*[http://www.myquest.nl/z80undocumented/z80-documented-v0.91.pdf "The Undocumented Z80 Documented" by Sean Young Version 0.91, 18th September, 2005] at [http://www.myquest.nl/z80undocumented/ Jan Wilmans' Website]
*[{{BrokenLink|http://www.grimware.org/lib/exe/fetch.php/documentations/devices/z80/z80.memptr.eng.txt |2017|01|22|21|32|33|text=Short information about the internal "MEMPTR" 16bit register of the Z80 and its influence on the F-Register]}}
[[Category:Programming]]