Vortex CP/M

At first, Vortex provided a patched version of CP/M 2.2 together with their F1/M1 S- and D-Drives. After a legal dispute with Digital Research, Vortex switched to only provide patches for CP/M 2.2 (XPATCH.COM) and CP/M 3.0 (XPATCH30.COM) to enable using their floppy disc drives.

Patch for CP/M 2.2 to enable 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
• 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.