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1) QCDROM.SYS was very old, seriously outdated, try XDVD2.SYS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
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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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Re: Dos 6 conventional memory tricks

Postby Caluser2000 » 2019-6-23 @ 01:33

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


How can i get EMM memory without EMM386/QEMM?

Get a system that can allocate EMS in its bios setup routine like my Zenith Z286LP Plus.
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Re: Dos 6 conventional memory tricks

Postby gdjacobs » 2019-6-23 @ 03:16

EMS ISA card? Not sure how they play with a 386 MMU.
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Re: Dos 6 conventional memory tricks

Postby oeuvre » 2019-6-26 @ 15:48

Never even heard of EMS ISA cards... those exist?
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Re: Dos 6 conventional memory tricks

Postby BloodyCactus » 2019-6-26 @ 16:12

loads of EMS ISA cards. heaps for xt + 286.
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Re: Dos 6 conventional memory tricks

Postby Caluser2000 » 2019-6-26 @ 23:08

oeuvre wrote:Never even heard of EMS ISA cards... those exist?
I've got one that takes 8megs of dimms. They were widely used late 80s.
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Re: Dos 6 conventional memory tricks

Postby retardware » 2019-6-27 @ 00:35

oeuvre wrote:Never even heard of EMS ISA cards... those exist?


ROFL... EMS cards existed ONLY for ISA!
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Re: Dos 6 conventional memory tricks

Postby oeuvre » 2019-6-27 @ 13:08

I want EMS cards for PCIe!
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