On Sat, 2002-12-14 at 15:45, Steve M. Gehlbach wrote:
The very first instructions are in ipl.S for SiS chipsets. These codes are used to initialize the DRAM and some other (highly) critical registers in north/south bridge.
ollie lho ollie@sis.com.tw
Good point, I forgot about ipl.S. For the vga code for the sis630, I translated ipl.S to 32-bit code and put it in the crt0.s stack. Required a few changes, but seems to work fine and the code is more continuous.
Not sure how or if this should be integrated into the code base, but this is how the vga was done for the sis630.
What VGA code ?? The VGA bios emulation stuff in the freebios tree ?? How does moving ipl.S to 32-bit have anything to do with VGA ??