EMS Memory

[tontonkaloun]

did anyone manage to set the EMS memory?
i tried

emm386.exe frame = ????

but I can't find the right address

[breiztiger]

hi

i use EMM386.EXE 4096 RAM FRAME=E000 D=256 X=A000-C7FF I=C800-EFFF

for 4Mo EMS

[ExCyber]

I'm no DOS memory management guru, and I don't think I have anything handy that uses EMS to actually test it, but DR-DOS's EMM386 says this when asked to auto-detect the EMS frame:

Code: Select all

Frame=E000  Kb=32768

[tontonkaloun]

I'm no DOS memory management guru, and I don't think I have anything handy that uses EMS to actually test it, but DR-DOS's EMM386 says this when asked to auto-detect the EMS frame:

Code: Select all

Frame=E000  Kb=32768

Thank's
You can try Aladdin for the test

i will try

[tontonkaloun]

with these parameters, I no longer have an error, but I cannot launch any game
i will try with freedos

[NightShadowPT]

with these parameters, I no longer have an error, but I cannot launch any game
i will try with freedos

If you're having trouble with EMM386, try QEMM instead.

I'm using it and it is compatible with most games.

Cheers,

[breiztiger]

or jemm (or jeemex with himem integrated)

https://github.com/Baron-von-Riedesel/Jemm

[Mills]

I also had trouble with EMM386, so installed QEMM 8.0 and nearly all games work.

For example lemmings 3 complains a lot about EMS, even on emulators... But with QEMM it works .

[abbub]

Hrm. I'll have to check my version of QEMM. I had it installed at one point, and it was *highly* unstable, so I switched back to EMM386.

[NightShadowPT]

Hrm. I'll have to check my version of QEMM. I had it installed at one point, and it was *highly* unstable, so I switched back to EMM386.

I'm also using QEMM 8.0 and it's working mostly flawlessly.

[Beeble]

I was unable to get a blank Dos 6.2 vhd to boot, found a pre-build one with a launcher for DOS Games. Most of the work fine with Qemm, but not all.

[tontonkaloun]

I was unable to get a blank Dos 6.2 vhd to boot, found a pre-build one with a launcher for DOS Games. Most of the work fine with Qemm, but not all.

With the games under Dos, you will never have a config that make all the games work, between the sound card and memory problems (xms or ems)! You need a menu. In addition, the core is only limited to games until vga. In svga it will not work!

To have a blank vhd, you only have to reformat your vhd with a floppy dos6.22

[Beeble]

It has been a while, but I used to handle EMS and the autoexec.bat/config.sys myself, will get into it again.

Since Disk Images work fine, I will try a MS Dos Install on an empty VHD, good suggestion!

[Caldor]

Something I noticed is that when using Windows 98 as the DOS basis, then I can get a lot more highmem free. With a pretty solid EMS setup in 6.22 I can get about 592kb free when I have loaded DOS, but with the Windows 98 boot, I have more than 600kb free.

But, its not as compatible as 6.22 though. A good boot menu is the way to go. One for EMS and one for XMS should probably be enough for something like 95% of the games I think.

[Cebion]

Phil has made a phantastic job with his Start Menu where you can select different configurations at start

https://www.philscomputerlab.com/ms-dos ... -pack.html#

[Caldor]

Phil has made a phantastic job with his Start Menu where you can select different configurations at start

https://www.philscomputerlab.com/ms-dos ... -pack.html#

It is a good job, just take note that the MiSTer requires extra settings so his initial setup wont work for EMS. You need to add something like this:
FRAME=E000 D=256 X=A000-C7FF I=C800-EFFF
I think its to ensure it uses the correct memory area.

[Cebion]

We can maybe adjust it for our needs