extern fopen, fclose, fscanf, fprintf, malloc, free
section .data
input_name db "input.txt", 0
output_name db "output.txt", 0
mode_read db "r", 0
mode_write db "w", 0
fmt_in db "%d", 0
fmt_first db "%d", 0
fmt_next db " %d", 0
section .text
global main
main:
push ebp
mov ebp, esp
push ebx
push esi
push edi
sub esp, 28
xor esi, esi
mov dword [esp], input_name
mov dword [esp+4], mode_read
call fopen
mov ebx, eax
read_loop:
mov dword [esp], ebx
mov dword [esp+4], fmt_in
lea eax, [ebp-16]
mov dword [esp+8], eax
call fscanf
cmp eax, 1
jne read_end
mov dword [esp], 8
call malloc
mov edx, eax
mov eax, [ebp-16]
mov [edx], eax
mov dword [edx+4], 0
cmp esi, 0
je insert_head
cmp eax, [esi]
jl insert_head
mov ecx, esi
find_place:
mov edi, [ecx+4]
cmp edi, 0
je insert_after
cmp eax, [edi]
jl insert_after
mov ecx, edi
jmp find_place
insert_head:
mov [edx+4], esi
mov esi, edx
jmp read_loop
insert_after:
mov edi, [ecx+4]
mov [edx+4], edi
mov [ecx+4], edx
jmp read_loop
read_end:
mov dword [esp], ebx
call fclose
mov dword [esp], output_name
mov dword [esp+4], mode_write
call fopen
mov ebx, eax
mov edi, esi
mov dword [ebp-20], 1
print_loop:
cmp edi, 0
je print_end
cmp dword [ebp-20], 1
jne print_next
mov dword [esp], ebx
mov dword [esp+4], fmt_first
mov eax, [edi]
mov dword [esp+8], eax
call fprintf
mov dword [ebp-20], 0
jmp print_advance
print_next:
mov dword [esp], ebx
mov dword [esp+4], fmt_next
mov eax, [edi]
mov dword [esp+8], eax
call fprintf
print_advance:
mov edi, [edi+4]
jmp print_loop
print_end:
mov dword [esp], ebx
call fclose
free_loop:
cmp esi, 0
je finish
mov edi, [esi+4]
mov dword [esp], esi
call free
mov esi, edi
jmp free_loop
finish:
xor eax, eax
add esp, 28
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret