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

```asm
<grtc_test>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r14
  push   %r13
  mov    %esi,%r13d
  push   %r12
  movslq %edi,%r12
  mov    $0x1031000,%edi
  push   %rbx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x28(%rbp)
  xor    %eax,%eax
  call   <report_device@plt>
  xor    %edi,%edi
  xor    %eax,%eax
  call   <report_subtest@plt>
  test   %r13d,%r13d
  lea    0x3(%r13),%eax
  mov    %rsp,%rcx
  cmovns %r13d,%eax
  movq   $0x55000001,(%r12)
  movq   $0x55000000,0x8(%r12)
  movq   $0x0,0x10(%r12)
  sar    $0x2,%eax
  cltq
  lea    0xf(,%rax,8),%rax
  mov    %rax,%rdx
  and    $0xfffffffffffff000,%rax
  sub    %rax,%rcx
  and    $0xfffffffffffffff0,%rdx
  cmp    %rcx,%rsp
  je     L334
L157:
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  cmp    %rcx,%rsp
  jne    L157
L334:
  and    $0xfff,%edx
  sub    %rdx,%rsp
  test   %rdx,%rdx
  jne    L396
L584:
  mov    %rsp,%r14
  lea    0x3ff(%r13),%eax
  mov    $0x1,%edi
  and    $0xfffffc00,%r14d
  test   %r13d,%r13d
  cmovns %r13d,%eax
  lea    0x400(%r14),%rbx
  mov    %rbx,%rdx
  sar    $0xa,%eax
  sar    $0xa,%rdx
  sub    $0x1,%eax
  shl    $0xa,%edx
  and    $0x3ff,%eax
  or     %edx,%eax
  cltq
  mov    %rax,0x50(%r12)
  xor    %eax,%eax
  movq   $0x55000001,0x40(%r12)
  call   <report_subtest@plt>
  mov    $0x2,%edi
  xor    %eax,%eax
  call   <report_subtest@plt>
  nopw   0x0(%rax,%rax,1)
L203:
  mov    0xd8(%r12),%rax
  test   $0x40,%al
  je     L203
  mov    0x400(%r14),%eax
  cmp    $0x10010500,%eax
  je     L605
  mov    $0x1,%edi
  xor    %eax,%eax
  call   <fail@plt>
L605:
  mov    0x4(%rbx),%eax
  cmp    $0xc0000000,%eax
  je     L71
  mov    $0x1,%edi
  xor    %eax,%eax
  call   <fail@plt>
L71:
  mov    0x8(%rbx),%eax
  cmp    $0x700,%eax
  je     L19
  mov    $0x1,%edi
  xor    %eax,%eax
  call   <fail@plt>
L19:
  mov    0xc(%rbx),%eax
  cmp    $0x100,%eax
  je     L422
  mov    $0x1,%edi
  xor    %eax,%eax
  call   <fail@plt>
L422:
  mov    0x10(%rbx),%eax
  cmp    $0x2000300,%eax
  je     L281
  mov    $0x1,%edi
  xor    %eax,%eax
  call   <fail@plt>
L281:
  mov    0x14(%rbx),%eax
  cmp    $0x4000500,%eax
  je     L444
  mov    $0x1,%edi
  xor    %eax,%eax
  call   <fail@plt>
L444:
  mov    0x18(%rbx),%eax
  cmp    $0x3700c500,%eax
  je     L158
  mov    $0x1,%edi
  xor    %eax,%eax
  call   <fail@plt>
L158:
  movq   $0x55000800,0x8(%r12)
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <report_subtest@plt>
  nop
L291:
  mov    0xd8(%r12),%rax
  test   $0x40,%al
  je     L291
  mov    0x1c(%rbx),%eax
  cmp    $0x21001,%eax
  je     L367
  mov    $0x2,%edi
  xor    %eax,%eax
  call   <fail@plt>
L367:
  mov    0x20(%rbx),%eax
  cmp    $0x500c000,%eax
  je     L404
  mov    $0x2,%edi
  xor    %eax,%eax
  call   <fail@plt>
L404:
  mov    0x24(%rbx),%eax
  cmp    $0x1000000,%eax
  je     L577
  mov    $0x2,%edi
  xor    %eax,%eax
  call   <fail@plt>
L577:
  mov    0x28(%rbx),%eax
  cmp    $0xe000000,%eax
  je     L247
  mov    $0x2,%edi
  xor    %eax,%eax
  call   <fail@plt>
L247:
  mov    0x2c(%rbx),%eax
  cmp    $0x1000200,%eax
  je     L528
  mov    $0x2,%edi
  xor    %eax,%eax
  call   <fail@plt>
L528:
  mov    0x30(%rbx),%eax
  cmp    $0x3000400,%eax
  je     L223
  mov    $0x2,%edi
  xor    %eax,%eax
  call   <fail@plt>
L223:
  mov    0x34(%rbx),%eax
  cmp    $0x5000600,%eax
  je     L486
  mov    $0x2,%edi
  xor    %eax,%eax
  call   <fail@plt>
L486:
  mov    0x38(%rbx),%eax
  cmp    $0x7000800,%eax
  je     L563
  mov    $0x2,%edi
  xor    %eax,%eax
  call   <fail@plt>
L563:
  mov    0x3c(%rbx),%eax
  cmp    $0x9000a00,%eax
  je     L53
  mov    $0x2,%edi
  xor    %eax,%eax
  call   <fail@plt>
L53:
  mov    0x40(%rbx),%eax
  cmp    $0xb000c00,%eax
  je     L2
  mov    $0x2,%edi
  xor    %eax,%eax
  call   <fail@plt>
L2:
  mov    0x44(%rbx),%eax
  cmp    $0xc7005f00,%eax
  je     L143
  mov    $0x2,%edi
  xor    %eax,%eax
  call   <fail@plt>
L143:
  movq   $0x55000400,0x8(%r12)
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <report_subtest@plt>
  nopl   0x0(%rax,%rax,1)
L112:
  mov    0xd8(%r12),%rax
  test   $0x40,%al
  je     L112
  mov    0x48(%rbx),%eax
  cmp    $0x21001,%eax
  je     L585
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L585:
  mov    0x4c(%rbx),%eax
  cmp    $0x500c000,%eax
  je     L603
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L603:
  mov    0x50(%rbx),%eax
  cmp    $0x2000000,%eax
  je     L295
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L295:
  mov    0x54(%rbx),%eax
  cmp    $0x15000000,%eax
  je     L195
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L195:
  mov    0x58(%rbx),%eax
  cmp    $0x1000200,%eax
  je     L566
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L566:
  mov    0x5c(%rbx),%eax
  cmp    $0x3000400,%eax
  je     L132
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L132:
  mov    0x60(%rbx),%eax
  cmp    $0x5000600,%eax
  je     L244
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L244:
  mov    0x64(%rbx),%eax
  cmp    $0x7000800,%eax
  je     L505
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L505:
  mov    0x68(%rbx),%eax
  cmp    $0x9000a00,%eax
  je     L74
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L74:
  mov    0x6c(%rbx),%eax
  cmp    $0xb000c00,%eax
  je     L254
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L254:
  mov    0x70(%rbx),%eax
  cmp    $0xd000e00,%eax
  je     L485
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L485:
  mov    0x74(%rbx),%eax
  cmp    $0xf001000,%eax
  je     L601
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L601:
  mov    0x78(%rbx),%eax
  cmp    $0x11001200,%eax
  je     L465
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L465:
  mov    0x7c(%rbx),%eax
  cmp    $0x13007d00,%eax
  je     L20
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L20:
  mov    0x80(%rbx),%eax
  cmp    $0xbc000002,%eax
  je     L361
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L361:
  movq   $0x55000c00,0x8(%r12)
  mov    $0x5,%edi
  xor    %eax,%eax
  call   <report_subtest@plt>
  cs nopw 0x0(%rax,%rax,1)
L207:
  mov    0xd8(%r12),%rax
  test   $0x40,%al
  je     L207
  mov    0x84(%rbx),%eax
  cmp    $0x10010500,%eax
  je     L263
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L263:
  mov    0x88(%rbx),%eax
  cmp    $0xc0000300,%eax
  je     L274
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L274:
  mov    0x8c(%rbx),%eax
  cmp    $0x1c00,%eax
  je     L257
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L257:
  mov    0x90(%rbx),%eax
  cmp    $0x100,%eax
  je     L512
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L512:
  mov    0x94(%rbx),%eax
  cmp    $0x2000300,%eax
  je     L250
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L250:
  mov    0x98(%rbx),%eax
  cmp    $0x4000500,%eax
  je     L384
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L384:
  mov    0x9c(%rbx),%eax
  cmp    $0x6000700,%eax
  je     L440
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L440:
  mov    0xa0(%rbx),%eax
  cmp    $0x8000900,%eax
  je     L173
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L173:
  mov    0xa4(%rbx),%eax
  cmp    $0xa000b00,%eax
  je     L337
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L337:
  mov    0xa8(%rbx),%eax
  cmp    $0xc000d00,%eax
  je     L35
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L35:
  mov    0xac(%rbx),%eax
  cmp    $0xe000f00,%eax
  je     L341
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L341:
  mov    0xb0(%rbx),%eax
  cmp    $0x10001100,%eax
  je     L292
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L292:
  mov    0xb4(%rbx),%eax
  cmp    $0x12001300,%eax
  je     L25
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L25:
  mov    0xb8(%rbx),%eax
  cmp    $0x14001500,%eax
  je     L151
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L151:
  mov    0xbc(%rbx),%eax
  cmp    $0x16001700,%eax
  je     L205
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L205:
  mov    0xc0(%rbx),%eax
  cmp    $0x18001900,%eax
  je     L376
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L376:
  mov    0xc4(%rbx),%eax
  cmp    $0x1a004b00,%eax
  je     L52
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L52:
  mov    0xc8(%rbx),%eax
  cmp    $0x11000002,%eax
  je     L427
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L427:
  add    $0xcc,%rbx
  mov    0x60(%r12),%rax
  movslq %ebx,%rbx
  cmp    %rbx,%rax
  je     L514
  mov    $0x5,%edi
  xor    %eax,%eax
  call   <fail@plt>
L514:
  xor    %eax,%eax
  mov    $0x6,%edi
  call   <report_subtest@plt>
  mov    -0x28(%rbp),%rax
  sub    %fs:0x28,%rax
  jne    L10
  lea    -0x20(%rbp),%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %rbp
  ret
  nopl   0x0(%rax,%rax,1)
L396:
  orq    $0x0,-0x8(%rsp,%rdx,1)
  jmp    L584
L10:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
grtc_test(int paddr, int buffersize) {
  report_device(0x01031000);
  struct grtc_reg {
    volatile unsigned long grr;
    volatile unsigned long gcr;
    volatile unsigned long pmr;
    volatile unsigned long sir;
    volatile unsigned long far;
    volatile unsigned long clcwr1;
    volatile unsigned long clcwr2;
    volatile unsigned long phir;
    volatile unsigned long cor;
    volatile unsigned long str;
    volatile unsigned long asr;
    volatile unsigned long rrp;
    volatile unsigned long rwp;
    volatile unsigned long dummy0;
    volatile unsigned long dummy1;
    volatile unsigned long dummy2;
    volatile unsigned long dummy3;
    volatile unsigned long dummy4;
    volatile unsigned long dummy5;
    volatile unsigned long dummy6;
    volatile unsigned long dummy7;
    volatile unsigned long dummy8;
    volatile unsigned long dummy9;
    volatile unsigned long dummy10;
    volatile unsigned long pimsr;
    volatile unsigned long pimr;
    volatile unsigned long pisr;
    volatile unsigned long pir;
    volatile unsigned long imr;
    volatile unsigned long picr;
  };
  struct grtc_reg *ltc = (struct grtc_reg *)(paddr);
  report_subtest(0x0);
  int SEB = 0x55;
  int SRST = 1;
  ltc->grr = (SEB << 24) | (SRST);
  int PSS = 0;
  int NRZM = 0;
  int PSR = 0;
  ltc->gcr = (SEB << 24) | (PSS << 12) | (NRZM << 11) | (PSR << 10);
  int MASK = 0;
  ltc->pmr = MASK;
  int CWTY = 0;
  int VNUM = 0;
  int STAF = 0;
  int CIE = 0;
  int VCI = 0;
  int NRFA = 0;
  int NBLO = 0;
  int LOUT = 0;
  int WAIT = 0;
  int RTMI = 0;
  int FBCO = 0;
  int RTYPE = 0;
  int RVAL = 0;
  volatile long int framememory[buffersize / 4];
  long int framememorybase;
  framememorybase = (long int)&framememory[0];
  framememorybase = framememorybase & 0xFFFFFC00;
  framememorybase = framememorybase + 0x400;
  int BUFST = (framememorybase >> 10) & 0x003FFFFF;
  int RXLEN = (buffersize / 1024 - 1) & 0x3FF;
  ltc->asr = (BUFST << 10) | (RXLEN);
  int PCS = 0;
  int POV = 0;
  int PRBF = 0;
  int PCR = 0;
  int PFAR = 0;
  int PBLO = 0;
  int PRFA = 0;
  int CRST = 0;
  int RE = 1;
  ltc->cor = (SEB << 24) | (CRST << 9) | (RE);
  report_subtest(0x1);
  report_subtest(0x2);
  while ((ltc->pir & 0x40) != 0x40)
    ;
  volatile int *memoryrx;
  memoryrx = (int *)framememorybase;
  if (0x10010500 != *memoryrx)
    fail(1);
  memoryrx++;
  if (0xC0000000 != *memoryrx)
    fail(1);
  memoryrx++;
  if (0x00000700 != *memoryrx)
    fail(1);
  memoryrx++;
  if (0x00000100 != *memoryrx)
    fail(1);
  memoryrx++;
  if (0x02000300 != *memoryrx)
    fail(1);
  memoryrx++;
  if (0x04000500 != *memoryrx)
    fail(1);
  memoryrx++;
  if (0x3700C500 != *memoryrx)
    fail(1);
  memoryrx++;
  NRZM = 1;
  PSR = 0;
  ltc->gcr = (SEB << 24) | (PSS << 12) | (NRZM << 11) | (PSR << 10);
  report_subtest(0x3);
  while ((ltc->pir & 0x40) != 0x40)
    ;
  if (0x00021001 != *memoryrx)
    fail(2);
  memoryrx++;
  if (0x0500C000 != *memoryrx)
    fail(2);
  memoryrx++;
  if (0x01000000 != *memoryrx)
    fail(2);
  memoryrx++;
  if (0x0E000000 != *memoryrx)
    fail(2);
  memoryrx++;
  if (0x01000200 != *memoryrx)
    fail(2);
  memoryrx++;
  if (0x03000400 != *memoryrx)
    fail(2);
  memoryrx++;
  if (0x05000600 != *memoryrx)
    fail(2);
  memoryrx++;
  if (0x07000800 != *memoryrx)
    fail(2);
  memoryrx++;
  if (0x09000A00 != *memoryrx)
    fail(2);
  memoryrx++;
  if (0x0B000C00 != *memoryrx)
    fail(2);
  memoryrx++;
  if (0xC7005F00 != *memoryrx)
    fail(2);
  memoryrx++;
  NRZM = 0;
  PSR = 1;
  ltc->gcr = (SEB << 24) | (PSS << 12) | (NRZM << 11) | (PSR << 10);
  report_subtest(0x4);
  while ((ltc->pir & 0x40) != 0x40)
    ;
  if (0x00021001 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x0500C000 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x02000000 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x15000000 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x01000200 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x03000400 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x05000600 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x07000800 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x09000A00 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x0B000C00 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x0D000E00 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x0F001000 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x11001200 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0x13007D00 != *memoryrx)
    fail(3);
  memoryrx++;
  if (0xBC000002 != *memoryrx)
    fail(3);
  memoryrx++;
  NRZM = 1;
  PSR = 1;
  ltc->gcr = (SEB << 24) | (PSS << 12) | (NRZM << 11) | (PSR << 10);
  report_subtest(0x5);
  while ((ltc->pir & 0x40) != 0x40)
    ;
  if (0x10010500 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0xC0000300 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x00001C00 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x00000100 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x02000300 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x04000500 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x06000700 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x08000900 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x0A000B00 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x0C000D00 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x0E000F00 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x10001100 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x12001300 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x14001500 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x16001700 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x18001900 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x1A004B00 != *memoryrx)
    fail(4);
  memoryrx++;
  if (0x11000002 != *memoryrx)
    fail(4);
  memoryrx++;
  int RXWRPR = memoryrx;
  if (ltc->rwp != RXWRPR)
    fail(5);
  report_subtest(0x6);
}
```