user: 下面的汇编指令对应的C源代码是什么:

```asm
<blurYAlpha>:
  endbr64
  push   %r15
  push   %r14
  mov    %r8d,%r14d
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    0x78(%rsp),%r8d
  mov    0x70(%rsp),%eax
  mov    0x80(%rsp),%r13d
  mov    %r8d,0x8(%rsp)
  test   %ecx,%ecx
  jle    L90
  imul   %esi,%eax
  movslq %r9d,%r9
  lea    (%rcx,%rcx,1),%r12d
  mov    %rdi,%r15
  lea    (%r12,%r13,1),%edi
  mov    %ecx,%ebp
  movzbl %r14b,%r14d
  mov    %esi,(%rsp)
  movslq %r13d,%rbx
  cltq
  add    %r9,%rax
  add    %rax,%r15
  lea    0x1(%r12),%eax
  mov    %eax,0x20(%rsp)
  call   <allocMemory@plt>
  mov    %r14d,%esi
  mov    %r12d,%edx
  mov    %rax,%rdi
  mov    %rax,0x10(%rsp)
  call   <clearMemory@plt>
  mov    0x10(%rsp),%r9
  mov    %r14d,%esi
  mov    %r12d,%edx
  lea    (%r9,%rbx,1),%rdi
  call   <clearMemory@plt>
  mov    %r13d,%edi
  call   <allocMemory@plt>
  xor    %esi,%esi
  mov    %r13d,%edx
  mov    %rax,%rdi
  mov    %rax,%r14
  call   <clearMemory@plt>
  mov    0x8(%rsp),%r8d
  imul   (%rsp),%ebp
  mov    0x10(%rsp),%r9
  test   %r8d,%r8d
  jle    L87
  mov    %r13d,%eax
  movslq %ebp,%rsi
  movslq %r12d,%rcx
  movslq %r8d,%r11
  sub    %r12d,%eax
  lea    (%r9,%rcx,1),%rdi
  mov    %rsi,0x18(%rsp)
  lea    (%r15,%r11,1),%rsi
  movslq %eax,%rbp
  add    %r14,%rbx
  movslq (%rsp),%r12
  mov    %rsi,0x28(%rsp)
  add    %rdi,%rbp
  mov    %r9,0x8(%rsp)
  mov    %eax,0x24(%rsp)
  mov    %rbx,%rax
  mov    %r12,%rbx
  mov    %r15,%r12
  mov    %rdi,0x10(%rsp)
  mov    %rbp,%rdi
  mov    %rax,%r15
  mov    %r14,%rbp
  mov    %r13d,%r14d
  mov    %rdi,%r13
L128:
  mov    0x18(%rsp),%rax
  lea    (%r12,%rax,1),%rcx
  mov    0x24(%rsp),%eax
  test   %eax,%eax
  jle    L108
  cmpl   $0x1,(%rsp)
  mov    0x10(%rsp),%rax
  jne    L119
L103:
  movzbl (%rcx),%edx
  add    $0x1,%rax
  add    $0x1,%rcx
  mov    %dl,-0x1(%rax)
  cmp    %r13,%rax
  jne    L103
L108:
  mov    0x20(%rsp),%ecx
  mov    0x8(%rsp),%rsi
  mov    %r14d,%edx
  mov    %rbp,%rdi
  call   <boxBlurAlpha@plt>
  test   %r14d,%r14d
  jle    L53
  cmpl   $0x1,(%rsp)
  mov    %rbp,%rax
  mov    %r12,%rcx
  jne    L86
  nopl   0x0(%rax,%rax,1)
L50:
  movzbl (%rax),%edx
  add    $0x1,%rax
  add    $0x1,%rcx
  mov    %dl,-0x1(%rcx)
  cmp    %r15,%rax
  jne    L50
L53:
  add    $0x1,%r12
  cmp    0x28(%rsp),%r12
  jne    L128
  mov    0x8(%rsp),%r9
  mov    %rbp,%r14
L87:
  mov    %r14,%rdi
  mov    %r9,(%rsp)
  call   <freeMemory@plt>
  mov    (%rsp),%rdi
  add    $0x38,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    10a0 <freeMemory@plt>
  nopl   0x0(%rax)
L119:
  movzbl (%rcx),%edx
  add    $0x1,%rax
  add    %rbx,%rcx
  mov    %dl,-0x1(%rax)
  cmp    %r13,%rax
  jne    L119
  jmp    L108
  nopw   0x0(%rax,%rax,1)
L86:
  movzbl (%rax),%edx
  add    $0x1,%rax
  mov    %dl,(%rcx)
  add    %rbx,%rcx
  cmp    %r15,%rax
  jne    L86
  jmp    L53
L90:
  add    $0x38,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void blurYAlpha(unsigned char *img, int width, int height, int distance, unsigned char borderAlpha, int rx, int ry, int rw, int rh) {
  if (distance < 1) {
    return;
  }
  unsigned char *src = img + (ry * width) + rx;
  int dist2 = distance << 1;
  int windowLength = dist2 + 1;
  unsigned char *lineBufferIn = allocMemory(rh + dist2);
  clearMemory(lineBufferIn, borderAlpha, dist2);
  clearMemory(lineBufferIn + rh, borderAlpha, dist2);
  unsigned char *lineBufferOut = allocMemory(rh);
  clearMemory(lineBufferOut, 0, rh);
  unsigned char *psrc;
  unsigned char *pline;
  int srcOffs = distance * width;
  int x, y;
  for (x = 0; x < rw; ++x) {
    psrc = src + srcOffs;
    pline = lineBufferIn + dist2;
    for (y = 0; y < rh - dist2; ++y) {
      *pline++ = *psrc;
      psrc += width;
    }
    boxBlurAlpha(lineBufferOut, lineBufferIn, rh, windowLength);
    psrc = src;
    pline = lineBufferOut;
    for (y = 0; y < rh; ++y) {
      *psrc = *pline++;
      psrc += width;
    }
    src++;
  }
  freeMemory(lineBufferOut);
  freeMemory(lineBufferIn);
}
```