user: What is the c source code of the assembly code below?

```asm
<c5matrix>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x98,%rsp
  mov    %edi,%ebx
  mov    %esi,0x70(%rsp)
  mov    %edx,0x74(%rsp)
  mov    %ecx,0x50(%rsp)
  mov    %r8d,0x54(%rsp)
  mov    %r9d,0x28(%rsp)
  mov    0xd8(%rsp),%r14d
  mov    0xe0(%rsp),%r15d
  mov    %esi,%eax
  sub    %edi,%eax
  lea    0x1(%rax),%edi
  shl    $0x3,%rdi
  call   <malloc@plt>
  test   %rax,%rax
  je     L84
  movslq %ebx,%rcx
  mov    %rcx,0x38(%rsp)
  lea    0x0(,%rcx,8),%rdx
  sub    %rdx,%rax
  mov    %rax,0x48(%rsp)
  cmp    %ebx,0x70(%rsp)
  jl     L157
  mov    0x50(%rsp),%eax
  mov    0x74(%rsp),%esi
  sub    %esi,%eax
  lea    0x1(%rax),%eax
  shl    $0x3,%rax
  mov    %rax,0x78(%rsp)
  movslq %esi,%rax
  mov    %rax,0x80(%rsp)
  shl    $0x3,%rax
  neg    %rax
  mov    %rax,0x88(%rsp)
  mov    0x28(%rsp),%eax
  mov    0x54(%rsp),%ecx
  sub    %ecx,%eax
  lea    0x1(%rax),%eax
  shl    $0x3,%rax
  mov    %rax,0x58(%rsp)
  movslq %ecx,%rax
  mov    %rax,0x60(%rsp)
  shl    $0x3,%rax
  neg    %rax
  mov    %rax,0x68(%rsp)
  mov    %r14d,%eax
  sub    0xd0(%rsp),%eax
  lea    0x1(%rax),%eax
  shl    $0x3,%rax
  mov    %rax,0x10(%rsp)
  movslq 0xd0(%rsp),%rax
  mov    %rax,0x20(%rsp)
  shl    $0x3,%rax
  neg    %rax
  mov    %rax,0x18(%rsp)
  mov    0xe8(%rsp),%eax
  sub    %r15d,%eax
  mov    %eax,0x2c(%rsp)
L15:
  mov    0x78(%rsp),%rdi
  call   <malloc@plt>
  mov    0x48(%rsp),%rsi
  mov    0x38(%rsp),%rcx
  mov    %rax,(%rsi,%rcx,8)
  test   %rax,%rax
  je     L35
  add    0x88(%rsp),%rax
  mov    %rax,0x40(%rsp)
  mov    0x48(%rsp),%rsi
  mov    0x38(%rsp),%rcx
  mov    %rax,(%rsi,%rcx,8)
  mov    0x74(%rsp),%esi
  cmp    %esi,0x50(%rsp)
  jl     L103
  mov    0x80(%rsp),%rax
  mov    %rax,0x30(%rsp)
  jmp    L58
L84:
  mov    $0x14,%edi
  call   <exit@plt>
L35:
  mov    $0x14,%edi
  call   <exit@plt>
L151:
  mov    $0x14,%edi
  call   <exit@plt>
L137:
  mov    $0x14,%edi
  call   <exit@plt>
L60:
  mov    $0x14,%edi
  call   <exit@plt>
L77:
  add    $0x1,%r13
  cmp    %r13d,0x28(%rsp)
  jl     L121
L20:
  mov    0x10(%rsp),%rdi
  call   <malloc@plt>
  mov    0x8(%rsp),%rcx
  mov    %rax,(%rcx,%r13,8)
  test   %rax,%rax
  je     L137
  mov    0x18(%rsp),%rsi
  lea    (%rax,%rsi,1),%rbp
  mov    0x8(%rsp),%rax
  mov    %rbp,(%rax,%r13,8)
  cmp    0xd0(%rsp),%r14d
  jl     L77
  mov    0x20(%rsp),%rbx
  mov    0x2c(%rsp),%eax
  lea    0x1(%rax),%r12d
L133:
  mov    %r12,%rdi
  call   <malloc@plt>
  mov    %rax,0x0(%rbp,%rbx,8)
  test   %rax,%rax
  je     L60
  movslq %r15d,%rdx
  sub    %rdx,%rax
  mov    %rax,0x0(%rbp,%rbx,8)
  add    $0x1,%rbx
  cmp    %ebx,%r14d
  jge    L133
  jmp    L77
L121:
  addq   $0x1,0x30(%rsp)
  mov    0x30(%rsp),%rax
  cmp    %eax,0x50(%rsp)
  jl     L103
L58:
  mov    0x58(%rsp),%rdi
  call   <malloc@plt>
  mov    0x40(%rsp),%rcx
  mov    0x30(%rsp),%rsi
  mov    %rax,(%rcx,%rsi,8)
  test   %rax,%rax
  je     L151
  add    0x68(%rsp),%rax
  mov    %rax,0x8(%rsp)
  mov    0x40(%rsp),%rcx
  mov    0x30(%rsp),%rsi
  mov    %rax,(%rcx,%rsi,8)
  mov    0x54(%rsp),%ecx
  cmp    %ecx,0x28(%rsp)
  jl     L121
  mov    0x60(%rsp),%r13
  jmp    L20
L103:
  addq   $0x1,0x38(%rsp)
  mov    0x38(%rsp),%rax
  cmp    %eax,0x70(%rsp)
  jge    L15
L157:
  mov    0x48(%rsp),%rax
  add    $0x98,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
unsigned char *****c5matrix(ncoll, ncolh, nql, nqh, nzl, nzh, nrl, nrh, ncl, nch)
int ncoll, ncolh, nrl, nrh, ncl, nch, nzl, nzh, nql, nqh;
{
  unsigned char *****m;
  int i, j, k, l;
  m = (unsigned char *****)malloc((unsigned)(ncolh - ncoll + 1) * sizeof(unsigned char ****));
  if (!m)
    exit(20);
  m -= ncoll;
  for (k = ncoll; k <= ncolh; k++) {
    m[k] = (unsigned char ****)malloc((unsigned)(nqh - nql + 1) * sizeof(unsigned char ***));
    if (!m[k])
      exit(20);
    m[k] -= nql;
    for (i = nql; i <= nqh; i++) {
      m[k][i] = (unsigned char ***)malloc((unsigned)(nzh - nzl + 1) * sizeof(unsigned char **));
      if (!m[k][i])
        exit(20);
      m[k][i] -= nzl;
      for (j = nzl; j <= nzh; j++) {
        m[k][i][j] = (unsigned char **)malloc((unsigned)(nrh - nrl + 1) * sizeof(unsigned char *));
        if (!m[k][i][j])
          exit(20);
        m[k][i][j] -= nrl;
        for (l = nrl; l <= nrh; l++) {
          m[k][i][j][l] = (unsigned char *)malloc((unsigned)(nch - ncl + 1) * sizeof(unsigned char));
          if (!m[k][i][j][l])
            exit(20);
          m[k][i][j][l] -= ncl;
        }
      }
    }
  }
  return m;
}
```