ugBASIC User Manual

   GLOBAL var1[, var2[, ...] ]
   GLOBAL "string1"[, "string2"[, ...] ]

This keyword sets up a list of variables that can be accessed from absolutely anywhere in your program. This is a simplified single command, designed to be used without the need for an explicit SHARED statement in procedure definitions.

There is a facility of using strings in procedure definitions. As with disc names, the “wild card” characters * and ? can also be included. In this case, the * character is used to mean “match this with any list of characters in the variable name, until the next control character is reached”, and the ? character means “match this with any single character in the variable name”.

GLOBAL or SHARED should be employed before the first use of the variable. Only strings may be used for this technique.

  GLOBAL test
  GLOBAL "a*", b, "*c"

See also the following example files:

• procedures_global_01.bas
• procedures_global_02.bas

 Gb

• 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!