user: What would the C source look like for the assembly code provided here:

```asm
<cdrout>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x210,%rsp
  mov    (%rdi),%r12d
  mov    %fs:0x28,%rax
  mov    %rax,0x208(%rsp)
  xor    %eax,%eax
  test   %r12d,%r12d
  jle    L205
  mov    %rsi,%rbp
  xor    %r13d,%r13d
  lea    D19(%rip),%rbx
  mov    %rsp,%r14
  movdqa D20(%rip),%xmm4
  nopw   0x0(%rax,%rax,1)
L173:
  mov    $0x200,%r8d
  cmp    %r8d,%r12d
  cmovle %r12d,%r8d
  lea    -0x1(%r8),%eax
  sub    %r8d,%r12d
  cmp    $0xe,%eax
  jbe    L75
  mov    %r8d,%edx
  movslq %r13d,%rax
  mov    %r14,%rcx
  shr    $0x4,%edx
  lea    0x0(%rbp,%rax,4),%rax
  lea    -0x1(%rdx),%esi
  lea    0x40(%rax),%rdx
  shl    $0x6,%rsi
  add    %rdx,%rsi
  jmp    L68
  xchg   %ax,%ax
L178:
  add    $0x40,%rdx
L68:
  movdqu (%rax),%xmm0
  movdqu 0x10(%rax),%xmm5
  add    $0x10,%rcx
  movdqu 0x30(%rax),%xmm3
  movdqa %xmm0,%xmm1
  punpcklwd %xmm5,%xmm0
  punpckhwd %xmm5,%xmm1
  movdqa %xmm0,%xmm2
  punpckhwd %xmm1,%xmm2
  punpcklwd %xmm1,%xmm0
  movdqu 0x20(%rax),%xmm1
  mov    %rdx,%rax
  punpcklwd %xmm2,%xmm0
  movdqa %xmm1,%xmm2
  punpcklwd %xmm3,%xmm1
  pand   %xmm4,%xmm0
  punpckhwd %xmm3,%xmm2
  movdqa %xmm1,%xmm3
  punpckhwd %xmm2,%xmm3
  punpcklwd %xmm2,%xmm1
  punpcklwd %xmm3,%xmm1
  pand   %xmm4,%xmm1
  packuswb %xmm1,%xmm0
  movaps %xmm0,-0x10(%rcx)
  cmp    %rsi,%rdx
  jne    L178
  mov    %r8d,%eax
  and    $0xfffffff0,%eax
  lea    0x0(%r13,%rax,1),%ecx
  cmp    %eax,%r8d
  je     L195
L110:
  movslq %ecx,%rcx
  movslq %eax,%rsi
  mov    0x0(%rbp,%rcx,4),%edi
  lea    0x0(,%rcx,4),%rdx
  lea    0x1(%rax),%ecx
  mov    %dil,(%rsp,%rsi,1)
  cmp    %ecx,%r8d
  jle    L195
  mov    0x4(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  mov    %sil,(%rsp,%rcx,1)
  lea    0x2(%rax),%ecx
  cmp    %ecx,%r8d
  jle    L195
  mov    0x8(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  mov    %sil,(%rsp,%rcx,1)
  lea    0x3(%rax),%ecx
  cmp    %ecx,%r8d
  jle    L195
  mov    0xc(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  mov    %sil,(%rsp,%rcx,1)
  lea    0x4(%rax),%ecx
  cmp    %ecx,%r8d
  jle    L195
  mov    0x10(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  mov    %sil,(%rsp,%rcx,1)
  lea    0x5(%rax),%ecx
  cmp    %ecx,%r8d
  jle    L195
  mov    0x14(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  mov    %sil,(%rsp,%rcx,1)
  lea    0x6(%rax),%ecx
  cmp    %ecx,%r8d
  jle    L195
  mov    0x18(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  mov    %sil,(%rsp,%rcx,1)
  lea    0x7(%rax),%ecx
  cmp    %ecx,%r8d
  jle    L195
  mov    0x1c(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  mov    %sil,(%rsp,%rcx,1)
  lea    0x8(%rax),%ecx
  cmp    %ecx,%r8d
  jle    L195
  mov    0x20(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  mov    %sil,(%rsp,%rcx,1)
  lea    0x9(%rax),%ecx
  cmp    %ecx,%r8d
  jle    L195
  mov    0x24(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  mov    %sil,(%rsp,%rcx,1)
  lea    0xa(%rax),%ecx
  cmp    %ecx,%r8d
  jle    L195
  mov    0x28(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  mov    %sil,(%rsp,%rcx,1)
  lea    0xb(%rax),%ecx
  cmp    %ecx,%r8d
  jle    L195
  mov    0x2c(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  mov    %sil,(%rsp,%rcx,1)
  lea    0xc(%rax),%ecx
  cmp    %ecx,%r8d
  jle    L195
  mov    0x30(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  mov    %sil,(%rsp,%rcx,1)
  lea    0xd(%rax),%ecx
  cmp    %ecx,%r8d
  jle    L195
  mov    0x34(%rbp,%rdx,1),%esi
  movslq %ecx,%rcx
  add    $0xe,%eax
  mov    %sil,(%rsp,%rcx,1)
  cmp    %eax,%r8d
  jle    L195
  mov    0x38(%rbp,%rdx,1),%edx
  cltq
  mov    %dl,(%rsp,%rax,1)
  nopl   (%rax)
L195:
  xor    %eax,%eax
  mov    %r8d,%edx
  mov    %r14,%rsi
  mov    $0x1,%edi
  add    %r8d,%r13d
  call   <write@plt>
  movdqa D20(%rip),%xmm4
  cmp    $0xffffffff,%eax
  je     L61
L193:
  test   %r12d,%r12d
  jg     L173
L205:
  mov    0x208(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L18
  add    $0x210,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  xchg   %ax,%ax
L61:
  mov    %rbx,%rdi
  xor    %eax,%eax
  call   <perror@plt>
  movdqa D20(%rip),%xmm4
  jmp    L193
  nopl   0x0(%rax)
L75:
  mov    %r13d,%ecx
  xor    %eax,%eax
  jmp    L110
L18:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: tag: D19
type_guessed: string
name: disassemble_data
arguments: tag: D20
type_guessed: byte[16]

tool: D19: CDROUT error

tool: {"D20": [0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00]}

assistant: ```c
void cdrout(icount, buffer) int *icount;
int *buffer;
{
  int i, istat;
  int j = 0;
  int c_count, count;
  char c_buffer[512];
  count = *icount;
  while (count > 0) {
    c_count = (count > 512) ? 512 : count;
    count = count - c_count;
    for (i = 0; i < c_count; i++) {
      c_buffer[i] = (char)buffer[j++];
    }
    if ((istat = write(1, c_buffer, c_count)) == -1) {
      perror("CDROUT error");
    }
  }
}
```