user: Please show me the C implementation that matches the assembly code listed below:

```asm
<l2ramtest>:
  endbr64
  push   %r15
  xor    %eax,%eax
  push   %r14
  mov    %rdi,%r14
  mov    $0x104b000,%edi
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  call   <report_device@plt>
  mov    0x4(%r14),%eax
  mov    0x4(%r14),%r12d
  movl   $0x7,0x8(%r14)
  and    $0x3,%eax
  sar    $0x2,%r12d
  mov    %eax,0x2c(%rsp)
  mov    %eax,%r15d
  and    $0x7ff,%r12d
  nop
  movl   $0x0,(%r14)
  mov    $0xa,%edi
  xor    %eax,%eax
  call   <report_subtest@plt>
  mov    %r12d,%eax
  movl   $0xffffffff,0x80000(%r14)
  mov    0x80000(%r14),%ebx
  shl    $0x8,%eax
  mov    %ebx,%ebp
  and    $0xaaaaaaaa,%ebx
  and    $0x55555555,%ebp
  test   %r12d,%r12d
  je     L153
  sub    $0x1,%eax
  lea    0x80000(%r14),%rsi
  lea    0x1(%r15),%ecx
  mov    %eax,%edi
  mov    %eax,0x1c(%rsp)
  movslq %ecx,%r8
  lea    0x80040(%r14),%r12
  mov    %rsi,0x20(%rsp)
  shr    $0x4,%edi
  mov    %ecx,0x28(%rsp)
  shl    $0x4,%rdi
  xor    %ecx,%ecx
L30:
  lea    (%rdi,%rcx,1),%rax
  lea    (%r12,%rax,4),%rdx
  mov    %rsi,%rax
  nopl   0x0(%rax)
L14:
  mov    %ebp,(%rax)
  add    $0x40,%rax
  mov    %ebx,-0x20(%rax)
  cmp    %rdx,%rax
  jne    L14
  add    $0x1,%rcx
  add    $0x4,%rsi
  cmp    %r8,%rcx
  jne    L30
  mov    0x1c(%rsp),%eax
  movl   $0x0,0x8(%rsp)
  movq   $0x0,0x10(%rsp)
  shr    $0x4,%eax
  shl    $0x6,%rax
  add    %rax,%r12
L116:
  mov    0x10(%rsp),%rax
  mov    0x20(%rsp),%r15
  lea    0x20(%rax),%r13
L19:
  mov    (%r15),%eax
  cmp    %ebp,%eax
  je     L66
  mov    $0x1,%edi
  xor    %eax,%eax
  call   <fail@plt>
L66:
  lea    0x0(%r13,%r15,1),%rax
  mov    (%rax),%eax
  cmp    %ebx,%eax
  je     L79
  mov    $0x1,%edi
  xor    %eax,%eax
  call   <fail@plt>
L79:
  add    $0x40,%r15
  cmp    %r12,%r15
  jne    L19
  addl   $0x1,0x8(%rsp)
  mov    0x8(%rsp),%eax
  addq   $0x4,0x10(%rsp)
  cmp    0x28(%rsp),%eax
  jne    L116
  mov    $0xc,%edi
  xor    %eax,%eax
  lea    0x8(%r14),%r12
  call   <report_subtest@plt>
  mov    0x2c(%rsp),%eax
  mov    0x1c(%rsp),%esi
  mov    $0x80000,%ecx
  add    $0x5,%eax
  shr    %esi
  mov    %eax,0x10(%rsp)
  movslq %eax,%rdi
  add    %rsi,%rsi
  shl    $0x11,%rdi
L62:
  lea    (%rcx,%rsi,1),%rdx
  lea    (%r14,%rcx,4),%rax
  lea    (%r12,%rdx,4),%rdx
  nopl   0x0(%rax)
L171:
  movl   $0x55555555,(%rax)
  add    $0x8,%rax
  movl   $0xaaaaaaaa,-0x4(%rax)
  cmp    %rax,%rdx
  jne    L171
  add    $0x20000,%rcx
  cmp    %rcx,%rdi
  jne    L62
  movslq 0x10(%rsp),%rax
  mov    0x1c(%rsp),%r13d
  mov    $0x80000,%ebp
  shl    $0x11,%rax
  shr    %r13d
  mov    %rax,0x8(%rsp)
  add    %r13,%r13
L178:
  lea    0x0(%rbp,%r13,1),%rax
  lea    (%r14,%rbp,4),%r15
  lea    (%r12,%rax,4),%rbx
  nopl   (%rax)
L142:
  mov    (%r15),%eax
  cmp    $0x55555555,%eax
  je     L182
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L182:
  mov    0x4(%r15),%eax
  cmp    $0xaaaaaaaa,%eax
  je     L111
  mov    $0x3,%edi
  xor    %eax,%eax
  call   <fail@plt>
L111:
  add    $0x8,%r15
  cmp    %r15,%rbx
  jne    L142
  add    $0x20000,%rbp
  cmp    %rbp,0x8(%rsp)
  jne    L178
  mov    0x1c(%rsp),%esi
  movslq 0x10(%rsp),%rdi
  mov    $0x80000,%ecx
  shr    %esi
  shl    $0x11,%rdi
  add    %rsi,%rsi
L170:
  lea    (%rcx,%rsi,1),%rdx
  lea    (%r14,%rcx,4),%rax
  lea    (%r12,%rdx,4),%rdx
  nop
L94:
  movl   $0x55555555,0x4(%rax)
  add    $0x8,%rax
  movl   $0xaaaaaaaa,-0x8(%rax)
  cmp    %rax,%rdx
  jne    L94
  add    $0x20000,%rcx
  cmp    %rcx,%rdi
  jne    L170
  movslq 0x10(%rsp),%r13
  mov    0x1c(%rsp),%r15d
  mov    $0x80000,%ebp
  shl    $0x11,%r13
  shr    %r15d
  mov    %r13,0x8(%rsp)
  add    %r15,%r15
L22:
  lea    0x0(%rbp,%r15,1),%rax
  lea    (%r14,%rbp,4),%r13
  lea    (%r12,%rax,4),%rbx
  xchg   %ax,%ax
L8:
  mov    0x4(%r13),%eax
  cmp    $0x55555555,%eax
  je     L192
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L192:
  mov    0x0(%r13),%eax
  cmp    $0xaaaaaaaa,%eax
  je     L98
  mov    $0x4,%edi
  xor    %eax,%eax
  call   <fail@plt>
L98:
  add    $0x8,%r13
  cmp    %r13,%rbx
  jne    L8
  add    $0x20000,%rbp
  cmp    %rbp,0x8(%rsp)
  jne    L22
L96:
  movl   $0x5,0x8(%r14)
  xor    %eax,%eax
  movl   $0x80000000,(%r14)
  add    $0x38,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L153:
  mov    $0xc,%edi
  xor    %eax,%eax
  call   <report_subtest@plt>
  jmp    L96
```

assistant: ```c
l2ramtest(volatile int *l2reg, volatile int *carea) {
  int i, j;
  int ways, waysize;
  int tagmask, pat55, patAA;
  report_device(0x0104b000);
  ways = (l2reg[1] & 3) + 1;
  waysize = ((l2reg[1] >> 2) & 0x7ff);
  l2reg[0x08 / 4] = 7;
  asm("nop;");
  l2reg[0] = 0;
  report_subtest(10);
  l2reg[0x80000 / 4] = -1;
  tagmask = l2reg[0x80000 / 4];
  pat55 = 0x55555555 & tagmask;
  patAA = 0xaaaaaaaa & tagmask;
  for (i = 0; i < ways; i++) {
    for (j = 0; j < waysize * 1024 / 4; j += 16) {
      l2reg[0x80000 / 4 + j + i] = pat55;
      l2reg[0x80000 / 4 + j + i + 8] = patAA;
    }
  }
  for (i = 0; i < ways; i++) {
    for (j = 0; j < waysize * 1024 / 4; j += 16) {
      if (l2reg[0x80000 / 4 + j] != pat55)
        fail(1);
      if (l2reg[0x80000 / 4 + j + i + 8] != patAA)
        fail(1);
    }
  }
  report_subtest(12);
  for (i = 0; i < ways; i++) {
    for (j = 0; j < waysize * 1024 / 4; j += 2) {
      l2reg[0x200000 / 4 + i * 0x80000 / 4 + j] = 0x55555555;
      l2reg[0x200000 / 4 + i * 0x80000 / 4 + j + 1] = 0xaaaaaaaa;
    }
  }
  for (i = 0; i < ways; i++) {
    for (j = 0; j < waysize * 1024 / 4; j += 2) {
      if (l2reg[0x200000 / 4 + i * 0x80000 / 4 + j] != 0x55555555)
        fail(3);
      if (l2reg[0x200000 / 4 + i * 0x80000 / 4 + j + 1] != 0xaaaaaaaa)
        fail(3);
    }
  }
  for (i = 0; i < ways; i++) {
    for (j = 0; j < waysize * 1024 / 4; j += 2) {
      l2reg[0x200000 / 4 + i * 0x80000 / 4 + j + 1] = 0x55555555;
      l2reg[0x200000 / 4 + i * 0x80000 / 4 + j] = 0xaaaaaaaa;
    }
  }
  for (i = 0; i < ways; i++) {
    for (j = 0; j < waysize * 1024 / 4; j += 2) {
      if (l2reg[0x200000 / 4 + i * 0x80000 / 4 + j + 1] != 0x55555555)
        fail(4);
      if (l2reg[0x200000 / 4 + i * 0x80000 / 4 + j] != 0xaaaaaaaa)
        fail(4);
    }
  }
  l2reg[0x08 / 4] = 5;
  l2reg[0] = 0x80000000;
}
```