[ros-kernel] Re: Sharing code with wine + 16 bit support

[Robert C. <rob...@it...>]

----- Original Message -----
From: "Phillip Susi" <ps...@cf...>
To: <ros...@re...>
Sent: Friday, October 26, 2001 3:16 AM
Subject: [ros-kernel] Re: Sharing code with wine + 16 bit support


> Running the 16bit code is not a problem, you just create a 16bit v86
mode
> code segment selector and jump to it.  It's all of the support code
for
> 16bit apps that is difficult.  DOS apps expect to be able to make
interrupt
> calls to dos as well as the bios, and be able to hook interrupts from
> hardware.  They also expect to be able to directly access hardware via
IO
> ports.  Just to support DOS then, we have to write a fake bios, dos,
and
> have the VDM fake interrupts and fake IO port access.  Then for
windows 3.1
> support, you have to basically rewrite all of windows 3.1 to run
inside the
> VDM, so this is not trivial.

Sure. To help though, freeDOS can provide the DOS code, and I'd have
thought bochs now it's under GPL could provide the BIOS emulation - or
at least a large chunk of it.

Rob

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