user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<redupe_correct_errata>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x688,%rsp
  mov    %rdi,-0x668(%rbp)
  mov    %esi,-0x66c(%rbp)
  mov    %rdx,-0x678(%rbp)
  mov    %ecx,-0x670(%rbp)
  mov    %r8,-0x680(%rbp)
  mov    %r9d,-0x684(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  mov    -0x684(%rbp),%eax
  mov    %eax,-0x630(%rbp)
  movl   $0x0,-0x64c(%rbp)
  jmp    L34
L63:
  mov    -0x66c(%rbp),%eax
  mov    %eax,%ecx
  mov    -0x64c(%rbp),%edx
  mov    -0x680(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  mov    %ecx,%eax
  sub    %edx,%eax
  lea    -0x1(%rax),%edx
  mov    -0x64c(%rbp),%eax
  mov    %dl,-0x620(%rbp,%rax,1)
  addl   $0x1,-0x64c(%rbp)
L34:
  mov    -0x64c(%rbp),%eax
  cmp    -0x630(%rbp),%eax
  jb     L63
  movl   $0x0,-0x658(%rbp)
  lea    -0x658(%rbp),%rcx
  lea    -0x520(%rbp),%rdx
  mov    -0x630(%rbp),%esi
  lea    -0x620(%rbp),%rax
  mov    %rax,%rdi
  call   <redupe_find_errata_locator@plt>
  mov    -0x670(%rbp),%eax
  mov    %eax,-0x654(%rbp)
  movl   $0x0,-0x648(%rbp)
  jmp    L8
L45:
  mov    -0x648(%rbp),%edx
  mov    -0x678(%rbp),%rax
  add    %rax,%rdx
  mov    -0x670(%rbp),%eax
  sub    -0x648(%rbp),%eax
  lea    -0x1(%rax),%ecx
  movzbl (%rdx),%eax
  mov    %ecx,%edx
  mov    %al,-0x420(%rbp,%rdx,1)
  addl   $0x1,-0x648(%rbp)
L8:
  mov    -0x648(%rbp),%eax
  cmp    -0x670(%rbp),%eax
  jb     L45
  movl   $0x0,-0x650(%rbp)
  mov    -0x658(%rbp),%eax
  lea    -0x1(%rax),%r10d
  mov    -0x658(%rbp),%ecx
  mov    -0x654(%rbp),%esi
  lea    -0x320(%rbp),%r8
  lea    -0x520(%rbp),%rdx
  lea    -0x420(%rbp),%rax
  sub    $0x8,%rsp
  lea    -0x650(%rbp),%rdi
  push   %rdi
  mov    %r8,%r9
  mov    %r10d,%r8d
  mov    %rax,%rdi
  call   <redupe_find_error_evaluator@plt>
  add    $0x10,%rsp
  movl   $0x0,-0x644(%rbp)
  jmp    L129
L91:
  mov    -0x644(%rbp),%eax
  movzbl -0x320(%rbp,%rax,1),%eax
  mov    %al,-0x659(%rbp)
  mov    -0x650(%rbp),%eax
  sub    -0x644(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,%eax
  movzbl -0x320(%rbp,%rax,1),%edx
  mov    -0x644(%rbp),%eax
  mov    %dl,-0x320(%rbp,%rax,1)
  mov    -0x650(%rbp),%eax
  sub    -0x644(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,%edx
  movzbl -0x659(%rbp),%eax
  mov    %al,-0x320(%rbp,%rdx,1)
  addl   $0x1,-0x644(%rbp)
L129:
  mov    -0x650(%rbp),%eax
  shr    %eax
  cmp    %eax,-0x644(%rbp)
  jb     L91
  mov    -0x630(%rbp),%eax
  mov    %eax,-0x62c(%rbp)
  movl   $0x0,-0x640(%rbp)
  jmp    L93
L127:
  mov    -0x640(%rbp),%eax
  movzbl -0x620(%rbp,%rax,1),%eax
  movzbl %al,%edx
  mov    $0xff,%eax
  sub    %edx,%eax
  mov    %eax,-0x624(%rbp)
  mov    -0x624(%rbp),%eax
  neg    %eax
  mov    %eax,%esi
  mov    $0x2,%edi
  call   <redupe_gf_pow@plt>
  mov    -0x640(%rbp),%edx
  mov    %al,-0x220(%rbp,%rdx,1)
  addl   $0x1,-0x640(%rbp)
L93:
  mov    -0x640(%rbp),%eax
  cmp    -0x630(%rbp),%eax
  jb     L127
  mov    -0x66c(%rbp),%eax
  mov    %eax,-0x628(%rbp)
  lea    -0x120(%rbp),%rax
  mov    $0x100,%edx
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  movl   $0x0,-0x63c(%rbp)
  jmp    L160
L136:
  mov    -0x63c(%rbp),%eax
  movzbl -0x220(%rbp,%rax,1),%eax
  movzbl %al,%eax
  mov    %eax,%edi
  call   <redupe_gf_inv@plt>
  mov    %al,-0x65c(%rbp)
  movb   $0x1,-0x65d(%rbp)
  movl   $0x0,-0x638(%rbp)
  jmp    L126
L83:
  mov    -0x638(%rbp),%eax
  cmp    -0x63c(%rbp),%eax
  je     L6
  mov    -0x638(%rbp),%eax
  movzbl -0x220(%rbp,%rax,1),%eax
  movzbl %al,%edx
  movzbl -0x65c(%rbp),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <redupe_gf_mul@plt>
  mov    %al,-0x65a(%rbp)
  movzbl -0x65a(%rbp),%eax
  mov    %eax,%esi
  mov    $0x1,%edi
  call   <redupe_gf_sub@plt>
  mov    %al,-0x65a(%rbp)
  movzbl -0x65a(%rbp),%edx
  movzbl -0x65d(%rbp),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <redupe_gf_mul@plt>
  mov    %al,-0x65d(%rbp)
  jmp    L0
L6:
  nop
L0:
  addl   $0x1,-0x638(%rbp)
L126:
  mov    -0x638(%rbp),%eax
  cmp    -0x62c(%rbp),%eax
  jb     L83
  mov    -0x650(%rbp),%eax
  mov    %eax,-0x654(%rbp)
  movl   $0x0,-0x634(%rbp)
  jmp    L7
L85:
  mov    -0x654(%rbp),%eax
  sub    -0x634(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    -0x634(%rbp),%eax
  movzbl -0x320(%rbp,%rax,1),%eax
  mov    %edx,%edx
  mov    %al,-0x420(%rbp,%rdx,1)
  addl   $0x1,-0x634(%rbp)
L7:
  mov    -0x650(%rbp),%eax
  cmp    %eax,-0x634(%rbp)
  jb     L85
  movzbl -0x65c(%rbp),%edx
  mov    -0x654(%rbp),%ecx
  lea    -0x420(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <redupe_gf_poly_eval@plt>
  mov    %al,-0x65b(%rbp)
  movzbl -0x65b(%rbp),%ebx
  mov    -0x63c(%rbp),%eax
  movzbl -0x220(%rbp,%rax,1),%eax
  movzbl %al,%eax
  mov    $0x1,%esi
  mov    %eax,%edi
  call   <redupe_gf_pow@plt>
  movzbl %al,%eax
  mov    %ebx,%esi
  mov    %eax,%edi
  call   <redupe_gf_mul@plt>
  mov    %al,-0x65b(%rbp)
  movzbl -0x65d(%rbp),%edx
  movzbl -0x65b(%rbp),%eax
  mov    -0x63c(%rbp),%esi
  mov    -0x680(%rbp),%rcx
  add    %rsi,%rcx
  movzbl (%rcx),%ecx
  movzbl %cl,%ebx
  mov    %edx,%esi
  mov    %eax,%edi
  call   <redupe_gf_div@plt>
  movslq %ebx,%rdx
  mov    %al,-0x120(%rbp,%rdx,1)
  addl   $0x1,-0x63c(%rbp)
L160:
  mov    -0x63c(%rbp),%eax
  cmp    -0x62c(%rbp),%eax
  jb     L136
  mov    -0x66c(%rbp),%eax
  mov    %eax,-0x654(%rbp)
  mov    -0x66c(%rbp),%edx
  mov    -0x668(%rbp),%rcx
  lea    -0x420(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memmove@plt>
  mov    -0x654(%rbp),%esi
  lea    -0x654(%rbp),%r8
  mov    -0x668(%rbp),%rdi
  mov    -0x628(%rbp),%ecx
  lea    -0x120(%rbp),%rdx
  lea    -0x420(%rbp),%rax
  mov    %r8,%r9
  mov    %rdi,%r8
  mov    %rax,%rdi
  call   <redupe_gf_poly_add@plt>
  nop
  mov    -0x18(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L128
  call   <__stack_chk_fail@plt>
L128:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
void redupe_correct_errata(unsigned char *msg, unsigned msg_sz, const unsigned char *synd, unsigned synd_sz, const unsigned char *err_pos, unsigned err_pos_sz) {
  unsigned char coef_pos[256];
  unsigned coef_pos_sz = err_pos_sz;
  for (unsigned i = 0; i < coef_pos_sz; ++i) {
    coef_pos[i] = msg_sz - 1 - err_pos[i];
  }
  unsigned char err_loc[256];
  unsigned err_loc_sz = 0;
  redupe_find_errata_locator(coef_pos, coef_pos_sz, err_loc, &err_loc_sz);
  unsigned char tmp[256];
  unsigned tmp_sz = synd_sz;
  for (unsigned i = 0; i < synd_sz; ++i) {
    tmp[synd_sz - i - 1] = synd[i];
  }
  unsigned char err_eval[256];
  unsigned err_eval_sz = 0;
  redupe_find_error_evaluator(tmp, tmp_sz, err_loc, err_loc_sz, err_loc_sz - 1, err_eval, &err_eval_sz);
  for (unsigned i = 0; i < err_eval_sz / 2; ++i) {
    unsigned char t = err_eval[i];
    err_eval[i] = err_eval[err_eval_sz - i - 1];
    err_eval[err_eval_sz - i - 1] = t;
  }
  unsigned char X[256];
  unsigned X_sz = coef_pos_sz;
  for (unsigned i = 0; i < coef_pos_sz; ++i) {
    int l = 255 - coef_pos[i];
    X[i] = redupe_gf_pow(2, -l);
  }
  unsigned char E[256];
  unsigned E_sz = msg_sz;
  memset(E, 0, sizeof(E));
  for (unsigned i = 0; i < X_sz; ++i) {
    unsigned char xinv = redupe_gf_inv(X[i]);
    unsigned char err_loc_prime = 1;
    for (unsigned j = 0; j < X_sz; ++j) {
      if (j == i) {
        continue;
      }
      unsigned char t = redupe_gf_mul(xinv, X[j]);
      t = redupe_gf_sub(1, t);
      err_loc_prime = redupe_gf_mul(err_loc_prime, t);
    }
    tmp_sz = err_eval_sz;
    for (unsigned j = 0; j < err_eval_sz; ++j) {
      tmp[tmp_sz - j - 1] = err_eval[j];
    }
    unsigned char y = redupe_gf_poly_eval(tmp, tmp_sz, xinv);
    y = redupe_gf_mul(redupe_gf_pow(X[i], 1), y);
    E[err_pos[i]] = redupe_gf_div(y, err_loc_prime);
  }
  tmp_sz = msg_sz;
  memmove(tmp, msg, msg_sz);
  redupe_gf_poly_add(tmp, tmp_sz, E, E_sz, msg, &tmp_sz);
}
```