user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<cg_step>:
  endbr64
  mov    %rcx,%rax
  mov    %rdx,%r8
  push   %r13
  movabs $0x6666666666666667,%rdx
  imul   %rdx
  mov    %rcx,%rax
  push   %r12
  sar    $0x3f,%rax
  push   %rbp
  push   %rbx
  mov    %rcx,%rbx
  sar    %rdx
  mov    %rdx,%rcx
  sub    %rax,%rcx
  lea    (%rcx,%rcx,4),%rax
  mov    %rbx,%rcx
  sub    %rax,%rcx
  ucomisd D3(%rip),%xmm0
  jp     L189
  jne    L189
  test   %rcx,%rcx
  jle    L154
  lea    0x8(%rsi),%rax
  cmp    %rax,%rdi
  lea    0x8(%r8),%rax
  setne  %dl
  cmp    %rax,%rdi
  setne  %al
  test   %al,%dl
  je     L50
  lea    -0x1(%rcx),%rax
  cmp    $0x1,%rax
  jbe    L50
  movupd (%rsi),%xmm0
  movupd (%r8),%xmm6
  mov    %rcx,%rax
  shr    %rax
  subpd  %xmm6,%xmm0
  movups %xmm0,(%rdi)
  cmp    $0x2,%rax
  je     L117
  movsd  0x10(%rsi),%xmm0
  subsd  0x10(%r8),%xmm0
  movsd  %xmm0,0x10(%rdi)
L17:
  cmp    %rcx,%rbx
  jle    L309
  lea    0x50(,%rcx,8),%rdx
  lea    0x0(,%rcx,8),%r10
  lea    (%rdi,%r10,1),%r11
  lea    (%r8,%rdx,1),%rbp
  lea    -0x1(%rbx),%rax
  lea    (%rdi,%rdx,1),%r12
  lea    (%rsi,%r10,1),%r9
  sub    %rcx,%rax
  add    %r8,%r10
  cmp    %rbp,%r11
  setae  %bpl
  cmp    %r12,%r10
  setae  %r13b
  add    %rsi,%rdx
  or     %r13d,%ebp
  cmp    %rdx,%r11
  setae  %dl
  cmp    %r12,%r9
  setae  %r12b
  or     %r12d,%edx
  test   %dl,%bpl
  je     L85
  cmp    $0x4,%rax
  jbe    L85
  movabs $0xcccccccccccccccd,%rdx
  mul    %rdx
  mov    %rdx,%rax
  mov    %r11,%rdx
  shr    $0x2,%rax
  lea    0x1(%rax),%rbx
  mov    %r9,%rax
  mov    %r10,%r9
  mov    %rbx,%r10
  shr    %r10
  lea    (%r10,%r10,4),%r10
  shl    $0x4,%r10
  add    %rax,%r10
  nopl   (%rax)
L112:
  movupd 0x10(%r9),%xmm7
  movupd 0x10(%rax),%xmm3
  add    $0x50,%rax
  add    $0x50,%r9
  movupd -0x30(%rax),%xmm2
  movupd -0x20(%rax),%xmm1
  add    $0x50,%rdx
  subpd  %xmm7,%xmm3
  movupd -0x30(%r9),%xmm7
  movupd -0x10(%rax),%xmm0
  movupd -0x10(%r9),%xmm6
  movupd -0x50(%rax),%xmm4
  subpd  %xmm7,%xmm2
  movupd -0x20(%r9),%xmm7
  subpd  %xmm6,%xmm0
  subpd  %xmm7,%xmm1
  movupd -0x50(%r9),%xmm7
  movups %xmm3,-0x40(%rdx)
  movups %xmm2,-0x30(%rdx)
  subpd  %xmm7,%xmm4
  movups %xmm0,-0x10(%rdx)
  movups %xmm1,-0x20(%rdx)
  movups %xmm4,-0x50(%rdx)
  cmp    %r10,%rax
  jne    L112
  mov    %rbx,%rax
  and    $0xfffffffffffffffe,%rax
  lea    (%rax,%rax,4),%rdx
  add    %rcx,%rdx
  cmp    %rax,%rbx
  je     L309
  movsd  (%rsi,%rdx,8),%xmm0
  subsd  (%r8,%rdx,8),%xmm0
  lea    0x0(,%rdx,8),%rax
  movsd  %xmm0,(%rdi,%rdx,8)
  movsd  0x8(%rsi,%rax,1),%xmm0
  subsd  0x8(%r8,%rax,1),%xmm0
  movsd  %xmm0,0x8(%rdi,%rax,1)
  movsd  0x10(%rsi,%rax,1),%xmm0
  subsd  0x10(%r8,%rax,1),%xmm0
  movsd  %xmm0,0x10(%rdi,%rax,1)
  movsd  0x18(%rsi,%rax,1),%xmm0
  subsd  0x18(%r8,%rax,1),%xmm0
  movsd  %xmm0,0x18(%rdi,%rax,1)
  movsd  0x20(%rsi,%rax,1),%xmm0
  subsd  0x20(%r8,%rax,1),%xmm0
  movsd  %xmm0,0x20(%rdi,%rax,1)
L309:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  xchg   %ax,%ax
L189:
  test   %rcx,%rcx
  jle    L290
  lea    0x8(%rsi),%rax
  cmp    %rax,%rdi
  lea    0x8(%r8),%rax
  setne  %dl
  cmp    %rax,%rdi
  setne  %al
  test   %al,%dl
  je     L140
  lea    -0x1(%rcx),%rax
  cmp    $0x1,%rax
  jbe    L140
  movupd (%r8),%xmm1
  movapd %xmm0,%xmm2
  movupd (%rsi),%xmm6
  mov    %rcx,%rax
  unpcklpd %xmm2,%xmm2
  shr    %rax
  mulpd  %xmm2,%xmm1
  addpd  %xmm6,%xmm1
  movups %xmm1,(%rdi)
  cmp    $0x2,%rax
  je     L220
  movsd  0x10(%r8),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  0x10(%rsi),%xmm1
  movsd  %xmm1,0x10(%rdi)
L108:
  cmp    %rcx,%rbx
  jle    L309
  lea    0x50(,%rcx,8),%rdx
  lea    0x0(,%rcx,8),%r10
  lea    (%rdi,%r10,1),%r11
  lea    (%rsi,%rdx,1),%rbp
  lea    -0x1(%rbx),%rax
  lea    (%rdi,%rdx,1),%r12
  lea    (%rsi,%r10,1),%r9
  sub    %rcx,%rax
  add    %r8,%r10
  cmp    %rbp,%r11
  setae  %bpl
  cmp    %r9,%r12
  setbe  %r13b
  add    %r8,%rdx
  or     %r13d,%ebp
  cmp    %rdx,%r11
  setae  %dl
  cmp    %r10,%r12
  setbe  %r12b
  or     %r12d,%edx
  test   %dl,%bpl
  je     L63
  cmp    $0x4,%rax
  jbe    L63
  movabs $0xcccccccccccccccd,%rdx
  movapd %xmm0,%xmm6
  mul    %rdx
  unpcklpd %xmm6,%xmm6
  mov    %rdx,%rax
  mov    %r11,%rdx
  shr    $0x2,%rax
  lea    0x1(%rax),%rbx
  mov    %r9,%rax
  mov    %r10,%r9
  mov    %rbx,%r10
  shr    %r10
  lea    (%r10,%r10,4),%r10
  shl    $0x4,%r10
  add    %rax,%r10
  nopw   0x0(%rax,%rax,1)
L227:
  movupd 0x10(%r9),%xmm4
  movupd 0x30(%r9),%xmm2
  add    $0x50,%rax
  add    $0x50,%r9
  movupd -0x40(%rax),%xmm5
  movupd -0x30(%r9),%xmm3
  add    $0x50,%rdx
  mulpd  %xmm6,%xmm4
  movupd -0x10(%r9),%xmm1
  movupd -0x30(%rax),%xmm7
  mulpd  %xmm6,%xmm2
  mulpd  %xmm6,%xmm3
  mulpd  %xmm6,%xmm1
  addpd  %xmm5,%xmm4
  movupd -0x20(%rax),%xmm5
  addpd  %xmm5,%xmm2
  movupd -0x50(%r9),%xmm5
  addpd  %xmm7,%xmm3
  movupd -0x10(%rax),%xmm7
  mulpd  %xmm6,%xmm5
  addpd  %xmm7,%xmm1
  movupd -0x50(%rax),%xmm7
  movups %xmm4,-0x40(%rdx)
  movups %xmm3,-0x30(%rdx)
  movups %xmm2,-0x20(%rdx)
  movups %xmm1,-0x10(%rdx)
  addpd  %xmm7,%xmm5
  movups %xmm5,-0x50(%rdx)
  cmp    %rax,%r10
  jne    L227
  mov    %rbx,%rax
  and    $0xfffffffffffffffe,%rax
  lea    (%rax,%rax,4),%rdx
  add    %rcx,%rdx
  cmp    %rax,%rbx
  je     L309
  movsd  (%r8,%rdx,8),%xmm1
  lea    0x0(,%rdx,8),%rax
  mulsd  %xmm0,%xmm1
  addsd  (%rsi,%rdx,8),%xmm1
  movsd  %xmm1,(%rdi,%rdx,8)
  movsd  0x8(%r8,%rdx,8),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  0x8(%rsi,%rdx,8),%xmm1
  movsd  %xmm1,0x8(%rdi,%rax,1)
  movsd  0x10(%r8,%rax,1),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  0x10(%rsi,%rax,1),%xmm1
  movsd  %xmm1,0x10(%rdi,%rax,1)
  movsd  0x18(%r8,%rax,1),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  0x18(%rsi,%rax,1),%xmm1
  movsd  %xmm1,0x18(%rdi,%rax,1)
  mulsd  0x20(%r8,%rax,1),%xmm0
  addsd  0x20(%rsi,%rax,1),%xmm0
  movsd  %xmm0,0x20(%rdi,%rax,1)
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopw   0x0(%rax,%rax,1)
L85:
  movsd  (%rsi,%rcx,8),%xmm0
  subsd  (%r8,%rcx,8),%xmm0
  movsd  %xmm0,(%rdi,%rcx,8)
  movsd  0x8(%rsi,%rcx,8),%xmm0
  subsd  0x8(%r8,%rcx,8),%xmm0
  movsd  %xmm0,0x8(%rdi,%rcx,8)
  movsd  0x10(%rsi,%rcx,8),%xmm0
  subsd  0x10(%r8,%rcx,8),%xmm0
  movsd  %xmm0,0x10(%rdi,%rcx,8)
  movsd  0x18(%rsi,%rcx,8),%xmm0
  subsd  0x18(%r8,%rcx,8),%xmm0
  movsd  %xmm0,0x18(%rdi,%rcx,8)
  movsd  0x20(%rsi,%rcx,8),%xmm0
  subsd  0x20(%r8,%rcx,8),%xmm0
  movsd  %xmm0,0x20(%rdi,%rcx,8)
  add    $0x5,%rcx
  cmp    %rcx,%rbx
  jg     L85
  jmp    L309
  nopw   0x0(%rax,%rax,1)
L63:
  movsd  (%r8,%rcx,8),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  (%rsi,%rcx,8),%xmm1
  movsd  %xmm1,(%rdi,%rcx,8)
  movsd  0x8(%r8,%rcx,8),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  0x8(%rsi,%rcx,8),%xmm1
  movsd  %xmm1,0x8(%rdi,%rcx,8)
  movsd  0x10(%r8,%rcx,8),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  0x10(%rsi,%rcx,8),%xmm1
  movsd  %xmm1,0x10(%rdi,%rcx,8)
  movsd  0x18(%r8,%rcx,8),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  0x18(%rsi,%rcx,8),%xmm1
  movsd  %xmm1,0x18(%rdi,%rcx,8)
  movsd  0x20(%r8,%rcx,8),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  0x20(%rsi,%rcx,8),%xmm1
  movsd  %xmm1,0x20(%rdi,%rcx,8)
  add    $0x5,%rcx
  cmp    %rcx,%rbx
  jg     L63
  jmp    L309
  xchg   %ax,%ax
L117:
  movupd 0x10(%rsi),%xmm0
  movupd 0x10(%r8),%xmm6
  subpd  %xmm6,%xmm0
  movups %xmm0,0x10(%rdi)
  jmp    L17
  nopl   0x0(%rax,%rax,1)
L220:
  movupd 0x10(%r8),%xmm1
  movupd 0x10(%rsi),%xmm6
  mulpd  %xmm2,%xmm1
  addpd  %xmm6,%xmm1
  movups %xmm1,0x10(%rdi)
  jmp    L108
  nopl   0x0(%rax)
L290:
  xor    %ecx,%ecx
  jmp    L108
  nopw   0x0(%rax,%rax,1)
L154:
  xor    %ecx,%ecx
  jmp    L17
  nopw   0x0(%rax,%rax,1)
L50:
  movsd  (%rsi),%xmm0
  subsd  (%r8),%xmm0
  movsd  %xmm0,(%rdi)
  cmp    $0x1,%rcx
  je     L17
  movsd  0x8(%rsi),%xmm0
  subsd  0x8(%r8),%xmm0
  movsd  %xmm0,0x8(%rdi)
  cmp    $0x2,%rcx
  je     L17
  movsd  0x10(%rsi),%xmm0
  subsd  0x10(%r8),%xmm0
  movsd  %xmm0,0x10(%rdi)
  cmp    $0x4,%rcx
  jne    L17
  movsd  0x18(%rsi),%xmm0
  subsd  0x18(%r8),%xmm0
  movsd  %xmm0,0x18(%rdi)
  jmp    L17
L140:
  movsd  (%r8),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  (%rsi),%xmm1
  movsd  %xmm1,(%rdi)
  cmp    $0x1,%rcx
  je     L108
  movsd  0x8(%r8),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  0x8(%rsi),%xmm1
  movsd  %xmm1,0x8(%rdi)
  cmp    $0x2,%rcx
  je     L108
  movsd  0x10(%r8),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  0x10(%rsi),%xmm1
  movsd  %xmm1,0x10(%rdi)
  cmp    $0x4,%rcx
  jne    L108
  movsd  0x18(%r8),%xmm1
  mulsd  %xmm0,%xmm1
  addsd  0x18(%rsi),%xmm1
  movsd  %xmm1,0x18(%rdi)
  jmp    L108
```

tool_calls: name: disassemble_data
arguments: tag: D3
type_infered: byte[8]

tool: {"D3": [0x00,0x00,0x00,0x00,0x00,0x00,0xf0,0xbf]}

assistant: ```c
void cg_step(double *xtemp, double *x, double *d, double alpha, long int n) {
  long int n5, i;
  n5 = n % 5;
  if (alpha == -((double)1)) {
    for (i = 0; i < n5; i++)
      xtemp[i] = x[i] - d[i];
    for (; i < n; i += 5) {
      xtemp[i] = x[i] - d[i];
      xtemp[i + 1] = x[i + 1] - d[i + 1];
      xtemp[i + 2] = x[i + 2] - d[i + 2];
      xtemp[i + 3] = x[i + 3] - d[i + 3];
      xtemp[i + 4] = x[i + 4] - d[i + 4];
    }
  } else {
    for (i = 0; i < n5; i++)
      xtemp[i] = x[i] + alpha * d[i];
    for (; i < n; i += 5) {
      xtemp[i] = x[i] + alpha * d[i];
      xtemp[i + 1] = x[i + 1] + alpha * d[i + 1];
      xtemp[i + 2] = x[i + 2] + alpha * d[i + 2];
      xtemp[i + 3] = x[i + 3] + alpha * d[i + 3];
      xtemp[i + 4] = x[i + 4] + alpha * d[i + 4];
    }
  }
  return;
}
```