he portion of the generated assembly code implementing the C function int (int x, int y, int z) is as follows: Based on this assembly code, fill in the missing portions of the C code. Verify your answer using

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
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The portion of the generated assembly code implementing the C function int (int x, int y, int z) is as follows: Based on this assembly code, fill in the missing portions of the C code. Verify your answer using gcc compiler. Note: x in %edi, y in %esi, z in %edx.

func (int, int, int):
pushq
%rbp
movq
%rsp, %rbp
movl
%edi, -20(%rbp)
movl
%esi, -24(%rbp)
movl
%edx, -28(%rbp)
movl
-20 ( %rbp), %edx
movl
-24 ( %rbp), %eax
addl
$edx, %eaх
$11, %eax
Fill in this c code based on the assembly code:
addl
movl
Веax, -4 (8rbp)
movl
-4 ( %rbp), %eax
Int func(int x, int y, int z){
subl
$4, %eax
movl
веах, -8(8rbp)
}
int main(){
}
movl
-8 ( %rbp), %eax
popq
%rbp
ret
main:
pushq
%rbp
movq
%rsp, %rbp
subq
$16, %rsp
movl
$3, %edx
movl
$2, %esi
movl
$1, %edi
call
func(int, int, int)
movl
%eax, -4(%rbp)
movl
$0, %eax
leave
ret
Transcribed Image Text:func (int, int, int): pushq %rbp movq %rsp, %rbp movl %edi, -20(%rbp) movl %esi, -24(%rbp) movl %edx, -28(%rbp) movl -20 ( %rbp), %edx movl -24 ( %rbp), %eax addl $edx, %eaх $11, %eax Fill in this c code based on the assembly code: addl movl Веax, -4 (8rbp) movl -4 ( %rbp), %eax Int func(int x, int y, int z){ subl $4, %eax movl веах, -8(8rbp) } int main(){ } movl -8 ( %rbp), %eax popq %rbp ret main: pushq %rbp movq %rsp, %rbp subq $16, %rsp movl $3, %edx movl $2, %esi movl $1, %edi call func(int, int, int) movl %eax, -4(%rbp) movl $0, %eax leave ret
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