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Saturday, June 21, 2008

How to change tha size of keyboard buffer?

How to change tha size of keyboard buffer?
One of the guy asked me this question here's your solution Prashant......

Question: How to change the size of keyboard buffer from 32 bytes to 16 bytes in C language........plzzzz help me .....

Solution: Try this....

void main(void){

void far * ptrHead = (void far *)0x00400080;
void far * ptrTail = (void far *)0x00400082;

printf("Head = %.4x, Tail = %.4x\n", *((unsigned int far *)ptrHead), *((unsigned int far *)ptrTail));

*((unsigned int far *)ptrTail) = *((unsigned int far *)ptrTail) - 0x10;

printf("Head = %.4x, Tail = %.4x", *((unsigned int far *)ptrHead), *((unsigned int far *)ptrTail));

}

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