== Z80 CPU ==
*🔥[https://www.cpc-power.com/index.php?page=database&lemot=raxoft Raxoft tests] CPC port of [https://github.com/raxoft/z80test z80test] [https://www.cpc-power.com/index.php?page=detail&num=6346 ZexAll (CP/M)] Z80 CPU instruction set exercisers
*[https://www.cpc-power.com/index.php?page=detail&num=298 Arkanoid (using Z80 Interrupt Mode 2)] [https://www.cpc-power.com/index.php?page=detail&num=427 L'anneau de Zengara (using Z80 register R)] [https://www.cpc-power.com/index.php?page=detail&num=1299 Light Corridor (Z80 useless instruction prefixes)] [https://www.cpc-power.com/index.php?page=detail&num=735 Dogsbody (accessing non-standard I/O ports)]
*[https://wikiti.brandonw.net/?title=Z80_Instruction_Set Z80 instruction set] [https://zx-pk.ru/attachment.php?attachmentid=2989&d=1143656567 Z80 MEMPTR (aka WZ) internal register] [https://github.com/hoglet67/Z80Decoder/wiki/Undocumented-Flags Even weirder Z80 behaviour] [https://zxe.io/software/Z80/documentation/latest/Thanks.html To get to the bottom of it] [https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/z80-cpu-nmos-or-cmos/ Z80 is always NMOS on CPC and Plus] How the Z80 behaves