ADD var, expr [, lower TO upper]

The ADD command can be used to add the result of an expression to a whole number variable. It is the equivalent to make a variable=variable+expression but performs the addition faster. There is a more complex version of ADD, which is ideal for handling certain loops much more quickly than the equivalent separate instructions. When those other parameters are included, ADD v,a,b TO t is the equivalent to the following lines:

v=v+a
IF v<b THEN v=t: ENDIF
IF v>t THEN v=b: ENDIF

  ADD x,42,1 TO 100
  ADD y,10

See also the following example files:

• maths_fast_02.bas

 Ad

• Atari (400/800)
• Atari XL/XE
• Commodore 128 (MOS 8502)
• Commodore 128 (Zilog Z80)
• Commodore 64
• 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

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!