user: Translate the below assembly code into C programming language:

```asm
<iswt_conv_step>:
  endbr64
  push   %r15
  pxor   %xmm0,%xmm0
  push   %r14
  cvtsi2sd %edx,%xmm0
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %r9,%rbx
  sub    $0x78,%rsp
  mulsd  D41(%rip),%xmm0
  mov    0xb0(%rsp),%r9
  mov    %rdi,0x8(%rsp)
  mov    %r8d,0x44(%rsp)
  mov    %r9,0x38(%rsp)
  mov    %rsi,0x18(%rsp)
  mov    %rcx,(%rsp)
  cvttsd2si %xmm0,%edi
  mov    %fs:0x28,%rax
  mov    %rax,0x68(%rsp)
  xor    %eax,%eax
  mov    %edx,0x40(%rsp)
  call   <floor@plt>
  lea    0x0(,%rax,8),%r15d
  mov    %eax,%ebp
  mov    %rax,0x10(%rsp)
  mov    %r15d,%edi
  call   <malloc@plt>
  mov    %r15d,%edi
  mov    %rax,%r12
  call   <malloc@plt>
  mov    %r15d,%edi
  mov    %rax,%r13
  call   <malloc@plt>
  mov    %r15d,%edi
  mov    %rax,%r14
  call   <malloc@plt>
  mov    0x40(%rsp),%esi
  mov    0x8(%rsp),%rdi
  mov    %ebp,%ecx
  mov    %r12,%rdx
  mov    %rax,%r15
  call   <dyaddown_1D_keep_odd@plt>
  mov    0x40(%rsp),%esi
  mov    0x8(%rsp),%rdi
  mov    %ebp,%ecx
  mov    %r14,%rdx
  call   <dyaddown_1D_keep_even@plt>
  mov    0x18(%rsp),%r11
  mov    0x40(%rsp),%esi
  mov    %ebp,%ecx
  mov    %r13,%rdx
  mov    %r11,%rdi
  mov    %r11,0x8(%rsp)
  call   <dyaddown_1D_keep_odd@plt>
  mov    0x40(%rsp),%esi
  mov    0x8(%rsp),%rdi
  mov    %ebp,%ecx
  mov    %r15,%rdx
  call   <dyaddown_1D_keep_even@plt>
  mov    0x10(%rsp),%r8
  mov    %r8d,%ebp
  lea    (%r8,%r8,1),%eax
  mov    %r8,0x18(%rsp)
  shl    $0x4,%ebp
  mov    %eax,0x10(%rsp)
  mov    %ebp,%edi
  call   <malloc@plt>
  mov    %ebp,%edi
  mov    %rax,0x8(%rsp)
  call   <malloc@plt>
  mov    %ebp,%edi
  mov    %ebp,0x20(%rsp)
  mov    %rax,0x28(%rsp)
  call   <malloc@plt>
  mov    0x20(%rsp),%edi
  mov    %rax,%rbp
  call   <malloc@plt>
  mov    0x18(%rsp),%r8
  mov    0x8(%rsp),%r10
  mov    %rax,0x30(%rsp)
  mov    0x38(%rsp),%r9
  test   %r8d,%r8d
  jle    L170
  mov    %rax,%rsi
  mov    0x28(%rsp),%rcx
  lea    -0x1(%r8),%eax
  lea    0x8(,%rax,8),%rdx
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L217:
  movsd  (%r12,%rax,1),%xmm0
  movsd  %xmm0,(%r10,%rax,2)
  movsd  0x0(%r13,%rax,1),%xmm0
  movsd  %xmm0,0x0(%rbp,%rax,2)
  movq   $0x0,0x8(%r10,%rax,2)
  movq   $0x0,0x8(%rbp,%rax,2)
  movq   $0x0,(%rcx,%rax,2)
  movq   $0x0,(%rsi,%rax,2)
  movsd  (%r14,%rax,1),%xmm0
  movsd  %xmm0,0x8(%rcx,%rax,2)
  movsd  (%r15,%rax,1),%xmm0
  movsd  %xmm0,0x8(%rsi,%rax,2)
  add    $0x8,%rax
  cmp    %rdx,%rax
  jne    L217
L170:
  mov    %r12,%rdi
  mov    %r9,0x18(%rsp)
  mov    %r10,0x8(%rsp)
  call   <free@plt>
  mov    %r13,%rdi
  call   <free@plt>
  mov    %r14,%rdi
  call   <free@plt>
  mov    %r15,%rdi
  call   <free@plt>
  mov    0xc0(%rsp),%eax
  lea    0x64(%rsp),%rsi
  lea    -0x1(%rax),%edi
  call   <swt_exp2@plt>
  mov    0x8(%rsp),%r10
  mov    0x18(%rsp),%r9
  cmpl   $0x1,0xc0(%rsp)
  je     L155
  mov    0x64(%rsp),%eax
  mov    %eax,0xc0(%rsp)
  sub    $0x1,%eax
  mov    %eax,0x18(%rsp)
  mov    0xc0(%rsp),%eax
  imul   0xb8(%rsp),%eax
  mov    %eax,0x8(%rsp)
  mov    %eax,%r15d
L232:
  lea    0x0(,%r15,8),%r12d
  movslq %r15d,%rax
  mov    %r9,0x50(%rsp)
  mov    %r12d,%edi
  mov    %r10,0x48(%rsp)
  mov    %rax,0x38(%rsp)
  call   <malloc@plt>
  mov    %r12d,%edi
  mov    %rax,%r14
  call   <malloc@plt>
  test   %r15d,%r15d
  mov    0x48(%rsp),%r10
  mov    0x50(%rsp),%r9
  mov    %rax,%r13
  jle    L48
  mov    0x38(%rsp),%rax
  lea    0x0(,%rax,8),%r12
  lea    0x0(%r13,%r12,1),%rax
  cmp    %rax,%r14
  jae    L339
  lea    (%r14,%r12,1),%rax
  cmp    %rax,%r13
  jb     L439
L339:
  mov    %r12,%rdx
  xor    %esi,%esi
  mov    %r14,%rdi
  mov    %r9,0x50(%rsp)
  mov    %r10,0x48(%rsp)
  call   <memset@plt>
  mov    %r12,%rdx
  xor    %esi,%esi
  mov    %r13,%rdi
  call   <memset@plt>
  mov    0x48(%rsp),%r10
  mov    0x50(%rsp),%r9
L48:
  mov    0xb8(%rsp),%edx
  test   %edx,%edx
  jle    L231
  cmpl   $0x1,0xc0(%rsp)
  jne    L280
  lea    0x8(%rbx),%rdx
  mov    0xb8(%rsp),%edi
  cmp    %rdx,%r14
  setne  %al
  cmp    %rdx,%r13
  setne  %dl
  and    %edx,%eax
  lea    -0x1(%rdi),%edx
  cmp    $0x1,%edx
  seta   %dl
  and    %edx,%eax
  lea    0x8(%r9),%rdx
  cmp    %rdx,%r13
  setne  %dl
  and    %edx,%eax
  lea    0x8(%r14),%rdx
  cmp    %rdx,%r13
  setne  %dl
  test   %dl,%al
  je     L11
  lea    0xf(%r14),%rax
  sub    %r9,%rax
  cmp    $0x1e,%rax
  jbe    L11
  mov    %edi,%edx
  xor    %eax,%eax
  shr    %edx
  shl    $0x4,%rdx
  nopl   (%rax)
L438:
  movupd (%rbx,%rax,1),%xmm6
  movups %xmm6,(%r14,%rax,1)
  movupd (%r9,%rax,1),%xmm7
  movups %xmm7,0x0(%r13,%rax,1)
  add    $0x10,%rax
  cmp    %rdx,%rax
  jne    L438
  mov    0xb8(%rsp),%eax
  and    $0xfffffffe,%eax
  testb  $0x1,0xb8(%rsp)
  je     L231
  movsd  (%rbx,%rax,8),%xmm0
  movsd  %xmm0,(%r14,%rax,8)
  movsd  (%r9,%rax,8),%xmm0
  movsd  %xmm0,0x0(%r13,%rax,8)
L231:
  mov    0x20(%rsp),%r12d
  mov    %r10,0x50(%rsp)
  mov    %r12d,%edi
  call   <malloc@plt>
  mov    %r12d,%edi
  mov    %rax,%r15
  call   <malloc@plt>
  mov    %r12d,%edi
  mov    %r12d,0x20(%rsp)
  mov    %rax,%rbx
  call   <malloc@plt>
  mov    0x20(%rsp),%edi
  mov    %rax,%r12
  call   <malloc@plt>
  mov    0x50(%rsp),%r10
  mov    %r14,%r8
  mov    %r15,%rdx
  mov    0x10(%rsp),%ecx
  mov    0x8(%rsp),%r9d
  mov    %rax,0x48(%rsp)
  mov    %r10,%rdi
  mov    %r10,0x20(%rsp)
  mov    %ecx,%esi
  call   <i_conv@plt>
  mov    0x10(%rsp),%ecx
  mov    %r13,%r8
  mov    %rbx,%rdx
  mov    0x8(%rsp),%r9d
  mov    %rbp,%rdi
  mov    %ecx,%esi
  call   <i_conv@plt>
  mov    0x10(%rsp),%eax
  mov    0x20(%rsp),%r10
  mov    0x48(%rsp),%r11
  test   %eax,%eax
  jle    L390
  mov    0x10(%rsp),%edi
  lea    0x8(%rbx),%rcx
  mov    %rcx,0x50(%rsp)
  lea    -0x1(%rdi),%eax
  cmp    $0x1,%eax
  lea    0x8(%r15),%rax
  seta   0x20(%rsp)
  cmp    %rax,%r12
  movzbl 0x20(%rsp),%esi
  setne  %dl
  cmp    %rcx,%r12
  mov    %rax,0x48(%rsp)
  setne  %al
  test   %al,%dl
  je     L296
  test   %sil,%sil
  je     L296
  shr    %edi
  xor    %eax,%eax
  mov    %edi,%edx
  shl    $0x4,%rdx
L365:
  movupd (%r15,%rax,1),%xmm0
  movupd (%rbx,%rax,1),%xmm2
  addpd  %xmm2,%xmm0
  movups %xmm0,(%r12,%rax,1)
  add    $0x10,%rax
  cmp    %rax,%rdx
  jne    L365
L163:
  mov    %r10,%rdi
  mov    %r11,0x58(%rsp)
  call   <free@plt>
  mov    %rbp,%rdi
  call   <free@plt>
  mov    0x10(%rsp),%ebp
  mov    %r14,%r8
  mov    %r15,%rdx
  mov    0x8(%rsp),%r9d
  mov    0x28(%rsp),%rdi
  mov    %ebp,%ecx
  mov    %ebp,%esi
  call   <i_conv@plt>
  mov    0x8(%rsp),%r9d
  mov    %rbx,%rdx
  mov    %r13,%r8
  mov    0x30(%rsp),%rdi
  mov    %ebp,%ecx
  mov    %ebp,%esi
  call   <i_conv@plt>
  mov    0x58(%rsp),%r11
  cmp    0x48(%rsp),%r11
  setne  %dl
  cmp    0x50(%rsp),%r11
  setne  %al
  test   %al,%dl
  je     L378
  cmpb   $0x0,0x20(%rsp)
  je     L378
  mov    0x10(%rsp),%edx
  xor    %eax,%eax
  shr    %edx
  shl    $0x4,%rdx
  nopl   0x0(%rax)
L323:
  movupd (%r15,%rax,1),%xmm0
  movupd (%rbx,%rax,1),%xmm3
  addpd  %xmm3,%xmm0
  movups %xmm0,(%r11,%rax,1)
  add    $0x10,%rax
  cmp    %rdx,%rax
  jne    L323
L189:
  mov    0x28(%rsp),%rdi
  mov    %r11,0x10(%rsp)
  call   <free@plt>
  mov    0x30(%rsp),%rdi
  call   <free@plt>
  mov    %r15,%rdi
  call   <free@plt>
  mov    %rbx,%rdi
  call   <free@plt>
  mov    %r14,%rdi
  call   <free@plt>
  mov    %r13,%rdi
  call   <free@plt>
  mov    0x40(%rsp),%ecx
  sub    0x8(%rsp),%ecx
  sub    0x18(%rsp),%ecx
  mov    0x10(%rsp),%r11
  lea    -0x1(%rcx),%edx
  cmp    0x44(%rsp),%edx
  jge    L407
  movslq 0x40(%rsp),%rsi
  movslq 0x18(%rsp),%rax
  add    0x38(%rsp),%rax
  mov    (%rsp),%r10
  sub    %rax,%rsi
  mov    0x44(%rsp),%edi
  shl    $0x3,%rsi
  lea    (%r12,%rsi,1),%rax
  sub    %ecx,%edi
  cmp    %rax,%r10
  lea    (%r11,%rsi,1),%rax
  setne  %r8b
  cmp    %rax,%r10
  setne  %al
  test   %al,%r8b
  je     L435
  cmp    $0x1,%edi
  jbe    L435
  add    $0x1,%edi
  sub    $0x8,%rsi
  movapd D41(%rip),%xmm1
  xor    %eax,%eax
  mov    %edi,%r8d
  lea    (%r12,%rsi,1),%r9
  add    %r11,%rsi
  shr    %r8d
  shl    $0x4,%r8
  nopl   (%rax)
L309:
  movupd (%r9,%rax,1),%xmm0
  movupd (%rsi,%rax,1),%xmm4
  addpd  %xmm4,%xmm0
  mulpd  %xmm1,%xmm0
  movups %xmm0,(%r10,%rax,1)
  add    $0x10,%rax
  cmp    %r8,%rax
  jne    L309
  mov    %edi,%esi
  and    $0xfffffffe,%esi
  lea    (%rdx,%rsi,1),%eax
  cmp    %esi,%edi
  je     L407
  cltq
  movslq %esi,%rsi
  movsd  (%r12,%rax,8),%xmm0
  addsd  (%r11,%rax,8),%xmm0
  mulsd  D41(%rip),%xmm0
  mov    (%rsp),%rax
  movsd  %xmm0,(%rax,%rsi,8)
L407:
  test   %edx,%edx
  jle    L180
  mov    (%rsp),%rbx
  movslq 0x18(%rsp),%rax
  lea    0x8(%r11),%rdi
  sub    $0x2,%ecx
  add    0x38(%rsp),%rax
  lea    0x8(%rbx,%rax,8),%rsi
  cmp    %rdi,%rsi
  lea    0x8(%r12),%rdi
  setne  %r8b
  cmp    %rdi,%rsi
  setne  %dil
  test   %dil,%r8b
  je     L418
  cmp    $0x1,%ecx
  jbe    L418
  mov    %edx,%ecx
  movapd D41(%rip),%xmm1
  xor    %eax,%eax
  shr    %ecx
  shl    $0x4,%rcx
  nopl   0x0(%rax,%rax,1)
L272:
  movupd (%r11,%rax,1),%xmm0
  movupd (%r12,%rax,1),%xmm5
  addpd  %xmm5,%xmm0
  mulpd  %xmm1,%xmm0
  movups %xmm0,(%rsi,%rax,1)
  add    $0x10,%rax
  cmp    %rax,%rcx
  jne    L272
  mov    %edx,%eax
  and    $0xfffffffe,%eax
  and    $0x1,%edx
  je     L180
  movslq %eax,%rdx
  mov    0x8(%rsp),%ebx
  movsd  (%r11,%rdx,8),%xmm0
  addsd  (%r12,%rdx,8),%xmm0
  mulsd  D41(%rip),%xmm0
  lea    0x1(%rax,%rbx,1),%eax
  mov    (%rsp),%rbx
  add    0x18(%rsp),%eax
  cltq
  movsd  %xmm0,(%rbx,%rax,8)
L180:
  mov    %r12,%rdi
  mov    %r11,(%rsp)
  call   <free@plt>
  mov    (%rsp),%rdi
  call   <free@plt>
  mov    0x68(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L265
  add    $0x78,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L155:
  mov    0xb8(%rsp),%eax
  movl   $0x0,0x18(%rsp)
  mov    %eax,0x8(%rsp)
  mov    %eax,%r15d
  jmp    L232
L439:
  mov    0x38(%rsp),%rdx
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L144:
  movq   $0x0,(%r14,%rax,8)
  movq   $0x0,0x0(%r13,%rax,8)
  add    $0x1,%rax
  cmp    %rax,%rdx
  jne    L144
  jmp    L48
  nop
L280:
  movslq 0xc0(%rsp),%rdx
  movslq 0xb8(%rsp),%rsi
  xor    %ecx,%ecx
  xor    %eax,%eax
  shl    $0x3,%rdx
  nopl   0x0(%rax,%rax,1)
L425:
  movsd  (%rbx,%rax,8),%xmm0
  movsd  %xmm0,(%r14,%rcx,1)
  movsd  (%r9,%rax,8),%xmm0
  add    $0x1,%rax
  movsd  %xmm0,0x0(%r13,%rcx,1)
  add    %rdx,%rcx
  cmp    %rsi,%rax
  jne    L425
  jmp    L231
  nopl   0x0(%rax)
L296:
  mov    0x10(%rsp),%edx
  xor    %eax,%eax
  cs nopw 0x0(%rax,%rax,1)
L148:
  movsd  (%r15,%rax,8),%xmm0
  addsd  (%rbx,%rax,8),%xmm0
  movsd  %xmm0,(%r12,%rax,8)
  add    $0x1,%rax
  cmp    %rdx,%rax
  jne    L148
  jmp    L163
  nop
L378:
  mov    0x10(%rsp),%edx
  xor    %eax,%eax
  cs nopw 0x0(%rax,%rax,1)
L237:
  movsd  (%r15,%rax,8),%xmm0
  addsd  (%rbx,%rax,8),%xmm0
  movsd  %xmm0,(%r11,%rax,8)
  add    $0x1,%rax
  cmp    %rax,%rdx
  jne    L237
  jmp    L189
  nop
L435:
  mov    (%rsp),%rbx
  movslq %ecx,%rsi
  mov    0x44(%rsp),%edi
  movslq %edx,%rax
  neg    %rsi
  lea    (%rbx,%rsi,8),%rsi
  nopl   (%rax)
L392:
  movsd  (%r12,%rax,8),%xmm0
  addsd  (%r11,%rax,8),%xmm0
  mulsd  D41(%rip),%xmm0
  movsd  %xmm0,0x8(%rsi,%rax,8)
  add    $0x1,%rax
  cmp    %eax,%edi
  jg     L392
  jmp    L407
  nop
L418:
  mov    (%rsp),%rbx
  lea    (%rbx,%rax,8),%rsi
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L354:
  movsd  (%r11,%rax,8),%xmm0
  addsd  (%r12,%rax,8),%xmm0
  mov    %rax,%rdx
  mulsd  D41(%rip),%xmm0
  movsd  %xmm0,0x8(%rsi,%rax,8)
  add    $0x1,%rax
  cmp    %rdx,%rcx
  jne    L354
  jmp    L180
  nopl   0x0(%rax,%rax,1)
L11:
  mov    0xb8(%rsp),%edx
  xor    %eax,%eax
  nopl   0x0(%rax)
L423:
  movsd  (%rbx,%rax,8),%xmm0
  movsd  %xmm0,(%r14,%rax,8)
  movsd  (%r9,%rax,8),%xmm0
  movsd  %xmm0,0x0(%r13,%rax,8)
  add    $0x1,%rax
  cmp    %rax,%rdx
  jne    L423
  jmp    L231
  cs nopw 0x0(%rax,%rax,1)
L390:
  mov    %r10,%rdi
  mov    %r11,0x20(%rsp)
  call   <free@plt>
  mov    %rbp,%rdi
  call   <free@plt>
  mov    0x10(%rsp),%ebp
  mov    %r14,%r8
  mov    %r15,%rdx
  mov    0x8(%rsp),%r9d
  mov    0x28(%rsp),%rdi
  mov    %ebp,%ecx
  mov    %ebp,%esi
  call   <i_conv@plt>
  mov    0x8(%rsp),%r9d
  mov    %r13,%r8
  mov    %ebp,%ecx
  mov    0x30(%rsp),%rdi
  mov    %rbx,%rdx
  mov    %ebp,%esi
  call   <i_conv@plt>
  mov    0x20(%rsp),%r11
  jmp    L189
L265:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: data_tag: D41
type_infered: byte[16]

tool: {"D41": [0x00,0x00,0x00,0x00,0x00,0x00,0xe0,0x3f,0x00,0x00,0x00,0x00,0x00,0x00,0xe0,0x3f]}

assistant: ```c
void iswt_conv_step(double *approx, double *detail, int sigInLength, double *sigOut, int sigOutLength, double *filterLow, double *filterHi, int filterLength, int level) {
  int length1, length2, count, twt, mu, su, startpoint;
  double *approxTempOdd, *detailTempOdd;
  double *approxTempEven, *detailTempEven;
  double *approxOutOdd, *detailOutOdd;
  double *approxOutEven, *detailOutEven;
  double *approxT, *detailT;
  double *sigOdd, *sigEven;
  double *filterLowTemp, *filterHiTemp;
  length1 = (int)floor(sigInLength / 2.0);
  approxTempOdd = malloc(length1 * sizeof(double));
  detailTempOdd = malloc(length1 * sizeof(double));
  approxTempEven = malloc(length1 * sizeof(double));
  detailTempEven = malloc(length1 * sizeof(double));
  dyaddown_1D_keep_odd(approx, sigInLength, approxTempOdd, length1);
  dyaddown_1D_keep_even(approx, sigInLength, approxTempEven, length1);
  dyaddown_1D_keep_odd(detail, sigInLength, detailTempOdd, length1);
  dyaddown_1D_keep_even(detail, sigInLength, detailTempEven, length1);
  length2 = 2 * length1;
  approxOutOdd = malloc(length2 * sizeof(double));
  approxOutEven = malloc(length2 * sizeof(double));
  detailOutOdd = malloc(length2 * sizeof(double));
  detailOutEven = malloc(length2 * sizeof(double));
  for (count = 0; count < length1; count++) {
    approxOutOdd[2 * count] = approxTempOdd[count];
    detailOutOdd[2 * count] = detailTempOdd[count];
    approxOutOdd[2 * count + 1] = 0;
    detailOutOdd[2 * count + 1] = 0;
    approxOutEven[2 * count] = 0;
    detailOutEven[2 * count] = 0;
    approxOutEven[2 * count + 1] = approxTempEven[count];
    detailOutEven[2 * count + 1] = detailTempEven[count];
  }
  free(approxTempOdd);
  free(detailTempOdd);
  free(approxTempEven);
  free(detailTempEven);
  swt_exp2(level - 1, &twt);
  if (level == 1) {
    mu = 1;
    su = 0;
  } else {
    mu = twt;
    su = twt - 1;
  }
  filterLowTemp = malloc(mu * filterLength * sizeof(double));
  filterHiTemp = malloc(mu * filterLength * sizeof(double));
  for (count = 0; count < mu * filterLength; count++) {
    filterLowTemp[count] = 0;
    filterHiTemp[count] = 0;
  }
  for (count = 0; count < filterLength; count++) {
    filterLowTemp[mu * count] = filterLow[count];
    filterHiTemp[mu * count] = filterHi[count];
  }
  approxT = malloc(length2 * sizeof(double));
  detailT = malloc(length2 * sizeof(double));
  sigOdd = malloc(length2 * sizeof(double));
  sigEven = malloc(length2 * sizeof(double));
  i_conv(approxOutOdd, length2, approxT, length2, filterLowTemp, mu * filterLength);
  i_conv(detailOutOdd, length2, detailT, length2, filterHiTemp, mu * filterLength);
  for (count = 0; count < length2; count++)
    sigOdd[count] = approxT[count] + detailT[count];
  free(approxOutOdd);
  free(detailOutOdd);
  i_conv(approxOutEven, length2, approxT, length2, filterLowTemp, mu * filterLength);
  i_conv(detailOutEven, length2, detailT, length2, filterHiTemp, mu * filterLength);
  for (count = 0; count < length2; count++)
    sigEven[count] = approxT[count] + detailT[count];
  free(approxOutEven);
  free(detailOutEven);
  free(approxT);
  free(detailT);
  free(filterLowTemp);
  free(filterHiTemp);
  startpoint = sigInLength - filterLength * mu - su - 1;
  for (count = (startpoint); count < sigOutLength; count++)
    sigOut[count - startpoint] = (sigOdd[count] + sigEven[count]) / 2.0;
  for (count = 0; count < startpoint; count++)
    sigOut[count + 1 + filterLength * mu + su] = (sigOdd[count] + sigEven[count]) / 2.0;
  free(sigOdd);
  free(sigEven);
  return;
}
```