On Thu, Aug 14, 2003 at 07:57:21AM -0600, ron minnich wrote:
On Thu, 14 Aug 2003, Meinrad Sauter wrote:
Enabling extended BIOS access Enabling Full ISA Mode Enabling IRQ8 Enabling Mouse IRQ12 on piix4e done. INSTALL REAL-MODE IDT DO THE VGA BIOS found VGA: vid=110b, did=4 0x55 0xaa 0x40 0xea 0xbe 0x31 0x0 0xc0 0x0 0x0 0xc3 0x0 0x14 0x0 0x0 0x0 biosint: # 0x6, eax 0x0 ebx 0xd5b4 ecx 0x720 edx 0xa2f1 biosint: ebp 0x136ac esp 0xff6 edi 0xf6d4 esi 0xfb9fc biosint: ip 0x3 cs 0x0 flags 0x46 biosint: Unsupport int #0x6 biosint: # 0x6, eax 0x0 ebx 0xd5b4 ecx 0x720 edx 0xa2f1 biosint: ebp 0x136ac esp 0xff6 edi 0xf6d4 esi 0xfb9fc biosint: ip 0x3 cs 0x0 flags 0x46 biosint: Unsupport int #0x6 biosint: # 0x6, eax 0x0 ebx 0xd5b4 ecx 0x720 edx 0xa2f1 biosint: ebp 0x136ac esp 0xff6 edi 0xf6d4 esi 0xfb9fc biosint: ip 0x3 cs 0x0 flags 0x46 biosint: Unsupport int #0x6
yes, sorry, you just hit an int we don't support yet. It's all working right, but you'll need to implement int #6.
INT6 is not a BIOS service. It's a CPU exception -- invalid opcode.
At this point we don't have an easy way other than gnireenigne esrever to track this down. And the CS:IP prints here are probably incorrect, so if you go this way you must fix this first (I have a patch for it, but I'm not sure if it's good for other versions of GCC than the one I used).
The other way is to gain legacy compatibility, like BIOS data area, farcall entry points, etc, one by one, until your VGA BIOS happens to work...
-- Takeshi