ugBASIC User Manual

   = value IS NOT position

This instruction allows you to check if a certain bit in a certain position (0 based) in a variable or expression is set to 0 or to 1. If that certain bit is set to 0, the instruction will return the value `TRUE`. Otherwise, the statement will return `FALSE`.

  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

 IS Nt

• Atari (400/800)
• Atari XL/XE
• Commodore 128 (MOS 8502)
• Commodore 128 (Zilog Z80)
• Commodore 64
• Commodore 64+REU
• TRS-80 Color Computer
• TRS-80 Color Computer 3
• ColecoVision
• Amstrad CPC 664
• Dragon 32
• Dragon 64
• Thomson MO5
• Thomson MO5
• Olivetti Prodest PC128
• Commodore PLUS/4
• SEGA SC-3000
• SEGA SG-1000
• VG-5000
• Commodore VIC-20
• ZX Spectrum 48

IS BIT HAS BIT HAS NOT BIT

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!