expr.asm

unix环境下实现的cmm语言编译器

section .text
global main
main:
push ebx
push edx
push ecx
push esi
push edi
push ebp
mov ebp,esp
sub esp, 4
mov ebx, 0
mov edi, 20
mov esi, 5
mov dword  [ebp+-4], 3
mov edx, edi
add edx, esi
mov eax,edi
mov ecx, dword [ebp+-4]
sub esp, 4
mov dword [ebp + -8], edx
cdq
idiv ecx
mov eax,eax
sub esp, 4
mov dword [ebp + -12], eax
mov eax,edi
mov ecx,3
cdq
idiv ecx
mov ecx,edx
mov eax, dword [ebp+-12]
cdq
idiv ecx
mov edx, dword [ebp+-8]
imul eax, edx
sub esp, 4
mov dword [ebp + -16], edx
mov ecx, dword [ebp+-16]
cdq
idiv ecx
mov edx, eax
imul edx, ecx
sub ecx, edx
mov edx, ecx
add edx, ebx
mov ebx, edx
add esp, 12
mov esi, edx
push esi
push ebx
push L2
call printf
add esp, 12
mov eax,0
jmp L1
L1:
mov esp,ebp
pop ebp
pop edi
pop esi
pop ecx
pop edx
pop ebx
ret
extern printf
section .data
align 1
L2:
db 114
db 32
db 61
db 32
db 37
db 100
db 44
db 32
db 98
db 32
db 61
db 32
db 37
db 100
db 10
db 0