user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<conv3x3x3>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x10,%rsp
  mov    %rdi,%r10
  mov    %rsi,%rax
  mov    %rdx,%rsi
  mov    %ecx,0x8(%rsp)
  mov    %r9d,%ebx
  add    %r8d,%ebx
  mov    %ebx,0xc(%rsp)
  js     L4
  lea    0x1(%rbx),%edx
  lea    (%rax,%rdx,2),%rdi
L50:
  movw   $0x0,(%rax)
  add    $0x2,%rax
  cmp    %rax,%rdi
  jne    L50
L68:
  movslq 0xc(%rsp),%rax
  lea    0x2(%r10,%rax,2),%r10
  movslq %r9d,%r14
  lea    (%r14,%r14,1),%rdx
  mov    %rdx,%rbx
  neg    %rbx
  mov    %rbx,%rax
  movslq %r8d,%r13
  lea    0x0(%r13,%r13,1),%r8
  mov    %rbx,%rcx
  sub    %r8,%rcx
  lea    -0x2(%r10,%rcx,1),%rbx
  mov    %rbx,-0x78(%rsp)
  lea    (%r10,%rcx,1),%rbx
  mov    %rbx,-0x70(%rsp)
  lea    0x2(%r10,%rcx,1),%rbx
  mov    %rbx,-0x68(%rsp)
  mov    $0xfffffffffffffffe,%rcx
  mov    %rcx,%r9
  sub    %rdx,%r9
  lea    (%r10,%r9,1),%rbx
  mov    %rbx,-0x60(%rsp)
  lea    (%r10,%rax,1),%rbx
  mov    %rbx,-0x58(%rsp)
  mov    $0x1,%r9d
  mov    %r9,%rbx
  sub    %r14,%rbx
  lea    (%r10,%rbx,2),%rbx
  mov    %rbx,-0x50(%rsp)
  mov    %r13,%rbx
  sub    %r14,%rbx
  mov    %rbx,%rax
  add    %rax,%rax
  lea    -0x2(%r10,%rax,1),%rbx
  mov    %rbx,-0x48(%rsp)
  lea    (%r10,%rax,1),%rbx
  mov    %rbx,-0x40(%rsp)
  lea    0x2(%r10,%rax,1),%rbx
  mov    %rbx,-0x38(%rsp)
  mov    %rcx,%r11
  sub    %r8,%r11
  lea    (%r10,%r11,1),%rbx
  mov    %rbx,-0x30(%rsp)
  mov    %r10,%rbx
  sub    %r8,%rbx
  mov    %rbx,-0x28(%rsp)
  sub    %r13,%r9
  lea    (%r10,%r9,2),%rbx
  mov    %rbx,-0x20(%rsp)
  lea    -0x2(%r10,%r8,1),%rbx
  mov    %rbx,-0x18(%rsp)
  lea    (%r10,%r8,1),%rbx
  mov    %rbx,-0x10(%rsp)
  lea    0x2(%r10,%r8,1),%r9
  sub    %rax,%rcx
  lea    (%r10,%rcx,1),%rbx
  mov    %rbx,-0x8(%rsp)
  mov    %r10,%rbx
  sub    %rax,%rbx
  mov    %rbx,(%rsp)
  mov    %r14,%rbx
  sub    %r13,%rbx
  lea    0x2(%r10,%rbx,2),%r11
  lea    -0x2(%r10,%rdx,1),%rbx
  lea    (%r10,%rdx,1),%rbp
  lea    0x2(%r10,%rdx,1),%r12
  add    %r13,%r14
  lea    (%r14,%r14,1),%rax
  lea    -0x2(%r10,%rax,1),%r13
  lea    (%r10,%rax,1),%r14
  lea    0x2(%r10,%rax,1),%r15
  mov    0xc(%rsp),%eax
  lea    0x2(%rax,%rax,1),%eax
  mov    0x48(%rsp),%r8d
  sub    %eax,%r8d
  test   %r8d,%r8d
  jle    L5
  mov    %r8d,%r8d
  mov    $0x0,%ecx
L66:
  mov    -0x78(%rsp),%rax
  movswl (%rax,%rcx,2),%eax
  imul   (%rsi),%eax
  mov    -0x70(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x4(%rsi),%edx
  add    %edx,%eax
  mov    -0x68(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x8(%rsi),%edx
  add    %edx,%eax
  mov    -0x60(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0xc(%rsi),%edx
  add    %edx,%eax
  mov    -0x58(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x10(%rsi),%edx
  add    %edx,%eax
  mov    -0x50(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x14(%rsi),%edx
  add    %edx,%eax
  mov    -0x48(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x18(%rsi),%edx
  add    %edx,%eax
  mov    -0x40(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x1c(%rsi),%edx
  add    %edx,%eax
  mov    -0x38(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x20(%rsi),%edx
  add    %edx,%eax
  mov    -0x30(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x24(%rsi),%edx
  add    %edx,%eax
  mov    -0x28(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x28(%rsi),%edx
  add    %edx,%eax
  mov    -0x20(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x2c(%rsi),%edx
  add    %edx,%eax
  movswl -0x2(%r10,%rcx,2),%edx
  imul   0x30(%rsi),%edx
  add    %edx,%eax
  movswl (%r10,%rcx,2),%edx
  imul   0x34(%rsi),%edx
  add    %edx,%eax
  movswl 0x2(%r10,%rcx,2),%edx
  imul   0x38(%rsi),%edx
  add    %edx,%eax
  mov    -0x18(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x3c(%rsi),%edx
  add    %edx,%eax
  mov    -0x10(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x40(%rsi),%edx
  add    %edx,%eax
  movswl (%r9,%rcx,2),%edx
  imul   0x44(%rsi),%edx
  add    %edx,%eax
  mov    -0x8(%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x48(%rsi),%edx
  add    %edx,%eax
  mov    (%rsp),%rdx
  movswl (%rdx,%rcx,2),%edx
  imul   0x4c(%rsi),%edx
  add    %edx,%eax
  movswl (%r11,%rcx,2),%edx
  imul   0x50(%rsi),%edx
  add    %edx,%eax
  movswl (%rbx,%rcx,2),%edx
  imul   0x54(%rsi),%edx
  add    %edx,%eax
  movswl 0x0(%rbp,%rcx,2),%edx
  imul   0x58(%rsi),%edx
  add    %edx,%eax
  movswl (%r12,%rcx,2),%edx
  imul   0x5c(%rsi),%edx
  add    %edx,%eax
  movswl 0x0(%r13,%rcx,2),%edx
  imul   0x60(%rsi),%edx
  add    %edx,%eax
  movswl (%r14,%rcx,2),%edx
  imul   0x64(%rsi),%edx
  add    %edx,%eax
  movswl (%r15,%rcx,2),%edx
  imul   0x68(%rsi),%edx
  add    %edx,%eax
  cltd
  idivl  0x8(%rsp)
  mov    $0xfff,%edx
  cmp    %edx,%eax
  cmovg  %edx,%eax
  mov    %ax,(%rdi,%rcx,2)
  add    $0x1,%rcx
  cmp    %rcx,%r8
  jne    L66
  lea    (%rdi,%r8,2),%rdi
L5:
  mov    0xc(%rsp),%eax
  test   %eax,%eax
  js     L29
  lea    0x1(%rax),%eax
  lea    (%rdi,%rax,2),%rax
L8:
  movw   $0x0,(%rdi)
  add    $0x2,%rdi
  cmp    %rdi,%rax
  jne    L8
L29:
  add    $0x10,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L4:
  mov    %rax,%rdi
  jmp    L68
```

assistant: ```c
void conv3x3x3(short int *src, short int *dst, int *conv, int norm, int ncol, int npix, int nvol) {
  short int *i00, *i01, *i02, *i03, *i04, *i05, *i06, *i07, *i08;
  short int *i09, *i10, *i11, *i12, *i13, *i14, *i15, *i16, *i17;
  short int *i18, *i19, *i20, *i21, *i22, *i23, *i24, *i25, *i26;
  int i, res;
  for (i = 0; i < npix + ncol + 1; ++i) {
    *dst = 0;
    ++dst;
  }
  src += npix + ncol + 1;
  i00 = src - npix - ncol - 1;
  i01 = src - npix - ncol;
  i02 = src - npix - ncol + 1;
  i03 = src - npix - 1;
  i04 = src - npix;
  i05 = src - npix + 1;
  i06 = src - npix + ncol - 1;
  i07 = src - npix + ncol;
  i08 = src - npix + ncol + 1;
  i09 = src - ncol - 1;
  i10 = src - ncol;
  i11 = src - ncol + 1;
  i12 = src - 1;
  i13 = src;
  i14 = src + 1;
  i15 = src + ncol - 1;
  i16 = src + ncol;
  i17 = src + ncol + 1;
  i18 = src + npix - ncol - 1;
  i19 = src + npix - ncol;
  i20 = src + npix - ncol + 1;
  i21 = src + npix - 1;
  i22 = src + npix;
  i23 = src + npix + 1;
  i24 = src + npix + ncol - 1;
  i25 = src + npix + ncol;
  i26 = src + npix + ncol + 1;
  nvol -= 2 * (npix + ncol + 1);
  for (i = 0; i < nvol; ++i) {
    res = (*i00 * conv[0] + *i01 * conv[1] + *i02 * conv[2] + *i03 * conv[3] + *i04 * conv[4] + *i05 * conv[5] + *i06 * conv[6] + *i07 * conv[7] + *i08 * conv[8] + *i09 * conv[9] + *i10 * conv[10] + *i11 * conv[11] + *i12 * conv[12] + *i13 * conv[13] + *i14 * conv[14] + *i15 * conv[15] + *i16 * conv[16] + *i17 * conv[17] + *i18 * conv[18] + *i19 * conv[19] + *i20 * conv[20] + *i21 * conv[21] + *i22 * conv[22] + *i23 * conv[23] + *i24 * conv[24] + *i25 * conv[25] + *i26 * conv[26]) / norm;
    if (res > 4096 - 1)
      *dst = 4096 - 1;
    else
      *dst = res;
    dst++;
    i00++;
    i01++;
    i02++;
    i03++;
    i04++;
    i05++;
    i06++;
    i07++;
    i08++;
    i09++;
    i10++;
    i11++;
    i12++;
    i13++;
    i14++;
    i15++;
    i16++;
    i17++;
    i18++;
    i19++;
    i20++;
    i21++;
    i22++;
    i23++;
    i24++;
    i25++;
    i26++;
  }
  for (i = 0; i < npix + ncol + 1; ++i) {
    *dst = 0;
    ++dst;
  }
}
```