Convert this C++ program to x86 assembly language using the Irvine library: #include <iostream> unsigned int...
Convert this C++ program to x86 assembly language using the Irvine library:
#include <iostream>
unsigned int x;
unsigned int c;
unsigned int result;
// f(x) = 8x + c
// Make sure to push and pop all necessary registers to the stack
to
// ensure only the EAX register is modified upon return from the
function
unsigned int Equation(unsigned int x, unsigned int c)
{
// You CANNOT use the mul or imul operations to perform the
multiplication
return (8 * x) + c;
}
void main()
{
std::cout << "Enter a value for x: ";
std::cin >> x;
std::cout << "Enter a value for c: ";
std::cin >> c;
result = Equation(x, c);
std::cout << "f(x) = " << result <<
std::endl;
system("PAUSE");
}
Homework Answers
x:
.zero 4
c:
.zero 4
result:
.zero 4
Equation(unsigned int, unsigned int):
push rbp
mov rbp, rsp
mov DWORD PTR [rbp-4], edi
mov DWORD PTR [rbp-8], esi
mov eax, DWORD PTR [rbp-4]
lea edx, [0+rax*8]
mov eax, DWORD PTR [rbp-8]
add eax, edx
pop rbp
ret
.LC0:
.string "Enter a value for x: "
.LC1:
.string "Enter a value for c: "
.LC2:
.string "f(x) = "
.LC3:
.string "PAUSE"
main:
push rbp
mov rbp, rsp
mov esi, OFFSET FLAT:.LC0
mov edi, OFFSET FLAT:_ZSt4cout
call std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)
mov esi, OFFSET FLAT:x
mov edi, OFFSET FLAT:_ZSt3cin
call std::basic_istream<char, std::char_traits<char> >::operator>>(unsigned int&)
mov esi, OFFSET FLAT:.LC1
mov edi, OFFSET FLAT:_ZSt4cout
call std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)
mov esi, OFFSET FLAT:c
mov edi, OFFSET FLAT:_ZSt3cin
call std::basic_istream<char, std::char_traits<char> >::operator>>(unsigned int&)
mov edx, DWORD PTR c[rip]
mov eax, DWORD PTR x[rip]
mov esi, edx
mov edi, eax
call Equation(unsigned int, unsigned int)
mov DWORD PTR result[rip], eax
mov esi, OFFSET FLAT:.LC2
mov edi, OFFSET FLAT:_ZSt4cout
call std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)
mov rdx, rax
mov eax, DWORD PTR result[rip]
mov esi, eax
mov rdi, rdx
call std::basic_ostream<char, std::char_traits<char> >::operator<<(unsigned int)
mov esi, OFFSET FLAT:_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_
mov rdi, rax
call std::basic_ostream<char, std::char_traits<char> >::operator<<(std::basic_ostream<char, std::char_traits<char> >& (*)(std::basic_ostream<char, std::char_traits<char> >&))
mov edi, OFFSET FLAT:.LC3
call system
mov eax, 0
pop rbp
ret
__static_initialization_and_destruction_0(int, int):
push rbp
mov rbp, rsp
sub rsp, 16
mov DWORD PTR [rbp-4], edi
mov DWORD PTR [rbp-8], esi
cmp DWORD PTR [rbp-4], 1
jne .L7
cmp DWORD PTR [rbp-8], 65535
jne .L7
mov edi, OFFSET FLAT:_ZStL8__ioinit
call std::ios_base::Init::Init() [complete object constructor]
mov edx, OFFSET FLAT:__dso_handle
mov esi, OFFSET FLAT:_ZStL8__ioinit
mov edi, OFFSET FLAT:_ZNSt8ios_base4InitD1Ev
call __cxa_atexit
.L7:
nop
leave
ret
_GLOBAL__sub_I_x:
push rbp
mov rbp, rsp
mov esi, 65535
mov edi, 1
call __static_initialization_and_destruction_0(int, int)
pop rbp
ret
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public:
Stack() {
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