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Setting 640480 in ASM

Posted: Fri Aug 02, 2002 2:35 pm
by Matt Carpenter
I realized that you cant use VESA to set the graphics mode in bochs (which I use to test my kernel), so I was wondering how to set the video mode in ASM without interrupts (using the out function). I'm aiming to get 640x480 res. with 256 color if possible

Re:Setting 640480 in ASM

Posted: Fri Aug 02, 2002 3:14 pm
by srg
Can't you use another machine?

BTW I've tried Bochs and personally I thinks its not very good. If possible use another machine or try and get VMWare (even Windows XP runs on VMware but Unix X-Windows doesn't)

Steven Graham

Re:Setting 640480 in ASM

Posted: Sat Aug 03, 2002 1:10 am
by gedeon
Bochs 1.4.1 supports VESA BIOS Extensions, but i have not yet tested it
I use Mondrake 8.2 in a vmware session (1024*768 24 bits depth color) to devellop my os, X-windows work in SVGA mode. Install vmware tools

Re:Setting 640480 in ASM

Posted: Sat Aug 03, 2002 7:06 pm
by K.J.
When it comes to OS development, I use Bochs because of the nice builtin debugger. When it comes to running 2 OSes at once(like win95 and XP), I use VMWare.

K.J.