Kevin D. Quitt wrote:
> I'm compiling as follows:
>
> gcc -O2 ck.c -DSHOW=1 libvgagl.a libvga.a ckn.o -o cks
>
> It appears that no I/O writes or reads are taking place.The output from:
>
> outb( 0x14, 0x3D6 ); // Select XR14
>
> stat = inb( 0x3D7 ) & 0x8F; // Enable VSYNC, Retrace, and HSYNC
> outb( stat | 0x50, 0x3D7 );
> fprintf( report, "stat is %0X\n", stat );
>
> is always 0.Are the compiler switches I need?
You don't show the rest of the code - do you set io permissions
correctly? Do you enable chips extensions?
Patrick Mochel <[EMAIL PROTECTED]> wrote:
> What video registers are you trying to access?
>
> According to this book in front of me ("The Undocumented PC" by van
> Gilluwe) those do nothing in relation to standard VGA.
According to my documents, 3d6 is the address for chips and tech
extended registers, so I assume this is the card used.
--
Matan Ziv-Av. [EMAIL PROTECTED]
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