user: What is the c source code of the assembly code below:

```asm
<hex_to_base4>:
  endbr64
  push   %r15
  lea    D153(%rip),%r15
  push   %r14
  lea    D176(%rip),%r14
  push   %r13
  xor    %r13d,%r13d
  push   %r12
  lea    D63(%rip),%r12
  push   %rbp
  mov    %rsi,%rbp
  xor    %esi,%esi
  push   %rbx
  mov    %rdi,%rbx
  mov    %rbp,%rdi
  sub    $0x8,%rsp
  call   <memset@plt>
  nopw   0x0(%rax,%rax,1)
L29:
  mov    %rbx,%rdi
  call   <strlen@plt>
  cmp    %r13d,%eax
  jle    L66
  movzbl (%rbx,%r13,1),%eax
  sub    $0x30,%eax
  cmp    $0x36,%al
  ja     L79
  movzbl %al,%eax
  movslq (%r12,%rax,4),%rax
  add    %r12,%rax
  notrack jmp *%rax
  cs nopw 0x0(%rax,%rax,1)
L66:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nop
L79:
  mov    %r15,%rdi
  call   <printf@plt>
  nopl   0x0(%rax,%rax,1)
L31:
  add    $0x1,%r13
  jmp    L29
  cs nopw 0x0(%rax,%rax,1)
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   (%rax)
  lea    D171(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D91(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D60(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D115(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D92(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D32(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D149(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D118(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D135(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D94(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D139(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D22(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D33(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D164(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
  nopl   0x0(%rax)
  lea    D112(%rip),%rsi
  mov    %rbp,%rdi
  call   <strcat@plt>
  jmp    L31
```

tool_calls: name: disassemble_data
arguments: tag: D153
type_guessed: string
name: disassemble_data
arguments: tag: D176
type_guessed: string
name: disassemble_data
arguments: tag: D171
type_guessed: string
name: disassemble_data
arguments: tag: D91
type_guessed: string
name: disassemble_data
arguments: tag: D60
type_guessed: string
name: disassemble_data
arguments: tag: D115
type_guessed: string
name: disassemble_data
arguments: tag: D92
type_guessed: string
name: disassemble_data
arguments: tag: D32
type_guessed: string
name: disassemble_data
arguments: tag: D149
type_guessed: string
name: disassemble_data
arguments: tag: D118
type_guessed: string
name: disassemble_data
arguments: tag: D135
type_guessed: string
name: disassemble_data
arguments: tag: D94
type_guessed: string
name: disassemble_data
arguments: tag: D139
type_guessed: string
name: disassemble_data
arguments: tag: D22
type_guessed: string
name: disassemble_data
arguments: tag: D33
type_guessed: string
name: disassemble_data
arguments: tag: D164
type_guessed: string
name: disassemble_data
arguments: tag: D112
type_guessed: string

tool: D153: Some wierd number is in the key 


tool: D176: 33

tool: D171: 32

tool: D91: 31

tool: D60: 30

tool: D115: 23

tool: D92: 22

tool: D32: 21

tool: D149: 20

tool: D118: 13

tool: D135: 12

tool: D94: 11

tool: D139: 10

tool: D22: 03

tool: D33: 02

tool: D164: 01

tool: D112: 00

assistant: ```c
void hex_to_base4(char *hexstr, char *base4str, size_t b4slen) {
  int i = 0;
  memset(base4str, 0, b4slen);
  for (i = 0; i < strlen(hexstr); i++) {
    switch (hexstr[i]) {
    case '0':
      strcat(base4str, "00");
      break;
    case '1':
      strcat(base4str, "01");
      break;
    case '2':
      strcat(base4str, "02");
      break;
    case '3':
      strcat(base4str, "03");
      break;
    case '4':
      strcat(base4str, "10");
      break;
    case '5':
      strcat(base4str, "11");
      break;
    case '6':
      strcat(base4str, "12");
      break;
    case '7':
      strcat(base4str, "13");
      break;
    case '8':
      strcat(base4str, "20");
      break;
    case '9':
      strcat(base4str, "21");
      break;
    case 'a':
      strcat(base4str, "22");
      break;
    case 'b':
      strcat(base4str, "23");
      break;
    case 'c':
      strcat(base4str, "30");
      break;
    case 'd':
      strcat(base4str, "31");
      break;
    case 'e':
      strcat(base4str, "32");
      break;
    case 'f':
      strcat(base4str, "33");
      break;
    default:
      printf("Some wierd number is in the key \n");
      break;
    }
  }
}
```