user: Demonstrate the C code that generates the assembly output below:

```asm
<process_select_module>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edi,%ebx
  mov    %esi,%ebp
  mov    %rdx,%r12
  lea    D45(%rip),%rdi
  call   <puts@plt>
  cmp    %ebp,%ebx
  jge    L5
  movslq %ebx,%rbx
  mov    (%r12,%rbx,8),%rdi
  mov    $0x10,%edx
  mov    $0x0,%esi
  call   <strtoul@plt>
  mov    %rax,%rbx
  cmp    $0xf,%rax
  ja     L43
  mov    $0xffffffff,%edx
  mov    $0x1,%esi
  mov    $0x1,%edi
  call   <crc32@plt>
  mov    %eax,%edx
  movzbl %bl,%edi
  mov    $0x4,%esi
  call   <crc32@plt>
  mov    %rax,%rbp
  mov    $0x4,%esi
  mov    %rbx,%rdi
  call   <reverse_bits@plt>
  mov    %rax,%r12
  mov    $0x20,%esi
  mov    %rbp,%rdi
  call   <reverse_bits@plt>
  mov    %rax,%rbp
  mov    $0xa,%edi
  call   <malloc@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  je     L14
  mov    $0xa,%edx
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  lea    (%r12,%r12,1),%eax
  mov    %ebp,%edx
  shl    $0x5,%edx
  or     %edx,%eax
  or     $0x1,%eax
  mov    %al,(%rbx)
  mov    %rbp,%rax
  shr    $0x3,%rax
  mov    %al,0x1(%rbx)
  mov    %rbp,%rax
  shr    $0xb,%rax
  mov    %al,0x2(%rbx)
  mov    %rbp,%rax
  shr    $0x13,%rax
  mov    %al,0x3(%rbx)
  shr    $0x1b,%rbp
  mov    %bpl,0x4(%rbx)
  mov    $0xa,%edx
  mov    %rbx,%rsi
  lea    D104(%rip),%rdi
  call   <dump_jreg@plt>
  mov    $0x49,%esi
  mov    %rbx,%rdi
  call   <or1ksim_jtag_shift_dr@plt>
  movq   %xmm0,%r12
  mov    $0xa,%edx
  mov    %rbx,%rsi
  lea    D54(%rip),%rdi
  call   <dump_jreg@plt>
  movzbl 0x5(%rbx),%edi
  movzbl 0x6(%rbx),%ebp
  shl    $0x7,%rbp
  mov    %edi,%eax
  shr    %al
  movzbl %al,%eax
  or     %rax,%rbp
  movzbl 0x7(%rbx),%eax
  shl    $0xf,%rax
  or     %rax,%rbp
  movzbl 0x8(%rbx),%eax
  shl    $0x17,%rax
  or     %rax,%rbp
  movzbl 0x9(%rbx),%eax
  shl    $0x1f,%rax
  or     %rax,%rbp
  movzbl 0x4(%rbx),%eax
  shr    $0x5,%al
  shl    $0x3,%edi
  or     %eax,%edi
  and    $0xf,%edi
  mov    $0x4,%esi
  call   <reverse_bits@plt>
  mov    %rax,%r13
  mov    $0x20,%esi
  mov    %rbp,%rdi
  call   <reverse_bits@plt>
  mov    %rax,%r14
  movzbl %r13b,%ebp
  mov    $0xffffffff,%edx
  mov    $0x4,%esi
  mov    %ebp,%edi
  call   <crc32@plt>
  mov    %rax,%r13
  mov    %ebp,%esi
  lea    D6(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  cmp    %r13,%r14
  jne    L49
L16:
  movq   %r12,%xmm0
  lea    D67(%rip),%rdi
  mov    $0x1,%eax
  call   <printf@plt>
  mov    %rbx,%rdi
  call   <free@plt>
  mov    $0x1,%eax
L75:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L5:
  lea    D42(%rip),%rdi
  call   <puts@plt>
  mov    $0x0,%eax
  jmp    L75
L43:
  mov    %rax,%rsi
  lea    D41(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%eax
  jmp    L75
L14:
  lea    D7(%rip),%rdi
  call   <puts@plt>
  mov    $0x0,%eax
  jmp    L75
L49:
  lea    D2(%rip),%rdi
  call   <puts@plt>
  mov    %r14,%rsi
  lea    D91(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    %r13,%rsi
  lea    D88(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  jmp    L16
```

tool_calls: name: retrieve_data
arguments: data_label: D45
data_type: string
name: retrieve_data
arguments: data_label: D104
data_type: string
name: retrieve_data
arguments: data_label: D54
data_type: string
name: retrieve_data
arguments: data_label: D6
data_type: string
name: retrieve_data
arguments: data_label: D67
data_type: string
name: retrieve_data
arguments: data_label: D42
data_type: string
name: retrieve_data
arguments: data_label: D41
data_type: string
name: retrieve_data
arguments: data_label: D7
data_type: string
name: retrieve_data
arguments: data_label: D2
data_type: string
name: retrieve_data
arguments: data_label: D91
data_type: string
name: retrieve_data
arguments: data_label: D88
data_type: string

tool: D45: Selecting module.

tool: D104:   shifting in

tool: D54:   shifted out

tool: D6:   status:       0x%01x


tool: D67:   time taken:   %.12fs


tool: D42: ERROR: no module specified.

tool: D41: ERROR: module value 0x%lx too large


tool: D7: ERROR: malloc for SELECT_MODULE register failed.

tool: D2:   CRC mismatch

tool: D91:     CRC out:      0x%08lx


tool: D88:     CRC computed: 0x%08lx


assistant: ```c
int process_select_module(int next_jreg, int argc, char *argv[]) {
  printf("Selecting module.\n");
  if (next_jreg >= argc) {
    printf("ERROR: no module specified.\n");
    return 0;
  }
  unsigned long int module_id = strtoul(argv[next_jreg], NULL, 16);
  if (module_id > 0xf) {
    printf("ERROR: module value 0x%lx too large\n", module_id);
    return 0;
  }
  unsigned long int crc_in;
  crc_in = crc32(1, 1, 0xffffffff);
  crc_in = crc32(module_id, 4, crc_in);
  module_id = reverse_bits(module_id, 4);
  crc_in = reverse_bits(crc_in, 32);
  int num_bytes = 10;
  unsigned char *jreg = malloc(num_bytes);
  if (NULL == jreg) {
    printf("ERROR: malloc for SELECT_MODULE register failed.\n");
    return 0;
  }
  memset(jreg, 0, num_bytes);
  jreg[0] = 0x01;
  jreg[0] |= module_id << 1;
  jreg[0] |= crc_in << 5;
  jreg[1] = crc_in >> 3;
  jreg[2] = crc_in >> 11;
  jreg[3] = crc_in >> 19;
  jreg[4] = crc_in >> 27;
  dump_jreg("  shifting in", jreg, num_bytes);
  double t = or1ksim_jtag_shift_dr(jreg, 32 + 4 + 32 + 4 + 1);
  dump_jreg("  shifted out", jreg, num_bytes);
  unsigned char status;
  unsigned long int crc_out;
  status = ((jreg[4] >> 5) | (jreg[5] << 3)) & 0xf;
  crc_out = ((unsigned long int)jreg[5] >> 1) | ((unsigned long int)jreg[6] << 7) | ((unsigned long int)jreg[7] << 15) | ((unsigned long int)jreg[8] << 23) | ((unsigned long int)jreg[9] << 31);
  status = reverse_bits(status, 4);
  crc_out = reverse_bits(crc_out, 32);
  unsigned long int crc_computed = crc32(status, 4, 0xffffffff);
  printf("  status:       0x%01x\n", status);
  if (crc_out != crc_computed) {
    printf("  CRC mismatch\n");
    printf("    CRC out:      0x%08lx\n", crc_out);
    printf("    CRC computed: 0x%08lx\n", crc_computed);
  }
  printf("  time taken:   %.12fs\n", t);
  free(jreg);
  return 1;
}
```