Mike did base his Spectrum port from the Amstrad version which was the result of Crammonds own 6502 to Z80 translator. He mention this here: emix8.org/mfollin/
Enjoyed reading the notes. Clever stuff about discarding the input definition code after use, and to avoid masking sprites for the top of screen. How about reversing Ghost n Goblins next 🙂.
An article about the Z80 graphics routines in Ghost 'n Goblins on the ZX Spectrum: emix8.org/ggdisasm/
#zxspectrum #retrocoding #z80
