ugBASIC User Manual

   REPEAT
       ...
   UNTIL expression

This instruction define a conditional loop, or a list of statements that will be executed until an expression is true. REPEAT acts as the starting position while UNTIL as the ending one. This command provides a convenient way of making the program repeat a group of instructions all the time a particular condition is false. The condition is checked again at ending of every turn of the loop, until it is no longer false.

  REPEAT : score = score + 1 : UNTIL NOT alive

See also the following example files:

• control_loops_05.bas

 Rpt...Un

• 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

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!