{{htmlmetatags>metatag-robots=()
metatag-title=(  | ugBASIC User Manual)
metatag-keywords=(ugBASIC,Commodore 64,Commodore PLUS/4,ZX Spectrum)
metatag-description=(An isomorphic language for retrocomputers)
metatag-media-og:image=(:ugbasic:logo-ugbasic-fb.png)
metatag-og:title=(  | ugBASIC User Manual) 
metatag-og:description=(An isomorphic language for retrocomputers)
}}

====== ugBASIC User Manual ======

=====   =====

==== PURPOSE ====


==== SOURCE CODE ====
   OPTION TYPE UNSIGNED
   OPTION DEFAULT TYPE BYTE
   
   DIM actualAddress AS WORD = &H3008 
   DIM startingAddress AS WORD = &H3000
   DIM increment AS BYTE = 0
   
   SCREEN ON
   
   PROCEDURE drawHi
   
   	SHARED startingAddress
   
   	DIM filled AS BYTE = &HFF
   	DIM middle AS BYTE = &H18
   	DIM none AS BYTE = &H00
   	
   	' H (5x8 pixel)
   
   	POKE startingAddress, filled
   	INC startingAddress
   	POKE startingAddress, filled
   	INC startingAddress
   	POKE startingAddress, middle
   	INC startingAddress
   	POKE startingAddress, filled	
   	INC startingAddress
   	POKE startingAddress, filled
   	INC startingAddress
   
   	' I (5x8 pixel)
   
   
   	POKE startingAddress, none
   	INC startingAddress
   	POKE startingAddress, filled
   	INC startingAddress
   	POKE startingAddress, filled
   	INC startingAddress
   
   END PROC
   
   PROCEDURE clearHi
   
   	SHARED startingAddress
   
   	DIM index AS BYTE = &H00
   	DIM none AS BYTE = &H00
   
   	IF startingAddress > 8 THEN
   		startingAddress = startingAddress - 8
   	ELSE
   		startingAddress = 0
   	ENDIF
   	
   	DO
   		POKE startingAddress, none
   		INC startingAddress
   		INC index
   		EXIT IF index > 16
   	LOOP		
   	
   END PROC
   
   DO
   
   	IF increment = 0 THEN
   		INC actualAddress
   		IF actualAddress > &H300f THEN
   			increment = 1
   		ENDIF
   	ELSE
   		DEC actualAddress
   		IF actualAddress < &H3008 THEN
   			increment = 0
   		ENDIF
   	ENDIF
   	
   	clearHi[]
   	startingAddress = actualAddress
   	drawHi[]
   	WAIT 200 CYCLES
   	WAIT 200 CYCLES
   	WAIT 200 CYCLES
   	WAIT 200 CYCLES
   	WAIT 200 CYCLES
   	WAIT 200 CYCLES
   	WAIT 200 CYCLES
   	WAIT 200 CYCLES
   	WAIT 200 CYCLES
   	WAIT 200 CYCLES
   		
   LOOP
   


==== SOURCE FILE ====
  * ''[[https://github.com/spotlessmind1975/ugbasic/tree/main/examples/bug.bas|bug.bas]]''
==== HOW TO COMPILE AND RUN ====
The instructions here refer to compiling the example from the command line. For Microsoft Windows users we suggest using **[[https://spotlessmind1975.itch.io/ugbasic-ide|UGBASIC-IDE]]**, which allows you to compile the example with just one click.=== ATARI 400/800 family ===
In order to compile and run the example, you need to have the Altirra emulator, and in particular that the ''altirra'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.atari bug.bas -o example.xex
   altirra example.xex
   
   # Windows 
   ugbc.atari.exe bug.bas -o example.xex
   altirra example.xex
=== ATARI 600XL/800XL/1200XL/XG(SE) family ===
In order to compile and run the example, you need to have the Altirra emulator, and in particular that the ''altirra'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.atarixl bug.bas -o example.xex
   altirra example.xex
   
   # Windows 
   ugbc.atarixl.exe bug.bas -o example.xex
   altirra example.xex
=== Commodore 64 ===
In order to compile and run the example, you need to have the VICE emulator, and in particular that the ''x64sc'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.c64 bug.bas -o example.prg
   x64sc example.prg
   
   # Windows 
   ugbc.c64.exe bug.bas -o example.prg
   x64sc example.prg
=== Commodore 64+REU ===
In order to compile and run the example, you need to have the VICE emulator, and in particular that the ''x64sc'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.c64reu bug.bas -o example.prg
   x64sc -reu example.prg
   
   # Windows 
   ugbc.c64reu.exe bug.bas -o example.prg
   x64sc -reu example.prg
=== Commodore PLUS/4 ===
== Using YAPE ==
In order to run the example, you need to have the YAPE emulator. In particular that the ''yape'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.plus4 bug.bas -o example.prg
   yape example.prg
   
   # Windows 
   ugbc.plus4.exe bug.bas -o example.prg
   yape example.prg
== Using VICE ==
In order to run the example, you need to have the VICE emulator. In particular that the ''xplus4'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.plus4 bug.bas -o example.prg
   xplus4 example.prg
   
   # Windows 
   ugbc.plus4.exe bug.bas -o example.prg
   xplus4 example.prg
=== Dragon 32 ===
In order to compile and run the example, you need to have the XROAR emulator, and in particular that the ''xroar'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.d32 bug.bas -o example.bin
   xroar -rompath (your rom path) example.bin
   
   # Windows 
   ugbc.d32.exe bug.bas -o example.bin
   xroar.exe -rompath (your rom path) example.bin
=== Dragon 64 ===
In order to compile and run the example, you need to have the XROAR emulator, and in particular that the ''xroar'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.d64 bug.bas -o example.bin
   xroar -rompath (your rom path) example.bin
   
   # Windows 
   ugbc.d64.exe bug.bas -o example.bin
   xroar.exe -rompath (your rom path) example.bin
=== PC128 Olivetti Prodest ===
In order to compile and run the example, you need to have the DCMOTO emulator, and in particular that the ''dcmoto'' executable is accessible.

Then, type this command on the command line and on the emulator:

   # Linux 
   ugbc.pc128op bug.bas -o example.k7
   dcmoto
   (choose BASIC 128)
   CLEAR,&H2FFF: LOADM"CASS:",R: EXEC
   
   # Windows 
   ugbc.pc128op.exe bug.bas -o example.k7
   dcmoto
   (choose example.k7)
   (choose BASIC 128)
   CLEAR,&H2FFF: LOADM"CASS:",R: EXEC
=== Thomson MO5 ===
In order to compile and run the example, you need to have the DCMOTO emulator, and in particular that the ''dcmoto'' executable is accessible.

Then, type this command on the command line and on the emulator:

   # Linux 
   ugbc.pc128op bug.bas -o example.k7
   dcmoto
   (choose BASIC 128)
   CLEAR,&H2FFF: LOADM"CASS:",R: EXEC
   
   # Windows 
   ugbc.pc128op.exe bug.bas -o example.k7
   dcmoto
   (choose example.k7)
   (choose BASIC 128)
   CLEAR,&H2FFF: LOADM"CASS:",R: EXEC
=== Commodore VIC-20 ===
In order to compile and run the example, you need to have the VICE emulator, and in particular that the ''xvic'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.vic20 bug.bas -o example.prg
   xvic --memory 24k example.prg
   
   # Windows 
   ugbc.vic20.exe bug.bas -o example.prg
   xvic --memory 24k example.prg
=== ZX Spectrum ===
In order to compile and run the example, you need to have the Speccy emulator, and in particular that the ''speccy'' executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.zx bug.bas -o example.tap
   Speccy example.tap
   
   # Windows 
   ugbc.zx.exe bug.bas -o example.tap
   Speccy example.tap
=== MSX ===
In order to compile and run the example, you need to have the openMsx or the BlueMSX emulator, and in particular that its executable is accessible.

Then, type this command on the command line:

== openMSX ==
   # Linux 
   ugbc.msx1 bug.bas -o example.rom
   openmsx -cart example.rom
   
   # Windows 
   ugbc.msx1.exe bug.bas -o example.rom
   openmsx -cart example.rom
== blueMSX ==
   # Linux 
   ugbc.msx1 bug.bas -o example.rom
   bluemsx example.rom
   
   # Windows 
   ugbc.msx1.exe bug.bas -o example.rom
   bluemsx example.rom
=== ColecoVision ===
In order to compile and run the example, you need to have the openMsx or the BlueMSX emulator, and in particular that its executable is accessible.

Then, type this command on the command line:

== openMSX ==
   # Linux 
   ugbc.coleco bug.bas -o example.rom
   openmsx -machine \"COL - ColecoVision\" -cart example.rom
   
   # Windows 
   ugbc.coleco.exe bug.bas -o example.rom
   bluemsx -machine \"COL - ColecoVision\" example.rom
== blueMSX ==
   # Linux 
   ugbc.coleco bug.bas -o example.rom
   bluemsx /machine \"COL - ColecoVision\" /rom1 example.rom
   
   # Windows 
   ugbc.coleco.exe bug.bas -o example.rom
   bluemsx  /machine \"COL - ColecoVision\" /rom1 example.rom
=== SEGA SC-3000 ===
In order to compile and run the example, you need to have the BlueMSX emulator, and in particular that its executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.sc3000 bug.bas -o example.rom
   bluemsx /machine \"SEGA - SC-3000\" /rom1 example.rom
   
   # Windows 
   ugbc.sc3000.exe bug.bas -o example.rom
   bluemsx  /machine \"SEGA - SC-3000\" /rom1 example.rom
=== SEGA SG-1000 ===
In order to compile and run the example, you need to have the BlueMSX emulator, and in particular that its executable is accessible.

Then, type this command on the command line:

   # Linux 
   ugbc.sg1000 bug.bas -o example.rom
   bluemsx /machine \"SEGA - SG-1000\" /rom1 example.rom
   
   # Windows 
   ugbc.sg1000.exe bug.bas -o example.rom
   bluemsx  /machine \"SEGA - SG-1000\" /rom1 example.rom
==== ANY PROBLEM? ====
If you have found a problem trying to run this example, if you think there is a bug or, more simply, you would like it to be improved, [[https://github.com/spotlessmind1975/ugbasic/issues/new?title=IMPROVE  |open an issue]] for this example on GitHub. Thank you!===== POWERED BY =====

[[:ugbasic:user:examples|{{ :ugbasic:user:logo-ugbasic.png?nolink&600 |}}]]