Vortex implemented their own version of CP/M for the CPC, this page describes thatand also provided patches for Amstrad's CP/M to use their memory expansion. They didn There were also third party implementations which supported the Vortex RAM Expansion such as [[RCPM]]. == Vortex't s patch for CP/M 2.2 to use Vortex RAM Expansion == Vortex provided a disc with a PATCH.COM on it which patched Amstrad's versionCP/M 2.2, which came with the CPC664, so that CPM could use their RAM expansion to get 63KB TPA.
== Vortex's implementation of CP/M on Floppy ==
To boot CCP/PM M you need:
* a CPC464
* VDOS 1.0 on ROM and a Vortex disc interface.
* a 80 track double sided drive A.
* a Vortex 512KB RAM Expansion.
There are other versions of VDOS and other ways to boot their CPM on CPC6128 etc.
== Vortex's implementation of CP/M on Vortex's Winchester WD20 hard disk ==
Vortex's CP/M for their hard disk is CPM2.2 only.
[[Category:Operating System]][[Category:CP/M]]