There were also third party implementations which supported the Vortex RAM Expansion such as [[RCPM]].
== Vortex's patch 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 CP/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 CP/M you need:
* a CPC464