EBK COMPUTER SYSTEMS
3rd Edition
ISBN: 8220101459107
Author: O'HALLARON
Publisher: YUZU
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Expert Solution & Answer
Chapter 3.11, Problem 3.56PP
A.
Explanation of Solution
Given assembly code:
vmovsd .LC1(%rip), %xmm1
vandpd %xmm1, %xmm0, %xmm0
.LC1:
.long 4294967295
.long 2147483647
.long 0
.long 0
Explanation:
- The 16 bytes starting at “.LC1” forms a mask, the low-order 8 bytes contain all ones.
- The most significant bit denotes a sign bit of double precision value.
- The instruction “vmovsd ...
B.
Explanation of Solution
Given assembly code:
vxorpd %xmm0, %xmm0, %xmm0
Explanation:
- The instruction...
C.
Explanation of Solution
Given assembly code:
vmovsd .LC2(%rip), %xmm1
vxorpd %xmm1, %xmm0, %xmm0
.LC2:
.long 0
.long -2147483647
.long 0
.long 0
Explanation:
- The 16 bytes starting at address “.LC2” forms a mask with a single 1 bit.
- It forms at sign bit position for low order value in XMM register...
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Chapter 3 Solutions
EBK COMPUTER SYSTEMS
Ch. 3.4 - Prob. 3.1PPCh. 3.4 - Prob. 3.2PPCh. 3.4 - Prob. 3.3PPCh. 3.4 - Prob. 3.4PPCh. 3.4 - Prob. 3.5PPCh. 3.5 - Prob. 3.6PPCh. 3.5 - Prob. 3.7PPCh. 3.5 - Prob. 3.8PPCh. 3.5 - Prob. 3.9PPCh. 3.5 - Prob. 3.10PP
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