user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<copy>:
  endbr64
  push   %rbx
  mov    0x18(%rsp),%r11d
  mov    0x10(%rsp),%eax
  cmp    $0x8,%r11d
  ja     L69
  lea    D9(%rip),%rbx
  mov    %rdi,%r10
  mov    %rsi,%rdi
  movslq %edx,%rsi
  movslq %ecx,%rdx
  mov    %r11d,%ecx
  movslq (%rbx,%rcx,4),%rcx
  add    %rbx,%rcx
  notrack jmp *%rcx
  nopl   0x0(%rax)
L69:
  mov    %r11d,%ecx
  lea    D2(%rip),%rdx
  mov    $0x1,%esi
  pop    %rbx
  mov    $0x25,%edi
  jmp    1050 <mp_msg@plt>
  nopw   0x0(%rax,%rax,1)
  lea    (%r10,%rdx,4),%rcx
  cltd
  movslq %r9d,%r9
  idiv   %esi
  lea    (%rdi,%r9,4),%rdi
  lea    -0x1(%rax),%edx
  test   %eax,%eax
  je     L31
  movslq %r8d,%r8
  shl    $0x2,%rsi
  shl    $0x2,%r8
  nopl   0x0(%rax,%rax,1)
L103:
  mov    (%rcx),%eax
  add    %rsi,%rcx
  mov    %eax,(%rdi)
  add    %r8,%rdi
  sub    $0x1,%edx
  jae    L103
L31:
  pop    %rbx
  ret
  nopl   0x0(%rax)
  movslq %r9d,%r9
  lea    (%r10,%rdx,4),%rcx
  cltd
  lea    (%rdi,%r9,4),%rdi
  lea    (%rsi,%rsi,1),%r9d
  idiv   %r9d
  lea    -0x1(%rax),%edx
  test   %eax,%eax
  je     L31
  movslq %r8d,%r8
  shl    $0x2,%rsi
  shl    $0x2,%r8
  nopl   (%rax)
L105:
  mov    (%rcx),%eax
  add    %rsi,%rcx
  mov    %eax,(%rdi)
  add    %r8,%rdi
  sub    $0x1,%edx
  jae    L105
  pop    %rbx
  ret
  nopl   0x0(%rax)
  lea    (%rdx,%rdx,2),%edx
  lea    (%rsi,%rsi,2),%esi
  movslq %edx,%rdx
  lea    (%r10,%rdx,4),%rcx
  lea    (%r9,%r9,2),%edx
  movslq %edx,%rdx
  lea    (%rdi,%rdx,4),%rdi
  cltd
  idiv   %esi
  lea    -0x1(%rax),%edx
  test   %eax,%eax
  je     L31
  lea    (%r8,%r8,2),%r8d
  movslq %esi,%rsi
  movslq %r8d,%r8
  shl    $0x2,%rsi
  shl    $0x2,%r8
  nopl   0x0(%rax)
L46:
  mov    (%rcx),%eax
  mov    %eax,(%rdi)
  mov    0x4(%rcx),%eax
  mov    %eax,0x4(%rdi)
  mov    0x8(%rcx),%eax
  add    %rsi,%rcx
  mov    %eax,0x8(%rdi)
  add    %r8,%rdi
  sub    $0x1,%edx
  jae    L46
  pop    %rbx
  ret
  nopl   (%rax)
  movslq %r9d,%r9
  lea    (%r10,%rdx,4),%rcx
  cltd
  lea    (%rdi,%r9,4),%rdi
  lea    0x0(,%rsi,4),%r9d
  idiv   %r9d
  lea    -0x1(%rax),%edx
  test   %eax,%eax
  je     L31
  movslq %r8d,%r8
  shl    $0x2,%rsi
  shl    $0x2,%r8
  nopl   (%rax)
L2:
  mov    (%rcx),%eax
  add    %rsi,%rcx
  mov    %eax,(%rdi)
  add    %r8,%rdi
  sub    $0x1,%edx
  jae    L2
  pop    %rbx
  ret
  nopl   0x0(%rax)
  movslq %r9d,%r9
  lea    (%r10,%rdx,4),%rcx
  cltd
  lea    (%rdi,%r9,4),%rdi
  lea    0x0(,%rsi,8),%r9d
  idiv   %r9d
  lea    -0x1(%rax),%edx
  test   %eax,%eax
  je     L31
  movslq %r8d,%r8
  shl    $0x2,%rsi
  shl    $0x2,%r8
  nopl   (%rax)
L3:
  mov    (%rcx),%eax
  add    %rsi,%rcx
  mov    %eax,(%rdi)
  add    %r8,%rdi
  sub    $0x1,%edx
  jae    L3
  pop    %rbx
  ret
```

tool_calls: name: disassemble_data
arguments: data_tag: D2
datatype: string

tool: D2: [channels] Unsupported number of bytes/sample: %i please report this error on the MPlayer mailing list. 


assistant: ```c
void copy(void *in, void *out, int ins, int inos, int outs, int outos, int len, int bps) {
  switch (bps) {
  case 1: {
    int8_t *tin = (int8_t *)in;
    int8_t *tout = (int8_t *)out;
    tin += inos;
    tout += outos;
    len = len / ins;
    while (len--) {
      *tout = *tin;
      tin += ins;
      tout += outs;
    }
    break;
  }
  case 2: {
    int16_t *tin = (int16_t *)in;
    int16_t *tout = (int16_t *)out;
    tin += inos;
    tout += outos;
    len = len / (2 * ins);
    while (len--) {
      *tout = *tin;
      tin += ins;
      tout += outs;
    }
    break;
  }
  case 3: {
    int8_t *tin = (int8_t *)in;
    int8_t *tout = (int8_t *)out;
    tin += 3 * inos;
    tout += 3 * outos;
    len = len / (3 * ins);
    while (len--) {
      tout[0] = tin[0];
      tout[1] = tin[1];
      tout[2] = tin[2];
      tin += 3 * ins;
      tout += 3 * outs;
    }
    break;
  }
  case 4: {
    int32_t *tin = (int32_t *)in;
    int32_t *tout = (int32_t *)out;
    tin += inos;
    tout += outos;
    len = len / (4 * ins);
    while (len--) {
      *tout = *tin;
      tin += ins;
      tout += outs;
    }
    break;
  }
  case 8: {
    int64_t *tin = (int64_t *)in;
    int64_t *tout = (int64_t *)out;
    tin += inos;
    tout += outos;
    len = len / (8 * ins);
    while (len--) {
      *tout = *tin;
      tin += ins;
      tout += outs;
    }
    break;
  }
  default:
    mp_msg(37, 1,
           "[channels] Unsupported number of bytes/sample: %i"
           " please report this error on the MPlayer mailing list. \n",
           bps);
  }
}
```