user: 请将以下的汇编代码转换成C语言代码：

```asm
<pc1_256>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  add    $0xffffffffffffff80,%rsp
  mov    %rdi,-0x68(%rbp)
  mov    %rsi,-0x70(%rbp)
  mov    %edx,-0x74(%rbp)
  mov    %ecx,-0x78(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    0x10(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x68(%rbp),%rax
  mov    %rax,-0x50(%rbp)
  mov    $0x0,%eax
  mov    %ax,-0x44(%rbp)
  mov    $0x0,%eax
  mov    %ax,-0x16(%rbp)
  mov    $0x0,%eax
  mov    %ax,-0x18(%rbp)
  movl   $0x0,-0x54(%rbp)
  jmp    L53
L25:
  mov    -0x54(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x70(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  mov    %ax,-0x5a(%rbp)
  lea    -0x50(%rbp),%rax
  mov    %rax,%r10
  call   <pc1_256_assemble.0>
  movzwl -0x48(%rbp),%eax
  shr    $0x8,%ax
  mov    %ax,-0x58(%rbp)
  movzwl -0x48(%rbp),%eax
  and    $0xff,%ax
  mov    %ax,-0x56(%rbp)
  cmpl   $0x0,-0x78(%rbp)
  jne    L59
  movzwl -0x58(%rbp),%eax
  xor    -0x56(%rbp),%ax
  xor    %ax,-0x5a(%rbp)
L59:
  movw   $0x0,-0x5c(%rbp)
  jmp    L62
L39:
  movzwl -0x5c(%rbp),%eax
  mov    -0x50(%rbp),%rdx
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %eax,%edx
  movzwl -0x5a(%rbp),%eax
  mov    %edx,%ecx
  xor    %eax,%ecx
  movzwl -0x5c(%rbp),%eax
  mov    -0x50(%rbp),%rdx
  add    %rdx,%rax
  mov    %ecx,%edx
  mov    %dl,(%rax)
  movzwl -0x5c(%rbp),%eax
  add    $0x1,%eax
  mov    %ax,-0x5c(%rbp)
L62:
  cmpw   $0x1f,-0x5c(%rbp)
  jbe    L39
  cmpl   $0x0,-0x78(%rbp)
  je     L49
  movzwl -0x58(%rbp),%eax
  xor    -0x56(%rbp),%ax
  xor    %ax,-0x5a(%rbp)
L49:
  mov    -0x54(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x70(%rbp),%rax
  add    %rdx,%rax
  movzwl -0x5a(%rbp),%edx
  mov    %dl,(%rax)
  addl   $0x1,-0x54(%rbp)
L53:
  mov    -0x54(%rbp),%eax
  cmp    -0x74(%rbp),%eax
  jl     L25
  mov    -0x74(%rbp),%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L7
  call   <__stack_chk_fail@plt>
L7:
  leave
  ret
```

assistant: ```c
int pc1_256(unsigned char *cle, unsigned char *data, int size, int decenc) {
  unsigned short ax, bx, cx, dx, si, tmp, x1a2, x1a0[16], res, i, inter, cfc, cfd, compte;
  short c;
  inline void pc1_256_code(void) {
    dx = x1a2 + i;
    ax = x1a0[i];
    cx = 0x015a;
    bx = 0x4e35;
    tmp = ax;
    ax = si;
    si = tmp;
    tmp = ax;
    ax = dx;
    dx = tmp;
    if (ax != 0) {
      ax = ax * bx;
    }
    tmp = ax;
    ax = cx;
    cx = tmp;
    if (ax != 0) {
      ax = ax * si;
      cx = ax + cx;
    }
    tmp = ax;
    ax = si;
    si = tmp;
    ax = ax * bx;
    dx = cx + dx;
    ax = ax + 1;
    x1a2 = dx;
    x1a0[i] = ax;
    res = ax ^ dx;
    i = i + 1;
  }
  inline void pc1_256_assemble(void) {
    x1a0[0] = (cle[0] * 256) + cle[1];
    pc1_256_code();
    inter = res;
    x1a0[1] = x1a0[0] ^ ((cle[2] * 256) + cle[3]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[2] = x1a0[1] ^ ((cle[4] * 256) + cle[5]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[3] = x1a0[2] ^ ((cle[6] * 256) + cle[7]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[4] = x1a0[3] ^ ((cle[8] * 256) + cle[9]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[5] = x1a0[4] ^ ((cle[10] * 256) + cle[11]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[6] = x1a0[5] ^ ((cle[12] * 256) + cle[13]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[7] = x1a0[6] ^ ((cle[14] * 256) + cle[15]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[8] = x1a0[7] ^ ((cle[16] * 256) + cle[17]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[9] = x1a0[8] ^ ((cle[18] * 256) + cle[19]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[10] = x1a0[9] ^ ((cle[20] * 256) + cle[21]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[11] = x1a0[10] ^ ((cle[22] * 256) + cle[23]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[12] = x1a0[11] ^ ((cle[24] * 256) + cle[25]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[13] = x1a0[12] ^ ((cle[26] * 256) + cle[27]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[14] = x1a0[13] ^ ((cle[28] * 256) + cle[29]);
    pc1_256_code();
    inter = inter ^ res;
    x1a0[15] = x1a0[14] ^ ((cle[30] * 256) + cle[31]);
    pc1_256_code();
    inter = inter ^ res;
    i = 0;
  }
  si = 0;
  x1a2 = 0;
  i = 0;
  int cnt;
  for (cnt = 0; cnt < size; cnt++) {
    c = data[cnt];
    pc1_256_assemble();
    cfc = inter >> 8;
    cfd = inter & 255;
    if (!decenc)
      c = c ^ (cfc ^ cfd);
    for (compte = 0; compte <= 31; compte++) {
      cle[compte] = cle[compte] ^ c;
    }
    if (decenc)
      c = c ^ (cfc ^ cfd);
    data[cnt] = c;
  }
  return (size);
}
```