For a function with prototype long reverse_engineer (long a, long b, long c); gcc generates the following assembly code: reverse_engineer: subq %rdi, %rsi imulq %rsi, %rdx movq %rsi, %rax salq $63, %rax sarq $63, %rax orq %rdx, %rax ret Write C code for the function (reverse_engineer that will have an effect equivalent to the assembly code shown.
For a function with prototype long reverse_engineer (long a, long b, long c); gcc generates the following assembly code: reverse_engineer: subq %rdi, %rsi imulq %rsi, %rdx movq %rsi, %rax salq $63, %rax sarq $63, %rax orq %rdx, %rax ret Write C code for the function (reverse_engineer that will have an effect equivalent to the assembly code shown.
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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Transcribed Image Text:For a function with prototype
long reverse_engineer (long a, long b, long c);
gcc generates the following assembly code:
reverse_engineer:
subq %rdi, %rsi
imulq %rsi, %rdx
movq %rsi, %rax
salq $63, %rax
sarq $63, %rax
orq %rdx, %rax
ret
Write C code for the function (reverse_engineer that will have an effect equivalent to the assembly code shown.
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