MiSTer FPGA Forum

Posted: **Tue Dec 22, 2020 8:16 am**

Hi all,

Sorry if this has been solved and updated somewhere. I've seen some threads with different memory configurations in old posts like viewtopic.php?t=955, but I would like to lknow if there is some official recomendations for max stability/compatibility on DOS 6.22 and DOS 7.1.

My current EMM386 line:

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

Had to change the suggested one (Simcity2000 crashed after some time):

EMM386.EXE RAM 8192 FRAME=D000 D=256 I=C800-CDFF X=CE00-CFFF I=D000-EFFF

Best,

Posted: **Tue Dec 22, 2020 10:01 am**

hi

i use DEVICEHIGH=C:\DOS\EMM386.EXE RAM FRAME=E000 D=256 X=A000-CFFF X=CE00-CFFF I=D000-EFFF

i attach my config.sys if you want to check

Posted: **Tue Dec 22, 2020 1:34 pm**

You have to have more than one configuration. Some games need EMS some need XMS and some games needs you to focus on one of the two to be able to run.

Posted: **Mon Sep 06, 2021 8:08 pm**

Lu's guide worked really well for me: https://www.youtube.com/watch?v=tSqGTil-N38

He uses Phil's MS-DOS starter pack which is a really nice config - https://www.philscomputerlab.com/ms-dos ... -pack.html

Posted: **Thu Sep 23, 2021 11:06 am**

I've seen people use FRAME=E000 and FRAME=D000, is there a "correct" one?

MiSTer FPGA Forum

[CONFIG.SYS] Proper memory configuration AO486 DOS 6.2/7.1 for max stability/compatibility

[CONFIG.SYS] Proper memory configuration AO486 DOS 6.2/7.1 for max stability/compatibility

Re: [CONFIG.SYS] Proper memory configuration AO486 DOS 6.2/7.1 for max stability/compatibility

Re: [CONFIG.SYS] Proper memory configuration AO486 DOS 6.2/7.1 for max stability/compatibility

Re: [CONFIG.SYS] Proper memory configuration AO486 DOS 6.2/7.1 for max stability/compatibility

Re: [CONFIG.SYS] Proper memory configuration AO486 DOS 6.2/7.1 for max stability/compatibility