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Simtel MSDOS - Coast to Coast
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simteldosarchivecoasttocoast2.iso
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asmutil
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dos32v12.zip
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VERSION.TXT
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1993-10-17
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790b
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27 lines
Changes to the new Version 1.2 of DOS32 to the old Version 1.0.
1) A new descriptor is avalible for the PROGRAM ENVIRONMENT
LIMIT = 100h, BASE = environment segment.
2) 386 CPU detection.
3) There is no more seperate data and code segments.
The base address of the data and code descriptors both point
to your program segment.
4) The way in which the V86 mode segment registers are passed
to/from protected mode is no longer done through the first
few locations of the stack segment. The new version uses
labes in your program segment.
instead of doing
mov SS:REAL_DS, 1234h
now just
mov REAL_DS, 1234h
Because this dosn't rely on the stack there is no restriction
to where the stack is located. This was not the case in Version 1.0