Successor Instruction

int equal(int a1, int a2) {

int tsame;

tsame = 0;

if (a1 == a2)

tsame = 1; // only if a1 == a2

return(tsame);

}

main()

{

int x,y,same; // r0 == 0 always

x = 43; // addi $1, $0, 43

y = 2; // addi $2, $0, 2

same = equal(x,y); // need to call function

// other computation

}

Instruction

Fetch

Instruction

Decode

Operand

Fetch

Execute

Result

Store

Next

Instruction

Previous slide

Next slide

Back to first slide

View graphic version