Hello,<o:p></o:p>
I was looking at the hardware resources assigned to my graphics card and noticed the memory range usually mapped for the video ROM C0000h - C7FFFh was not assigned to the card.<o:p></o:p>
I looked into it and found that the ROM had been disabled. I know the video BIOS isn't used any more as it runs in a 16 bit environment and device drivers are used to access the hardware. What about when Windows is running in an SVGA mode using VESA BIOS Extensions (VBE), for example when loading the splash screen or if a display driver can't be loaded. Doesn't Windows need to use the Video BIOS for this?<o:p></o:p>
I disabled my graphics adapter so that Windows was using the VGASAVE driver and the ROM was still disabled. I'm just wondering how this works?
So basically my questions are does Windows disable the video BIOS and if so how does Windows use the graphics card and VBE in SVGA modes without being able to use the video BIOS?
Any help would be appreciated,
Thanks.
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