Amstrad CPC

Amstrad CPC

The Amstrad consists of a Z80A @ 3.5 MHz CPU

Setting up

• Native-assemblers:
  • orgams - Definitvely the state-of-the-art assembler on Amstrad CPC

• Cross-Assemblers:
  • The emulator Winape has an integrated assembler.
  • cross-platform SjASMPlus assembler supports CPC snapshot and CDT files since v1.18.4.
  • Rasm - extremely fast cross-platform Z80 assembler with many features.
  • BASM - a modern Z80 assembler with many features borrowed to mainstream spectrum assemblers, maxam and rasm.

• Emulator(s):
  • Winape is very accurate and includes an assembler / debugger
  • Caprice gets very regular updates
  • CPCEC is very fast
  • JavaCPC offers many features
  • Retro Virtual Machine is visually very impressive
  • Ace-DL one of the most accurate emulators / UI is less ergonomic than Winape ATM, but it will improve with time
  • Amspirit another accurate emulator

Video Display

No information yet

Sound

No information yet

Assumed state at start

If the intro is launched with RUN"intro, we can assume those facts

• CRTC R12/R13 = 0x3000
• 0xC000-0xFFFF is filled with byte 0x00
• screen mode is 1

Additional Resources

• 64 NOPs Amstrad CPC Tech Blog - https://64nops.wordpress.com/