Load DOS to UMA \ VOGONS

Load DOS to UMA

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First post, by PlaneVuki

Posted on 2020-07-18, 16:25

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Hello,

My hardware specs are: pentium-100, 8mb ram, vga, pc speaker, etc...
My software specs are: ms-dos from 5.0 to 6.22, that's it, no extra drivers or anything.

How can I make ms-dos be loaded in upper memory?

What should my config.sys look like ?

I tried a few combinations I found on internet with no luck, it either took ~64k my conventional or extended or high memory.

notice: I don't want to load it to extended or high memory, only to UMA (above 640kb, below 1mb)

Thanks much in advance.

Reply 1 of 6, by maxtherabbit

Posted on 2020-07-18, 16:40

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short answer: you can't

IBM PC-DOS does support loading some stuff into the UMA with the CONFIG.SYS directive DOSDATA=UMB

Reply 2 of 6, by jakethompson1

Posted on 2020-07-18, 19:55

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Is there a particular reason you don't want to use the HMA that might shed light on another idea to accomplish it?

Reply 3 of 6, by PlaneVuki

Posted on 2020-07-18, 20:49

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ok thanks a lot

Last edited by PlaneVuki on 2020-07-22, 19:38. Edited 1 time in total.

Reply 4 of 6, by jakethompson1

Posted on 2020-07-18, 23:47

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Can you disable any shadowing options in BIOS and perhaps get a 64KB or two?

Reply 5 of 6, by maxtherabbit

Posted on 2020-07-19, 00:22

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I sincerely doubt that 64kB one way or another is going change whether Blood works on your system

Reply 6 of 6, by Jo22

Posted on 2020-07-23, 08:12

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PlaneVuki wrote on 2020-07-18, 16:25:
What should my config.sys look like ? […]
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What should my config.sys look like ?

I tried a few combinations I found on internet with no luck, it either took ~64k my conventional or extended or high memory.

notice: I don't want to load it to extended or high memory, only to UMA (above 640kb, below 1mb)

Thanks much in advance.

Hi, what does it look like now?
There are lots of possibilities for tweaking.

Also, since my knowledge of Blood is little,
maybe the problem is a different one?
Issues with DPMI, for example. Or EMM386 has compatibility issues?
I don't know. Maybe some memory manager (Qemm) can do its magic here.

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