BIOS Functions
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BIOS Function Summary
Details on BIOS Functions
- BIOS Kernel Functions
- BIOS Kernel RSX Functions (Resident System Extensions)
- BIOS Kernel Timer/Event Functions
- BIOS Machine Pack
- BIOS Keyboard Functions
- BIOS Text Functions
- BIOS Graphics Functions
- BIOS Screen Functions
- BIOS Cassette (or Diskette) Functions
- BIOS Sound Functions
- AMSDOS RSX Functions
- AMSDOS Hidden RSX 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
- The Amstrad CPC Firmware Guide - original txt version
- The Amstrad CPC Firmware Guide - decadent pdf version
- System vectors complete list for Amstrad CPC 6128
- Schneider CPC464 Firmware Handbuch - german version of The Amstrad CPC Firmware Guide
- Soft968: CPC 464/664/6128 Firmware - official firmware specs