user: 下面的汇编指令对应的C源代码是什么：

```asm
<next_combo_b>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x70,%rsp
  mov    %edi,-0x44(%rbp)
  mov    %rsi,-0x50(%rbp)
  mov    %edx,-0x48(%rbp)
  mov    %rcx,-0x58(%rbp)
  mov    %r8,-0x60(%rbp)
  mov    %r9,-0x68(%rbp)
  cmpl   $0x0,0x10(%rbp)
  je     L242
  movl   $0x0,-0x38(%rbp)
  jmp    L146
L126:
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  movl   $0x0,(%rax)
  addl   $0x1,-0x38(%rbp)
L146:
  mov    -0x38(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L126
  movl   $0x0,-0x38(%rbp)
  jmp    L96
L163:
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x60(%rbp),%rax
  add    %rdx,%rax
  movl   $0x0,(%rax)
  addl   $0x1,-0x38(%rbp)
L96:
  mov    -0x38(%rbp),%eax
  cmp    -0x48(%rbp),%eax
  jl     L163
  movl   $0xffffffff,-0x3c(%rbp)
  jmp    L66
L242:
  mov    -0x48(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,-0x3c(%rbp)
  jmp    L185
L44:
  subl   $0x1,-0x3c(%rbp)
L185:
  cmpl   $0x0,-0x3c(%rbp)
  js     L118
  mov    -0x3c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x60(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  test   %eax,%eax
  je     L44
L118:
  mov    -0x3c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x60(%rbp),%rax
  add    %rdx,%rax
  movl   $0x0,(%rax)
  movl   $0x0,-0x30(%rbp)
  mov    -0x3c(%rbp),%eax
  cltq
  imul   $0x3e8,%rax,%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x20(%rbp)
  jmp    L230
L294:
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x20(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%ecx
  mov    -0x30(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rsi
  mov    -0x68(%rbp),%rax
  add    %rsi,%rax
  sub    %ecx,%edx
  mov    %edx,(%rax)
  addl   $0x1,-0x30(%rbp)
L230:
  mov    -0x30(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L294
L66:
  movl   $0x0,-0x34(%rbp)
  movl   $0x1,-0x40(%rbp)
  jmp    L214
L326:
  mov    -0x48(%rbp),%eax
  sub    $0x1,%eax
  cmp    %eax,-0x3c(%rbp)
  jne    L268
  movl   $0x1,-0x34(%rbp)
  movl   $0x0,-0x38(%rbp)
  jmp    L31
L187:
  mov    -0x38(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  test   %eax,%eax
  jne    L24
  movl   $0x0,-0x34(%rbp)
L24:
  addl   $0x1,-0x38(%rbp)
L31:
  mov    -0x38(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jge    L312
  cmpl   $0x0,-0x34(%rbp)
  jne    L187
L312:
  cmpl   $0x0,-0x34(%rbp)
  jne    L214
  jmp    L112
L124:
  subl   $0x1,-0x3c(%rbp)
L112:
  cmpl   $0x0,-0x3c(%rbp)
  js     L60
  mov    -0x3c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x60(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  test   %eax,%eax
  je     L124
L60:
  cmpl   $0x0,-0x3c(%rbp)
  jns    L195
  movl   $0x0,-0x40(%rbp)
  jmp    L214
L195:
  mov    -0x3c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x60(%rbp),%rax
  add    %rdx,%rax
  movl   $0x0,(%rax)
  movl   $0x0,-0x2c(%rbp)
  mov    -0x3c(%rbp),%eax
  cltq
  imul   $0x3e8,%rax,%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  jmp    L311
L236:
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x8(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%ecx
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rsi
  mov    -0x68(%rbp),%rax
  add    %rsi,%rax
  sub    %ecx,%edx
  mov    %edx,(%rax)
  addl   $0x1,-0x2c(%rbp)
L311:
  mov    -0x2c(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L236
  jmp    L214
L268:
  addl   $0x1,-0x3c(%rbp)
  mov    -0x3c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x60(%rbp),%rax
  add    %rdx,%rax
  movl   $0x1,(%rax)
  movl   $0x0,-0x28(%rbp)
  mov    -0x3c(%rbp),%eax
  cltq
  imul   $0x3e8,%rax,%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x18(%rbp)
  jmp    L47
L284:
  mov    -0x28(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%ecx
  mov    -0x28(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x28(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rsi
  mov    -0x68(%rbp),%rax
  add    %rsi,%rax
  add    %ecx,%edx
  mov    %edx,(%rax)
  addl   $0x1,-0x28(%rbp)
L47:
  mov    -0x28(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L284
  mov    -0x44(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    -0x68(%rbp),%rsi
  mov    -0x58(%rbp),%rax
  mov    %edx,%ecx
  mov    $0x0,%edx
  mov    %rax,%rdi
  call   <var_check_1@plt>
  test   %eax,%eax
  jne    L214
  mov    -0x3c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x60(%rbp),%rax
  add    %rdx,%rax
  movl   $0x0,(%rax)
  movl   $0x0,-0x24(%rbp)
  mov    -0x3c(%rbp),%eax
  cltq
  imul   $0x3e8,%rax,%rdx
  mov    -0x50(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x10(%rbp)
  jmp    L244
L77:
  mov    -0x24(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x68(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x24(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x10(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%ecx
  mov    -0x24(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rsi
  mov    -0x68(%rbp),%rax
  add    %rsi,%rax
  sub    %ecx,%edx
  mov    %edx,(%rax)
  addl   $0x1,-0x24(%rbp)
L244:
  mov    -0x24(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L77
L214:
  cmpl   $0x0,-0x40(%rbp)
  je     L281
  cmpl   $0x0,-0x34(%rbp)
  je     L326
L281:
  mov    -0x34(%rbp),%eax
  leave
  ret
```

assistant: ```c
int next_combo_b(int length, int basis[100][250], int num_basis, int constraints[250], int combo[100], int sum[250], int start_flag) {
  int go, pos, i, success;
  if (start_flag) {
    for (i = 0; i < length; i++)
      sum[i] = 0;
    for (i = 0; i < num_basis; i++)
      combo[i] = 0;
    pos = -1;
  } else {
    pos = num_basis - 1;
    while (pos >= 0 && !combo[pos])
      pos--;
    combo[pos] = 0;
    {
      int j, *p;
      for (j = 0, p = basis[pos]; j < length; j++)
        sum[j] -= p[j];
    };
  }
  success = 0;
  go = 1;
  while (go && !success) {
    if (pos == num_basis - 1) {
      success = 1;
      for (i = 0; i < length && success; i++)
        if (sum[i] == 0)
          success = 0;
      if (!success) {
        while (pos >= 0 && !combo[pos])
          pos--;
        if (pos < 0)
          go = 0;
        else {
          combo[pos] = 0;
          {
            int j, *p;
            for (j = 0, p = basis[pos]; j < length; j++)
              sum[j] -= p[j];
          };
        }
      }
    } else {
      pos++;
      combo[pos] = 1;
      {
        int j, *p;
        for (j = 0, p = basis[pos]; j < length; j++)
          sum[j] += p[j];
      };
      if (!var_check_1(constraints, sum, 0, length - 1)) {
        combo[pos] = 0;
        {
          int j, *p;
          for (j = 0, p = basis[pos]; j < length; j++)
            sum[j] -= p[j];
        };
      }
    }
  }
  return success;
}
```