Dos 6 conventional memory tricks

Getting old software/games running on older hardware.

Re: Dos 6 conventional memory tricks

Postby johnsonlam » 2019-5-15 @ 08:03

Hi,

Try replace all the DOS driver with Jack R. Ellis driver, you may have surprise.

1) QCDROM.SYS was very old, seriously outdated, try XDVD2.SYS
2) XHDD.SYS replace SMARTDRV.SYS, it's faster! It had Read-Ahead, DMA/caching overlap, and other new updates. XHDD also offers caches down to 2.5-MB, for 386 users."
3) HIRAM.EXE, please use latest UMBPCI.SYS with XMGR.SYS on Pentium-1 and later systems supported by UMBPCI.
4) MAMMAKER, QEMM, don't need them anymore. Use JEMM386 available in the FreeDOS files on SourceForge IBiblio."
5) MSCDEX, I use SHSUCDX, Jack R. Ellis version (since Jason Hood gone) which work fine.

Wish everyone can play games or using DOS happily without the old and worn drivers.

http://optimizr.dyndns.org/dos/drivers.html

Rgds,
Johnson Lam.
Last edited by johnsonlam on 2019-5-18 @ 04:14, edited 1 time in total.
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Re: Dos 6 conventional memory tricks

Postby GigAHerZ » 2019-5-15 @ 09:33

johnsonlam wrote:4) MAMMAKER, QEMM, don't need them anymore.


How can i get EMM memory without EMM386/QEMM?
"640K ought to be enough for anybody." - And i intend to get every last bit out of it even after loading every damn driver!
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Re: Dos 6 conventional memory tricks

Postby johnsonlam » 2019-5-18 @ 04:15

GigAHerZ wrote:
johnsonlam wrote:4) MAMMAKER, QEMM, don't need them anymore.


How can i get EMM memory without EMM386/QEMM?


You can get JEMM386, available in the FreeDOS files on SourceForge IBiblio.
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Re: Dos 6 conventional memory tricks

Postby oeuvre » 2019-5-18 @ 13:35

JEMM doesn't work with Windows 3.x IIRC
Retro PC Intel i5 2500, 8GB RAM, AMD HD7770 1GB, SSD + HD, XP/7
Main Desktop Intel i7 6700K, 32GB, AMD RX580 8GB, NVMe SSD + HD, 10
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Re: Dos 6 conventional memory tricks

Postby gdjacobs » 2019-5-19 @ 03:16

In which case you can not use JEMM and let Win3x load EMM386.
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