Re: [Qemu-devel] qemu vga.c

[Fabrice Bellard <fabrice.bellard@free.fr>]

Johan Rydberg wrote:
> Fabrice Bellard <fabrice.bellard@free.fr> wrote:
> 
> : Modified files:
> : 	.              : vga.c 
> 
> I have not yet had the chanse of testing the VGA code,
> so I wonder: how fast is it?  And does it look good? :)

It is currently fast enough to have a usable PC emulator. Many DOS games 
are usable. It should be faster than the bochs emulation but slightly 
slower than the dosemu one. This VGA emulation code is more accurate 
than either bochs or dosemu (all VGA modes, including non standard ones 
(i.e. the ones not supported by int $0x10) should work), but of course 
more testing is needed.

There are some optimisations pending (VGA memory accesses could be 
faster, but I wanted first to have a simple code). The S3 specific code 
the SVGA emulation is not finished. It will be mainly used to launch X11 
or Windows in high resolution modes. I also have to modify the LGPL'ed 
vga bios to add S3 VESA support.

Fabrice.