Question

assembley language in c++ 8086 please

Write a procedure that computes the fibonacci sequence to a given term

Answer 1

X86-64 GCC 7.1 code to print fibonacci series for first n terms :

.LC0:

.string " "

printFibonacciNumbers(int):

push rbp

mov rbp, rsp

sub rsp, 32

mov DWORD PTR [rbp-20], edi

mov DWORD PTR [rbp-4], 0

mov DWORD PTR [rbp-8], 1

cmp DWORD PTR [rbp-20], 0

jle .L5

mov DWORD PTR [rbp-12], 1

.L4:

mov eax, DWORD PTR [rbp-12]

cmp eax, DWORD PTR [rbp-20]

jg .L1

mov eax, DWORD PTR [rbp-8]

mov esi, eax

mov edi, OFFSET FLAT:_ZSt4cout

call std::basic_ostream<char, std::char_traits<char> >::operator<<(int)

mov esi, OFFSET FLAT:.LC0

mov rdi, rax

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 edx, DWORD PTR [rbp-4]

mov eax, DWORD PTR [rbp-8]

add eax, edx

mov DWORD PTR [rbp-16], eax

mov eax, DWORD PTR [rbp-8]

mov DWORD PTR [rbp-4], eax

mov eax, DWORD PTR [rbp-16]

mov DWORD PTR [rbp-8], eax

add DWORD PTR [rbp-12], 1

jmp .L4

.L5:

nop

.L1:

leave

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 .L8

cmp DWORD PTR [rbp-8], 65535

jne .L8

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

.L8:

nop

leave

ret

_GLOBAL__sub_I_printFibonacciNumbers(int):

push rbp

mov rbp, rsp

mov esi, 65535

mov edi, 1

call __static_initialization_and_destruction_0(int, int)

pop rbp

ret

if you like the answer please provide a thumbs up.