAILABLE ON * Commodore 64

ugbasic:user:kw:mod

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MOD SYNTAX = x MOD y PURPOSE The MOD operator is used to perform the modulo operation. This operation returns the remainder of the integer division of two numbers. The result of a MOD operation will not retain the sign of any, and so it may be only positive. The result is always in the range

ugbasic:user:kw:move

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:move_tile

Anonymous (anonymous@undisclosed.example.com) — 2023-10-11T19:03:59+00:00

ugBASIC User Manual MOVE TILE SYNTAX PURPOSE ABBREVIATION MvTl ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY

ugbasic:user:kw:movement

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:moving

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:msprite

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MSPRITE SYNTAX PURPOSE ABBREVIATION Msp ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY

ugbasic:user:kw:msprite_update

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MSPRITE UPDATE SYNTAX PURPOSE This instruction causes multiplexed sprites to be updated, where an asynchronous update has been requested. ABBREVIATION MspUpd ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:mul

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MUL SYNTAX MUL var, expr PURPOSE The MUL statement is used to multiply the value of a numeric variable by a specified amount. In other words, it is like multiply one number with another. It is the same as var = var * expr.

ugbasic:user:kw:multi

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MULTI SYNTAX MULTI color1, color2, color3 PURPOSE MULTI sets three of the colors of the C64's multicolor mode and switches the multicolor mode on. The fourth possible color (the background color, multicolor bit combination %00, controlled by memory address $D021) is defined with the

ugbasic:user:kw:multi_off

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MULTI OFF SYNTAX MULTI OFF PURPOSE MULTI OFF deactivates the multicolor mode. EXAMPLE MULTI OFF ABBREVIATION MltOf AVAILABLE ON SEE ALSO MULTI ON ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:multi_on

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MULTI ON SYNTAX MULTI ON PURPOSE MULTI ON activates the multicolor mode without setting any colors. EXAMPLE MULTI ON ABBREVIATION MltON AVAILABLE ON SEE ALSO MULTI OFF ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:music

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MUSIC SYNTAX MUSIC [LOOP] music [format] MUSIC music [format] [LOOP] PURPOSE The MUSIC command starts a piece of music from the music variable. This music will be played independently of your program, without affecting it in the slightest.

ugbasic:user:kw:music_pause

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MUSIC PAUSE SYNTAX MUSIC PAUSE PURPOSE The MUSIC PAUSE command allows you to temporarily suspend the performance of a piece of music. The suspension is carried out either by interrupting the execution of the notes and by setting the volume to zero. The music can be reactivated using the command

ugbasic:user:kw:music_resume

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MUSIC RESUME SYNTAX MUSIC RESUME PURPOSE The MUSIC RESUME command allows you to resume a suspended performance of a piece of music. The music can be suspended using the command MUSIC PAUSE. EXAMPLE MUSIC PAUSE: WAIT KEY: MUSIC RESUME

ugbasic:user:kw:music_seek

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MUSIC SEEK SYNTAX MUSIC SEEK position PURPOSE The MUSIC SEEK command allows you to move the reproduction to a specific position. EXAMPLE MUSIC SEEK 42 ABBREVIATION Mussk AVAILABLE ON * * Commodore 128 (Zilog Z80) *

ugbasic:user:kw:music_stop

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual MUSIC STOP SYNTAX MUSIC STOP PURPOSE The MUSIC STOP command allows you to halt definitively the performance of a piece of music. EXAMPLE MUSIC STOP ABBREVIATION MusSt AVAILABLE ON * Commodore 128 (Zilog Z80) * Commodore 128 (MOS 8502)

ugbasic:user:kw:new_atlas

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual NEW ATLAS SYNTAX = NEW ATLAS( frames, width, height ) PURPOSE The NEW ATLAS command allows you to define a memory area where you can store a set of images coming from the screen (with the GET IMAGE command), or from another graphic resource.

ugbasic:user:kw:new_image

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual NEW IMAGE ✓ SYNTAX = NEW IMAGE( width, height ) PURPOSE The NEW IMAGE command allows you to define a memory area where you can store an image coming from the screen (with the GET IMAGE command), or from another graphic resource.

ugbasic:user:kw:new_images

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual NEW IMAGES SYNTAX PURPOSE ABBREVIATION NwIms ALIAS FOR NEW ATLAS ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:new_music

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual NEW MUSIC SYNTAX = NEW MUSIC( size ) PURPOSE The NEW MUSIC command allows you to define a memory area where you can store a set of notes for a MUSIC. EXAMPLE track = NEW MUSIC(1260) ABBREVIATION NwMus AVAILABLE ON ANY PROBLEM?

ugbasic:user:kw:new_sequence

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual NEW SEQUENCE SYNTAX = NEW SEQUENCE( strips, frames, width, height ) PURPOSE The NEW SEQUENCE command allows you to define a memory area where you can store a set of images coming from the screen (with the GET IMAGE command), or from another graphic resource.

ugbasic:user:kw:next_animation

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:next_raster

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual NEXT RASTER SYNTAX NEXT RASTER PURPOSE The NEXT RASTER instruction will resume execution of the main program from where it had stopped, before serving the interrupt for the raster. Wait for the next raster. Meanwhile, the execution of the main code will resume where it left off.

ugbasic:user:kw:next_raster_at

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual NEXT RASTER AT SYNTAX NEXT RASTER AT line WITH label NEXT RASTER label AT line PURPOSE The NEXT RASTER AT instruction will resume execution of the main program from where it had stopped, before serving the interrupt for the raster, and will set the next raster line where the main program will be interrupted.

ugbasic:user:kw:nop

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual NOP SYNTAX NOP PURPOSE NOP is short for “No OPeration” and it is a very special instruction: it generates an equivalent instruction in assembly languages that does not perform any useful operation, that is, it does not change the state of the processor or the data in memory.

ugbasic:user:kw:not

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual NOT SYNTAX = NOT x PURPOSE Performs a logical negation on an expression, as a bitwise negation. For comparisons managed as a boolean result (TRUE or FALSE), result is TRUE if expresions evaluate as FALSE. The following table shows how result is determined:

ugbasic:user:kw:nrm

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual NRM ✓ SYNTAX NRM PURPOSE NRM resets the chipset to its default values: the graphic mode is switched off, uppercase and lowercase font is activated, the extended color mode is switched off. EXAMPLE NRM See also the following example files:

ugbasic:user:kw:offset

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:olive_green

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual OLIVE GREEN SYNTAX = OLIVE GREEN PURPOSE This keyword represents the color olive green. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:on...gosub

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ON...GOSUB ✓ SYNTAX ON expression GOSUB label1[, label2 [, ... ] ] PURPOSE This command is used to force a unconditional jump with returning to a pre-defined position when a specific expression is calculated. The choice is done against several positions, and it depends on what value is held by the expression at the time it is spotted.

ugbasic:user:kw:on...goto

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ON...GOTO ✓ SYNTAX ON expression GOTO label1[, label2[, ... ] ] PURPOSE This command is used to force a unconditional jump to a pre-defined position when a specific expression is calculated. The choice is done against several positions, and it depends on what value is held by the expression at the time it is spotted.

ugbasic:user:kw:on...proc

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ON...PROC ✓ SYNTAX ON expression PROC name1[, name2 [, ... ] ] PURPOSE This command is used to force a call to subroutine when a specific expression is calculated. The choice is done against several positions, and it depends on what value is held by the expression at the time it is spotted.

ugbasic:user:kw:on_scroll...call

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ON SCROLL...CALL SYNTAX ON SCROLL UP ROW CALL label ON SCROLL DOWN ROW CALL label ON SCROLL LEFT COLUMN CALL label ON SCROLL RIGHT COLUMN CALL label PURPOSE This command is used to force a procedure call when the screen is scrolled down by an entire row or column.

ugbasic:user:kw:on_scroll...gosub

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ON SCROLL...GOSUB SYNTAX ON SCROLL UP ROW GOSUB label ON SCROLL DOWN ROW GOSUB label ON SCROLL LEFT COLUMN GOSUB label ON SCROLL RIGHT COLUMN GOSUB label PURPOSE This command is used to force a unconditional jump with returning to a pre-defined position when the screen is scrolled down by an entire row or column.

ugbasic:user:kw:on_scroll..call

Anonymous (anonymous@undisclosed.example.com) — 2023-10-11T19:38:37+00:00

ugBASIC User Manual ON SCROLL..CALL SYNTAX ON SCROLL {UP ROW|DOWN ROW|LEFT COLUMN|RIGHT COLUMN} CALL [label] PURPOSE This command is used to force a procedure call when the screen is scrolled down by an entire row or column. EXAMPLE ON SCROLL UP ROW CALL scrolledAway

ugbasic:user:kw:on_scroll..gosub

Anonymous (anonymous@undisclosed.example.com) — 2023-10-11T19:38:37+00:00

ugBASIC User Manual ON SCROLL..GOSUB SYNTAX ON SCROLL {UP ROW|DOWN ROW|LEFT COLUMN|RIGHT COLUMN} GOSUB [label] PURPOSE This command is used to force a unconditional jump with returning to a pre-defined position when the screen is scrolled down by an entire row or column.

ugbasic:user:kw:open_port

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:option_explicit

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual OPTION EXPLICIT SYNTAX OPTION EXPLICT [ON] OPTION EXPLICT OFF PURPOSE When OPTION EXPLICT or OPTION EXPLICIT ON appears in a source file, the programmer must explicitly declare all variables by using the VAR or DIM statements.

ugbasic:user:kw:or

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual OR SYNTAX = x OR y PURPOSE Performs a logical disjunction on two expressions, as a bitwise disjunction. For comparisons managed as a boolean result (TRUE or FALSE), result is TRUE if just one expresions evaluate to TRUE. The following table shows how result is determined:

ugbasic:user:kw:orange

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual ORANGE ✓ SYNTAX = ORANGE PURPOSE This keyword represents the color orange. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space, usually (161, 104, 60)

ugbasic:user:kw:origin

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ORIGIN SYNTAX ORIGIN x, y UP ORIGIN x, y [DOWN] PURPOSE The ORIGIN command can be used to set the origin of the cartesian axes with respect to which drawing instructions will operate. The command accepts the coordinates

ugbasic:user:kw:out

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual OUT SYNTAX OUT port, value PURPOSE The OUT command is a statement that allows your program to interact directly with your computer's hardware, specifically its input/output (I/O) ports. This command is especially useful in contexts where you want to control external devices connected to your computer, such as printers, sound cards, or data acquisition devices.

ugbasic:user:kw:paint

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PAINT SYNTAX PAINT (x,y)[, c[, b]] PAINT x, y, fq PURPOSE The PAINT command is used in high resolution graphics modes, to fill a shape with a specified colour. The x,y are the coordinates of the point where the painting is to start.

ugbasic:user:kw:palette

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PALETTE SYNTAX PALETTE c0[,c1[,c2[,...]]] PURPOSE The PALETTE command allows you to define and modify the range of colors that can be used to draw on the screen. You can give a number for each element of the palette, sequentially. Thenumber is then used to refer to the specific color when drawing shapes or objects. Thanks to RGB function you can change the red, green and blue value of each color in the palette, allowing you to create custom color combinations, provid…

ugbasic:user:kw:paper

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T09:39:04+00:00

ugBASIC User Manual PAPER SYNTAX PAPER expression PURPOSE This command allow to select a background colour on which your text is to be printed. The command is followed by a colour index number between 0 and PAPER COLORS, depending on the graphics mode in use, in exactly the same way as

ugbasic:user:kw:param

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PARAM ✓ SYNTAX = PARAM(name) = PARAM$(name) PURPOSE The PARAM function takes the result of an expression in an END PROC / END PROCEDURE statement (or from a RETURN statement), and returns it. If the variable you are interested in is a string variable, the

ugbasic:user:kw:pause

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:pcls

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PCLS SYNTAX PURPOSE ABBREVIATION Pc ALIAS FOR CLS ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY

ugbasic:user:kw:peach

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual PEACH SYNTAX = PEACH PURPOSE This keyword represents the color peach. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:peek

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PEEK SYNTAX = PEEK( address ) PURPOSE PEEK is a command that allows you to “peek” into your computer's memory. In practice, it allows you to read the value stored in a specific memory cell. When using PEEK, you give the command the memory

ugbasic:user:kw:peek_message

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PEEK MESSAGE SYNTAX [DOJO] PEEK [MESSAGE]( port[, channel] ) PURPOSE The PEEK MESSAGE statement lets you know whether or not a message is present on a given port (and channel). If it is present, it returns TRUE, otherwise it returns

ugbasic:user:kw:peekd

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PEEKD SYNTAX = PEEKD( address ) PURPOSE PEEKD is a command that allows you to “peek” into your computer's memory. In practice, it allows you to read the value stored in a specific memory cell. When using PEEKD, you give the command the memory

ugbasic:user:kw:peekw

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PEEKW SYNTAX = PEEKW( address ) PURPOSE PEEKW is a command that allows you to “peek” into your computer's memory. In practice, it allows you to read the value stored in a specific memory cell. When using PEEKW, you give the command the memory

ugbasic:user:kw:pen

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T09:39:04+00:00

ugBASIC User Manual PEN SYNTAX PEN color PURPOSE The PEN command define the color that will be used to draw lines, shapes, or write text on the screen. In practice, it is like choosing the color of a pen or marker before you start drawing. Depending on the hardware capabilities of the computer, the range of colors available could be limited or very large. Some systems used predefined color palettes, while others allowed you to define your own colors.

ugbasic:user:kw:percentpercent

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual %% SYNTAX = %%(expression) PURPOSE EXAMPLE x = %%( 42 ) PRINT %%( y ) AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502) * Commodore 128 (Zilog Z80) * Commodore 64 * Commodore 64+REU

ugbasic:user:kw:pick

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PICK SYNTAX = PICK( string, offset ) PURPOSE The PICK function allows you to obtain the ASCII code of any character present in a string, provided that the offset within the string is provided. EXAMPLE PRINT PICK( "TEST", 2 )

ugbasic:user:kw:ping

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PING SYNTAX [DOJO] PING[ ( [param1 [,param2] ] ) ] PURPOSE The PING instruction allows you to check whether the server is active and whether communication is occurring correctly. It can be invoked without parameters, to check whether the connection is working, or with one or two parameters, to check whether the connection does not compromise the data transmitted. To check this, you need to know that the two parameters, if provided, will be used to compose the respo…

ugbasic:user:kw:pink

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual PINK SYNTAX = PINK PURPOSE This keyword represents the color pink. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:place

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PLACE SYNTAX = PLACE( text, searched [, start] ) PURPOSE EXAMPLE x = PLACE( "ugBASIC", "A" ) x = PLACE( "ugBASIC", "A", 2 ) ABBREVIATION Pla AVAILABLE ON ALIAS FOR INSTR ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:play

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PLAY SYNTAX PURPOSE ABBREVIATION Py ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY index

ugbasic:user:kw:play_off

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PLAY OFF SYNTAX PLAY OFF [ON #channels] PURPOSE This command allows you to stop the play on all channels or specific channels. EXAMPLE PLAY OFF PLAY OFF ON #%001 ABBREVIATION PyOf AVAILABLE ON * * Commodore 128 (MOS 8502)

ugbasic:user:kw:plot

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PLOT ✓ SYNTAX PLOT [x], [y][, color] PURPOSE The PLOT command allows you to draw individual points on the screen, laying the foundation for creating more complex shapes such as lines or rectangles. The origin (0,0) is usually located in the upper left corner of the screen, but can be changed using

ugbasic:user:kw:plotr

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:pmode

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PMODE SYNTAX PMODE mode, startpage PURPOSE The instruction PMODE allow to select the mode and startpage, using the Dragon BASIC syntax. The mode is a number from 0 to 4, and startpage is the page in video RAM you wish to start writing to. Note that

ugbasic:user:kw:point

Anonymous (anonymous@undisclosed.example.com) — 2023-10-11T20:25:08+00:00

ugBASIC User Manual POINT SYNTAX PURPOSE ABBREVIATION Pt ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY index

ugbasic:user:kw:point_at

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual POINT AT ✓ SYNTAX POINT AT ( [x], [y] ) POINT AT(#x, #y) POINT AT(x, y) PURPOSE The POINT AT instruction allows you to draw a point on the screen, at the (x, y) coordinate. The color is the default color, the one set with the last

ugbasic:user:kw:poke

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual POKE SYNTAX POKE address, value PURPOSE The POKE is the write equivalent of the PEEK command, meaning it allows you to modify the contents of a specific memory cell. Essentially, POKE allows you to “write” a numeric value to a particular location in your computer's memory.

ugbasic:user:kw:poked

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual POKED SYNTAX POKED address, value PURPOSE The POKED is the write equivalent of the PEEKD command, meaning it allows you to modify the contents of four memory cells. Essentially, POKED allows you to “write” a numeric value to a particular location in your computer's memory.

ugbasic:user:kw:pokew

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual POKEW SYNTAX POKEW address, value PURPOSE The POKEW is the write equivalent of the PEEKW command, meaning it allows you to modify the contents of two memory cells. Essentially, POKEW allows you to “write” a numeric value to a particular location in your computer's memory.

ugbasic:user:kw:polyline

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual POLYLINE SYNTAX POLYLINE [[x1],[y1]] TO [x2],[y2] [TO [x3],[y3] [TO [x4],[y4]]]... PURPOSE The POLYLINE command allows you to draw a certain number of concatenated lines. EXAMPLE POLYLINE 10,10 TO 20,10 TO 20,20 TO 10,20 TO 10,10

ugbasic:user:kw:pop

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual POP ✓ SYNTAX POP PURPOSE Remove the caller address from GOSUB call. So you can do a GOTO instead of RETURN. EXAMPLE POP See also the following example files: * control_popping_01.bas ABBREVIATION Pp AVAILABLE ON * * Atari (400/800)

ugbasic:user:kw:pop_proc

Anonymous (anonymous@undisclosed.example.com) — 2024-10-20T18:00:19+00:00

ugBASIC User Manual POP PROC ✓ SYNTAX POP PROC PURPOSE This keyword will exit from a procedure. EXAMPLE POP PROC See also the following example files: * procedures_jumping_02.bas ABBREVIATION PpPrb AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502)

ugbasic:user:kw:pop_procedure

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual POP PROCEDURE ✓ SYNTAX POP PROCEDURE PURPOSE EXAMPLE POP PROCEDURE See also the following example files: * procedures_jumping_02.bas ABBREVIATION PpP1 AVAILABLE ON ALIAS FOR EXIT PROCEDURE EXIT PROC ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:port

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:pow

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual POW ✓ SYNTAX = POW( base, exponent ) = base ^ exponent PURPOSE The POW instruction is short for “power” and is used to calculate the power of a number. In other words, it allows you to raise a base number to a certain exponent. It multiplies the base by itself a number of times equal to the exponent. For example,

ugbasic:user:kw:print

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PRINT ✓ SYNTAX PRINT [[RAW] expr] [; [[RAW]expr] [; ...] ... ] PRINT [[RAW] expr] [, [[RAW]expr] [, ...] ... ] PRINT @expr, [, [[RAW]expr] [, ...] ... ] PURPOSE The PRINT instruction displays information on the screen, starting from the current cursor position. An item or a list of items can follow the command. If any item is omitted, a blank line is printed. The list of items can consist of any group of strings, variables or constants. Each element in the list m…

ugbasic:user:kw:print_buffer

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PRINT BUFFER ✓ SYNTAX PRINT BUFFER [expression]{;|,[expression]|;[expression]} ... PURPOSE EXAMPLE file := load("example.txt") PRINT BUFFER file See also the following example files: * buffers_print_01.bas ABBREVIATION ?Bf AVAILABLE ON

ugbasic:user:kw:proc

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PROC ✓ SYNTAX PROC name PURPOSE This keyword has multiple meaning. If the identifier that follows this command is not already defined, this can be used to give a label (name) to a part of the program. This makes subprograms independent of their position in the program and makes it easier for the programmer to keep track of things (names are easier to assign to a purpose than line numbers).

ugbasic:user:kw:procedure...end_proc

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PROCEDURE...END PROC ✓ SYNTAX PROCEDURE name[ par1[, par2[, ... ]]] ] ... END PROC[ expression ] PURPOSE This couple of keywords create a procedure by giving it a name. The name is then followed by a list of parameters and the procedure must be ended with an

ugbasic:user:kw:purple

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual PURPLE SYNTAX = PURPLE PURPOSE This keyword represents the color purple. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:put_bitmap

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PUT BITMAP ✓ SYNTAX PUT BITMAP resource [ AT [x],[y] ] [DOUBLE Y] PUT BITMAP resource FRAME f [ AT [x],[y] ] [DOUBLE Y] PUT BITMAP resource STRIP s FRAME f [ AT [x],[y] ] [DOUBLE Y] PURPOSE This function draws the bitmap component of an image at a specific position on the screen. The programmer can draw on the screen a single bitmap (

ugbasic:user:kw:put_image

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PUT IMAGE ✓ SYNTAX PUT IMAGE resource AT [x],[y] PUT IMAGE resource FRAME frame AT [x],[y] PUT IMAGE resource STRIP sequence FRAME frame AT [x],[y] PUT IMAGE resource [ AT [x],[y] ] [fl] PUT IMAGE resource FRAME f [ AT [x],[y] ] [fl] PUT IMAGE resource STRIP s FRAME f [ AT [x],[y] ] [fl] fl: [WITH TRANSPARENCY] [DOUBLE Y] PUT ([x1],[y1])-(x2,y2),resource[,fl2] fl2: PSET|PRESET|AND|OR|NOT

ugbasic:user:kw:put_key

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PUT KEY SYNTAX PUT KEY string PURPOSE The PUT KEY command allows you to simulate pressing a key on your computer keyboard. Basically, you enter a string of characters and ugBASIC will use it as if they were typed one after the other. This can be very useful for automating certain actions, such as automatically entering your password or emulating keystrokes.

ugbasic:user:kw:put_message

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PUT MESSAGE SYNTAX = [DOJO] PUT [MESSAGE]( port[, channel], message ) [DOJO] PUT [MESSAGE] port[, channel], message ) PURPOSE The PUT MESSAGE statement allows you to send a message to the port (and optionally the given channel

ugbasic:user:kw:put_tile

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PUT TILE SYNTAX PURPOSE ABBREVIATION PuTl ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY

ugbasic:user:kw:put_tilemap

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual PUT TILEMAP SYNTAX PUT TILEMAP resource [ LAYER layer ] [ FROM x, y ] PURPOSE The command PUT TILEMAP can be used to draw a map on the screen. Note how the same map draws the same way on different screens. The map is however within the available screen size. If the map is bigger than the screen, the comamnd only draws a part of the map. To scroll the map you can use the

ugbasic:user:kw:radian

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RADIAN SYNTAX RADIAN PURPOSE This command allows you to select the angle mode with trigonometric functions, setting it to radiants. EXAMPLE DEGREE x1 = COS(180) RADIAN x2 = COS(3.1415) PRINT x1;" ";x2 ABBREVIATION

ugbasic:user:kw:random

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RANDOM SYNTAX = RANDOM type PURPOSE This function allows you to calculate a random number, in the range that can be represented by the type of data indicated as a parameter. EXAMPLE randomScore = RANDOM BYTE randomColor = RANDOM COLOR

ugbasic:user:kw:random_height

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RANDOM HEIGHT SYNTAX = RANDOM HEIGHT PURPOSE This instruction allows you to get a random number between 0 and the current height of the screen (intended as SCREEN HEIGHT) minus one. It is particularly useful for positioning pixels or graphic elements, randomly, on the screen.

ugbasic:user:kw:random_width

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RANDOM WIDTH SYNTAX = RANDOM WIDTH PURPOSE This instruction allows you to get a random number between 0 and the current width of the screen (intended as SCREEN WIDTH) minus one. It is particularly useful for positioning pixels or graphic elements, randomly, on the screen.

ugbasic:user:kw:randomize

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RANDOMIZE SYNTAX RANDOMIZE seed PURPOSE Initialize the random seed. EXAMPLE RANDOMIZE ABBREVIATION Rdm AVAILABLE ON * Commodore 128 (MOS 8502) ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:range

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:raster_at

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RASTER AT SYNTAX RASTER AT line WITH label RASTER label AT line PURPOSE The RASTER AT instruction will set the next execution raster line for a raster routine. A raster routine is a small program or sequence of instructions that uses a particular moment in the screen display to be activated. This is when the electron beam (the raster beam) scans the screen, line by line, to draw the image.

ugbasic:user:kw:raster_line

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RASTER LINE SYNTAX = RASTER LINE PURPOSE The RASTER LINE keyword gives the current raster line, or the current vertical position of a raster beam. A raster beam is a beam of electrons or light that systematically scans an area, moving from left to right and top to bottom, like the lines that form an image on a cathode ray tube or CRT television. This movement creates a grid of points of light, called pixels, that together form the complete image.

ugbasic:user:kw:read

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual READ ✓ SYNTAX READ var PURPOSE The READ is used for reading constant values from DATA lines into the given variables. This command is able to read more constants at once with a variable list separated by commas. If using the wrong type of variable (for example read a character string into a numerical variable like float or integer), the variable will be untouched. Such behavior can be prevented by generally using a variable of the same type like the

ugbasic:user:kw:read_end

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual READ END ✓ SYNTAX = READ END PURPOSE The READ END function allows you to know if you have reached the last value to read with the READ command. If the function returns true, this means that the next READ command will ignore the read.

ugbasic:user:kw:ready

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual READY SYNTAX = READY() PURPOSE The READY function lets you know if there is a byte available on DOJO connection. EXAMPLE IF READY( ) THEN PRINT "DOJO data is available" ENDIF ABBREVIATION R#y AVAILABLE ON * Commodore 64

ugbasic:user:kw:rec

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual REC ✓ SYNTAX REC x, y, sa, sb, fq PURPOSE REC draws a rectangle. The location of the top left corner is determined by the first two parameters x and y, the width and height of the rectangle by parameters three and four (

ugbasic:user:kw:receive

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual RECEIVE SYNTAX = RECEIVE() PURPOSE The RECEIVE function waits for a character from DOJO connection. EXAMPLE IF READY( ) THEN PRINT RECEIVE() ENDIF ABBREVIATION Rcv AVAILABLE ON * Commodore 64 * Commodore 64+REU

ugbasic:user:kw:rect

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:red

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual RED ✓ SYNTAX = RED PURPOSE This keyword represents the color red. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space, usually (255,0,0). However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:rem

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual REM SYNTAX REM [comment] ' [comment] PURPOSE In BASIC, the REM keyword (also abbreviated by the single quotation character (')) is used to insert comments into code. A comment is a note or explanation that is added to code to make it easier for the developer to understand, as well as for other programmers who may read it in the future.

ugbasic:user:kw:remember

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual REMEMBER ✓ SYNTAX REMEMBER PURPOSE The REMEMBER command restores the cursor position previously stored by the MEMORIZE command. The REMEMBER command can be executed multiple times, and this will restore the cursor position to the last stored position. Note that the stored position refers to the current console. If there are no consoles defined, one equal to full screen will be defined.

ugbasic:user:kw:repeat...until

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual REPEAT...UNTIL ✓ SYNTAX REPEAT ... UNTIL expression PURPOSE The 'REPEAT...UNTIL command will repeatedly execute a block of code until a certain condition is met. In essence, it creates a loop that continues to repeat until a specific exit condition is met.

ugbasic:user:kw:repeat_..._until

Anonymous (anonymous@undisclosed.example.com) — 2021-04-29T12:08:11+00:00

ugBASIC User Manual REPEAT ... UNTIL SYNTAX * REPEAT ... UNTIL [expression] PURPOSE Implement an conditional loop. EXAMPLE REPEAT ... UNTIL AVAILABLE ON * Commodore 64 * ZX Spectrum 48K SEE ALSO

ugbasic:user:kw:reset

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:resolution

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RESOLUTION SYNTAX RESOLUTION width, height PURPOSE This keyword allows to have a “virtual” resolution. Even when you select a graphical mode with only 160 pixel x 200 pixel, the graphical instructions execute the same thing, the only difference is that the pixels will be proportional to virtual resolution. The choice to add this instruction is guided by mathematical ratio, since

ugbasic:user:kw:respawn

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T12:29:52+00:00

ugBASIC User Manual RESPAWN SYNTAX RESPAWN [name][{[parameter],{[parameter],....}}] PURPOSE This keyword will restart a (finished) (parallel) procedure. EXAMPLE RESPAWN factorialHandle(42) ABBREVIATION Rn AVAILABLE ON * * Atari (400/800)

ugbasic:user:kw:restore

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RESTORE ✓ SYNTAX RESTORE label PURPOSE The RESTORE command is used to reset the data read pointer to the beginning of a list of DATA. Imagine having a cassette tape with numbers on it, and you want to read those numbers one at a time. When you use

ugbasic:user:kw:resume

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:return

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T12:44:26+00:00

ugBASIC User Manual RETURN ✓ SYNTAX RETURN PURPOSE Return from unconditional jump. The execution will continue to the instruction next to the caller's one. EXAMPLE RETURN See also the following example files: * control_returning_01.bas * control_returning_02.bas ABBREVIATION Rt AVAILABLE ON

ugbasic:user:kw:rgb

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RGB ✓ SYNTAX = RGB( red, green, blue ) PURPOSE The RGB function allows you to obtain the equivalent value of a color, given its red, green and blue components. The value of this function, where it is supported by the target, can be used in place of a nominal color. Where it is not defined, it always returns a value of zero, which may (or may not) correspond to a valid color.

ugbasic:user:kw:right

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T12:44:26+00:00

ugBASIC User Manual RIGHT SYNTAX RIGHT( [text], [position] ) = [expression] PURPOSE EXAMPLE RIGHT( "TEST", 2 ) = "AM" ABBREVIATION Rg AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502) * Commodore 128 (Zilog Z80)

ugbasic:user:kw:rightb

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:rightw

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:rnd

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RND ✓ SYNTAX = RND(max) PURPOSE The RND function generates integers at random, between zero and any number specified in brackets (minus one). If your specified number is greater than zero, random numbers will be generated up to that maximum number (minus one).

ugbasic:user:kw:rot

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual ROT ✓ SYNTAX ROT angle[, step] PURPOSE The ROT command is used to set the starting angle and step for subsequent drawing operations with the DRAW command. The angle corresponds to the quadrant of interest, starting towards north (0) with an angle of 0 degree, and then proceeding clockwise: 1 = 45 degrees, 2 = 90 degrees and so on.

ugbasic:user:kw:rotate_vector

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:run

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RUN SYNTAX RUN PURPOSE the RUN command restarts the execution of a program. When the program encounter this command, the computer begins executing from the very firstr instructions in your program, one after the other. EXAMPLE

ugbasic:user:kw:run_parallel

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual RUN PARALLEL SYNTAX RUN PARALLEL PURPOSE This keyword will execute all previously invoked procedures. EXAMPLE RUN PARALLEL ABBREVIATION RuPr AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502)

ugbasic:user:kw:running

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:scale

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:scancode

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SCANCODE SYNTAX = SCANCODE PURPOSE The SCANCODE' (or SCAN CODE) capture a single character typed by the user without having to press enter. In other words, the program is “listening” to the keyboard and, as soon as a key is pressed,

ugbasic:user:kw:screen

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T14:16:54+00:00

ugBASIC User Manual SCREEN ✓ SYNTAX SCREEN #mode SCREEN #type, #colorset ... = SCREEN PURPOSE The SCREEN command allows to select a specific hardware-dependent screen mode. Every target has a specific list of modes. Normally, these modes are selected by describing resolution and color depth. This is another way to select graphical modes.

ugbasic:user:kw:screen_columns

Anonymous (anonymous@undisclosed.example.com) — 2024-12-27T21:19:33+00:00

ugBASIC User Manual SCREEN COLUMNS SYNTAX PURPOSE ABBREVIATION ScCms ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY

ugbasic:user:kw:screen_height

Anonymous (anonymous@undisclosed.example.com) — 2024-05-06T19:46:29+00:00

ugBASIC User Manual SCREEN HEIGHT ✓ SYNTAX = SCREEN HEIGHT PURPOSE This function allows you to obtain the height of the current screen, expressed in pixels. The height depends on the currently selected graphics mode, and can change at runtime.

ugbasic:user:kw:screen_horizontal_scroll

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SCREEN HORIZONTAL SCROLL SYNTAX SCREEN HORIZONTAL SCROLL offset PURPOSE The SCREEN HORIZONTAL SCROLL command is designed to scroll the screen horizontally, but its interpretation and the meaning of the parameter supplied vary significantly depending on the hardware platform on which the program is running. This peculiarity makes it essential to understand the specifics of each system to correctly use this command and achieve the desired effect.

ugbasic:user:kw:screen_off

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SCREEN OFF SYNTAX SCREEN OFF PURPOSE Turn off the screen. EXAMPLE SCREEN OFF ABBREVIATION ScOf AVAILABLE ON * Commodore 128 (MOS 8502) * Commodore 64 * Commodore VIC-20 * Commodore 64+REU * Commodore PLUS/4 *

ugbasic:user:kw:screen_on

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SCREEN ON SYNTAX SCREEN ON PURPOSE Turn on the screen. EXAMPLE SCREEN ON ABBREVIATION ScON AVAILABLE ON * Commodore 128 (MOS 8502) * Commodore 64 * Commodore VIC-20 * Commodore 64+REU * Commodore PLUS/4 * Commodore C16

ugbasic:user:kw:screen_page

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SCREEN PAGE SYNTAX = SCREEN PAGE PURPOSE The semantics of this keyword is different, depending on whether double buffering is enabled or not. If double buffering is enabled, the SCREEN PAGE function allows to know which page the program is on. There are two pages, page 0 (

ugbasic:user:kw:screen_rows

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T12:44:26+00:00

ugBASIC User Manual SCREEN ROWS SYNTAX SCREEN ROWS [integer] SCREEN ROWS [expression] PURPOSE Changes the number of lines that can be displayed. Depending on the hardware, the effect can be different as different are the acceptable values.

ugbasic:user:kw:screen_swap

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SCREEN SWAP SYNTAX PURPOSE ABBREVIATION ScSwp ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY

ugbasic:user:kw:screen_tiles_height

Anonymous (anonymous@undisclosed.example.com) — 2024-05-06T19:46:29+00:00

ugBASIC User Manual SCREEN TILES HEIGHT SYNTAX = SCREEN TILES HEIGHT PURPOSE This function allows you to obtain the height of the current screen, expressed in tiles. A tile is a box of pixels that can be addressed elementary by a specific screen code. Normally, it is used in

ugbasic:user:kw:screen_tiles_width

Anonymous (anonymous@undisclosed.example.com) — 2024-05-06T19:46:29+00:00

ugBASIC User Manual SCREEN TILES WIDTH SYNTAX = SCREEN TILES WIDTH PURPOSE This function allows you to obtain the width of the current screen, expressed in tiles. A tile is a box of pixels that can be addressed elementary by a specific screen code. Normally, it is used in

ugbasic:user:kw:screen_vertical_scroll

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SCREEN VERTICAL SCROLL SYNTAX SCREEN VERTICAL SCROLL [integer] SCREEN VERTICAL SCROLL [expression] PURPOSE Performs an hardware scroll of the screen. The scroll is always in the direction from bottom to up, so with a displacement of 0 the screen is exactly as it would be without scrolling while with the value 7 you would have a scroll of 7 pixels upwards.

ugbasic:user:kw:screen_width

Anonymous (anonymous@undisclosed.example.com) — 2024-05-06T19:46:29+00:00

ugBASIC User Manual SCREEN WIDTH ✓ SYNTAX = SCREEN WIDTH PURPOSE This function allows you to obtain the width of the current screen, expressed in pixels. The width depends on the currently selected graphics mode, and can change at runtime.

ugbasic:user:kw:select_case...case...case_else...endselect

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SELECT CASE...CASE...CASE ELSE...ENDSELECT ✓ SYNTAX SELECT CASE expression CASE value1: ... CASE value2: ... ... [ CASE ELSE ] ... ENDSELECT PURPOSE The SELECT CASE command is part of the

ugbasic:user:kw:send

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual SEND SYNTAX SEND data PURPOSE The SEND function send a character to DOJO connection. EXAMPLE SEND "a" ABBREVIATION Sen AVAILABLE ON * Commodore 64 * Commodore 64+REU * TRS-80 Color Computer 3 * TRS-80 Color Computer

ugbasic:user:kw:separating_instructions

Anonymous (anonymous@undisclosed.example.com) — 2024-10-25T20:30:05+00:00

ugBASIC User Manual separating instructions SYNTAX instruction1 : instruction2 : ... PURPOSE In ugBASIC, the instructions are separated using a colon character (:). Since this character is used also as a suffix for a label, you have to use the

ugbasic:user:kw:sequence_load

Anonymous (anonymous@undisclosed.example.com) — 2024-10-25T19:26:03+00:00

ugBASIC User Manual SEQUENCE LOAD SYNTAX PURPOSE ABBREVIATION SeqLd ALIAS FOR LOAD SEQUENCE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:serial_error

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:serial_read

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:serial_write

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:set_line

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SET LINE SYNTAX SET LINE pattern PURPOSE The SET LINE statement changes the pattern used to draw lines. EXAMPLE SET LINE %1010101010101010 ABBREVIATION SeLn AVAILABLE ON ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:set_tab

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SET TAB ✓ SYNTAX SET TAB expression PURPOSE The SET TAB command specifies the number of characters that the text cursor will move to the right when the next TAB$ is printed. EXAMPLE SET TAB 10 See also the following example files:

ugbasic:user:kw:sgn

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SGN ✓ SYNTAX = SGN(number) PURPOSE The SGN function is a very simple but useful mathematical function. Its main function is to determine the sign of a number. In other words, SGN tells you whether a number is positive, negative, or zero. So, it returns 1 if number is positive, 0 if

ugbasic:user:kw:shared

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SHARED ✓ SYNTAX SHARED var1[, var2[, ...] ] SHARED "string1"[, "string2"[, ...] ] PURPOSE This keyword sets up a list of variables of a procedure that can be accessed from absolutely anywhere in your program. There is a facility of using strings in procedure definitions. As with disc names, the

ugbasic:user:kw:shared_const

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SHARED CONST ✓ SYNTAX [POSITIVE] SHARED CONST identifier = value SHARED CONST identifier IN (min,max) = value SHARED CONST identifier IN "[" min,max) = value SHARED CONST identifier IN (min,max "]" = value SHARED CONST identifier IN "[" min,max "]"" = value

ugbasic:user:kw:shoot

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SHOOT SYNTAX SHOOT {ON #[channel]} PURPOSE This command makes the computer emit an shoot-like sound. It is possible to indicate on which voices the system should emit the sound. If omitted, it will be issued on all. EXAMPLE

ugbasic:user:kw:sin

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SIN ✓ SYNTAX = SIN(angle) PURPOSE This function will calculate the sine value of an angle. The sine of an acute angle are defined in the context of a right triangle: for the specified angle, its sine is the ratio of the length of the side that is opposite that angle to the length of the longest side of the triangle (the hypotenuse), and the cosine is the ratio of the length of the adjacent leg to that of the hypotenuse.

ugbasic:user:kw:size

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SIZE ✓ SYNTAX ... = SIZE(variable) PURPOSE To get the size of a variable you can use the SIZE command. This command will return, in bytes, the size of the memory area used by that variable. It is possible to apply this command to any type of static data, such as

ugbasic:user:kw:sleep

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:slice_image

Anonymous (anonymous@undisclosed.example.com) — 2024-12-27T20:57:22+00:00

ugBASIC User Manual SLICE IMAGE SYNTAX SLICE IMAGE [image] AT [x],[y] PURPOSE EXAMPLE SLICE IMAGE airplane TO plane ABBREVIATION SlCIm AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502) * Commodore 128 (Zilog Z80)

ugbasic:user:kw:sound

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SOUND SYNTAX SOUND f1[,d1][;f1[,d2][;...]] [ON channels] SOUND #[freq] {, #[duration] {ON #[channels]}} SOUND [freq] {, [duration] {ON [channels]}} PURPOSE The SOUND command add a touch of interactivity and liveliness to your programs. Simply put, the

ugbasic:user:kw:sound_off

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SOUND OFF SYNTAX SOUND OFF {ON [channels]} SOUND OFF {ON #channels} PURPOSE The SOUND OFF command can be used to stop play a sound on a channel or on all channels. This command allows you to stop the play on all channels or specific channels.

ugbasic:user:kw:space

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T21:13:38+00:00

ugBASIC User Manual SPACE ✓ SYNTAX = SPACE( [number] ) PURPOSE This function can be used to create a new string filled with the required number of spaces. EXAMPLE x = SPACE( 42 ) See also the following example files: * strings_space_01.bas ABBREVIATION Sp

ugbasic:user:kw:spawn

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SPAWN SYNTAX [HALTED] SPAWN [identifier] PURPOSE This keyword will invoke a (parallel) procedure. The procedure can be invoked in an “halted” state using the keyword HALTED, so that a RESPAWN command must be issued in order to

ugbasic:user:kw:spc

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SPC ✓ SYNTAX PRINT SPC(spaces) PURPOSE The function SPC can be used to set a number of spaces, which are printed onto screen. SPC can be used several times in a sentence. Also note that SPC will not overwrite and erase things already printed on screen, so

ugbasic:user:kw:spen

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:sprite

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T21:13:38+00:00

ugBASIC User Manual SPRITE SYNTAX SPRITE index command1 [command2 [command3 ...]] SPRITE command1 [command2 [command3 ...]] PURPOSE The SPRITE instructions can be used to prefix one or more commands on specific hardware sprites. Commands can be specified, one after the other, after specifying which sprite to refer to. If the sprite number is omitted, it is assumed that the operations will be performed on all hardware sprites.

ugbasic:user:kw:sprite_at

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T18:22:41+00:00

ugBASIC User Manual SPRITE AT SYNTAX SPRITE # [integer] AT ( # [integer], # [integer] ) SPRITE [expression] AT ( [expression], [expression] ) PURPOSE Position a sprite to the (x,y) on the screen. EXAMPLE SPRITE #1 AT ( #42, #42 ) SPRITE starship AT ( starshipX, starshipY )

ugbasic:user:kw:sprite_color

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T18:22:41+00:00

ugBASIC User Manual SPRITE COLOR SYNTAX SPRITE # [integer] COLOR # [integer] SPRITE [expression] COLOR [expression] PURPOSE Change specific color for a given sprite. EXAMPLE SPRITE #1 COLOR #2 SPRITE #1 COLOR YELLOW ABBREVIATION Spr Cr

ugbasic:user:kw:sprite_compress

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T18:22:41+00:00

ugBASIC User Manual SPRITE COMPRESS SYNTAX SPRITE # [integer] COMPRESS HORIZONTAL SPRITE [expression] COMPRESS HORIZONTAL SPRITE # [integer] COMPRESS VERTICAL SPRITE [expression] COMPRESS VERTICAL PURPOSE Compress a given sprite, vertically or horizontally,

ugbasic:user:kw:sprite_data_from

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T18:22:41+00:00

ugBASIC User Manual SPRITE DATA FROM SYNTAX SPRITE # [integer] DATA FROM # [integer] SPRITE [expression] DATA FROM [expression] PURPOSE Set the starting address of the sprite's graphical data. EXAMPLE SPRITE #$1 DATA FROM #$0800 SPRITE starship DATA FROM starshipGraphicalData

ugbasic:user:kw:sprite_disable

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T18:22:41+00:00

ugBASIC User Manual SPRITE DISABLE SYNTAX SPRITE #number DISABLE SPRITE DISABLE SPRITE sprite DISABLE PURPOSE Disable the sprite (by its number). If the number is omitted, all sprites will be disable. EXAMPLE SPRITE #1 DISABLE SPRITE starship DISABLE

ugbasic:user:kw:sprite_enable

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T18:22:41+00:00

ugBASIC User Manual SPRITE ENABLE SYNTAX SPRITE # [integer] ENABLE SPRITE [expression] ENABLE PURPOSE Enable the sprite given (by its number). If the number is omitted, all sprites will be enabled. EXAMPLE SPRITE #1 ENABLE SPRITE starship ENABLE

ugbasic:user:kw:sprite_expand

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T18:22:41+00:00

ugBASIC User Manual SPRITE EXPAND SYNTAX SPRITE # [integer] EXPAND VERTICAL SPRITE [expression] EXPAND VERTICAL SPRITE # [integer] EXPAND HORIZONTAL SPRITE [expression] EXPAND HORIZONTAL PURPOSE Expand a given sprite, vertically or horizontally,

ugbasic:user:kw:sprite_max_x

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T21:13:38+00:00

ugBASIC User Manual SPRITE MAX X SYNTAX = SPRITE MAX X PURPOSE This constant allows us to know which is the largest abscissa (x) that can assume the horizontal position of a sprite. It may or may not coincide with the horizontal resolution of the screen, in the sense that some graphics chipsets can move sprites far beyond what is representable (example: border management on the VIC-II).

ugbasic:user:kw:sprite_max_y

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T21:13:38+00:00

ugBASIC User Manual SPRITE MAX Y SYNTAX = SPRITE MAX Y PURPOSE This constant allows us to know which is the largest ordinate (y) that can assume the vertical position of a sprite. It may or may not coincide with the horizontal resolution of the screen, in the sense that some graphics chipsets can move sprites far beyond what is representable (example: border management on the VIC-II).

ugbasic:user:kw:sprite_min_x

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T21:13:38+00:00

ugBASIC User Manual SPRITE MIN X SYNTAX = SPRITE MIN X PURPOSE This constant allows us to know which is the smallest abscissa (x) that can assume the horizontal position of a sprite. It may or may not coincide with zero of the screen, in the sense that some graphics chipsets can move sprites far beyond what is representable (example: border management on the VIC-II).

ugbasic:user:kw:sprite_min_y

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T21:13:38+00:00

ugBASIC User Manual SPRITE MIN Y SYNTAX = SPRITE MIN Y PURPOSE This constant allows us to know which is the smallest ordinate (y) that can assume the vertical position of a sprite. It may or may not coincide with zero of the screen, in the sense that some graphics chipsets can move sprites far beyond what is representable (example: border management on the VIC-II).

ugbasic:user:kw:sprite_monocolor

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T18:22:41+00:00

ugBASIC User Manual SPRITE MONOCOLOR SYNTAX SPRITE # [integer] MONOCOLOR SPRITE [expression] MONOCOLOR PURPOSE Disable multicolor for sprite. EXAMPLE SPRITE #1 MONOCOLOR SPRITE starship MONOCOLOR ABBREVIATION Spr Mc AVAILABLE ON * Olivetti Prodest PC128

ugbasic:user:kw:sprite_multicolor

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T18:22:41+00:00

ugBASIC User Manual SPRITE MULTICOLOR SYNTAX SPRITE # [integer] MULTICOLOR SPRITE [expression] MULTICOLOR PURPOSE Enable multicolor for sprite. EXAMPLE SPRITE #1 MULTICOLOR SPRITE starship MULTICOLOR ABBREVIATION Spr Mcs AVAILABLE ON

ugbasic:user:kw:sprite_off

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T18:22:41+00:00

ugBASIC User Manual SPRITE OFF SYNTAX SPRITE #number OFF SPRITE OFF SPRITE sprite OFF PURPOSE Disable the sprite, alias di SPRITE DISABLE. EXAMPLE SPRITE #1 OFF SPRITE starship OFF ABBREVIATION Spr Of AVAILABLE ON * Commodore 128 (MOS 8502)

ugbasic:user:kw:sprite_on

Anonymous (anonymous@undisclosed.example.com) — 2024-09-29T18:22:41+00:00

ugBASIC User Manual SPRITE ON SYNTAX SPRITE # [integer] ON SPRITE [expression] ON PURPOSE Enable the sprite, alias of SPRITE ENABLE. EXAMPLE SPRITE #1 ON SPRITE starship ON ABBREVIATION Spr ON AVAILABLE ON * Commodore 128 (MOS 8502)

ugbasic:user:kw:sqr

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SQR ✓ SYNTAX = SQR(expression) PURPOSE The SQR command (short for “square root”) is a mathematical function that is used to calculate the square root of a number. In other words, given a number x, the command SQR(x) returns the number that, when multiplied by itself, gives the result

ugbasic:user:kw:stop_animation

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:stop_movement

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:storage...end_storage

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual STORAGE...END STORAGE ✓ SYNTAX STORAGE name [AS filename] .. END STORAGE STORAGE name [AS filename] .. END STORAGE PURPOSE EXAMPLE BEGIN STORAGE "dischetto" ... ENDSTORAGE See also the following example files: *

ugbasic:user:kw:storage...endstorage

Anonymous (anonymous@undisclosed.example.com) — 2024-11-15T12:57:34+00:00

ugBASIC User Manual STORAGE...ENDSTORAGE SYNTAX PURPOSE To conclude the definition of a mass memory, the ENDSTORAGE command can be used. ABBREVIATION StrEns ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:store

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:str

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual STR ✓ SYNTAX = STR(number) PURPOSE This function converts numbers into strings. This can be used to overcome some limitations posed by functions which does not accept numbers as parameters, but will work happily with parameters in the form of strings. Also, when string adding is performed, all operand must be strings, so this function is really useful.

ugbasic:user:kw:string

Anonymous (anonymous@undisclosed.example.com) — 2023-10-09T20:30:14+00:00

ugBASIC User Manual STRING ✓ SYNTAX = STRING( text, repetitions ) PURPOSE This function can be used to create a new string filled with the required number of copies of the first character from an existing string. EXAMPLE x = STRING( "A", 42 )

ugbasic:user:kw:strip_load

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual STRIP LOAD SYNTAX PURPOSE ABBREVIATION StiLd ALIAS FOR LOAD SEQUENCE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:strptr

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual STRPTR SYNTAX = STRPTR(var) PURPOSE This function allows you to retrieves the address in memory where the actual text of a given string is located. EXAMPLE address = STRPTR(x) ABBREVIATION Spt AVAILABLE ON ANY PROBLEM?

ugbasic:user:kw:success

Anonymous (anonymous@undisclosed.example.com) — 2025-02-14T19:36:58+00:00

ugBASIC User Manual SUCCESS SYNTAX = SUCCESS( ) PURPOSE The SUCCESS function will return TRUE if the last DOJO command has been successfully executed. EXAMPLE IF SUCCESS( ) THEN PRINT "ok!" ABBREVIATION Su AVAILABLE ON * Commodore 64 *

ugbasic:user:kw:sum

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:suspend

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:swap

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SWAP SYNTAX SWAP var1, var2 PURPOSE The SWAP command is used to swap the values of two variables. In practice, the contents of the first variable are assigned to the second and vice versa, in a single operation. The SWAP command makes code more concise and readable by avoiding the use of a temporary variable for swapping. Since swapping elements is a fundamental operation in many sorting algorithms, such as bubble sort, it is important that it is an efficient opera…

ugbasic:user:kw:sys

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual SYS ✓ SYNTAX SYS address _ [ WITH REG(r1)=v1[, REG(r2)=v2 [, ... ] ] ] _ [ RETURN x1=REG(r1)[, x2=REG(r2)[, ... ] ] ] _ [ ON target1[, target2[, ... ] ] ] PURPOSE This command allows you to start the execution of a subroutine, written directly in machine language, starting from the indicated address. It must be noted that this jump is intended as a return: any assembly instruction that returns from execution will continue the execution of the …

ugbasic:user:kw:tab

Anonymous (anonymous@undisclosed.example.com) — 2024-10-17T19:21:53+00:00

ugBASIC User Manual TAB ✓ SYNTAX = TAB$ PURPOSE The TAB$ function returns a special control character called TAB, which carries the ASCII code of 9. When this character is printed, the text cursor is automatically moved to the next tabulated column setting (tab) to the right. The default setting for this is four characters, which can be changed using

ugbasic:user:kw:tabdollar

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TAB$ ✓ SYNTAX = TAB$ PURPOSE The TAB$ function returns a special control character called TAB, which carries the ASCII code of 9. When this character is printed, the text cursor is automatically moved to the next tabulated column setting (tab) to the right. The default setting for this is four characters, which can be changed using

ugbasic:user:kw:tan

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T21:53:26+00:00

ugBASIC User Manual TAN ✓ SYNTAX = TAN([angle]) PURPOSE This function will calculate the tangent value of an angle. It is the ratio of the opposite side and the adjacent side of the angle in consideration in a right-angled triangle. EXAMPLE

ugbasic:user:kw:text

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TEXT SYNTAX TEXT [AT] x, y, string PURPOSE The TEXT command allows you to write text at a certain position on the screen. ABBREVIATION Tx SEE ALSO LOCATE PRINT ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:text_disable

Anonymous (anonymous@undisclosed.example.com) — 2021-05-30T00:17:40+00:00

ugBASIC User Manual TEXT DISABLE SYNTAX TEXT ENABLE PURPOSE Disable the text mode. EXAMPLE TEXT ENABLE AVAILABLE ON * Commodore 64 POWERED BY index

ugbasic:user:kw:text_enable

Anonymous (anonymous@undisclosed.example.com) — 2021-05-30T00:17:40+00:00

ugBASIC User Manual TEXT ENABLE SYNTAX TEXT ENABLE PURPOSE Enable the text mode. EXAMPLE TEXT ENABLE AVAILABLE ON * Commodore 64 POWERED BY index

ugbasic:user:kw:textaddress

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TEXTADDRESS SYNTAX = TEXTADDRESS TEXTADDRESS = ... PURPOSE This is a variable (16 bit) that contains the actual address of the textmap, the video memory containing the various chars that makes a text on the screen in text mode. It could refer to a certain position in RAM memory or in a separate video memory. It depends on the computer you are programming.

ugbasic:user:kw:textmap_at

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TEXTMAP AT SYNTAX TEXTMAP AT [expression] PURPOSE EXAMPLE TEXTMAP AT newTextmapAddress ABBREVIATION TxmAt AVAILABLE ON * Dragon 32 (6809) * Thomson MO5 * Commodore 64 * Commodore VIC-20 * Dragon 32 (6309) * Dragon 64 (6809)

ugbasic:user:kw:ti

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TI SYNTAX PURPOSE ALIAS FOR TIMER ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY index

ugbasic:user:kw:tick_per_second

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TICK PER SECOND SYNTAX = TICK PER SECOND PURPOSE This constant holds the number of ticks that occur each second. ABBREVIATION TkPexSec ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:ticks_per_second

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TICKS PER SECOND ✓ SYNTAX = TICKS PER SECOND PURPOSE The TICKS PER SECOND returns the number of ticks per second that can be detected using the TIMER keyword. Note that this value is calculated dynamically at the start of the program, and is therefore no longer modified. However, because there may be versions of the same hardware running at different frequencies, the value cannot be used as a compile-time constant.

ugbasic:user:kw:tile_at

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILE AT SYNTAX = TILE AT([x],[y]) PURPOSE This function allows you to know which is the tile drawn at a certain position on the tilemap. Since it is possible to draw both single TILE and TILES, the information on the drawn tile is not, automatically, the identifier of a TILES but it is the single tile of which it is formed. To know if the tile belongs to a group of tiles it is necessary to use the

ugbasic:user:kw:tile_belong_to

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILE BELONG TO SYNTAX = TILE tile BELONG TO tiles PURPOSE The TILE ... BELONG TO ... command allows you to check if a certain TILE belongs to the set of tiles that make up a TILES. In general, TILES are made up of multiple simple tiles and, when drawn, actually occupy multiple tiles. This command allows you to make distinctions.

ugbasic:user:kw:tile_class

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILE CLASS ✓ SYNTAX = TILE CLASS(tileset, id) PURPOSE This function allows you to know the class to which a certain tile belongs. Note that this information is available only at the time of compilation: therefore, the parameter with the tile identifier must be a constant.

ugbasic:user:kw:tile_first

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILE FIRST SYNTAX = TILE FIRST([tiles]) PURPOSE This function allows you to obtain the first TILE of a given set of TILES EXAMPLE firstTile = TILE FIRST( LOAD TILES("starship.png") ) ABBREVIATION TlFST AVAILABLE ON *

ugbasic:user:kw:tile_height

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILE HEIGHT SYNTAX = TILE HEIGHT([tile]) = TILE HEIGHT([tileset]) PURPOSE This function allows you to obtain the height of a given TILE or a given set of TILES. The width is expressed in tiles. If the parameter is a ``TILESET``, this is the height of a single tile.

ugbasic:user:kw:tile_id

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILE ID ✓ SYNTAX = TILE ID(tileset, name) PURPOSE This function allows you retrieve the (numeric) identification, given the symbolic name of the tile. Note that this information is available only at the time of compilation: therefore, the parameter with the tile identifier must be a constant.

ugbasic:user:kw:tile_load

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILE LOAD SYNTAX PURPOSE ABBREVIATION TlLd ALIAS FOR LOAD TILE ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:tile_probability

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILE PROBABILITY ✓ SYNTAX = TILE PROBABILITY( tileset, id ) PURPOSE This function allows you to know the probability to which a certain tile will be produced. Note that this information is available only at the time of compilation: therefore, the parameter with the tile identifier must be a constant.

ugbasic:user:kw:tile_width

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILE WIDTH SYNTAX = TILE WIDTH([tile]) = TILE WIDTH([tileset]) PURPOSE This function allows you to obtain the width of a given TILE or a given set of TILES. The width is expressed in tiles. If the parameter is a ``TILESET``, this is the width of a single tile.

ugbasic:user:kw:tilemap

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T22:12:14+00:00

ugBASIC User Manual TILEMAP ✓ SYNTAX ... = TILEMAP PURPOSE This is the bitmask used to select the TILE mode. EXAMPLE IF SCREEN IS TILEMAP THEN: PRINT "tilemap is native!": ENDIF See also the following example files: * screens_bitmap_01.bas ABBREVIATION Tm

ugbasic:user:kw:tilemap_at

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILEMAP AT SYNTAX = TILEMAP [LAYER layer] map AT([x],[y]) PURPOSE This function allows to know which is the tile present in a tilemap, given the coordinates of the tile itself. If the tilemap has more than one layer, the first layer will be returned. If you need to retrieve the tile of a different level, you have to indicate the layer with the

ugbasic:user:kw:tilemap_disable

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILEMAP DISABLE SYNTAX TILEMAP DISABLE PURPOSE Disable the tilemap mode. EXAMPLE TILEMAP DISABLE ABBREVIATION TmDx AVAILABLE ON ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:tilemap_enable

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILEMAP ENABLE SYNTAX TILEMAP ENABLE PURPOSE Enable the tilemap mode. EXAMPLE TILEMAP ENABLE ABBREVIATION TmEn AVAILABLE ON * * Commodore 128 (Zilog Z80) * Commodore 128 (MOS 8502) * SEGA SG-1000 * ZX Spectrum 48

ugbasic:user:kw:tilemap_height

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILEMAP HEIGHT SYNTAX = TILEMAP HEIGHT(tilemap) PURPOSE This function allows you to obtain the height of a given TILEMAP. The height is expressed in tiles EXAMPLE starshipHeight = TILEMAP HEIGHT( tilemap ) ABBREVIATION TmHg

ugbasic:user:kw:tilemap_index

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILEMAP INDEX SYNTAX = TILEMAP INDEX( column, row [, layer] ) PURPOSE The TILEMAP INDEX allows you to know the identifier of the tile located in correspondence with the given set of coordinates. In particular, given a tile map as parameter, you can know what the tile is at the x, y position and, if present and given, at the given layer.

ugbasic:user:kw:tilemap_tile_at

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILEMAP TILE AT SYNTAX = TILEMAP TILE AT( column, row [, layer] ) PURPOSE EXAMPLE index = TILEMAP TILE AT( 0, 0 ) index = TILEMAP TILE AT( 0, 0, 1 ) ABBREVIATION TmTlAt AVAILABLE ON * * Atari (400/800) * Atari XL/XE

ugbasic:user:kw:tilemap_width

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILEMAP WIDTH SYNTAX = TILEMAP WIDTH(tilemap) PURPOSE This function allows you to obtain the width of a given TILEMAP. The width is expressed in tiles EXAMPLE w = TILEMAP WIDTH( tilemap ) ABBREVIATION TmWd AVAILABLE ON

ugbasic:user:kw:tiles_at

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILES AT SYNTAX TILES AT # [integer] TILES AT [expression] PURPOSE Set the starting address, in memory, for the tiles (for textual mode). The input parameter is decoded and declined according to the hardware limits. So it is not said that exactly the given address is set.

ugbasic:user:kw:tiles_height

Anonymous (anonymous@undisclosed.example.com) — 2024-05-06T19:46:29+00:00

ugBASIC User Manual TILES HEIGHT SYNTAX PURPOSE Alias for SCREEN TILES HEIGHT. ABBREVIATION Tls Hg SEE ALSO SCREEN TILES HEIGHT ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:tiles_load

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILES LOAD SYNTAX PURPOSE ABBREVIATION TlsLd ALIAS FOR LOAD TILES FONT LOAD ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:tiles_width

Anonymous (anonymous@undisclosed.example.com) — 2024-05-06T19:46:29+00:00

ugBASIC User Manual TILES WIDTH SYNTAX PURPOSE Alias for SCREEN TILES WIDTH. ABBREVIATION Tls Wd SEE ALSO SCREEN TILES WIDTH ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:tileset_of

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TILESET OF SYNTAX = TILESET OF [tilemap] PURPOSE This command allows you to obtain the TILESET of a given TILEMAP. EXAMPLE ts = TILESET OF map ABBREVIATION TseOF AVAILABLE ON * * Atari (400/800) * Atari XL/XE *

ugbasic:user:kw:timer

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual TIMER ✓ SYNTAX = TIMER TIMER = [50th/60th seconds] PURPOSE This variable represents a “timer”, which is the number of sixtieths / fiftieths of a second that have passed since the machine was turned on. This variable, when used as a value, measures the elapsed time. However, it can be set to an arbitrary value, such as 0, to measure a defined period of time.

ugbasic:user:kw:travel

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:travel_path

Anonymous (anonymous@undisclosed.example.com) — 2024-12-04T09:33:42+00:00

ugBASIC User Manual TRAVEL PATH SYNTAX TRAVEL PATH path TO x, y PURPOSE ABBREVIATION TrvPth ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:triangle

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:turquoise

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual TURQUOISE SYNTAX = TURQUOISE PURPOSE This keyword represents the color turquoise. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:type...end_type

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:ubound

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual UBOUND SYNTAX = UBOUND( array [, dimension]) PURPOSE The UBOUND command (short for “upper bound”) is used to determine the highest index of an array. In other words, it tells you how far up the array goes. Imagine you have a box of numbered chocolates.

ugbasic:user:kw:ucase

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual UCASE ✓ SYNTAX = UCASE(text) PURPOSE EXAMPLE x = UCASE( "ugBASIC" ) See also the following example files: * strings_cases_01.bas ABBREVIATION Uca AVAILABLE ON ALIAS FOR UPPER ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:unfreeze

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:upb

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:upper

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual UPPER ✓ SYNTAX = UPPER(text) PURPOSE The UPPER command (short for “Upper Case”) is a function that converts all lowercase letters in a string to uppercase. In other words, it takes any string and returns a new string that is identical to the first, but with all letters in uppercase.

ugbasic:user:kw:upw

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:use_tileset

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual USE TILESET SYNTAX USE TILESET tileset PURPOSE The USE TILESET command allows you to change the current active tileset. EXAMPLE USE TILESET schema1 ABBREVIATION UxTse AVAILABLE ON * Atari (400/800) * VG-5000 ANY PROBLEM?

ugbasic:user:kw:val

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual VAL ✓ SYNTAX = VAL(string) PURPOSE The VAL command is a function that allows you to convert a string that represents a number into a integer numeric value. In other words, it takes a string that contains numbers and returns the corresponding numeric value.

ugbasic:user:kw:var

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual VAR SYNTAX VAR variable [AS datatype] [, variable [AS datatype] [ , variable [AS datatype] ] ] VAR variable [AS datatype] = constant PURPOSE EXAMPLE VAR x = 42 ABBREVIATION Vr AVAILABLE ON * * Atari (400/800) *

ugbasic:user:kw:varbank

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual VARBANK SYNTAX = VARBANK( variable ) PURPOSE Returns the bank assigned for the given variable, -1 if the variable is on resident memory. EXAMPLE DIM x as INTEGER: DIM largeArray( 100, 100 ) AS INTEGER BANKED x = 42 BANK WRITE VARBANK( largeArray ) FROM VARPTR( x ) TO VARBANKPTR( largeArray ) SIZE 2

ugbasic:user:kw:varbankptr

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual VARBANKPTR SYNTAX = VARBANKPTR( variable ) PURPOSE Returns the address assigned for the given variable inside a bank of memory expansion. EXAMPLE DIM x as INTEGER: DIM largeArray( 100, 100 ) AS INTEGER BANKED x = 42 BANK WRITE VARBANK( largeArray ) FROM VARPTR( x ) TO VARBANKPTR( largeArray ) SIZE 2

ugbasic:user:kw:varptr

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual VARPTR SYNTAX = VARPTR(var) PURPOSE The VARPTR command (short for “variable pointer”) is a pretty advanced statement that lets you get the memory address of a variable. Essentially, it tells you “where” in memory the value of a specific variable is stored.

ugbasic:user:kw:vcenter

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:vcentre

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:vhcenter

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:vhcentre

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:violet

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual VIOLET SYNTAX = VIOLET PURPOSE This keyword represents the color violet. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space, usually (204,68,204)

ugbasic:user:kw:volume

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual VOLUME SYNTAX VOLUME #[value] {ON #[channels]} VOLUME [volume] {ON [channels]} PURPOSE This command allows you to change the volume at which the audio is generated. In general, you can change the overall audio, or that of each individual voice.

ugbasic:user:kw:volume_max

Anonymous (anonymous@undisclosed.example.com) — 2024-12-21T11:45:24+00:00

ugBASIC User Manual VOLUME MAX SYNTAX = VOLUME MAX PURPOSE Maximum value usable for audio volume. ABBREVIATION VoMx ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:volume_min

Anonymous (anonymous@undisclosed.example.com) — 2024-12-21T11:45:24+00:00

ugBASIC User Manual VOLUME MIN SYNTAX = VOLUME MIN PURPOSE Minimum value usable for audio volume. ABBREVIATION VoMn ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:volume_off

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual VOLUME OFF SYNTAX VOLUME OFF {ON #[channels]} VOLUME OFF {ON [channels]} PURPOSE This command allows you to mute the audio. In general, you can mute the overall audio, or each individual voice. EXAMPLE VOLUME OFF VOLUME OFF ON #%001 VOLUME OFF ON voice1

ugbasic:user:kw:wait

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual WAIT ✓ SYNTAX WAIT cycles [CYCLES] [PARALLEL] WAIT ticks TICK WAIT ticks TICKS WAIT time MILLISECOND WAIT time MILLISECONDS WAIT time MS PURPOSE Pauses execution for a certain period of time. The WAIT statement can be accompanied by a suffix statement, which indicates the unit of measurement of the time to wait. The suffix

ugbasic:user:kw:wait_cycles

Anonymous (anonymous@undisclosed.example.com) — 2021-04-26T09:30:27+00:00

ugBASIC User Manual WAIT CYCLES SYNTAX * WAIT # [integer] CYCLES * WAIT [expression] CYCLES PURPOSE Engages the CPU in a busy wait. EXAMPLE WAIT #42 CYCLES WAIT timing CYCLES AVAILABLE ON * ZX Spectrum 48K * Commodore 64 SEE ALSO

ugbasic:user:kw:wait_fire

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual WAIT FIRE SYNTAX WAIT FIRE [(port)] [RELEASE] PURPOSE This instruction allows you to wait for the pressure of the FIRE key on the joystick. If the port number is not indicated, it means the first available (the one with index 0). If the keyword

ugbasic:user:kw:wait_key

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual WAIT KEY SYNTAX WAIT KEY [RELEASE] PURPOSE This instruction allows you to wait for any key to be pressed key on the keyboard. If the keyword RELEASE is appended, the instruction will wait for the release of the key, as well.

ugbasic:user:kw:wait_key_or_fire

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual WAIT KEY OR FIRE SYNTAX WAIT KEY OR FIRE [([port])] [RELEASE] PURPOSE This instruction allows you to wait for the pressure of the FIRE key on the joystick or any key from keyboard. If the port number is not indicated, it means the first available (the one with index 0). If the keyword

ugbasic:user:kw:wait_parallel

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual WAIT PARALLEL SYNTAX WAIT PARALLEL id PURPOSE The WAIT PARALLEL command allows you to wait for the completion of a previously running mandatory thread. In order for the thread to be considered completed, it must reach the last statement of the parallel procedure, or have executed the

ugbasic:user:kw:wait_until

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual WAIT UNTIL SYNTAX WAIT UNTIL expression PURPOSE The WAIT UNTIL command allows you to suspend the execution of a thread until the indicated condition becomes TRUE. In other words, the expression is evaluated and, if FALSE, the execution will be suspended to send another scheduled thread to execute. If it becomes

ugbasic:user:kw:wait_vbl

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual WAIT VBL SYNTAX WAIT VBL [raster line] PURPOSE The WAIT VBL command pauses program execution until a “vertical blank” is encountered. This is a signal that is triggered at each screen refresh, which usually occurs at 50 Hz in PAL standard and 60 Hz in NTSC standard.

ugbasic:user:kw:wait_while

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual WAIT WHILE SYNTAX WAIT WHILE expression PURPOSE The WAIT WHILE command allows you to suspend the execution of a thread until the indicated condition becomes FALSE. In other words, the expression is evaluated and, if TRUE, the execution will be suspended to send another scheduled thread to execute. If it becomes

ugbasic:user:kw:while...wend

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual WHILE...WEND ✓ SYNTAX WHILE expression ... WEND PURPOSE This instruction define a conditional loop, or a list of statements that will be executed while an expression is true. WHILE acts as the starting position while

ugbasic:user:kw:white

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual WHITE ✓ SYNTAX = WHITE PURPOSE This keyword represents the color white. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space, usually (255,255,255)

ugbasic:user:kw:width

Anonymous (anonymous@undisclosed.example.com) — 2024-05-06T19:46:29+00:00

ugBASIC User Manual WIDTH SYNTAX PURPOSE Alias for SCREEN WIDTH. ABBREVIATION Wd SEE ALSO SCREEN WIDTH ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:writing

Anonymous (anonymous@undisclosed.example.com) — 2024-10-23T22:27:07+00:00

ugBASIC User Manual WRITING SYNTAX WRITE {[mode]},{[parts]} PURPOSE The WRITING command is used to control how the text is presented on the screen. The first value selects one of five writing modes: * REPLACE (0) – new text replaces any existing screen data; *

ugbasic:user:kw:x

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:x_curs

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual X CURS SYNTAX = X CURS PURPOSE ABBREVIATION XCURS ALIAS FOR XCURS ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:x_graphic

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual X GRAPHIC ✓ SYNTAX = X GRAPHIC(x) PURPOSE This function performs the conversion of text abscissa to graphic abscissa, and can be used to position text over an area of graphics on the screen. EXAMPLE x = X GRAPHIC(10) See also the following example files:

ugbasic:user:kw:x_pen

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:x_text

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual X TEXT ✓ SYNTAX = X TEXT(x) PURPOSE This function performs the conversion of graphic abscissa to text abscissa, and can be used to position an area of graphics on the screen, over the text. EXAMPLE x = X TEXT(100) See also the following example files:

ugbasic:user:kw:xcurs

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual XCURS SYNTAX = XCURS PURPOSE Returns the X value of the cursor position. ABBREVIATION Xcs ALIAS FOR X CURS ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:xgr

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual XGR SYNTAX = XGR PURPOSE Returns the X value of the last graphical position. ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:xgraphic

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual XGRAPHIC SYNTAX PURPOSE ABBREVIATION Xg ALIAS FOR X GRAPHIC ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:xor

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual XOR SYNTAX = x OR y PURPOSE Performs a logical exclusion on two expressions, as a bitwise exclusion. For comparisons managed as a boolean result (TRUE or FALSE), result is TRUE if both expresions evaluate differently each other. The following table shows how result is determined:

ugbasic:user:kw:xpen

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual XPEN SYNTAX = XPEN( ) PURPOSE The XPEN command is used to query the hardware and get the horizontal position (X coordinate) of a light pen attached to the system, if the hardware supports such a device. When the XPEN' command is executed within a program, the underlying hardware attempts to read the X coordinate value detected by the light pen. This value represents the horizontal position of where the pen is currently pointing on the screen or a touch-sensitive su…

ugbasic:user:kw:xtext

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual XTEXT SYNTAX PURPOSE ABBREVIATION Xt ALIAS FOR X TEXT ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY

ugbasic:user:kw:y

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:y_curs

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual Y CURS SYNTAX = Y CURS PURPOSE ABBREVIATION YCURS ALIAS FOR YCURS ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:y_graphic

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual Y GRAPHIC ✓ SYNTAX = Y GRAPHIC(y) PURPOSE This function performs the conversion of text ordinate to graphic ordinate, and can be used to position text over an area of graphics on the screen. EXAMPLE x = Y GRAPHIC(10) See also the following example files:

ugbasic:user:kw:y_pen

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugbasic:user:kw:y_text

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual Y TEXT ✓ SYNTAX = Y TEXT(y) PURPOSE This function performs the conversion of graphic ordinate to text ordinate, and it can be used to position an area of graphics on the screen, over the text. EXAMPLE x = Y TEXT(100) See also the following example files:

ugbasic:user:kw:ycurs

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual YCURS SYNTAX = YCURS PURPOSE Returns the Y value of the cursor position. ABBREVIATION Ycs ALIAS FOR Y CURS ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please

ugbasic:user:kw:yellow

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual YELLOW ✓ SYNTAX = YELLOW PURPOSE This keyword represents the color yellow. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space, usually (238,238,119)

ugbasic:user:kw:yellow_green

Anonymous (anonymous@undisclosed.example.com) — 2024-10-18T16:28:05+00:00

ugBASIC User Manual YELLOW GREEN SYNTAX = YELLOW GREEN PURPOSE This keyword represents the color yellow green. Depending on the methodology and technique, as well as the available hardware, it can correspond to a specific color in the RGB space. However, not all computers have this color. In which case, it is approximated by the closest color available, which is usually also used in decoding images to identify the color to use.

ugbasic:user:kw:ygr

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual YGR SYNTAX = YGR PURPOSE Returns the Y value of the last graphical position. ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:ygraphic

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual YGRAPHIC SYNTAX PURPOSE ABBREVIATION Yg ALIAS FOR Y GRAPHIC ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you!

ugbasic:user:kw:yield

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual YIELD SYNTAX YIELD PURPOSE This keyword will suspend the current thread, waiting for the next slice of time. EXAMPLE YIELD ABBREVIATION Yi AVAILABLE ON * * Atari (400/800) * Atari XL/XE * Commodore 128 (MOS 8502)

ugbasic:user:kw:ypen

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual YPEN SYNTAX = YPEN( ) PURPOSE The YPEN command is used to query the hardware and get the vertical position (Y coordinate) of a light pen attached to the system, if the hardware supports such a device. When the YPEN' command is executed within a program, the underlying hardware attempts to read the Y coordinate value detected by the light pen. This value represents the vertical position of where the pen is currently pointing on the screen or a touch-sensitive surfac…

ugbasic:user:kw:ytext

Anonymous (anonymous@undisclosed.example.com) — 2025-12-13T12:33:09+00:00

ugBASIC User Manual YTEXT SYNTAX PURPOSE ABBREVIATION Yt ALIAS FOR Y TEXT ANY PROBLEM? If you have encountered a problem using this command, if you think there is a bug or the explanation is unclear, please open an issue for this keyword on GitHub. Thank you! POWERED BY