maxline.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, 2000
mov esi, 0
jmp L3
L2:
cmp edi,esi
jle near L3
mov esi, edi
mov ebx, ebp
add ebx, -1000
push ebx
mov edx, ebp
add edx, -2000
push edx
call copy
add esp, 8
L3:
push 1000
mov ebx, ebp
add ebx, -1000
push ebx
call getline
add esp, 8
mov edi, eax
cmp eax,0
jg near L2
cmp esi,0
jle near L7
mov ebx, ebp
add ebx, -2000
push ebx
push L9
call printf
add esp, 8
L7:
mov eax,0
jmp L1
L1:
mov esp,ebp
pop ebp
pop edi
pop esi
pop ecx
pop edx
pop ebx
ret
global copy
copy:
push ebx
push edx
push ecx
push esi
push edi
push ebp
mov ebp,esp
mov edi, 0
jmp L12
L11:
mov esi, edi
add esi, 1
mov edi, esi
L12:
mov esi, dword [ebp+28]
mov ebx, edi
add ebx, esi
mov esi, dword [ebp+32]
mov edx, edi
add edx, esi
mov dl,byte  [edx]
mov byte  [ebx], dl
movsx esi,dl
cmp esi,0
jne near L11
L10:
mov esp,ebp
pop ebp
pop edi
pop esi
pop ecx
pop edx
pop ebx
ret
extern printf
extern getline
section .data
align 1
L9:
db 37
db 115
db 0