PRG file: Difference between revisions

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PRG files are used as the 68k program (the equivalent of [[P ROM]]s on [[:Category:cartridge systems|cartridge systems]], but the content '''isn't byteswapped'''). Several games overcome the 1MiB limit by keeping a main PRG file loaded, and swap the ones containing arrays like level maps, animation tables...
PRG files are used as the 68k program (the equivalent of [[P ROM]]s on [[:Category:cartridge systems|cartridge systems]], but the content '''isn't byteswapped'''). Several games overcome the 2MiB limit by keeping a main PRG file loaded, and swap the ones containing arrays like level maps, animation tables...
 
'''[[Logo file|LOGO_*.PRG files]] are handled differently !'''


*Maximum file size: 1MiB
*Maximum file size: 1MiB

Revision as of 09:40, 16 April 2011

PRG files are used as the 68k program (the equivalent of P ROMs on cartridge systems, but the content isn't byteswapped). Several games overcome the 2MiB limit by keeping a main PRG file loaded, and swap the ones containing arrays like level maps, animation tables...

LOGO_*.PRG files are handled differently !

  • Maximum file size: 1MiB
  • Type code: 0
  • Loadable in: 68k program DRAM ($000000~$0FFFFF)
  • Banks: 1 ($000000~$0FFFFF)