user: 下面的汇编指令对应的C源代码是什么：

```asm
<rmean_and_taper>:
  endbr64
  push   %r13
  mov    %rsi,%rcx
  mov    %rdi,%r13
  movaps %xmm0,%xmm4
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  test   %edx,%edx
  je     L9
  test   %rsi,%rsi
  jle    L9
  pxor   %xmm7,%xmm7
  cvtsi2ss %rsi,%xmm7
  lea    -0x1(%rsi),%rsi
  cmp    $0x2,%rsi
  jbe    L18
  mov    %rcx,%rdx
  pxor   %xmm5,%xmm5
  movaps %xmm7,%xmm6
  mov    %rdi,%rax
  shr    $0x2,%rdx
  movaps %xmm5,%xmm3
  shufps $0x0,%xmm6,%xmm6
  shl    $0x4,%rdx
  add    %rdi,%rdx
  xchg   %ax,%ax
L135:
  movups (%rax),%xmm0
  add    $0x10,%rax
  divps  %xmm6,%xmm0
  movaps %xmm0,%xmm2
  addss  %xmm3,%xmm2
  movaps %xmm0,%xmm3
  shufps $0x55,%xmm0,%xmm3
  addss  %xmm3,%xmm2
  movaps %xmm0,%xmm3
  unpckhps %xmm0,%xmm3
  shufps $0xff,%xmm0,%xmm0
  addss  %xmm3,%xmm2
  addss  %xmm0,%xmm2
  movaps %xmm2,%xmm3
  cmp    %rax,%rdx
  jne    L135
  mov    %rcx,%rax
  and    $0xfffffffffffffffc,%rax
  test   $0x3,%cl
  je     L141
L63:
  movss  0x0(%r13,%rax,4),%xmm0
  lea    0x1(%rax),%rdi
  lea    0x0(,%rax,4),%rdx
  divss  %xmm7,%xmm0
  addss  %xmm0,%xmm3
  cmp    %rcx,%rdi
  jge    L24
  movss  0x4(%r13,%rdx,1),%xmm0
  add    $0x2,%rax
  divss  %xmm7,%xmm0
  addss  %xmm0,%xmm3
  cmp    %rax,%rcx
  jle    L24
  movss  0x8(%r13,%rdx,1),%xmm0
  divss  %xmm7,%xmm0
  addss  %xmm0,%xmm3
L24:
  cmp    $0x2,%rsi
  jbe    L111
L141:
  mov    %rcx,%rdx
  movaps %xmm3,%xmm2
  mov    %r13,%rax
  shr    $0x2,%rdx
  shufps $0x0,%xmm2,%xmm2
  shl    $0x4,%rdx
  add    %r13,%rdx
  nopl   0x0(%rax,%rax,1)
L12:
  movups (%rax),%xmm0
  add    $0x10,%rax
  subps  %xmm2,%xmm0
  movups %xmm0,-0x10(%rax)
  cmp    %rax,%rdx
  jne    L12
  mov    %rcx,%rdx
  and    $0xfffffffffffffffc,%rdx
  mov    %rdx,%rax
  cmp    %rcx,%rdx
  je     L170
L116:
  mov    %rcx,%rsi
  sub    %rdx,%rsi
  cmp    $0x1,%rsi
  je     L93
  lea    0x0(%r13,%rdx,4),%rdx
  movaps %xmm3,%xmm2
  movq   (%rdx),%xmm0
  shufps $0xe0,%xmm2,%xmm2
  subps  %xmm2,%xmm0
  movlps %xmm0,(%rdx)
  mov    %rsi,%rdx
  and    $0xfffffffffffffffe,%rdx
  add    %rdx,%rax
  cmp    %rdx,%rsi
  je     L170
L93:
  lea    0x0(%r13,%rax,4),%rax
  comiss %xmm5,%xmm1
  movss  (%rax),%xmm0
  subss  %xmm3,%xmm0
  movss  %xmm0,(%rax)
  ja     L82
L22:
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L9:
  pxor   %xmm5,%xmm5
L170:
  comiss %xmm5,%xmm1
  jbe    L22
  nopl   0x0(%rax)
L82:
  divss  %xmm4,%xmm1
  comiss D2(%rip),%xmm1
  jae    L132
  cvttss2si %xmm1,%rbp
L131:
  mov    %rcx,%rax
  shr    $0x3f,%rax
  add    %rcx,%rax
  sar    %rax
  cmp    %rax,%rbp
  cmovg  %rax,%rbp
  test   %rbp,%rbp
  jle    L22
  lea    0x1(%rbp),%rax
  pxor   %xmm0,%xmm0
  lea    -0x4(%r13,%rcx,4),%r12
  xor    %ebx,%ebx
  cvtsi2ss %rax,%xmm0
  cvtss2sd %xmm0,%xmm0
  addsd  %xmm0,%xmm0
  movsd  %xmm0,0x8(%rsp)
  nopl   0x0(%rax)
L166:
  add    $0x1,%rbx
  pxor   %xmm0,%xmm0
  sub    $0x4,%r12
  cvtsi2sd %rbx,%xmm0
  mulsd  D20(%rip),%xmm0
  divsd  0x8(%rsp),%xmm0
  cvttsd2si %xmm0,%rdi
  call   <sin@plt>
  movss  -0x4(%r13,%rbx,4),%xmm1
  mulss  %xmm0,%xmm1
  movss  %xmm1,-0x4(%r13,%rbx,4)
  mulss  0x4(%r12),%xmm0
  movss  %xmm0,0x4(%r12)
  cmp    %rbx,%rbp
  jne    L166
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L132:
  subss  D2(%rip),%xmm1
  cvttss2si %xmm1,%rbp
  btc    $0x3f,%rbp
  jmp    L131
L18:
  pxor   %xmm5,%xmm5
  xor    %eax,%eax
  movaps %xmm5,%xmm3
  jmp    L63
L111:
  xor    %edx,%edx
  xor    %eax,%eax
  jmp    L116
```

tool_calls: name: retrieve_data
arguments: tag: D2
type_infered: byte[4]
name: retrieve_data
arguments: tag: D20
type_infered: f64

tool: {"D2": [0x00,0x00,0x00,0x5f]}

tool: D20: 3.1415926535897

assistant: ```c
void rmean_and_taper(float data[], long int len, float del, int rmean, float taperlen) {
  long i;
  float mean, fac;
  long talen;
  if (rmean) {
    mean = 0;
    for (i = 0; i < len; i++)
      mean += data[i] / len;
    for (i = 0; i < len; i++)
      data[i] -= mean;
  }
  if (taperlen > 0.0) {
    talen = (unsigned long int)(taperlen / del);
    if (talen > len / 2)
      talen = len / 2;
    for (i = 0; i < talen; i++) {
      fac = sin((i + 1) * 3.1415926535897 / (2. * (float)(talen + 1)));
      data[i] *= fac;
      data[len - i - 1] *= fac;
    }
  }
}
```