1 .global supersum
 2
 3 supersum:
 4     xor %edx, %edx // буфер для промежуточной суммы
 5     cmp %esi, %edi
 6     jle swap
 7     push %ebx
 8     mov $-1, %ebx
 9     jmp put
10
11 put:
12     xor %edx, %edx
13     inc %ebx
14     cmp %ebx, %esi
15     jle loop
16     movb (%eax, %ebx, 1), %dl
17     movb %dl, (%ecx, %ebx, 1)
18     jmp loop
19
20 loop:
21     inc %eax
22     cmp %eax, %edi
23     jg add_remain
24     addw (%ecx, %eax, 1), %dx
25     addw (%ebx, %eax, 1), %dx
26     mov %dl, (%ecx, %eax, 1)
27     mov %dh, %dl
28     xor %dh, %dh
29     jmp loop
30
31 swap:
32     xchg %eax, %ebx
33     xchg %esi, %edi
34     jmp supersum
35
36 add_remain:
37     addw (%ecx, %eax, 1), %dx
38     mov %dl, (%ecx, %eax, 1)
39     mov %dh, %dl
40     xor %dh, %dh
41     cmp $0, %dl
42     jnz loop
43
44 call_ret:
45     mov (%esp), %ebx
46     ret
47