86-DOS running on a PC

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xelloss
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86-DOS running on a PC

Post by xelloss »

Michal Necasek has managed to put together a version of 86-DOS 1.0 that will run on an (IBM or compatible) PC.
It uses the pre-release PC-DOS IBMBIO along with some small patches to the 86-DOS kernel.

Remember that PC-DOS 1.0 is an OEM release of 86-DOS 1.14, so this is the most ancient DOS version to ever run on a PC.

https://www.os2museum.com/wp/pc-86-dos/

Enjoy!

ToMi1
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Re: 86-DOS running on a PC

Post by ToMi1 »

That's interesting indeed. Is it able to run on an emulator like 86Box or PCem?

xelloss
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Re: 86-DOS running on a PC

Post by xelloss »

ToMi1 wrote:
Fri Sep 03, 2021 8:08 pm
That's interesting indeed. Is it able to run on an emulator like 86Box or PCem?
I haven't checked myself yet, but it should.

tarquin44
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Re: 86-DOS running on a PC

Post by tarquin44 »

Yes, it runs in 86Box.

daarch
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Re: 86-DOS running on a PC

Post by daarch »

Quite an achievement.

In case someone else wants to try it under Qemu, the image must be patched to include the 0xAA55 signature at the end of the boot sector to be usable there.

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