== Z80 CPU ==
*[https://cpcrulez.fr/applications_util-zexall.htm ZEXALL] and [https://cpcrulez.fr/applications_util-zexdoc.htm ZEXDOC] Z80 CPU instruction set exercisers
*[https://www.cpc-power.com/index.php?page=detail&num=12883 Z80 Full Test] [https://www.cpc-power.com/index.php?page=detail&num=12881 Z80 Doc Test] [https://www.cpc-power.com/index.php?page=detail&num=12882 Z80 Flags Test] [https://www.cpc-power.com/index.php?page=detail&num=12880 Z80 Doc Flags Test] [https://www.cpc-power.com/index.php?page=detail&num=12884 Z80 MEMPTR Test] [https://www.cpc-power.com/index.php?page=detail&num=12879 Z80 CCF Test]
*[https://www.cpc-power.com/index.php?page=detail&num=298 Arkanoid] [https://www.cpc-power.com/index.php?page=detail&num=1299 Light Corridor] Z80 IM2 usage, Z80 useless instruction prefixes