Supported CPC models are cpc464, cpc464p, cpc664, cpc6128, cpc6128p, gx4000, cpc6128f (French), cpc6128s (Swedish), and the clones kccomp ([[KC Compact]]) and al520ex ([[Aleste 520EX]]; hold Shift during boot to go to Basic).
Press ''Scroll Lock'' to toggle partial keyboard emulation mode. Now you can use ''P'' to pause MAME, ''Tab'' to enter the MAME menu, and ''Escape'' to quit MAME. ''Alt-Return'' toggles fullscreen mode.(See also [http://docs.mamedev.org/usingmame/defaultkeys.html default keys].)
You can use the "-ab" commandline option to type text into MAME, e.g.