Which of the following snippets of MIPS assembly code implements the following C++ code fragment: if (x > y) z = x - y else z = y - x You may assume that x, y, and z map to the registers $t0, $t1, and $t2. ble $t0, $t1, foo sub $t2, $t0, $t1 b bar foo: sub $t2, $t1, $t0 bar: bgt $t0, $t1 sub $t2, $t0, $t1 b bar else: sub $t2, $t1, $t0 bar: ble $t0, $t1, foo sub $t2, $t0, $t1 foo: sub $t2, $t1, $t0 bgt $t0, $t1, foo sub $t2, $t0, $t1 b bar foo: sub $t2, $t1, $t0 ba
Which of the following snippets of MIPS assembly code implements the following C++ code fragment: if (x > y) z = x - y else z = y - x You may assume that x, y, and z map to the registers $t0, $t1, and $t2. ble $t0, $t1, foo sub $t2, $t0, $t1 b bar foo: sub $t2, $t1, $t0 bar: bgt $t0, $t1 sub $t2, $t0, $t1 b bar else: sub $t2, $t1, $t0 bar: ble $t0, $t1, foo sub $t2, $t0, $t1 foo: sub $t2, $t1, $t0 bgt $t0, $t1, foo sub $t2, $t0, $t1 b bar foo: sub $t2, $t1, $t0 ba
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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Question
Which of the following snippets of MIPS assembly code implements the following C++ code fragment:
if (x > y)
z = x - y
else
z = y - x
You may assume that x, y, and z map to the registers $t0, $t1, and $t2.
ble $t0, $t1, foo
sub $t2, $t0, $t1
b bar
foo:
sub $t2, $t1, $t0
bar:
bgt $t0, $t1
sub $t2, $t0, $t1
b bar
else:
sub $t2, $t1, $t0
bar:
ble $t0, $t1, foo
sub $t2, $t0, $t1
foo:
sub $t2, $t1, $t0
bgt $t0, $t1, foo
sub $t2, $t0, $t1
b bar
foo:
sub $t2, $t1, $t0
bar:
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