user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<pred_comp>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x38(%rbp)
  mov    %rsi,-0x40(%rbp)
  mov    %edx,-0x44(%rbp)
  mov    %ecx,-0x48(%rbp)
  mov    %r8d,-0x4c(%rbp)
  mov    %r9d,-0x50(%rbp)
  mov    0x18(%rbp),%eax
  sar    %eax
  mov    %eax,-0x20(%rbp)
  mov    0x18(%rbp),%eax
  and    $0x1,%eax
  mov    %eax,-0x1c(%rbp)
  mov    0x20(%rbp),%eax
  sar    %eax
  mov    %eax,-0x18(%rbp)
  mov    0x20(%rbp),%eax
  and    $0x1,%eax
  mov    %eax,-0x14(%rbp)
  mov    0x10(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  imul   -0x44(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x50(%rbp),%ecx
  mov    -0x20(%rbp),%eax
  add    %ecx,%eax
  cltq
  add    %rax,%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x44(%rbp),%eax
  imul   0x10(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x50(%rbp),%eax
  cltq
  add    %rax,%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  cmpl   $0x0,-0x1c(%rbp)
  jne    L418
  cmpl   $0x0,-0x14(%rbp)
  jne    L202
  cmpl   $0x0,0x28(%rbp)
  je     L179
  movl   $0x0,-0x24(%rbp)
  jmp    L102
L223:
  movl   $0x0,-0x28(%rbp)
  jmp    L315
L493:
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%edx
  mov    -0x28(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x10(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  add    %edx,%eax
  add    $0x1,%eax
  shr    %eax
  mov    %eax,%ecx
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    %ecx,%edx
  mov    %dl,(%rax)
  addl   $0x1,-0x28(%rbp)
L315:
  mov    -0x28(%rbp),%eax
  cmp    -0x48(%rbp),%eax
  jl     L493
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x10(%rbp)
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
  addl   $0x1,-0x24(%rbp)
L102:
  mov    -0x24(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jl     L223
  jmp    L503
L179:
  movl   $0x0,-0x24(%rbp)
  jmp    L277
L210:
  movl   $0x0,-0x28(%rbp)
  jmp    L293
L428:
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  mov    -0x28(%rbp),%edx
  movslq %edx,%rcx
  mov    -0x8(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  addl   $0x1,-0x28(%rbp)
L293:
  mov    -0x28(%rbp),%eax
  cmp    -0x48(%rbp),%eax
  jl     L428
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x10(%rbp)
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
  addl   $0x1,-0x24(%rbp)
L277:
  mov    -0x24(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jl     L210
  jmp    L503
L418:
  nop
  jmp    L9
L202:
  nop
L9:
  cmpl   $0x0,-0x1c(%rbp)
  jne    L101
  cmpl   $0x0,-0x14(%rbp)
  je     L309
  cmpl   $0x0,0x28(%rbp)
  je     L354
  movl   $0x0,-0x24(%rbp)
  jmp    L140
L396:
  movl   $0x0,-0x28(%rbp)
  jmp    L17
L42:
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%edx
  mov    -0x28(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x10(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  movzbl %al,%ecx
  mov    -0x28(%rbp),%esi
  mov    -0x44(%rbp),%eax
  add    %esi,%eax
  movslq %eax,%rsi
  mov    -0x10(%rbp),%rax
  add    %rsi,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  add    %ecx,%eax
  add    $0x1,%eax
  shr    %eax
  add    %edx,%eax
  add    $0x1,%eax
  shr    %eax
  mov    %eax,%ecx
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    %ecx,%edx
  mov    %dl,(%rax)
  addl   $0x1,-0x28(%rbp)
L17:
  mov    -0x28(%rbp),%eax
  cmp    -0x48(%rbp),%eax
  jl     L42
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x10(%rbp)
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
  addl   $0x1,-0x24(%rbp)
L140:
  mov    -0x24(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jl     L396
  jmp    L503
L354:
  movl   $0x0,-0x24(%rbp)
  jmp    L393
L392:
  movl   $0x0,-0x28(%rbp)
  jmp    L319
L115:
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%edx
  mov    -0x28(%rbp),%ecx
  mov    -0x44(%rbp),%eax
  add    %ecx,%eax
  movslq %eax,%rcx
  mov    -0x10(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  add    %edx,%eax
  add    $0x1,%eax
  shr    %eax
  mov    %eax,%ecx
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    %ecx,%edx
  mov    %dl,(%rax)
  addl   $0x1,-0x28(%rbp)
L319:
  mov    -0x28(%rbp),%eax
  cmp    -0x48(%rbp),%eax
  jl     L115
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x10(%rbp)
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
  addl   $0x1,-0x24(%rbp)
L393:
  mov    -0x24(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jl     L392
  jmp    L503
L101:
  nop
  jmp    L511
L309:
  nop
L511:
  cmpl   $0x0,-0x1c(%rbp)
  je     L435
  cmpl   $0x0,-0x14(%rbp)
  jne    L251
  cmpl   $0x0,0x28(%rbp)
  je     L23
  movl   $0x0,-0x24(%rbp)
  jmp    L310
L388:
  movl   $0x0,-0x28(%rbp)
  jmp    L515
L389:
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%edx
  mov    -0x28(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x10(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  movzbl %al,%ecx
  mov    -0x28(%rbp),%eax
  add    $0x1,%eax
  movslq %eax,%rsi
  mov    -0x10(%rbp),%rax
  add    %rsi,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  add    %ecx,%eax
  add    $0x1,%eax
  shr    %eax
  add    %edx,%eax
  add    $0x1,%eax
  shr    %eax
  mov    %eax,%ecx
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    %ecx,%edx
  mov    %dl,(%rax)
  addl   $0x1,-0x28(%rbp)
L515:
  mov    -0x28(%rbp),%eax
  cmp    -0x48(%rbp),%eax
  jl     L389
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x10(%rbp)
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
  addl   $0x1,-0x24(%rbp)
L310:
  mov    -0x24(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jl     L388
  jmp    L503
L23:
  movl   $0x0,-0x24(%rbp)
  jmp    L182
L374:
  movl   $0x0,-0x28(%rbp)
  jmp    L178
L22:
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%edx
  mov    -0x28(%rbp),%eax
  add    $0x1,%eax
  movslq %eax,%rcx
  mov    -0x10(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  add    %edx,%eax
  add    $0x1,%eax
  shr    %eax
  mov    %eax,%ecx
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    %ecx,%edx
  mov    %dl,(%rax)
  addl   $0x1,-0x28(%rbp)
L178:
  mov    -0x28(%rbp),%eax
  cmp    -0x48(%rbp),%eax
  jl     L22
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x10(%rbp)
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
  addl   $0x1,-0x24(%rbp)
L182:
  mov    -0x24(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jl     L374
  jmp    L503
L435:
  nop
  jmp    L501
L251:
  nop
L501:
  cmpl   $0x0,0x28(%rbp)
  je     L184
  movl   $0x0,-0x24(%rbp)
  jmp    L280
L303:
  movl   $0x0,-0x28(%rbp)
  jmp    L314
L60:
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%edx
  mov    -0x28(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x10(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  movzbl %al,%ecx
  mov    -0x28(%rbp),%eax
  add    $0x1,%eax
  movslq %eax,%rsi
  mov    -0x10(%rbp),%rax
  add    %rsi,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  lea    (%rcx,%rax,1),%esi
  mov    -0x28(%rbp),%ecx
  mov    -0x44(%rbp),%eax
  add    %ecx,%eax
  movslq %eax,%rcx
  mov    -0x10(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  add    %eax,%esi
  mov    -0x28(%rbp),%ecx
  mov    -0x44(%rbp),%eax
  add    %ecx,%eax
  add    $0x1,%eax
  movslq %eax,%rcx
  mov    -0x10(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  add    %esi,%eax
  add    $0x2,%eax
  shr    $0x2,%eax
  add    %edx,%eax
  add    $0x1,%eax
  shr    %eax
  mov    %eax,%ecx
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    %ecx,%edx
  mov    %dl,(%rax)
  addl   $0x1,-0x28(%rbp)
L314:
  mov    -0x28(%rbp),%eax
  cmp    -0x48(%rbp),%eax
  jl     L60
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x10(%rbp)
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
  addl   $0x1,-0x24(%rbp)
L280:
  mov    -0x24(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jl     L303
  jmp    L503
L184:
  movl   $0x0,-0x24(%rbp)
  jmp    L39
L97:
  movl   $0x0,-0x28(%rbp)
  jmp    L91
L98:
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%edx
  mov    -0x28(%rbp),%eax
  add    $0x1,%eax
  movslq %eax,%rcx
  mov    -0x10(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  lea    (%rdx,%rax,1),%ecx
  mov    -0x28(%rbp),%edx
  mov    -0x44(%rbp),%eax
  add    %edx,%eax
  movslq %eax,%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  add    %eax,%ecx
  mov    -0x28(%rbp),%edx
  mov    -0x44(%rbp),%eax
  add    %edx,%eax
  add    $0x1,%eax
  movslq %eax,%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%eax
  add    %ecx,%eax
  add    $0x2,%eax
  shr    $0x2,%eax
  mov    %eax,%ecx
  mov    -0x28(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x8(%rbp),%rax
  add    %rdx,%rax
  mov    %ecx,%edx
  mov    %dl,(%rax)
  addl   $0x1,-0x28(%rbp)
L91:
  mov    -0x28(%rbp),%eax
  cmp    -0x48(%rbp),%eax
  jl     L98
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x10(%rbp)
  mov    -0x44(%rbp),%eax
  cltq
  add    %rax,-0x8(%rbp)
  addl   $0x1,-0x24(%rbp)
L39:
  mov    -0x24(%rbp),%eax
  cmp    -0x4c(%rbp),%eax
  jl     L97
L503:
  nop
  pop    %rbp
  ret
```

assistant: ```c
void pred_comp(unsigned char *src, unsigned char *dst, signed int lx, signed int w, signed int h, signed int x, signed int y, signed int dx, signed int dy, signed int addflag) {
  signed int xint;
  signed int xh;
  signed int yint;
  signed int yh;
  signed int i;
  signed int j;
  unsigned char *s;
  unsigned char *d;
  xint = dx >> 1;
  xh = dx & 1;
  yint = dy >> 1;
  yh = dy & 1;
  s = src + (signed long int)(lx * (y + yint)) + (signed long int)(x + xint);
  d = dst + (signed long int)(lx * y) + (signed long int)x;
  if (xh == 0) {
    if (yh != 0)
      goto __CPROVER_DUMP_L10;
    if (!(addflag == 0)) {
      j = 0;
      while (!(j >= h)) {
        i = 0;
        while (!(i >= w)) {
          d[(signed long int)i] = (unsigned char)((unsigned int)((signed int)d[(signed long int)i] + (signed int)s[(signed long int)i] + 1) >> 1);
          i = i + 1;
        }
        s = s + (signed long int)lx;
        d = d + (signed long int)lx;
        j = j + 1;
      }
    } else {
      j = 0;
      while (!(j >= h)) {
        i = 0;
        while (!(i >= w)) {
          d[(signed long int)i] = s[(signed long int)i];
          i = i + 1;
        }
        s = s + (signed long int)lx;
        d = d + (signed long int)lx;
        j = j + 1;
      }
    }
  } else {
  __CPROVER_DUMP_L10:;
    if (xh == 0) {
      if (yh == 0)
        goto __CPROVER_DUMP_L20;
      if (!(addflag == 0)) {
        j = 0;
        while (!(j >= h)) {
          i = 0;
          while (!(i >= w)) {
            d[(signed long int)i] = (unsigned char)((unsigned int)d[(signed long int)i] + ((unsigned int)((signed int)s[(signed long int)i] + (signed int)s[(signed long int)(i + lx)] + 1) >> 1) + (unsigned int)1 >> 1);
            i = i + 1;
          }
          s = s + (signed long int)lx;
          d = d + (signed long int)lx;
          j = j + 1;
        }
      } else {
        j = 0;
        while (!(j >= h)) {
          i = 0;
          while (!(i >= w)) {
            d[(signed long int)i] = (unsigned char)((unsigned int)((signed int)s[(signed long int)i] + (signed int)s[(signed long int)(i + lx)] + 1) >> 1);
            i = i + 1;
          }
          s = s + (signed long int)lx;
          d = d + (signed long int)lx;
          j = j + 1;
        }
      }
    } else {
    __CPROVER_DUMP_L20:;
      if (!(xh == 0)) {
        if (yh != 0)
          goto __CPROVER_DUMP_L30;
        if (!(addflag == 0)) {
          j = 0;
          while (!(j >= h)) {
            i = 0;
            while (!(i >= w)) {
              d[(signed long int)i] = (unsigned char)((unsigned int)d[(signed long int)i] + ((unsigned int)((signed int)s[(signed long int)i] + (signed int)s[(signed long int)(i + 1)] + 1) >> 1) + (unsigned int)1 >> 1);
              i = i + 1;
            }
            s = s + (signed long int)lx;
            d = d + (signed long int)lx;
            j = j + 1;
          }
        } else {
          j = 0;
          while (!(j >= h)) {
            i = 0;
            while (!(i >= w)) {
              d[(signed long int)i] = (unsigned char)((unsigned int)((signed int)s[(signed long int)i] + (signed int)s[(signed long int)(i + 1)] + 1) >> 1);
              i = i + 1;
            }
            s = s + (signed long int)lx;
            d = d + (signed long int)lx;
            j = j + 1;
          }
        }
      } else {
      __CPROVER_DUMP_L30:;
        if (!(addflag == 0)) {
          j = 0;
          while (!(j >= h)) {
            i = 0;
            while (!(i >= w)) {
              d[(signed long int)i] = (unsigned char)((unsigned int)d[(signed long int)i] + ((unsigned int)((signed int)s[(signed long int)i] + (signed int)s[(signed long int)(i + 1)] + (signed int)s[(signed long int)(i + lx)] + (signed int)s[(signed long int)(i + lx + 1)] + 2) >> 2) + (unsigned int)1 >> 1);
              i = i + 1;
            }
            s = s + (signed long int)lx;
            d = d + (signed long int)lx;
            j = j + 1;
          }
        } else {
          j = 0;
          while (!(j >= h)) {
            i = 0;
            while (!(i >= w)) {
              d[(signed long int)i] = (unsigned char)((unsigned int)((signed int)s[(signed long int)i] + (signed int)s[(signed long int)(i + 1)] + (signed int)s[(signed long int)(i + lx)] + (signed int)s[(signed long int)(i + lx + 1)] + 2) >> 2);
              i = i + 1;
            }
            s = s + (signed long int)lx;
            d = d + (signed long int)lx;
            j = j + 1;
          }
        }
      }
    }
  }
}
```