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+--- Thread: CP/M 3 Banked Disk for 128k Microbee (/thread-192.html)
CP/M 3 Banked Disk for 128k Microbee - ChickenMan - 08-09-2020
This is a banked version of CP/M 3 for the 128k Microbee, both standard or premium models an a standard 5.25" Microbee disk. Original author is unknown.
CP/M 3 (also known as CP/M Plus) is an advanced version of the normal CP/M 2.2 or ZCPR2 we all know that runs on the Microbee. The Digital Research manual for CP/M 3 is availble at http://www.cpm.z80.de/manuals/cpm3-usr.pdf so grab that and have a good read.
The last 8-bit version of CP/M was version 3, often called CP/M Plus, released in 1983. It incorporated the bank switching memory management in a single-user single-task operating system compatible with CP/M 2.2 applications. CP/M 3 could therefore use more than 64 KB of memory on an 8080 or Z80 processor. The system could be configured to support date stamping of files. This version provides a TPA area of 60kb.
So in the MbeeTech Repository in the Microbee\Software\System_Disks\Systems folder we placed
cpm3_v1.1_banked_ds40.dsk