* [[Media:Mostek Z80 Programming Manual.pdf]]
* [[Media:Z80 CPC Timings cheat sheet.20230709.pdf]]
* [[Media:Memptr eng.txt|MEMPTR, esoteric register of the Z80 CPU]]
* [[Media:Z80-documented-v0.91.pdf|The Undocumented Z80 Documented]]
* [[Z80 - undocumented opcodes]]