Difference between revisions of "BIOS Functions"

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== Function Summary ==
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== BIOS Function Summary ==
  
 
* [[BIOS Function Summary]]
 
* [[BIOS Function Summary]]
  
== Details on Functions ==
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== Details on BIOS Functions ==
  
 
* [[BIOS Kernel Functions]]
 
* [[BIOS Kernel Functions]]
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* [[AMSDOS Hidden RSX Functions]]
 
* [[AMSDOS Hidden RSX Functions]]
  
== Reserved CPU Registers ==
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== BIOS Reserved CPU Registers ==
 
   AF'  Reserved for Interrupts (A=old C', CY=External IRQ Flag)
 
   AF'  Reserved for Interrupts (A=old C', CY=External IRQ Flag)
 
   BC'  Reserved for Gate Array (BC=7F8xh, LSBs=ROM enable/video mode)
 
   BC'  Reserved for Gate Array (BC=7F8xh, LSBs=ROM enable/video mode)
 
   DE'  Reserved for BIOS
 
   DE'  Reserved for BIOS
 
   HL'  Reserved for BIOS
 
   HL'  Reserved for BIOS
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== BIOS Memory Maps ==
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* [[BIOS Overall Memory Map]]
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* [[AMSDOS Memory Map]]
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== Other Information ==
 +
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* [[Media:The Amstrad CPC Firmware Guide.txt|The Amstrad CPC Firmware Guide]] - original txt version
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* [[Media:CPC firmware.pdf|The Amstrad CPC Firmware Guide]] - decadent pdf version
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* [[Media:System vectors Complete list(6128)-ENG-.pdf|System vectors complete list]] for Amstrad CPC 6128
 +
* [[Media:Schneider CPC464 Firmware Handbuch.pdf|Schneider CPC464 Firmware Handbuch]] - german version of The Amstrad CPC Firmware Guide
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* [[Soft968: CPC 464/664/6128 Firmware]] - official firmware specs
 +
[[Category:BIOS]]

Latest revision as of 18:17, 26 June 2024

BIOS Function Summary

Details on BIOS Functions

BIOS 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

BIOS Memory Maps

Other Information