* [[Media:Z80 CPU Technical Manual 1977.pdf]]
* [[Media:Mostek Z80 Programming Manual.pdf]]
* [[Media:Z80 CPU Instant Reference Card (Color).pdf]]
* [[Media:Z80 CPC Timings cheat sheet.20230709.pdf]]
* [[Media:Memptr eng.txt|MEMPTR, esoteric register of the Z80 CPU]]