user: 这段汇编代码用C语言表示是什么样的：

```asm
<fftcxf>:
  endbr64
  push   %r15
  push   %r14
  mov    %r8d,%r14d
  push   %r13
  push   %r12
  mov    %ecx,%r12d
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  cmp    %edx,%ecx
  jg     L91
  test   %r14d,%r14d
  jne    L142
L77:
  movsd  D5(%rip),%xmm0
  mov    %rbx,%rsi
  mov    %rbp,%rdx
  mov    %r12d,%edi
  call   <fft@plt>
  mov    %r12d,%esi
  shr    $0x1f,%esi
  add    %r12d,%esi
  sar    %esi
  cmp    $0x1,%r12d
  jle    L35
  movslq %esi,%rdi
  lea    0x10(%rbx),%r13
  lea    0x10(%rbp),%r11
  lea    0x10(,%rdi,4),%rax
  lea    -0x10(%rax),%rdx
  lea    (%rbx,%rax,1),%r14
  lea    0x0(%rbp,%rax,1),%r9
  lea    0x0(%rbp,%rdx,1),%rcx
  add    %rbx,%rdx
  test   %rax,%rax
  lea    0xf(%rbx),%rax
  setle  %r10b
  sub    %rbp,%rax
  cmp    $0x1e,%rax
  seta   %r8b
  cmp    $0x3,%r12d
  setg   %al
  and    %eax,%r8d
  cmp    %r14,%rcx
  setae  %al
  cmp    %rdx,%r9
  setbe  %r15b
  or     %r15d,%eax
  and    %eax,%r8d
  cmp    %r13,%rdx
  setae  %al
  or     %r10d,%eax
  and    %eax,%r8d
  cmp    %r14,%rbp
  setae  %al
  cmp    %r11,%rdx
  setae  %r14b
  or     %r14d,%eax
  and    %eax,%r8d
  cmp    %r13,%rcx
  setae  %al
  cmp    %r9,%rbx
  setae  %r9b
  or     %r9d,%eax
  test   %al,%r8b
  je     L139
  cmp    %r11,%rcx
  setae  %al
  or     %r10b,%al
  je     L139
  cmp    $0x7,%r12d
  jle    L62
  mov    %esi,%r8d
  xor    %eax,%eax
  shr    $0x2,%r8d
  shl    $0x4,%r8
  nopl   0x0(%rax,%rax,1)
L124:
  movups (%rbx,%rax,1),%xmm0
  movups (%rdx,%rax,1),%xmm2
  movups %xmm2,(%rbx,%rax,1)
  movups %xmm0,(%rdx,%rax,1)
  movups 0x0(%rbp,%rax,1),%xmm0
  movups (%rcx,%rax,1),%xmm3
  movups %xmm3,0x0(%rbp,%rax,1)
  movups %xmm0,(%rcx,%rax,1)
  add    $0x10,%rax
  cmp    %r8,%rax
  jne    L124
  mov    %esi,%edx
  and    $0xfffffffc,%edx
  mov    %edx,%eax
  cmp    %edx,%esi
  je     L35
L65:
  mov    %esi,%r8d
  sub    %edx,%r8d
  cmp    $0x1,%r8d
  je     L116
  lea    0x0(,%rdx,4),%rcx
  add    %rdi,%rdx
  shl    $0x2,%rdx
  lea    (%rbx,%rcx,1),%r9
  add    %rbp,%rcx
  lea    (%rbx,%rdx,1),%rdi
  mov    (%r9),%r10
  add    %rbp,%rdx
  mov    (%rdi),%r11
  mov    %r11,(%r9)
  mov    %r10,(%rdi)
  mov    (%rdx),%r9
  mov    (%rcx),%rdi
  mov    %r9,(%rcx)
  mov    %rdi,(%rdx)
  mov    %r8d,%edx
  and    $0xfffffffe,%edx
  add    %edx,%eax
  cmp    %edx,%r8d
  je     L35
L116:
  movslq %eax,%rdx
  add    %esi,%eax
  cltq
  shl    $0x2,%rdx
  shl    $0x2,%rax
  lea    (%rbx,%rdx,1),%rcx
  add    %rbp,%rdx
  add    %rax,%rbx
  movss  (%rcx),%xmm0
  add    %rbp,%rax
  movss  (%rbx),%xmm1
  movss  %xmm1,(%rcx)
  movss  %xmm0,(%rbx)
  movss  (%rdx),%xmm0
  movss  (%rax),%xmm1
  movss  %xmm1,(%rdx)
  movss  %xmm0,(%rax)
L35:
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  xchg   %ax,%ax
L91:
  mov    %ecx,%r15d
  xor    %esi,%esi
  sub    %edx,%r15d
  movslq %edx,%rdx
  shl    $0x2,%r15d
  lea    0x0(,%rdx,4),%r13
  lea    (%rdi,%r13,1),%rdi
  mov    %r15d,%edx
  call   <memset@plt>
  xor    %esi,%esi
  lea    0x0(%rbp,%r13,1),%rdi
  mov    %r15d,%edx
  call   <memset@plt>
  test   %r14d,%r14d
  je     L77
L142:
  mov    %r14d,%ecx
  mov    %r12d,%edx
  mov    %rbx,%rdi
  mov    $0x1,%esi
  call   <xxrotate@plt>
  mov    %r14d,%ecx
  mov    %r12d,%edx
  mov    $0x1,%esi
  mov    %rbp,%rdi
  call   <xxrotate@plt>
  jmp    L77
  cs nopw 0x0(%rax,%rax,1)
L139:
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L47:
  movss  (%rbx,%rax,4),%xmm0
  movss  (%rdx,%rax,4),%xmm1
  movss  %xmm1,(%rbx,%rax,4)
  movss  %xmm0,(%rdx,%rax,4)
  movss  0x0(%rbp,%rax,4),%xmm0
  movss  (%rcx,%rax,4),%xmm1
  movss  %xmm1,0x0(%rbp,%rax,4)
  movss  %xmm0,(%rcx,%rax,4)
  add    $0x1,%rax
  cmp    %eax,%esi
  jg     L47
  jmp    L35
L62:
  xor    %edx,%edx
  xor    %eax,%eax
  jmp    L65
```

tool_calls: name: parse_data
arguments: label: D5
data_type: f64

tool: D5: 1

assistant: ```c
int fftcxf(float *xrr, float *xri, int isize, int ntot, int rotate) {
  int i, idum;
  if (ntot > isize) {
    memset(xrr + isize, 0, sizeof(float) * (ntot - isize));
    memset(xri + isize, 0, sizeof(float) * (ntot - isize));
  }
  if (rotate) {
    xxrotate(xrr, 1, ntot, rotate);
    xxrotate(xri, 1, ntot, rotate);
  }
  fft(1.0, ntot, xrr, xri);
  idum = ntot / 2;
  for (i = 0; i < idum; i++) {
    float xdum;
    xdum = xrr[i];
    xrr[i] = xrr[i + idum];
    xrr[i + idum] = xdum;
    xdum = xri[i];
    xri[i] = xri[i + idum];
    xri[i + idum] = xdum;
  }
  return ntot;
}
```