1[bits 64]
2xchg ax, ax
3xchg ax, bx
4xchg bx, ax
5xchg eax, eax
6xchg eax, ebx
7xchg ebx, eax
8xchg rax, rax
9xchg rax, rbx
10xchg rbx, rax
11
12xchg al, al
13xchg al, r8b
14xchg r8b, al
15
16xchg ax, ax
17xchg ax, r8w
18xchg r8w, ax
19xchg ax, r9w
20xchg r9w, ax
21
22xchg eax, eax
23xchg eax, r8d
24xchg r8d, eax
25xchg eax, r9d
26xchg r9d, eax
27
28xchg rax, rax
29xchg rax, r8
30xchg r8, rax
31xchg rax, r9
32xchg r9, rax
33