user: Demonstrate the C code that generates the assembly output below:

```asm
<PB_Cnnxtroc>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x14(%rbp)
  mov    %esi,-0x18(%rbp)
  mov    %edx,-0x1c(%rbp)
  mov    %ecx,-0x20(%rbp)
  mov    %r8d,-0x24(%rbp)
  mov    %r9d,-0x28(%rbp)
  cmpl   $0xffffffff,-0x28(%rbp)
  je     L36
  cmpl   $0x1,0x10(%rbp)
  jne    L25
L36:
  mov    $0x0,%eax
  jmp    L27
L25:
  mov    -0x18(%rbp),%eax
  sub    %eax,-0x1c(%rbp)
  cmpl   $0x0,-0x1c(%rbp)
  jg     L83
  mov    -0x1c(%rbp),%eax
  neg    %eax
  cltd
  idivl  -0x20(%rbp)
  add    $0x1,%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x8(%rbp),%eax
  add    %eax,-0x28(%rbp)
  mov    -0x28(%rbp),%eax
  cltd
  idivl  0x10(%rbp)
  mov    %edx,-0x28(%rbp)
  mov    -0x8(%rbp),%eax
  imul   -0x20(%rbp),%eax
  add    %eax,-0x1c(%rbp)
L83:
  mov    -0x14(%rbp),%eax
  cmp    -0x1c(%rbp),%eax
  jg     L206
  mov    $0x0,%eax
  jmp    L27
L206:
  mov    -0x14(%rbp),%eax
  sub    -0x1c(%rbp),%eax
  cltd
  idivl  -0x20(%rbp)
  add    $0x1,%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x24(%rbp),%eax
  cmp    -0x28(%rbp),%eax
  jne    L124
  mov    -0x8(%rbp),%eax
  cmp    0x10(%rbp),%eax
  jge    L73
  mov    -0x14(%rbp),%eax
  sub    -0x1c(%rbp),%eax
  jmp    L27
L73:
  mov    -0x8(%rbp),%eax
  cltd
  idivl  0x10(%rbp)
  mov    %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  imul   0x10(%rbp),%eax
  cmp    %eax,-0x8(%rbp)
  je     L114
  mov    -0x14(%rbp),%eax
  sub    -0x1c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x4(%rbp),%eax
  imul   -0x20(%rbp),%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  jmp    L27
L114:
  mov    -0x8(%rbp),%eax
  sub    -0x4(%rbp),%eax
  imul   -0x20(%rbp),%eax
  jmp    L27
L124:
  mov    -0x24(%rbp),%eax
  sub    -0x28(%rbp),%eax
  mov    %eax,-0xc(%rbp)
  cmpl   $0x0,-0xc(%rbp)
  jns    L87
  mov    0x10(%rbp),%eax
  add    %eax,-0xc(%rbp)
L87:
  mov    0x10(%rbp),%eax
  sub    $0x1,%eax
  cmp    %eax,-0xc(%rbp)
  jne    L48
  mov    $0x0,%eax
  jmp    L27
L48:
  mov    -0x8(%rbp),%eax
  cmp    0x10(%rbp),%eax
  jge    L70
  mov    -0xc(%rbp),%eax
  cmp    -0x8(%rbp),%eax
  jge    L139
  mov    -0xc(%rbp),%eax
  imul   -0x20(%rbp),%eax
  mov    %eax,%edx
  mov    -0x14(%rbp),%eax
  sub    %edx,%eax
  sub    -0x1c(%rbp),%eax
  jmp    L27
L139:
  mov    $0x0,%eax
  jmp    L27
L70:
  mov    -0x8(%rbp),%eax
  cltd
  idivl  0x10(%rbp)
  mov    %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  imul   0x10(%rbp),%eax
  mov    %eax,%edx
  mov    -0x8(%rbp),%eax
  sub    %edx,%eax
  cmp    %eax,-0xc(%rbp)
  jl     L49
  mov    0x10(%rbp),%eax
  sub    $0x1,%eax
  sub    -0xc(%rbp),%eax
  imul   -0x4(%rbp),%eax
  imul   -0x20(%rbp),%eax
  jmp    L27
L49:
  mov    -0x14(%rbp),%eax
  sub    -0x1c(%rbp),%eax
  mov    %eax,%edx
  mov    -0x4(%rbp),%eax
  imul   -0xc(%rbp),%eax
  mov    %eax,%ecx
  mov    -0x4(%rbp),%eax
  add    %eax,%ecx
  mov    -0xc(%rbp),%eax
  add    %ecx,%eax
  imul   -0x20(%rbp),%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
L27:
  pop    %rbp
  ret
```

assistant: ```c
int PB_Cnnxtroc(int N, int I, int INB, int NB, int PROC, int SRCPROC, int NPROCS) {
  int ilocblk, mydist, nblocks;
  if ((SRCPROC == -1) || (NPROCS == 1))
    return (0);
  if ((INB -= I) <= 0) {
    nblocks = (-INB) / NB + 1;
    SRCPROC += nblocks;
    SRCPROC -= (SRCPROC / NPROCS) * NPROCS;
    INB += nblocks * NB;
  }
  if (N <= INB)
    return (0);
  nblocks = (N - INB) / NB + 1;
  if (PROC == SRCPROC) {
    if (nblocks < NPROCS)
      return (N - INB);
    ilocblk = nblocks / NPROCS;
    return (((nblocks - ilocblk * NPROCS) ? N - INB - ilocblk * NB : (nblocks - ilocblk) * NB));
  } else {
    if ((mydist = PROC - SRCPROC) < 0)
      mydist += NPROCS;
    if (mydist == NPROCS - 1)
      return (0);
    if (nblocks < NPROCS)
      return (((mydist < nblocks) ? N - mydist * NB - INB : 0));
    ilocblk = nblocks / NPROCS;
    return (((mydist >= (nblocks - ilocblk * NPROCS)) ? (NPROCS - 1 - mydist) * ilocblk * NB : N - INB - (ilocblk * mydist + ilocblk + mydist) * NB));
  }
}
```