Consider the following two functions: funA: movq $0x5, %rax leaq (%rax, %rax), %rax retq funB: movq $5, %rax addq %rax, %rax retq What is true about these two functions? A. funA returns the value of memory stored at the address in rax, funB returns 10 B. funA returns the value of memory stored at the address (2*rax), funB returns 10 C. funA and funB move different immediates into rax D. funA and funB both return 5 O E. funA and funB both return 10

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
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Consider the following two functions:
funA:
movq $0x5, %rax
leaq (%rax, %rax),
retq
funB:
movq $5, %rax
addq %rax, %rax
retq
%rax
What is true about these two functions?
A. funA returns the value of memory stored at the address in rax, funB returns 10
B. funA returns the value of memory stored at the address (2*rax), funB returns 10
C. funA and funB move different immediates into rax
D. funA and funB both return 5
O E. funA and funB both return 10
Transcribed Image Text:Consider the following two functions: funA: movq $0x5, %rax leaq (%rax, %rax), retq funB: movq $5, %rax addq %rax, %rax retq %rax What is true about these two functions? A. funA returns the value of memory stored at the address in rax, funB returns 10 B. funA returns the value of memory stored at the address (2*rax), funB returns 10 C. funA and funB move different immediates into rax D. funA and funB both return 5 O E. funA and funB both return 10
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