Jeff Garzik wrote:
Massimo Dentico wrote:
"Ronald G. Minnich" wrote:
If someone has the *code* example for calling the vga init on a vga card I could use it.
Sorry for the delay. No distractions this time, only assembly code for swithing video modes. ;-) This work, at least for me. Obviously, I'm not writing BIOS usually :o) .. so, I don't know if it lacks something for functioning as part of firmware.
Thanks for posting code, unfortunately this code does not call the VGA BIOS to initialize the video card -- this code directly programs the VGA registers to switch modes, just like vga16fb in the Linux kernel.
BIOS init must have already executed in order for this code to work.
Regards,
Jeff
Ops .. an error due to my scarce knowledge of PC hardware and this phrase on the Linux BIOS home page: ".. simple VGA capability up WITHOUT a VGA BIOS ..". So, is there an absolutely necessary initialization phase that precede the setting of a video mode? To switch a video mode requires the setting of dozens of registers .. I hope that the init phase isn't so complicated. Sorry again, my intention was only to help. Best regard. -- Massimo Dentico - To unsubscribe: send mail to majordomo@freiburg.linux.de with 'unsubscribe openbios' in the body of the message