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- This is a device driver that makes either a hard disk or a floppy disk
- into LIM4 expanded memory. It is a software emulation of the 28
- function standard set forth in the Lotus/Intel/Microsoft Expanded Memory
- Standard (LIM/EMS) version 4.0. All of the EMS 4.0 functions that can
- be implemented through software are provided by VMS40, with the
- exception of the DMA functions included in the Alternate Map Register
- Set function (function 28).
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- The program is backwards compatible with software written for the
- earlier LIM 3.2 standard (courtesy of Lotus, Intel & Microsoft). It
- lets you specify which drive to use for expanded memory, and how much
- disk to reserve.
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- The trial version VMS40.240 restricts you to reserving no more than 240K
- for LIM memory, while the registered version VMS40.SYS allows you to
- reserve up to 32M
-
- Naturally, using disk to simulate LIM memory is somewhat slower than
- having the appropriate hardware implementation, but it is also a lot
- cheaper! If you need to run big spreadsheets, or use Borland's
- standalone debugger to debug a really large program, and you cannot
- afford 2Meg of LIM memory, then VMS40 is your answer.
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