user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<pita1>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0xff8,%rsp
  mov    %edi,-0xff4(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  lea    -0xfc0(%rbp),%rdx
  mov    $0x0,%eax
  mov    $0x1f4,%ecx
  mov    %rdx,%rdi
  rep stos %rax,%es:(%rdi)
  mov    %rdi,%rdx
  mov    %eax,(%rdx)
  add    $0x4,%rdx
  movl   $0x3,-0xfe4(%rbp)
  jmp    L56
L95:
  mov    -0xfe4(%rbp),%eax
  and    $0x1,%eax
  test   %eax,%eax
  jne    L73
  movl   $0x1,-0xfe8(%rbp)
  jmp    L12
L73:
  movl   $0x2,-0xfe8(%rbp)
L12:
  movl   $0x1,-0xfec(%rbp)
  mov    -0xfe4(%rbp),%eax
  imul   %eax,%eax
  mov    %eax,-0xfd4(%rbp)
  mov    -0xfd4(%rbp),%eax
  cltd
  idivl  -0xfec(%rbp)
  sub    -0xfec(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  movsd  %xmm0,-0xfc8(%rbp)
  pxor   %xmm0,%xmm0
  cvtsi2sdl -0xfec(%rbp),%xmm0
  addsd  -0xfc8(%rbp),%xmm0
  cvttsd2si %xmm0,%eax
  mov    %eax,-0xfd0(%rbp)
  pxor   %xmm0,%xmm0
  cvtsi2sdl -0xfe4(%rbp),%xmm0
  movapd %xmm0,%xmm1
  addsd  -0xfc8(%rbp),%xmm1
  pxor   %xmm0,%xmm0
  cvtsi2sdl -0xfd0(%rbp),%xmm0
  addsd  %xmm1,%xmm0
  cvttsd2si %xmm0,%eax
  mov    %eax,-0xfcc(%rbp)
  jmp    L94
L98:
  mov    -0xfcc(%rbp),%eax
  cmp    -0xff4(%rbp),%eax
  jg     L106
  mov    -0xfc8(%rbp),%rax
  movq   %rax,%xmm0
  call   <floor@plt>
  mov    %rax,%rbx
  mov    -0xfc8(%rbp),%rax
  movq   %rax,%xmm0
  call   <ceil@plt>
  cmp    %rax,%rbx
  jne    L106
  mov    -0xfcc(%rbp),%eax
  cltq
  mov    -0xfc0(%rbp,%rax,4),%eax
  lea    0x1(%rax),%edx
  mov    -0xfcc(%rbp),%eax
  cltq
  mov    %edx,-0xfc0(%rbp,%rax,4)
L106:
  mov    -0xfe8(%rbp),%eax
  add    %eax,-0xfec(%rbp)
  mov    -0xfd4(%rbp),%eax
  cltd
  idivl  -0xfec(%rbp)
  sub    -0xfec(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  movsd  %xmm0,-0xfc8(%rbp)
L94:
  pxor   %xmm1,%xmm1
  cvtsi2sdl -0xfe4(%rbp),%xmm1
  movsd  -0xfc8(%rbp),%xmm0
  comisd %xmm1,%xmm0
  ja     L98
  addl   $0x1,-0xfe4(%rbp)
L56:
  mov    -0xff4(%rbp),%eax
  lea    0x3(%rax),%edx
  test   %eax,%eax
  cmovs  %edx,%eax
  sar    $0x2,%eax
  add    $0x1,%eax
  cmp    %eax,-0xfe4(%rbp)
  jle    L95
  movl   $0x0,-0xfe0(%rbp)
  movl   $0x0,-0xfdc(%rbp)
  movl   $0x0,-0xfd8(%rbp)
  jmp    L53
L19:
  mov    -0xfd8(%rbp),%eax
  cltq
  mov    -0xfc0(%rbp,%rax,4),%eax
  cmp    %eax,-0xfe0(%rbp)
  jge    L24
  mov    -0xfd8(%rbp),%eax
  cltq
  mov    -0xfc0(%rbp,%rax,4),%eax
  mov    %eax,-0xfe0(%rbp)
  mov    -0xfd8(%rbp),%eax
  mov    %eax,-0xfdc(%rbp)
L24:
  addl   $0x1,-0xfd8(%rbp)
L53:
  mov    -0xfd8(%rbp),%eax
  cmp    -0xff4(%rbp),%eax
  jl     L19
  mov    -0xfdc(%rbp),%eax
  imul   $0x3e8,%eax,%edx
  mov    -0xfe0(%rbp),%eax
  add    %edx,%eax
  mov    -0x18(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L15
  call   <__stack_chk_fail@plt>
L15:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
int pita1(int lim) {
  int refs[1001] = {0};
  int c, d, asqr, peri, step;
  double b;
  for (int a = 3; a <= (lim / 4) + 1; a++) {
    if (0 == a % 2) {
      step = 1;
    } else {
      step = 2;
    }
    d = 1;
    asqr = a * a;
    b = ((asqr / d) - d) / 2;
    c = b + d;
    peri = a + b + c;
    while (a < b) {
      if ((peri <= lim) && (floor(b) == ceil(b))) {
        refs[peri] += 1;
      }
      d += step;
      b = ((asqr / d) - d) / 2;
    }
  }
  int res = 0;
  int ires = 0;
  for (int i = 0; i < lim; i++) {
    if (refs[i] > res) {
      res = refs[i];
      ires = i;
    }
  }
  return (ires * 1000) + res;
}
```