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BIOS Functions: Difference between revisions

From CPCWiki - THE Amstrad CPC encyclopedia!
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Line 17: Line 17:
* [[AMSDOS RSX Functions]]
* [[AMSDOS RSX Functions]]
* [[AMSDOS Hidden RSX Functions]]
* [[AMSDOS Hidden RSX Functions]]
== Reserved CPU Registers ==
  AF'  Reserved for Interrupts (A=old C', CY=External IRQ Flag)
  BC'  Reserved for Gate Array (BC=7F8xh, LSBs=ROM enable/video mode)
  DE'  Reserved for BIOS
  HL'  Reserved for BIOS

Revision as of 22:27, 24 January 2010

Function Summary

Details on Functions

Reserved CPU Registers

 AF'   Reserved for Interrupts (A=old C', CY=External IRQ Flag)
 BC'   Reserved for Gate Array (BC=7F8xh, LSBs=ROM enable/video mode)
 DE'   Reserved for BIOS
 HL'   Reserved for BIOS