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The MS-DOS Program Segment Prefix[1] exists for source compatibility with CP/M. https://en.wikipedia.org/wiki/Program_Segment_Prefix https://en.wikipedia.org/w
by wvenable 7y ago
The MS-DOS Program Segment Prefix[1] exists for source compatibility with CP/M.
https://en.wikipedia.org/wiki/Program_Segment_Prefix https://en.wikipedia.org/wiki/Program_Segment_Prefix
https://en.wikipedia.org/wiki/Zero_page_(CP/M) https://en.wikipedia.org/wiki/Zero_page_(CP/M)
- sedatk 7y agoAlso, first 9 or so functions of INT 21h were directly analogous to CP/M's BDOS. DOS also used FCB similar to CP/M.