user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<read_write_test>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x5d0,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    D5(%rip),%eax
  lea    0x1(%rax),%edx
  mov    %edx,D12(%rip)
  cmp    $0x2,%eax
  je     L189
  cmp    $0x2,%eax
  jg     L203
  test   %eax,%eax
  je     L113
  cmp    $0x1,%eax
  je     L91
L203:
  movl   $0x1,D12(%rip)
L113:
  mov    $0x0,%edx
  mov    $0x3,%esi
  mov    $0x3,%edi
  call   <FS460_image_request_freeze@plt>
  jmp    L79
L91:
  movl   $0x0,-0x5c0(%rbp)
  jmp    L157
L45:
  mov    -0x5c0(%rbp),%eax
  mov    %eax,%edx
  mov    -0x5c0(%rbp),%eax
  cltq
  mov    %dl,-0x5b0(%rbp,%rax,1)
  addl   $0x1,-0x5c0(%rbp)
L157:
  mov    -0x5c0(%rbp),%eax
  cmp    $0x59f,%eax
  jbe    L45
  movl   $0x0,-0x5b8(%rbp)
  jmp    L230
L19:
  mov    -0x5b8(%rbp),%eax
  mov    %eax,%edi
  call   <FS460_image_set_begin_field@plt>
  mov    %eax,-0x5b4(%rbp)
  cmpl   $0x0,-0x5b4(%rbp)
  jne    L143
  movl   $0x0,-0x5bc(%rbp)
  jmp    L160
L16:
  lea    -0x5b0(%rbp),%rax
  mov    $0x5a0,%esi
  mov    %rax,%rdi
  call   <FS460_image_set_start_write@plt>
  mov    %eax,-0x5b4(%rbp)
  cmpl   $0x0,-0x5b4(%rbp)
  jne    L123
  movl   $0x0,-0x5c4(%rbp)
  jmp    L149
L130:
  lea    -0x5c4(%rbp),%rax
  mov    %rax,%rdi
  call   <FS460_image_is_transfer_completed@plt>
  mov    %eax,-0x5b4(%rbp)
L149:
  mov    -0x5c4(%rbp),%eax
  test   %eax,%eax
  jne    L123
  cmpl   $0x0,-0x5b4(%rbp)
  je     L130
L123:
  addl   $0x1,-0x5bc(%rbp)
L160:
  cmpl   $0xef,-0x5bc(%rbp)
  jle    L16
L143:
  addl   $0x1,-0x5b8(%rbp)
L230:
  cmpl   $0x1,-0x5b8(%rbp)
  jle    L19
  mov    $0x0,%edi
  call   <FS460_image_get_begin_field@plt>
  mov    %eax,-0x5b4(%rbp)
  cmpl   $0x0,-0x5b4(%rbp)
  jne    L29
  mov    $0x5a0,%edi
  call   <FS460_image_get_start_read@plt>
  mov    %eax,-0x5b4(%rbp)
  cmpl   $0x0,-0x5b4(%rbp)
  jne    L29
  movl   $0x0,-0x5c4(%rbp)
  jmp    L114
L75:
  lea    -0x5c4(%rbp),%rax
  mov    %rax,%rdi
  call   <FS460_image_is_transfer_completed@plt>
  mov    %eax,-0x5b4(%rbp)
L114:
  mov    -0x5c4(%rbp),%eax
  test   %eax,%eax
  jne    L109
  cmpl   $0x0,-0x5b4(%rbp)
  je     L75
L109:
  cmpl   $0x0,-0x5b4(%rbp)
  jne    L29
  lea    -0x5b0(%rbp),%rax
  mov    $0x5a0,%esi
  mov    %rax,%rdi
  call   <FS460_image_get_finish_read@plt>
  mov    %eax,-0x5b4(%rbp)
  jmp    L29
L189:
  mov    $0x0,%edx
  mov    $0x3,%esi
  mov    $0x0,%edi
  call   <FS460_image_request_freeze@plt>
  jmp    L79
L29:
  nop
L79:
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L142
  call   <__stack_chk_fail@plt>
L142:
  leave
  ret
```

assistant: ```c
void read_write_test(void) {
  static int mode = 0;
  switch (mode++) {
  default:
    mode = 1;
  case 0:
    FS460_image_request_freeze(0x0002 | 0x0001, 0x0002 | 0x0001, 0);
    break;
  case 1: {
    char buf[720 * 2];
    int i, j, field;
    int err, completed;
    for (i = 0; i < sizeof(buf); i++) {
      buf[i] = (char)i;
    }
    for (field = 0; field < 2; field++) {
      err = FS460_image_set_begin_field(field);
      if (!err) {
        for (j = 0; j < 240; j++) {
          err = FS460_image_set_start_write(buf, sizeof(buf));
          if (!err) {
            completed = 0;
            while (!completed && !err)
              err = FS460_image_is_transfer_completed(&completed);
          }
        }
      }
    }
    err = FS460_image_get_begin_field(0);
    if (!err) {
      err = FS460_image_get_start_read(sizeof(buf));
      if (!err) {
        completed = 0;
        while (!completed && !err)
          err = FS460_image_is_transfer_completed(&completed);
        if (!err) {
          err = FS460_image_get_finish_read(buf, sizeof(buf));
          if (!err) {
            {} {}
          }
        }
      }
    }
  } break;
  case 2:
    FS460_image_request_freeze(0, 0x0002 | 0x0001, 0);
    break;
  }
}
```