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- DOS4GW
-
- DOS4GW is the version of Rational Systems, Inc. DOS4G product that
- is distributed with the WATCOM C/386 product.
-
- The following is condensed from the WATCOM documentation.
-
- Running an XMS manager like HIMEM.SYS avoids most problems and is
- highly recommended.
-
- DOS4GW parameters are in environment variables DOS4G, DOS16M, and
- DOS4GVM.
-
- SET DOS4G=quiet - suppresses the DOS4GW startup banner
-
- SET DOS16M= [mode] [[@start [- end]] [:size] [^options]
-
- [mode] is required on a few machines.
-
- mode machine
- 1 NEC 98-series
- 5 Fujitsu FMR-60,70
- 14 Hitachi B32
- 15 OKI if800
-
- [@start [- end]] is required if mode is required or if running
- programs that use extended memory in non-standard ways. The
- address range is the extended memory that DOS4GW will use.
-
- [:size] limits the extended memory that DOS4GW uses leaving
- some for other users. DOS4GW run directly under DOS (not under
- WINDOWS, ...) takes all extended memory unless limited.
-
- [^options] selects the following:
-
- 0x01 check A20 line.
-
- 0x02 prevent VCPI initialization. Normally DOS4GW
- searches for a VCPI server and forces it on.
-
- SET DOS16M=1 @2m-5m use 3 megabytes starting at 2
- megabytes on a NEC 98.
-
- SET DOS16M= :2048 use 2 megabytes of extended memory.
-
- SET DOS16M=:4m ^0x02 use 4 megabytes and don't start VCPI.
-
- SET DOS4GVM= [option [#value]] [option [#value]] ...
-
- MINMEM min memory managed by VMM. 512K default.
- MAXMEM max memory managed by VMM. 4M default.
- SWAPNAME \dos4gvm.swp is the default.
- DELETESWAP default leaves swap file for faster startup.
- VIRTUALSIZE size of virtual memory. 16M default.
-
- SET DOS4GVM=MAXMEM#4096 DELETESWAP SWAPNAME#C:\APLI386
-
- PMINFO.EXE
-
- Measures the performance of protected/read-mode switching and
- extended memory.