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For the (pseudo) assembly code below, replace X, Y, P, and Q with thesmallest set of instructions to save/restore values on the stack and update the stackpointer. Assume that procA and procB were written independently by two differentprogrammers who are following the MIPS guidelines for caller-saved and callee-savedregisters. In other words, the two programmers agree on the input arguments andreturn value of procB, but they can't see the code written by the other person.   procA:$s0 = ...$s1 = ...$s2 = ...$t0 = ...$t1 = ...$t2 = ...X$a0 = ...$a1 = ...jal procBY... = $s1... = $t0... = $t1... = $a0jr $raprocB:P... = $a0... = $a1$s2 = ...$t0 = ...Qjr $ra

For the (pseudo) assembly code below, replace X, Y, P, and Q with thesmallest set of instructions to save/restore values on the stack and update the stackpointer. Assume that procA and procB were written independently by two differentprogrammers who are following the MIPS guidelines for caller-saved and callee-savedregisters. In other words, the two programmers agree on the input arguments andreturn value of procB, but they can't see the code written by the other person.   procA:$s0 = ...$s1 = ...$s2 = ...$t0 = ...$t1 = ...$t2 = ...X$a0 = ...$a1 = ...jal procBY... = $s1... = $t0... = $t1... = $a0jr $raprocB:P... = $a0... = $a1$s2 = ...$t0 = ...Qjr $ra

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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For the (pseudo) assembly code below, replace X, Y, P, and Q with the
smallest set of instructions to save/restore values on the stack and update the stack
pointer. Assume that procA and procB were written independently by two different
programmers who are following the MIPS guidelines for caller-saved and callee-saved
registers. In other words, the two programmers agree on the input arguments and
return value of procB, but they can't see the code written by the other person.

 

procA:
$s0 = ...
$s1 = ...
$s2 = ...
$t0 = ...
$t1 = ...
$t2 = ...
X
$a0 = ...
$a1 = ...
jal procB
Y
... = $s1
... = $t0
... = $t1
... = $a0
jr $ra
procB:
P
... = $a0
... = $a1
$s2 = ...
$t0 = ...
Q
jr $ra

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