RAMDOS manual


£ SF1A                  [Enter]
0F1A 79   CD                  [Enter]
0F1B F6   F8                  [Enter]
0F1C 20   01                  [Enter]
0F1D 23   X                   [Enter]
?
£ S3B8                        [Enter]
03B8 FF   79                  [Enter]
03B9 FF   E6                  [Enter]
03BA FF   03                  [Enter]
03BB FF   F6                  [Enter]
03BC FF   20                  [Enter]
03BD FF   C9                  [Enter]
03BE FF   X                   [Enter]
?
£[Press CTRL & C together]
CP/M 3 SAVE - Version 3.0
Enter file (type RETURN to Exit): C10CPM3.EMS [Enter]
Delete C10CPM3.EMS? Y                         [Enter]
Beginning hex address 100                     [Enter]
Ending hex address 6500                       [Enter]
A>
The disc is now reconfigured.

Technical details

This patch enables CP/M + to recognise a 5.25" drive B. It can only be used on CP/M + on the CPC, and not on CP/M 2.2 Plus on the PCW.

The DPB values are the ones poked into &5A5-&5BF. The values patch are for the D20 format. If you wish to have a different format, use the following values:

D1:  14 00 04 0F 00 67 01 7F 00 C0 00 20 00 00 00 02 03 01 50 09 01 00 02 2A 52 60 FF
D10: 28 00 04 0F 00 8F 01 7F 00 C0 00 20 00 00 00 02 03 01 50 0A 11 00 02 09 10 60 FF
D2:  24 00 04 0F 00 67 01 FF 00 F0 00 20 00 00 00 02 03 01 50 09 21 00 02 2A 52 60 FF
D20: 28 00 04 0F 00 8F 01 FF 00 F0 00 20 00 00 00 02 03 01 50 0A 31 00 02 09 10 60 FF
D40: 28 0O 04 0F 00 C7 00 7F 00 C0 00 20 00 00 00 02 03 01 28 0A 51 00 02 09 10 60 FF
D80: 28 00 04 0F 00 C7 00 7F 00 C0 00 20 00 00 00 02 03 00 50 0A 71 00 02 09 10 60 FF