user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<do_smbus_read_byte>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edi,%ebx
  mov    %esi,%ebp
  mov    %edx,%r12d
  call   <smbus_check_stop_condition@plt>
  test   %rax,%rax
  jne    L22
  mov    %ebx,%edi
  call   <smbus_start_condition@plt>
  test   %rax,%rax
  jne    L58
  lea    0x0(%rbp,%rbp,1),%esi
  movzbl %sil,%esi
  mov    %ebx,%edi
  call   <smbus_send_slave_address@plt>
  test   %rax,%rax
  jne    L71
  mov    $0x1,%esi
  mov    %ebx,%edi
  call   <smbus_ack@plt>
  movzbl %r12b,%esi
  mov    %ebx,%edi
  call   <smbus_send_command@plt>
  test   %rax,%rax
  jne    L33
  mov    %ebx,%edi
  call   <smbus_start_condition@plt>
  test   %rax,%rax
  jne    L54
  lea    0x1(%rbp,%rbp,1),%esi
  movzbl %sil,%esi
  mov    %ebx,%edi
  call   <smbus_send_slave_address@plt>
  test   %rax,%rax
  jne    L64
  mov    %ebx,%edi
  call   <smbus_stop_condition@plt>
  test   %rax,%rax
  jne    L39
  mov    %ebx,%edi
  call   <smbus_get_result@plt>
  jmp    L98
L22:
  mov    $0x1,%r12d
L48:
  lea    D2(%rip),%rdi
  call   <print_debug@plt>
  movzbl %r12b,%edi
  call   <print_debug_hex8@plt>
  lea    D22(%rip),%rdi
  call   <print_debug@plt>
  movzbl %bpl,%edi
  call   <print_debug_hex8@plt>
  lea    D12(%rip),%rdi
  call   <print_debug@plt>
  mov    %ebx,%edi
  call   <smbus_stop_condition@plt>
  add    $0x1,%ebx
  mov    %ebx,%edi
  call   <inb@plt>
  mov    %eax,%edi
  mov    %ebx,%esi
  call   <outb@plt>
  mov    %ebx,%esi
  mov    $0x0,%edi
  call   <outb@plt>
  mov    $0xffffffff,%eax
L98:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L58:
  mov    $0x2,%r12d
  jmp    L48
L71:
  mov    $0x3,%r12d
  jmp    L48
L33:
  mov    $0x4,%r12d
  jmp    L48
L54:
  mov    $0x5,%r12d
  jmp    L48
L64:
  mov    $0x6,%r12d
  jmp    L48
L39:
  mov    $0x7,%r12d
  jmp    L48
```

tool_calls: name: unpack_data
arguments: tag: D2
type_guessed: string
name: unpack_data
arguments: tag: D22
type_guessed: string
name: unpack_data
arguments: tag: D12
type_guessed: string

tool: D2: SMBUS READ ERROR:

tool: D22:  device:

tool: D12: 


assistant: ```c
unsigned char do_smbus_read_byte(unsigned smbus_io_base, unsigned char device, unsigned char address) {
  unsigned char error = 0;
  if ((smbus_check_stop_condition(smbus_io_base))) {
    error = 1;
    goto err;
  }
  if ((smbus_start_condition(smbus_io_base))) {
    error = 2;
    goto err;
  }
  if ((smbus_send_slave_address(smbus_io_base, device << 1))) {
    error = 3;
    goto err;
  }
  smbus_ack(smbus_io_base, 1);
  if ((smbus_send_command(smbus_io_base, address))) {
    error = 4;
    goto err;
  }
  if ((smbus_start_condition(smbus_io_base))) {
    error = 5;
    goto err;
  }
  if ((smbus_send_slave_address(smbus_io_base, (device << 1) | 0x01))) {
    error = 6;
    goto err;
  }
  if ((smbus_stop_condition(smbus_io_base))) {
    error = 7;
    goto err;
  }
  return smbus_get_result(smbus_io_base);
err:
  print_debug("SMBUS READ ERROR:");
  print_debug_hex8(error);
  print_debug(" device:");
  print_debug_hex8(device);
  print_debug("\n");
  smbus_stop_condition(smbus_io_base);
  outb(inb(smbus_io_base + 0x01), smbus_io_base + 0x01);
  outb(0x0, smbus_io_base + 0x01);
  return 0xFF;
}
```