user: 下面的汇编指令对应的C源代码是什么：

```asm
<find_iso_from_start>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r13
  push   %r12
  push   %rbx
  lea    -0xc0000(%rsp),%r11
L33:
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  cmp    %r11,%rsp
  jne    L33
  sub    $0x58,%rsp
  mov    %edi,-0xc0054(%rbp)
  mov    %esi,-0xc0058(%rbp)
  mov    %edx,-0xc005c(%rbp)
  mov    %ecx,-0xc0060(%rbp)
  mov    %r8d,-0xc0064(%rbp)
  mov    %r9d,-0xc0068(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x28(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%rbx
  mov    -0xc0058(%rbp),%eax
  mov    $0x1,%edx
  mov    %eax,%ecx
  shl    %cl,%edx
  mov    %edx,%eax
  mov    %eax,-0xc0044(%rbp)
  mov    -0xc0044(%rbp),%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0xc0040(%rbp)
  movslq %eax,%rdx
  mov    %rdx,%r12
  mov    $0x0,%r13d
  movslq %eax,%rdx
  mov    %rdx,%r10
  mov    $0x0,%r11d
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%edi
  mov    $0x0,%edx
  div    %rdi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L2:
  cmp    %rdx,%rsp
  je     L31
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L2
L31:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L67
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L67:
  mov    %rsp,%rax
  add    $0x3,%rax
  shr    $0x2,%rax
  shl    $0x2,%rax
  mov    %rax,-0xc0038(%rbp)
  movl   $0x0,-0xc0050(%rbp)
  movl   $0x0,-0xc004c(%rbp)
  mov    -0xc0054(%rbp),%eax
  mov    %eax,-0xc0030(%rbp)
  movl   $0x0,-0xc0048(%rbp)
  jmp    L43
L3:
  mov    -0xc0038(%rbp),%rax
  mov    -0xc0048(%rbp),%edx
  movslq %edx,%rdx
  mov    -0xc0048(%rbp),%ecx
  mov    %ecx,(%rax,%rdx,4)
  addl   $0x1,-0xc0048(%rbp)
L43:
  mov    -0xc0048(%rbp),%eax
  cmp    -0xc0044(%rbp),%eax
  jl     L3
  mov    -0xc005c(%rbp),%r8d
  lea    -0xc0050(%rbp),%rdi
  mov    -0xc0044(%rbp),%ecx
  lea    -0x80030(%rbp),%rdx
  mov    -0xc0038(%rbp),%rsi
  mov    -0xc0054(%rbp),%eax
  mov    %r8d,%r9d
  mov    %rdi,%r8
  mov    %eax,%edi
  call   <populate_candidates@plt>
  mov    -0xc0060(%rbp),%r8d
  lea    -0xc004c(%rbp),%rdi
  mov    -0xc0044(%rbp),%ecx
  lea    -0x40030(%rbp),%rdx
  mov    -0xc0038(%rbp),%rsi
  mov    -0xc0054(%rbp),%eax
  mov    %r8d,%r9d
  mov    %rdi,%r8
  mov    %eax,%edi
  call   <populate_candidates@plt>
  mov    -0xc0064(%rbp),%edx
  mov    -0xc0068(%rbp),%eax
  lea    (%rdx,%rax,1),%esi
  mov    -0xc004c(%rbp),%r8d
  mov    -0xc0050(%rbp),%ecx
  lea    -0x40030(%rbp),%rdi
  lea    -0x80030(%rbp),%rdx
  lea    -0xc0030(%rbp),%rax
  push   %rsi
  mov    -0xc0058(%rbp),%esi
  push   %rsi
  mov    -0xc0068(%rbp),%esi
  push   %rsi
  mov    -0xc0064(%rbp),%esi
  push   %rsi
  mov    -0xc0060(%rbp),%esi
  push   %rsi
  mov    -0xc005c(%rbp),%esi
  push   %rsi
  mov    %r8d,%r9d
  mov    %rdi,%r8
  mov    $0x1,%esi
  mov    %rax,%rdi
  call   <find_iso@plt>
  add    $0x30,%rsp
  mov    %rbx,%rsp
  mov    -0x28(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L35
  call   <__stack_chk_fail@plt>
L35:
  lea    -0x18(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %rbp
  ret
```

assistant: ```c
uint16_t find_iso_from_start(uint16_t start, uint8_t n, uint8_t min_hd, uint8_t min_iso, uint16_t a_len, uint16_t min_b_len) {
  uint16_t code[(1 << 16)];
  uint16_t next_candidates[(1 << 16)];
  uint16_t next_b_candidates[(1 << 16)];
  uint16_t icand = 1 << n;
  uint16_t candidates[icand];
  int i;
  uint16_t nc, bc;
  uint16_t inext_cand = 0;
  uint16_t inext_b_cand = 0;
  code[0] = start;
  for (i = 0; i < icand; i++)
    candidates[i] = i;
  populate_candidates(start, candidates, next_candidates, icand, &inext_cand, min_hd);
  populate_candidates(start, candidates, next_b_candidates, icand, &inext_b_cand, min_iso);
  return find_iso(&code[0], 1, &next_candidates[0], inext_cand, &next_b_candidates[0], inext_b_cand, min_hd, min_iso, a_len, min_b_len, n, a_len + min_b_len);
}
```