problem going into mode 13h

I'm having a problem going into mode 13h with dev-c++. The program compiles fine but when I execute it a BSOD pops up and says
"A fatal exception OD has occurred at 0028:C0002ABC in VxD VMM(01) + 00001ABC. The current application will be terminated. "
Heres my code
#include <windows.h>

int main()
{
asm("mov $0x13, %ax");
asm("int $0x10");

Sleep(3000);

asm("mov $0x03, %ax");
asm("int $0x10");

return 0;
}

can anyone help.

You cannot enter mode 13h from WIndows unless you use an API like DirectDraw to enter screenmode 320x200x8. And that's not 13h as most people know it. In order to do what you're really trying to do, you have to use a DOS compiler, like DJGPP (what I use) or Borland (what most people seem to use).

if you're DOS-ing... yes, go with DJGPP... it gives you memory freedom with it's 32-bit extending... ie, calloc (8 * 1024 * 1024) all you want... i don't know even if Borland has conventions for 32-bit extended DOS. i've heard of WatCom C++, but haven't ever used it. also, DJGPP has tons of good resources on the 'net you can use to broaden your horizons... i'm not a sales rep for them or anything... [realizes irony of having a 'sales' rep for a free compiler...] but i say it just fits me really well...

hth...

its not the code its windows.

i have had the same problem

i presume you are using the GNU compiler due to your asm syntax

if you try borland its

asm mov ax, 013h
asm int 10h

but i dont know whats wrong, asm code compiled with masm and tasm works even though its the same!

speed is not critical for a reso-change, use an api

use asm for a putpixel, getpixel combo

UncleG

use this:
dos.h

void SetVGA()
{
_AX = 0x0013;
geninterrupt (0x10);
}

But U need BGI mode to do this.. and these graphics are very bad and low!!! But I dont care

The graphics are not very good and there is not a lot of literature to study because these libraries are unsupported. Not even the new operating systems support 13h graphics libraries.