Chapter 4: The Instruction Set Architecture - 10/31/2013 02:13:31 ...
Chapter 4: The Instruction Set Architecture - 10/31/2013 02:13:31 ...
Chapter 4: The Instruction Set Architecture - 10/31/2013 02:13:31 ...
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4-17<br />
<strong>Chapter</strong> 4: <strong>The</strong> <strong>Instruction</strong> <strong>Set</strong> <strong>Architecture</strong><br />
ARC Example Program<br />
• An ARC assembly language program adds two integers:<br />
! This programs adds two numbers<br />
.begin<br />
.org 2048<br />
prog1: ld [x], %r1 ! Load x into %r1<br />
ld [y], %r2 ! Load y into %r2<br />
addcc %r1, %r2, %r3 ! %r3 ← %r1 + %r2<br />
st %r3, [z] ! Store %r3 into z<br />
jmpl %r15 + 4, %r0 ! Return<br />
x: 15<br />
y: 9<br />
z: 0<br />
.end<br />
Principles of Computer <strong>Architecture</strong> by M. Murdocca and V. Heuring<br />
© 1999 M. Murdocca and V. Heuring
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