[ros-dev] DOS Subsystem.

[David Johnson]

So you want OpenGEM 5 to replace DosShell?

On 11/28/05, Jerry <crashfourit at gmail.com> wrote:
>
> I'm interested in starting to code the DOS subsystem.
>
> So I am going to list some possible design principles:
>
> Avoid excessive switching from V86 mode and Protected mode.
> Limit direct access to system hardware by DOS programs (especially IO).
> Must differentiate CPU exceptions and Software interrupts.
> Each DOS process would have its own private first Megabyte of Memory.
> At least DPMI v. 0.9 support.
> Dos API support (Including Long File Name support.)
>
> Possible design additions:
> Native handling of DJGPP DPMI programs (I.E. skip DJGPP stub-loader and
> jump directly to the DJGPP COFF image).
> Open GEM <http://gem.shaneland.co.uk/> GUI API Support.
> Bios and Video ROM virtualization.
>
> Additions, subtractions, modifications, or comments anyone?
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>
>


--
David Johnson
http://www.davefilms.us
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