Video memory access under DPMI

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salceson

Joined: 20 Jun 2009
Posts: 2

salceson 20 Jun 2009, 12:18

How to get video memory address to draw under DPMI, 32-bit protected mode? The video mode is 13h (320x200x8). I tried 0A0000, but it didn't work.

20 Jun 2009, 12:18

DOS386

Joined: 08 Dec 2006
Posts: 1900

DOS386 20 Jun 2009, 13:00

salceson wrote:

How to get video memory address to draw under DPMI, 32-bit protected mode? The video mode is 13h (320x200x8). I tried 0A0000, but it didn't work.

BUG symptoms ???

$000A'0000 is correct. Make sure your segment is ZERO-based (USEDPMI.ASM isn't). Also, check the sticky thread on the top and examples linked from there, is case of further trouble post offending code.

20 Jun 2009, 13:00

salceson

Joined: 20 Jun 2009
Posts: 2

salceson 20 Jun 2009, 18:23

Thanks. I forgot about the segment.

20 Jun 2009, 18:23

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