user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<generate_random_walk>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  movl   $0x0,-0x8(%rbp)
  jmp    L171
L246:
  movl   $0x0,-0x4(%rbp)
  jmp    L46
L211:
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  mov    %rax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  cltq
  movb   $0x2e,(%rdx,%rax,1)
  addl   $0x1,-0x4(%rbp)
L46:
  cmpl   $0x9,-0x4(%rbp)
  jle    L211
  addl   $0x1,-0x8(%rbp)
L171:
  cmpl   $0x9,-0x8(%rbp)
  jle    L246
  mov    $0x0,%edi
  call   <time@plt>
  mov    %eax,%edi
  call   <srand@plt>
  movl   $0x0,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x18(%rbp),%rax
  movb   $0x41,(%rax)
  movb   $0x42,-0x9(%rbp)
  jmp    L162
L157:
  mov    $0x0,%eax
  call   <rand@plt>
  cltd
  shr    $0x1e,%edx
  add    %edx,%eax
  and    $0x3,%eax
  sub    %edx,%eax
  cmp    $0x3,%eax
  je     L163
  cmp    $0x3,%eax
  jg     L83
  cmp    $0x2,%eax
  je     L77
  cmp    $0x2,%eax
  jg     L83
  test   %eax,%eax
  je     L0
  cmp    $0x1,%eax
  je     L4
  jmp    L83
L0:
  cmpl   $0xa,-0x8(%rbp)
  je     L83
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x1(%rax),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  mov    %rax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  cltq
  movzbl (%rdx,%rax,1),%eax
  cmp    $0x2e,%al
  jne    L83
  addl   $0x1,-0x8(%rbp)
  movzbl -0x9(%rbp),%edx
  mov    %edx,%eax
  add    $0x1,%eax
  mov    %al,-0x9(%rbp)
  mov    -0x8(%rbp),%eax
  movslq %eax,%rcx
  mov    %rcx,%rax
  shl    $0x2,%rax
  add    %rcx,%rax
  add    %rax,%rax
  mov    %rax,%rcx
  mov    -0x18(%rbp),%rax
  add    %rax,%rcx
  mov    -0x4(%rbp),%eax
  cltq
  mov    %dl,(%rcx,%rax,1)
  lea    D8(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  jmp    L83
L4:
  cmpl   $0x0,-0x4(%rbp)
  je     L83
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  mov    %rax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  sub    $0x1,%eax
  cltq
  movzbl (%rdx,%rax,1),%eax
  cmp    $0x2e,%al
  jne    L83
  subl   $0x1,-0x4(%rbp)
  movzbl -0x9(%rbp),%edx
  mov    %edx,%eax
  add    $0x1,%eax
  mov    %al,-0x9(%rbp)
  mov    -0x8(%rbp),%eax
  movslq %eax,%rcx
  mov    %rcx,%rax
  shl    $0x2,%rax
  add    %rcx,%rax
  add    %rax,%rax
  mov    %rax,%rcx
  mov    -0x18(%rbp),%rax
  add    %rax,%rcx
  mov    -0x4(%rbp),%eax
  cltq
  mov    %dl,(%rcx,%rax,1)
  lea    D31(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  jmp    L83
L77:
  cmpl   $0x0,-0x8(%rbp)
  je     L83
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  lea    -0xa(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  cltq
  movzbl (%rdx,%rax,1),%eax
  cmp    $0x2e,%al
  jne    L83
  subl   $0x1,-0x8(%rbp)
  movzbl -0x9(%rbp),%edx
  mov    %edx,%eax
  add    $0x1,%eax
  mov    %al,-0x9(%rbp)
  mov    -0x8(%rbp),%eax
  movslq %eax,%rcx
  mov    %rcx,%rax
  shl    $0x2,%rax
  add    %rcx,%rax
  add    %rax,%rax
  mov    %rax,%rcx
  mov    -0x18(%rbp),%rax
  add    %rax,%rcx
  mov    -0x4(%rbp),%eax
  cltq
  mov    %dl,(%rcx,%rax,1)
  lea    D15(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  jmp    L83
L163:
  cmpl   $0x9,-0x4(%rbp)
  je     L83
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  mov    %rax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  add    $0x1,%eax
  cltq
  movzbl (%rdx,%rax,1),%eax
  cmp    $0x2e,%al
  jne    L83
  addl   $0x1,-0x4(%rbp)
  movzbl -0x9(%rbp),%edx
  mov    %edx,%eax
  add    $0x1,%eax
  mov    %al,-0x9(%rbp)
  mov    -0x8(%rbp),%eax
  movslq %eax,%rcx
  mov    %rcx,%rax
  shl    $0x2,%rax
  add    %rcx,%rax
  add    %rax,%rax
  mov    %rax,%rcx
  mov    -0x18(%rbp),%rax
  add    %rax,%rcx
  mov    -0x4(%rbp),%eax
  cltq
  mov    %dl,(%rcx,%rax,1)
  lea    D39(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  nop
L83:
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x1(%rax),%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  mov    %rax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  cltq
  movzbl (%rdx,%rax,1),%eax
  cmp    $0x2e,%al
  je     L162
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  mov    %rax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  add    $0x1,%eax
  cltq
  movzbl (%rdx,%rax,1),%eax
  cmp    $0x2e,%al
  je     L162
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  lea    -0xa(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  cltq
  movzbl (%rdx,%rax,1),%eax
  cmp    $0x2e,%al
  je     L162
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  mov    %rax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  sub    $0x1,%eax
  cltq
  movzbl (%rdx,%rax,1),%eax
  cmp    $0x2e,%al
  jne    L180
L162:
  cmpb   $0x5a,-0x9(%rbp)
  jle    L157
  jmp    L6
L180:
  nop
L6:
  nop
  leave
  ret
```

tool_calls: name: read_data
arguments: data_tag: D8
datatype: string
name: read_data
arguments: data_tag: D31
datatype: string
name: read_data
arguments: data_tag: D15
datatype: string
name: read_data
arguments: data_tag: D39
datatype: string

tool: D8: down 

tool: D31: left 

tool: D15: up 

tool: D39: rigth 

assistant: ```c
void generate_random_walk(char walk[10][10]) {
  int i, j;
  char letter;
  for (i = 0; i < 10; i++)
    for (j = 0; j < 10; j++)
      walk[i][j] = '.';
  srand((unsigned)time(NULL));
  i = j = 0;
  walk[0][0] = 'A';
  letter = 'B';
  while (letter <= 'Z') {
    switch (rand() % 4) {
    case 0:
      if ((i != 10) && (walk[i + 1][j] == '.')) {
        i++;
        walk[i][j] = letter++;
        printf("down ");
        break;
      } else
        break;
    case 1:
      if ((j != 0) && (walk[i][j - 1] == '.')) {
        --j;
        walk[i][j] = letter++;
        printf("left ");
        break;
      } else
        break;
    case 2:
      if ((i != 0) && (walk[i - 1][j] == '.')) {
        --i;
        walk[i][j] = letter++;
        printf("up ");
        break;
      } else
        break;
    case 3:
      if ((j != 10 - 1) && (walk[i][j + 1] == '.')) {
        j++;
        walk[i][j] = letter++;
        printf("rigth ");
        break;
      } else
        break;
    }
    if (walk[i + 1][j] != '.' && walk[i][j + 1] != '.' && walk[i - 1][j] != '.' && walk[i][j - 1] != '.')
      break;
  }
}
```