{{htmlmetatags>metatag-robots=()
metatag-title=(I/O CONTROL KEYBOARD READ (BIT DECODING SCANSHIFT) | ugBASIC User Manual)
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metatag-description=(An isomorphic language for retrocomputers)
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metatag-og:title=(I/O CONTROL KEYBOARD READ (BIT DECODING SCANSHIFT) | ugBASIC User Manual) 
metatag-og:description=(An isomorphic language for retrocomputers)
}}

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

===== I/O CONTROL KEYBOARD READ (BIT DECODING SCANSHIFT) =====

==== PURPOSE ====
 This example will show the various way that are allowed in order to check if a specific (shift) bit is on or off. The first is by using the ''BIT'' function, that check for a specific bit. The second is using the keywords ''BIT...OF'', that is a synonym of the previous function. Finally, we show the use of conditions ''HAS BIT'' and ''IS'', that checks for specific bitmask.  

==== SOURCE CODE ====
   
       CLS
   
       DO
   
           HOME
   
           PRINT SCANSHIFT
           
           left = BIT( SCANSHIFT, LEFT SHIFT )
           PRINT "LEFT IS: ";left
           
           left = BIT LEFT SHIFT OF SCANSHIFT
           PRINT "LEFT IS: ";left
           
           IF SCANSHIFT HAS BIT LEFT SHIFT THEN : PRINT "LEFT" : ENDIF
           IF SCANSHIFT IS LEFT SHIFT THEN : PRINT "LEFT" : ENDIF
           
           IF SCANSHIFT HAS NOT BIT LEFT SHIFT THEN : PRINT "NOT LEFT" : ENDIF
           IF SCANSHIFT IS NOT LEFT SHIFT THEN : PRINT "NOT LEFT" : ENDIF
   
       LOOP
   


==== SOURCE FILE ====
  * ''[[https://github.com/spotlessmind1975/ugbasic/tree/main/examples/controls_keyboard_05.bas|controls_keyboard_05.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 controls_keyboard_05.bas -o example.xex
   altirra example.xex
   
   # Windows 
   ugbc.atari.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.xex
   altirra example.xex
   
   # Windows 
   ugbc.atarixl.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.prg
   x64sc example.prg
   
   # Windows 
   ugbc.c64.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.prg
   x64sc -reu example.prg
   
   # Windows 
   ugbc.c64reu.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.prg
   yape example.prg
   
   # Windows 
   ugbc.plus4.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.prg
   xplus4 example.prg
   
   # Windows 
   ugbc.plus4.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.bin
   xroar -rompath (your rom path) example.bin
   
   # Windows 
   ugbc.d32.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.bin
   xroar -rompath (your rom path) example.bin
   
   # Windows 
   ugbc.d64.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.k7
   dcmoto
   (choose BASIC 128)
   CLEAR,&H2FFF: LOADM"CASS:",R: EXEC
   
   # Windows 
   ugbc.pc128op.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.k7
   dcmoto
   (choose BASIC 128)
   CLEAR,&H2FFF: LOADM"CASS:",R: EXEC
   
   # Windows 
   ugbc.pc128op.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.prg
   xvic --memory 24k example.prg
   
   # Windows 
   ugbc.vic20.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.tap
   Speccy example.tap
   
   # Windows 
   ugbc.zx.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.rom
   openmsx -cart example.rom
   
   # Windows 
   ugbc.msx1.exe controls_keyboard_05.bas -o example.rom
   openmsx -cart example.rom
== blueMSX ==
   # Linux 
   ugbc.msx1 controls_keyboard_05.bas -o example.rom
   bluemsx example.rom
   
   # Windows 
   ugbc.msx1.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.rom
   openmsx -machine \"COL - ColecoVision\" -cart example.rom
   
   # Windows 
   ugbc.coleco.exe controls_keyboard_05.bas -o example.rom
   bluemsx -machine \"COL - ColecoVision\" example.rom
== blueMSX ==
   # Linux 
   ugbc.coleco controls_keyboard_05.bas -o example.rom
   bluemsx /machine \"COL - ColecoVision\" /rom1 example.rom
   
   # Windows 
   ugbc.coleco.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.rom
   bluemsx /machine \"SEGA - SC-3000\" /rom1 example.rom
   
   # Windows 
   ugbc.sc3000.exe controls_keyboard_05.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 controls_keyboard_05.bas -o example.rom
   bluemsx /machine \"SEGA - SG-1000\" /rom1 example.rom
   
   # Windows 
   ugbc.sg1000.exe controls_keyboard_05.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 I/O CONTROL KEYBOARD READ (BIT DECODING SCANSHIFT)|open an issue]] for this example on GitHub. Thank you!===== POWERED BY =====

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