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Digital-Research-Source-Code/CPM OPERATING SYSTEMS/CPM 2.X/CPM 2.2/CPM 2.2 ASM/README.MARKDOWN
Sepp J Morris 31738079c4 Upload 
Digital Research
2020-11-06 18:50:37 +01:00

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This folder contains a disassembled source for CP/M 2.2 in both 8080, and Z80, mnemonics. This source is highly commented and claims to implement a fix for a problem with deblocking algorithms.

/READ.ME

The two files in this ZIP file are disassembled CP/M 2.2.

    CPM22.ASM       : CP/M 2.2 in 8080 mnemonics
    CPM22.Z80       : CP/M 2.2 in  Z80 mnemonics

Both files claim to implement a fix that affects operation in a sector deblocking environment. The Z80 version does not look to have been optimized for the Z80, it just uses Z80 mnemonics.