user: 请从给定的汇编指令推导出C源代码：

```asm
<checkbuffer>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbx
  cmpb   $0xff,(%rdi)
  je     L29
  lea    D79(%rip),%rdi
  call   <msg_Dbg@plt>
  mov    $0x1,%ebp
L26:
  cmpb   $0xff,0x1(%rbx)
  je     L15
  lea    D112(%rip),%rdi
  call   <msg_Dbg@plt>
L74:
  cmpb   $0x1,0x2(%rbx)
  jbe    L45
  lea    D103(%rip),%rdi
  call   <msg_Dbg@plt>
  mov    $0x1,%ebp
L12:
  cmpb   $0xff,0x3(%rbx)
  je     L20
  lea    D72(%rip),%rdi
  call   <msg_Dbg@plt>
L47:
  cmpb   $0xff,0x4(%rbx)
  je     L23
  lea    D59(%rip),%rdi
  call   <msg_Dbg@plt>
L59:
  cmpb   $0x4,0x5(%rbx)
  ja     L73
  lea    D0(%rip),%rdi
  call   <msg_Dbg@plt>
L82:
  mov    %ebp,%eax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L29:
  lea    D15(%rip),%rdi
  call   <msg_Dbg@plt>
  mov    $0x0,%ebp
  jmp    L26
L15:
  lea    D83(%rip),%rdi
  call   <msg_Dbg@plt>
  mov    $0x1,%ebp
  jmp    L74
L45:
  lea    D74(%rip),%rdi
  call   <msg_Dbg@plt>
  jmp    L12
L20:
  lea    D52(%rip),%rdi
  call   <msg_Dbg@plt>
  mov    $0x1,%ebp
  jmp    L47
L23:
  lea    D77(%rip),%rdi
  call   <msg_Dbg@plt>
  mov    $0x1,%ebp
  jmp    L59
L73:
  lea    D106(%rip),%rdi
  call   <msg_Dbg@plt>
  mov    $0x1,%ebp
  jmp    L82
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D79
datatype: string
name: extract_symbolic_data
arguments: data_label: D112
datatype: string
name: extract_symbolic_data
arguments: data_label: D103
datatype: string
name: extract_symbolic_data
arguments: data_label: D72
datatype: string
name: extract_symbolic_data
arguments: data_label: D59
datatype: string
name: extract_symbolic_data
arguments: data_label: D0
datatype: string
name: extract_symbolic_data
arguments: data_label: D15
datatype: string
name: extract_symbolic_data
arguments: data_label: D83
datatype: string
name: extract_symbolic_data
arguments: data_label: D74
datatype: string
name: extract_symbolic_data
arguments: data_label: D52
datatype: string
name: extract_symbolic_data
arguments: data_label: D77
datatype: string
name: extract_symbolic_data
arguments: data_label: D106
datatype: string

tool: D79: buffer[0] != 255

tool: D112: buffer[1] <255

tool: D103: buffer[2] >= 2

tool: D72: buffer[3] <255

tool: D59: buffer[4] <255

tool: D0: buffer[5] <5

tool: D15: buffer[0] == 255

tool: D83: buffer[1] >= 255

tool: D74: buffer[2] <2

tool: D52: buffer[3] >= 255

tool: D77: buffer[4] >= 255

tool: D106: buffer[5] >= 255

assistant: ```c
int checkbuffer(unsigned char *buffer) {
  int error = 0;
  if (buffer[0] == 255) {
    msg_Dbg("buffer[0] == 255");
  } else {
    error = 1;
    msg_Dbg("buffer[0] != 255");
  }
  if (buffer[1] < 255) {
    msg_Dbg("buffer[1] <255");
  } else {
    error = 1;
    msg_Dbg("buffer[1] >= 255");
  }
  if (buffer[2] < 2) {
    msg_Dbg("buffer[2] <2");
  } else {
    error = 1;
    msg_Dbg("buffer[2] >= 2");
  }
  if (buffer[3] < 255) {
    msg_Dbg("buffer[3] <255");
  } else {
    error = 1;
    msg_Dbg("buffer[3] >= 255");
  }
  if (buffer[4] < 255) {
    msg_Dbg("buffer[4] <255");
  } else {
    error = 1;
    msg_Dbg("buffer[4] >= 255");
  }
  if (buffer[5] < 5) {
    msg_Dbg("buffer[5] <5");
  } else {
    error = 1;
    msg_Dbg("buffer[5] >= 255");
  }
  return error;
}
```