The assembly language code of the x86-64 machine is shown below. obtained by compiling a C language program with the icc 13 compiler. 3.1. Specify addressing mode of all operands of command line 3 and 5. 3.2. To execute the command line 3 and 5, how many times must the processor access the memory to obtain the value of operands come in the order 3 5 3.3. Write the source code in C language. square: push 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Addressing mode of Addressing mode of the left operand the right operand main: mov sub mov mov imul leave ret push mov sub mov mov mov call mov mov mov mov leave ret rbp rbp, rsp rsp, 16 Number of accesses rbp rbp, rsp to memory DWORD PTR [-16+rbp], edi eax, DWORD PTR [-16+rbp] eax, DWORD PTR [-16+rbp] rsp, 16 DWORD PTR [-16+rbp], 10 eax, DWORD PTR [-16+rbp] edi, eax square DWORD PTR [-12+rbp], eax eax, DWORD PTR [-12+rbp] DWORD PTR [-8+rbp], eax eax, 0

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 assembly language code of the x86-64 machine is shown below. obtained by
compiling a C language program with the icc 13 compiler.
3.1. Specify addressing mode of all operands of command line 3 and 5.
3.2. To execute the command line 3 and 5, how many times must the processor access the
memory to obtain the value of operands come in
the order
Addressing mode of
Addressing mode of
Number of accesses
the left operand
the right operand
to memory
3
3.3. Write the source code in C language.
rbp
rbp, rsp
1
square: push
2
mov
sub
rsp, 16
DWORD PTR [-16+rbp], edi
DWORD PTR [-16+rbp]
eax, DWORD PTR [-16+rbp]
mov
5
mov
еax,
imul
7
leave
8
ret
main:
push
rbp
10
rbp, rsp
mov
rsp, 16
DWORD PTR [-16+rbp], 10
eax, DWORD PTR [-16+rbp]
edi, eax
11
sub
12
mov
13
mov
14
mov
15
call
square
DWORD PTR [-12+rbp], eax
eax, DWORD PTR [-12+rbp]
DWORD PTR [-8+rbp], eax
16
mov
17
mov
18
mov
19
mov
еах, 0
20
leave
21
ret
Transcribed Image Text:The assembly language code of the x86-64 machine is shown below. obtained by compiling a C language program with the icc 13 compiler. 3.1. Specify addressing mode of all operands of command line 3 and 5. 3.2. To execute the command line 3 and 5, how many times must the processor access the memory to obtain the value of operands come in the order Addressing mode of Addressing mode of Number of accesses the left operand the right operand to memory 3 3.3. Write the source code in C language. rbp rbp, rsp 1 square: push 2 mov sub rsp, 16 DWORD PTR [-16+rbp], edi DWORD PTR [-16+rbp] eax, DWORD PTR [-16+rbp] mov 5 mov еax, imul 7 leave 8 ret main: push rbp 10 rbp, rsp mov rsp, 16 DWORD PTR [-16+rbp], 10 eax, DWORD PTR [-16+rbp] edi, eax 11 sub 12 mov 13 mov 14 mov 15 call square DWORD PTR [-12+rbp], eax eax, DWORD PTR [-12+rbp] DWORD PTR [-8+rbp], eax 16 mov 17 mov 18 mov 19 mov еах, 0 20 leave 21 ret
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