user: 这段汇编代码用C语言表示是什么样的?

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
L17:
  lea    D52(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    $0x0,%eax
  call   <getchar@plt>
  mov    %eax,-0xc(%rbp)
  mov    $0x0,%eax
  call   <getchar@plt>
  cmpl   $0x30,-0xc(%rbp)
  je     L16
  cmpl   $0x31,-0xc(%rbp)
  jne    L17
L16:
  subl   $0x30,-0xc(%rbp)
  lea    D1(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D47(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D104(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D58(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D46(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D71(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D74(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D101(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    -0xc(%rbp),%eax
  mov    %eax,%esi
  lea    D121(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D122(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D45(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  mov    $0x0,%eax
  call   <getchar@plt>
  mov    $0x0,%eax
  call   <setup_io@plt>
  mov    $0x0,%eax
  call   <setup_gpio@plt>
  mov    $0x0,%eax
  call   <setup_spi@plt>
  movl   $0x0,-0x14(%rbp)
  jmp    L31
L65:
  mov    -0xc(%rbp),%eax
  mov    %eax,%edi
  call   <read_adc@plt>
  mov    %eax,-0x8(%rbp)
  mov    -0x8(%rbp),%eax
  sar    $0x4,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x8(%rbp),%eax
  mov    %eax,%esi
  lea    D92(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movl   $0x0,-0x10(%rbp)
  jmp    L70
L58:
  mov    $0x23,%edi
  call   <putchar@plt>
  addl   $0x1,-0x10(%rbp)
L70:
  mov    -0x10(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  jl     L58
  movl   $0x0,-0x10(%rbp)
  jmp    L25
L48:
  mov    $0x20,%edi
  call   <putchar@plt>
  addl   $0x1,-0x10(%rbp)
L25:
  mov    $0x40,%eax
  sub    -0x4(%rbp),%eax
  cmp    %eax,-0x10(%rbp)
  jl     L48
  mov    $0xd,%edi
  call   <putchar@plt>
  mov    $0x0,%eax
  call   <short_wait@plt>
  addl   $0x1,-0x14(%rbp)
L31:
  cmpl   $0x1869f,-0x14(%rbp)
  jle    L65
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    $0x0,%eax
  call   <restore_io@plt>
  nop
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: label: D52
data_type: string
name: extract_symbolic_data
arguments: label: D1
data_type: string
name: extract_symbolic_data
arguments: label: D47
data_type: string
name: extract_symbolic_data
arguments: label: D104
data_type: string
name: extract_symbolic_data
arguments: label: D58
data_type: string
name: extract_symbolic_data
arguments: label: D46
data_type: string
name: extract_symbolic_data
arguments: label: D71
data_type: string
name: extract_symbolic_data
arguments: label: D74
data_type: string
name: extract_symbolic_data
arguments: label: D101
data_type: string
name: extract_symbolic_data
arguments: label: D121
data_type: string
name: extract_symbolic_data
arguments: label: D122
data_type: string
name: extract_symbolic_data
arguments: label: D45
data_type: string
name: extract_symbolic_data
arguments: label: D92
data_type: string

tool: D52: Which channel do you want to test? Type 0 or 1.

tool: D1: These are the connections for the analogue to digital test:

tool: D47: jumper connecting GP11 to SCLK

tool: D104: jumper connecting GP10 to MOSI

tool: D58: jumper connecting GP9 to MISO

tool: D46: jumper connecting GP8 to CSnA

tool: D71: Potentiometer connections:

tool: D74:   (call 1 and 3 the ends of the resistor and 2 the wiper)

tool: D101:   connect 3 to 3V3

tool: D121:   connect 2 to AD%d


tool: D122:   connect 1 to GND

tool: D45: When ready hit enter.

tool: D92: %04d 

assistant: ```c
void main(void) {
  int r, v, s, i, chan;
  do {
    printf("Which channel do you want to test? Type 0 or 1.\n");
    chan = (int)getchar();
    (void)getchar();
  } while (chan != '0' && chan != '1');
  chan = chan - '0';
  printf("These are the connections for the analogue to digital test:\n");
  printf("jumper connecting GP11 to SCLK\n");
  printf("jumper connecting GP10 to MOSI\n");
  printf("jumper connecting GP9 to MISO\n");
  printf("jumper connecting GP8 to CSnA\n");
  printf("Potentiometer connections:\n");
  printf("  (call 1 and 3 the ends of the resistor and 2 the wiper)\n");
  printf("  connect 3 to 3V3\n");
  printf("  connect 2 to AD%d\n", chan);
  printf("  connect 1 to GND\n");
  printf("When ready hit enter.\n");
  (void)getchar();
  setup_io();
  setup_gpio();
  setup_spi();
  for (r = 0; r < 100000; r++) {
    v = read_adc(chan);
    s = v >> 4;
    printf("%04d ", v);
    for (i = 0; i < s; i++)
      putchar('#');
    for (i = 0; i < 64 - s; i++)
      putchar(' ');
    putchar(0x0D);
    short_wait();
  }
  printf("\n");
  restore_io();
}
```