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

[Jakob E. <ja...@vm...>]

On Thu, Oct 25, 2001 at 01:16:58PM -0400, Phillip Susi wrote:
> 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.
> 
> At 06:44 PM 10/25/2001 +0200, you wrote:
> Right. Emulation of 16 bit code should be fairly trivial, anyway, since 
> it's mostly a feature of the Intel architecture
> 

Could not this wait for later? There is 16-bit windows support in wine
and there is FreeDOS. Sometime in the distant future this could surely
be integrated into ReactOS?


jakob


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