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DOS疑难解答 & 问题讨论（解答室） » What does EMM386 do here

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Floor1　imp	Posted 2002-12-23 00:00
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A section from umbpci.txt DEVICE=C:\WINDOWS\HIMEM.SYS /TESTMEM:OFF /Q DEVICE=C:\UMBPCI\UMBPCI.SYS /I=D800-EFFF DEVICE=C:\WINDOWS\EMM386.EXE X=D800-EFFF X=B800-C7FF I=C800-D7FF I=B000-B7FF RAM M3 D=256 AUTO

Floor2　Wengier	Posted 2002-12-23 00:00
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It provides EMS memory.

Floor3　Roy	Posted 2002-12-24 00:00
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*The following is quoted from Wengier at 2002-12-23 23:44:54:* It provides EMS memory. It also marks B000-B7FF and C800-D7FF as UMB areas.

Floor4　Wengier	Posted 2002-12-24 00:00
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That's right.

Floor5　Wengier	Posted 2002-12-24 00:00
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Not only that, it also switches the CPU into protected mode, and provides VCPI memory and so on. But in this example, providing EMS memory is the main thing.

Floor6　imp	Posted 2002-12-24 00:00
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VCPI ?? What is it Could you list the abbreviations for the various kinds of memory

Floor7　Wengier	Posted 2002-12-24 00:00
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Memory, for example: EMS = Expanded Memory Specification XMS = Extended Memory Specification VCPI = Virtual Control Program Interface DPMI = DOS Protected Memory Interface DPMS = DOS Protected Memory Services UMB = Upper Memory Block HMA = High Memory Area etc...

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