user: 请从给定的汇编指令推导出C源代码：

```asm
<do_smbus_read_byte>:
  endbr64
  push   %r13
  push   %r12
  mov    %edx,%r12d
  push   %rbp
  mov    %edi,%ebp
  push   %rbx
  mov    %esi,%ebx
  movzbl %bl,%r13d
  sub    $0x8,%rsp
  call   <smbus_check_stop_condition@plt>
  test   %rax,%rax
  jne    L59
  mov    %ebp,%edi
  call   <smbus_start_condition@plt>
  test   %rax,%rax
  jne    L104
  lea    (%rbx,%rbx,1),%esi
  mov    %ebp,%edi
  movzbl %sil,%esi
  call   <smbus_send_slave_address@plt>
  test   %rax,%rax
  jne    L114
  mov    $0x1,%esi
  mov    %ebp,%edi
  call   <smbus_ack@plt>
  movzbl %r12b,%esi
  mov    %ebp,%edi
  call   <smbus_send_command@plt>
  test   %rax,%rax
  jne    L0
  mov    %ebp,%edi
  call   <smbus_start_condition@plt>
  test   %rax,%rax
  jne    L107
  lea    0x1(%r13,%r13,1),%esi
  mov    %ebp,%edi
  movzbl %sil,%esi
  call   <smbus_send_slave_address@plt>
  test   %rax,%rax
  jne    L14
  mov    %ebp,%edi
  call   <smbus_stop_condition@plt>
  test   %rax,%rax
  jne    L35
  add    $0x8,%rsp
  mov    %ebp,%edi
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  jmp    1100 <smbus_get_result@plt>
  nopl   0x0(%rax,%rax,1)
L104:
  mov    $0x2,%r12d
L113:
  lea    D1(%rip),%rdi
  call   <print_debug@plt>
  mov    %r12d,%edi
  call   <print_debug_hex8@plt>
  lea    D9(%rip),%rdi
  call   <print_debug@plt>
  mov    %r13d,%edi
  call   <print_debug_hex8@plt>
  lea    D15(%rip),%rdi
  call   <print_debug@plt>
  mov    %ebp,%edi
  add    $0x1,%ebp
  call   <smbus_stop_condition@plt>
  mov    %ebp,%edi
  call   <inb@plt>
  mov    %ebp,%esi
  mov    %eax,%edi
  call   <outb@plt>
  mov    %ebp,%esi
  xor    %edi,%edi
  call   <outb@plt>
  add    $0x8,%rsp
  mov    $0xffffffff,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   (%rax)
L59:
  mov    $0x1,%r12d
  jmp    L113
  nopl   0x0(%rax,%rax,1)
L0:
  mov    $0x4,%r12d
  jmp    L113
  nopl   0x0(%rax,%rax,1)
L114:
  mov    $0x3,%r12d
  jmp    L113
  nopl   0x0(%rax,%rax,1)
L107:
  mov    $0x5,%r12d
  jmp    L113
  nopl   0x0(%rax,%rax,1)
L35:
  mov    $0x7,%r12d
  jmp    L113
  nopl   0x0(%rax,%rax,1)
L14:
  mov    $0x6,%r12d
  jmp    L113
```

tool_calls: name: parse_data
arguments: data_label: D1
type: string
name: parse_data
arguments: data_label: D9
type: string
name: parse_data
arguments: data_label: D15
type: string

tool: D1: SMBUS READ ERROR:

tool: D9:  device:

tool: D15: 


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;
}
```