user: 这段汇编代码用C语言表示是什么样的：

```asm
<update_only_a>:
  endbr64
  mov    %rdx,%rax
  mov    %rcx,%r10
  sub    %rdi,%rax
  add    $0xc,%rax
  cmp    $0x8,%rax
  jbe    L7
  movups 0xf0(%rdi),%xmm5
  movups %xmm5,0xf0(%rdx)
  movups 0xe0(%rdi),%xmm6
  movups %xmm6,0xe0(%rdx)
  movups 0xd0(%rdi),%xmm7
  movups %xmm7,0xd0(%rdx)
  movups 0xc0(%rdi),%xmm5
  movups %xmm5,0xc0(%rdx)
  movups 0xb0(%rdi),%xmm6
  movups %xmm6,0xb0(%rdx)
  movups 0xa0(%rdi),%xmm7
  movups %xmm7,0xa0(%rdx)
  movups 0x90(%rdi),%xmm5
  movups %xmm5,0x90(%rdx)
  movups 0x80(%rdi),%xmm6
  movups %xmm6,0x80(%rdx)
  movups 0x70(%rdi),%xmm7
  movups %xmm7,0x70(%rdx)
  movups 0x60(%rdi),%xmm1
  movups %xmm1,0x60(%rdx)
  movups 0x50(%rdi),%xmm2
  movups %xmm2,0x50(%rdx)
  movups 0x40(%rdi),%xmm3
  movups %xmm3,0x40(%rdx)
  movups 0x30(%rdi),%xmm4
  movups %xmm4,0x30(%rdx)
  movups 0x20(%rdi),%xmm5
  movups %xmm5,0x20(%rdx)
  movups 0x10(%rdi),%xmm6
  movups %xmm6,0x10(%rdx)
  movups (%rdi),%xmm7
  movups %xmm7,(%rdx)
L42:
  mov    0x4(%r10),%esi
  lea    0x100(%rdi),%r8
  add    $0x100,%rdx
  cmp    $0x3,%esi
  je     L88
  lea    0x8(%r10),%r9
  xor    %eax,%eax
  cs nopw 0x0(%rax,%rax,1)
L47:
  test   %esi,%esi
  je     L134
  test   $0x1,%sil
  je     L5
  lea    0x8(%rdx),%rdi
  mov    %rdx,%rcx
  movq   $0x0,(%rdx)
  movq   $0x0,0xf8(%rdx)
  and    $0xfffffffffffffff8,%rdi
  sub    %rdi,%rcx
  add    $0x100,%ecx
  shr    $0x3,%ecx
  rep stos %rax,%es:(%rdi)
  nopw   0x0(%rax,%rax,1)
L5:
  and    $0x2,%esi
  jne    L100
L178:
  mov    (%r9),%esi
  add    $0x4,%r9
  add    $0x100,%rdx
  cmp    $0x3,%esi
  jne    L47
L88:
  mov    %rdx,%rax
  sub    %r8,%rax
  add    $0xc,%rax
  cmp    $0x8,%rax
  jbe    L15
  movups 0xf0(%r8),%xmm1
  movups %xmm1,0xf0(%rdx)
  movups 0xe0(%r8),%xmm2
  movups %xmm2,0xe0(%rdx)
  movups 0xd0(%r8),%xmm3
  movups %xmm3,0xd0(%rdx)
  movups 0xc0(%r8),%xmm4
  movups %xmm4,0xc0(%rdx)
  movups 0xb0(%r8),%xmm5
  movups %xmm5,0xb0(%rdx)
  movups 0xa0(%r8),%xmm6
  movups %xmm6,0xa0(%rdx)
  movups 0x90(%r8),%xmm7
  movups %xmm7,0x90(%rdx)
  movups 0x80(%r8),%xmm1
  movups %xmm1,0x80(%rdx)
  movups 0x70(%r8),%xmm2
  movups %xmm2,0x70(%rdx)
  movups 0x60(%r8),%xmm3
  movups %xmm3,0x60(%rdx)
  movups 0x50(%r8),%xmm4
  movups %xmm4,0x50(%rdx)
  movups 0x40(%r8),%xmm5
  movups %xmm5,0x40(%rdx)
  movups 0x30(%r8),%xmm6
  movups %xmm6,0x30(%rdx)
  movups 0x20(%r8),%xmm7
  movups %xmm7,0x20(%rdx)
  movups 0x10(%r8),%xmm1
  movups %xmm1,0x10(%rdx)
  movups (%r8),%xmm2
  movups %xmm2,(%rdx)
L118:
  mov    (%r10),%ecx
  mov    %rdx,%rax
  add    $0x1,%ecx
  shl    $0x6,%ecx
  movslq %ecx,%rcx
  shl    $0x2,%rcx
  sub    %rcx,%rax
  ret
  nopl   (%rax)
L100:
  mov    %rdx,%rcx
  sub    %r8,%rcx
  add    $0xc,%rcx
  cmp    $0x8,%rcx
  jbe    L39
  movups 0xf0(%r8),%xmm3
  movups %xmm3,0xf0(%rdx)
  movups 0xe0(%r8),%xmm4
  movups %xmm4,0xe0(%rdx)
  movups 0xd0(%r8),%xmm5
  movups %xmm5,0xd0(%rdx)
  movups 0xc0(%r8),%xmm6
  movups %xmm6,0xc0(%rdx)
  movups 0xb0(%r8),%xmm7
  movups %xmm7,0xb0(%rdx)
  movups 0xa0(%r8),%xmm1
  movups %xmm1,0xa0(%rdx)
  movups 0x90(%r8),%xmm2
  movups %xmm2,0x90(%rdx)
  movups 0x80(%r8),%xmm3
  movups %xmm3,0x80(%rdx)
  movups 0x70(%r8),%xmm4
  movups %xmm4,0x70(%rdx)
  movups 0x60(%r8),%xmm5
  movups %xmm5,0x60(%rdx)
  movups 0x50(%r8),%xmm6
  movups %xmm6,0x50(%rdx)
  movups 0x40(%r8),%xmm7
  movups %xmm7,0x40(%rdx)
  movups 0x30(%r8),%xmm1
  movups %xmm1,0x30(%rdx)
  movups 0x20(%r8),%xmm2
  movups %xmm2,0x20(%rdx)
  movups 0x10(%r8),%xmm3
  movups %xmm3,0x10(%rdx)
  movups (%r8),%xmm4
  movups %xmm4,(%rdx)
L173:
  add    $0x100,%r8
  jmp    L178
  cs nopw 0x0(%rax,%rax,1)
L134:
  mov    %rdx,%rcx
  sub    %r8,%rcx
  add    $0xc,%rcx
  cmp    $0x8,%rcx
  jbe    L81
  movups 0xf0(%r8),%xmm1
  movups %xmm1,0xf0(%rdx)
  movups 0xe0(%r8),%xmm2
  movups %xmm2,0xe0(%rdx)
  movups 0xd0(%r8),%xmm3
  movups %xmm3,0xd0(%rdx)
  movups 0xc0(%r8),%xmm4
  movups %xmm4,0xc0(%rdx)
  movups 0xb0(%r8),%xmm5
  movups %xmm5,0xb0(%rdx)
  movups 0xa0(%r8),%xmm6
  movups %xmm6,0xa0(%rdx)
  movups 0x90(%r8),%xmm7
  movups %xmm7,0x90(%rdx)
  movups 0x80(%r8),%xmm1
  movups %xmm1,0x80(%rdx)
  movups 0x70(%r8),%xmm2
  movups %xmm2,0x70(%rdx)
  movups 0x60(%r8),%xmm3
  movups %xmm3,0x60(%rdx)
  movups 0x50(%r8),%xmm4
  movups %xmm4,0x50(%rdx)
  movups 0x40(%r8),%xmm5
  movups %xmm5,0x40(%rdx)
  movups 0x30(%r8),%xmm6
  movups %xmm6,0x30(%rdx)
  movups 0x20(%r8),%xmm7
  movups %xmm7,0x20(%rdx)
  movups 0x10(%r8),%xmm1
  movups %xmm1,0x10(%rdx)
  movups (%r8),%xmm2
  movups %xmm2,(%rdx)
  jmp    L173
L39:
  mov    $0xfc,%ecx
  nopl   0x0(%rax)
L185:
  movss  (%r8,%rcx,1),%xmm0
  movss  %xmm0,(%rdx,%rcx,1)
  sub    $0x4,%rcx
  cmp    $0xfffffffffffffffc,%rcx
  jne    L185
  jmp    L173
L81:
  mov    $0xfc,%ecx
  nop
L135:
  movss  (%r8,%rcx,1),%xmm0
  movss  %xmm0,(%rdx,%rcx,1)
  sub    $0x4,%rcx
  cmp    $0xfffffffffffffffc,%rcx
  jne    L135
  jmp    L173
L15:
  mov    $0xfc,%eax
  nop
L184:
  movss  (%r8,%rax,1),%xmm0
  movss  %xmm0,(%rdx,%rax,1)
  sub    $0x4,%rax
  cmp    $0xfffffffffffffffc,%rax
  jne    L184
  jmp    L118
L7:
  mov    $0xfc,%eax
  nop
L143:
  movss  (%rdi,%rax,1),%xmm0
  movss  %xmm0,(%rdx,%rax,1)
  sub    $0x4,%rax
  cmp    $0xfffffffffffffffc,%rax
  jne    L143
  jmp    L42
```

assistant: ```c
float *update_only_a(const float *profa, const float *profb, float *newp, int *path, int sipa, int sipb) {
  int i, c;
  for (i = 64; i--;) {
    newp[i] = profa[i];
  }
  profa += 64;
  profb += 64;
  newp += 64;
  c = 1;
  while (path[c] != 3) {
    if (!path[c]) {
      for (i = 64; i--;) {
        newp[i] = profa[i];
      }
      profa += 64;
      profb += 64;
    }
    if (path[c] & 1) {
      for (i = 64; i--;) {
        newp[i] = 0.0;
      }
      profb += 64;
    }
    if (path[c] & 2) {
      for (i = 64; i--;) {
        newp[i] = profa[i];
      }
      profa += 64;
    }
    newp += 64;
    c++;
  }
  for (i = 64; i--;) {
    newp[i] = profa[i];
  }
  newp -= (path[0] + 1) * 64;
  return newp;
}
```