* [[Graduate Software]] provided a version of CP/M+ on ROM.
Various utilities also patched CP/M to use extended disc formats and to support Amstrad peripherals.which included:* [[DkTronics_CPM|Dk'Tronics patches CP/M]]* [[ROMDOS|RAMDOS/ROMDOS patched for CPM2.2 and CP/M+ to use RAMDOS/ROMDOS disc formats]]
CP/M versions relating to the Amstrad CPC