user: 这段汇编代码用C语言表示是什么样的：

```asm
<mg_codon2amino>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %esi,%ecx
  mov    %edx,%eax
  mov    %edi,%edx
  mov    %dl,-0x14(%rbp)
  mov    %ecx,%edx
  mov    %dl,-0x18(%rbp)
  mov    %al,-0x1c(%rbp)
  movl   $0x0,-0x4(%rbp)
  movsbl -0x14(%rbp),%eax
  sub    $0x41,%eax
  cmp    $0x34,%eax
  ja     L234
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  lea    D21(%rip),%rax
  mov    (%rdx,%rax,1),%eax
  cltq
  lea    D21(%rip),%rdx
  add    %rdx,%rax
  notrack jmp *%rax
  movl   $0x20,-0x4(%rbp)
  jmp    L77
  movl   $0x10,-0x4(%rbp)
  jmp    L77
  movl   $0x30,-0x4(%rbp)
  jmp    L77
  movl   $0x0,-0x4(%rbp)
  jmp    L77
L234:
  movl   $0x30,-0x4(%rbp)
L77:
  movsbl -0x18(%rbp),%eax
  sub    $0x41,%eax
  cmp    $0x34,%eax
  ja     L147
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  lea    D68(%rip),%rax
  mov    (%rdx,%rax,1),%eax
  cltq
  lea    D68(%rip),%rdx
  add    %rdx,%rax
  notrack jmp *%rax
  addl   $0x8,-0x4(%rbp)
  jmp    L127
  addl   $0x4,-0x4(%rbp)
  jmp    L127
  addl   $0xc,-0x4(%rbp)
  jmp    L127
L147:
  movl   $0xc,-0x4(%rbp)
  jmp    L127
  nop
L127:
  movsbl -0x1c(%rbp),%eax
  cmp    $0x79,%eax
  jg     L102
  cmp    $0x67,%eax
  jge    L229
  cmp    $0x63,%eax
  jg     L102
  cmp    $0x4e,%eax
  jge    L144
  cmp    $0x47,%eax
  je     L53
  cmp    $0x47,%eax
  jg     L102
  cmp    $0x41,%eax
  je     L205
  cmp    $0x43,%eax
  je     L213
  jmp    L102
L229:
  sub    $0x67,%eax
  cmp    $0x12,%eax
  ja     L102
  mov    %eax,%eax
  lea    0x0(,%rax,4),%rdx
  lea    D32(%rip),%rax
  mov    (%rdx,%rax,1),%eax
  cltq
  lea    D32(%rip),%rdx
  add    %rdx,%rax
  notrack jmp *%rax
L144:
  sub    $0x4e,%eax
  mov    $0x1,%edx
  mov    %eax,%ecx
  shl    %cl,%rdx
  mov    %rdx,%rax
  mov    %rax,%rdx
  and    $0x8c1,%edx
  test   %rdx,%rdx
  setne  %dl
  test   %dl,%dl
  jne    L202
  mov    %rax,%rdx
  and    $0x80010,%edx
  test   %rdx,%rdx
  setne  %dl
  test   %dl,%dl
  jne    L205
  and    $0x200000,%eax
  test   %rax,%rax
  setne  %al
  test   %al,%al
  jne    L213
  jmp    L102
L205:
  addl   $0x2,-0x4(%rbp)
  jmp    L218
L213:
  addl   $0x1,-0x4(%rbp)
  jmp    L218
L53:
  addl   $0x3,-0x4(%rbp)
  jmp    L218
L102:
  addl   $0x4,-0x4(%rbp)
  jmp    L218
L202:
  nop
L218:
  mov    -0x4(%rbp),%eax
  lea    D19(%rip),%rdx
  movzbl (%rax,%rdx,1),%eax
  pop    %rbp
  ret
```

assistant: ```c
char mg_codon2amino(char n0, char n1, char n2) {
  static char aminos[] = "FFLLSSSSYY**CC*WLLLLPPPPHHQQRRRR"
                         "IIIMTTTTNNKKSSRRVVVVAAAADDEEGGGGX";
  unsigned int code = 0;
  switch (n0) {
  case 'A':
  case 'a':
    code = 2 << 4;
    break;
  case 'C':
  case 'c':
    code = 1 << 4;
    break;
  case 'G':
  case 'g':
    code = 3 << 4;
    break;
  case 'T':
  case 't':
  case 'U':
  case 'u':
    code = 0 << 4;
    break;
  default:
    code = 3 << 4;
  }
  switch (n1) {
  case 'A':
  case 'a':
    code += 2 << 2;
    break;
  case 'C':
  case 'c':
    code += 1 << 2;
    break;
  case 'G':
  case 'g':
    code += 3 << 2;
    break;
  case 'T':
  case 't':
  case 'U':
  case 'u':
    break;
  default:
    code = 3 << 2;
  }
  switch (n2) {
  case 'A':
  case 'a':
  case 'R':
  case 'r':
    code += 2;
    break;
  case 'C':
  case 'c':
    code += 1;
    break;
  case 'G':
  case 'g':
    code += 3;
    break;
  case 'T':
  case 't':
  case 'U':
  case 'u':
  case 'N':
  case 'n':
  case 'Y':
  case 'y':
    code += 0;
    break;
  default:
    code += 4;
  }
  return aminos[code];
}
```