user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<pmt_decode_group>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  movslq %esi,%r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %ecx,0x1c(%rsp)
  test   %r12,%r12
  jle    L68
  mov    %rdi,%r15
  movslq %ecx,%rax
  mov    %rdx,%r13
  mov    %rdx,%rdi
  mov    %rax,0x8(%rsp)
  mov    %r15,%rbx
  jmp    L43
  nopl   0x0(%rax,%rax,1)
L111:
  and    $0x7f,%edx
  cmp    %rax,%r12
  jl     L55
  movslq %edx,%rax
  lea    (%rdi,%rax,4),%r14
  mov    %r14,%rbp
  sub    %r13,%rbp
  sar    $0x2,%rbp
  cmp    0x8(%rsp),%rbp
  jg     L36
  mov    0x4(%rbx),%esi
  add    $0x8,%rbx
  call   <memset@plt>
  mov    %rbx,%rax
  mov    %r14,%rdi
  sub    %r15,%rax
  sar    $0x2,%rax
  cmp    %r12,%rax
  jge    L3
L43:
  lea    0x4(%rbx),%rcx
  mov    (%rbx),%edx
  mov    %rcx,%rax
  sub    %r15,%rax
  sar    $0x2,%rax
  test   $0x80,%dl
  jne    L111
  cmp    %rax,%r12
  jl     L55
  movslq %edx,%rbx
  shl    $0x2,%rbx
  lea    (%rdi,%rbx,1),%r14
  mov    %r14,%rbp
  sub    %r13,%rbp
  sar    $0x2,%rbp
  cmp    0x8(%rsp),%rbp
  jg     L36
  mov    %rcx,%rsi
  mov    %rcx,0x10(%rsp)
  call   <memcpy@plt>
  mov    0x10(%rsp),%rcx
  mov    %r14,%rdi
  add    %rcx,%rbx
  mov    %rbx,%rax
  sub    %r15,%rax
  sar    $0x2,%rax
  cmp    %r12,%rax
  jl     L43
L3:
  mov    %ebp,%eax
L12:
  cmp    %eax,0x1c(%rsp)
  je     L83
  mov    0x1c(%rsp),%edx
  mov    %eax,%esi
  lea    D24(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    $0xffffffff,%eax
  jmp    L83
  cs nopw 0x0(%rax,%rax,1)
L55:
  lea    D15(%rip),%rdi
  call   <puts@plt>
  mov    $0xffffffff,%eax
L83:
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L36:
  lea    D21(%rip),%rdi
  call   <puts@plt>
  add    $0x28,%rsp
  mov    $0xffffffff,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L68:
  xor    %eax,%eax
  jmp    L12
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D24
type: string
name: extract_symbolic_data
arguments: data_label: D15
type: string
name: extract_symbolic_data
arguments: data_label: D21
type: string

tool: D24: ERROR: decoded %d bytes, expected %d


tool: D15: ERROR: attempted to read past end of input data.

tool: D21: ERROR: attempted to write past end of output buffer.

assistant: ```c
int pmt_decode_group(uint8_t *raw_group_buf, int raw_group_size, uint8_t *decoded_group_buf, int decoded_group_buf_size) {
  uint8_t *src = raw_group_buf;
  uint8_t *dst = decoded_group_buf;
  while ((src - raw_group_buf) < raw_group_size) {
    if (*src & 0x80) {
      uint8_t run_length = *src & 0x7f;
      src++;
      if ((src - raw_group_buf) > raw_group_size) {
        printf("ERROR: attempted to read past end of input data.\n");
        return -1;
      }
      if ((dst + run_length - decoded_group_buf) > decoded_group_buf_size) {
        printf("ERROR: attempted to write past end of output buffer.\n");
        return -1;
      }
      memset(dst, *src, run_length);
      src++;
      dst += run_length;
    } else {
      uint8_t copy_count = *src;
      src++;
      if ((src - raw_group_buf) > raw_group_size) {
        printf("ERROR: attempted to read past end of input data.\n");
        return -1;
      }
      if ((dst + copy_count - decoded_group_buf) > decoded_group_buf_size) {
        printf("ERROR: attempted to write past end of output buffer.\n");
        return -1;
      }
      memcpy(dst, src, copy_count);
      src += copy_count;
      dst += copy_count;
    }
  }
  int decoded_bytes = dst - decoded_group_buf;
  if (decoded_bytes != decoded_group_buf_size) {
    printf("ERROR: decoded %d bytes, expected %d\n", decoded_bytes, decoded_group_buf_size);
    return -1;
  } else {
    return decoded_bytes;
  }
}
```