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

```asm
<E512>:
  endbr64
  push   %r15
  mov    %rdx,%rax
  mov    %r8,%rdx
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0xb18,%rsp
  movdqu (%rdi),%xmm0
  movdqu (%rax),%xmm4
  mov    %rsi,0x18(%rsp)
  movdqu 0x10(%rdi),%xmm1
  mov    %rcx,%rsi
  lea    0x80(%rsp),%rbx
  movdqu 0x20(%rdi),%xmm2
  movdqu 0x30(%rdi),%xmm3
  mov    %rbx,%rdi
  lea    0x30(%rsp),%rbp
  movdqu 0x10(%rax),%xmm5
  movdqu 0x20(%rax),%xmm6
  lea    0x20(%rsp),%r12
  lea    0x40(%rsp),%r13
  mov    %fs:0x28,%rcx
  mov    %rcx,0xb08(%rsp)
  xor    %ecx,%ecx
  movdqu 0x30(%rax),%xmm7
  movaps %xmm0,0x40(%rsp)
  movdqu 0x40(%rax),%xmm0
  movaps %xmm1,0x50(%rsp)
  movdqu 0x50(%rax),%xmm1
  lea    0x50(%rsp),%r15
  movaps %xmm2,0x60(%rsp)
  movdqu 0x60(%rax),%xmm2
  movaps %xmm4,0x80(%rsp)
  movaps %xmm5,0x90(%rsp)
  movaps %xmm6,0xa0(%rsp)
  movaps %xmm7,0xb0(%rsp)
  movaps %xmm0,0xc0(%rsp)
  movaps %xmm1,0xd0(%rsp)
  movaps %xmm2,0xe0(%rsp)
  movaps %xmm3,0x70(%rsp)
  movdqu 0x70(%rax),%xmm3
  movaps %xmm3,0xf0(%rsp)
  call   <MessageExpansion512@plt>
  lea    0x780(%rsp),%rax
  mov    %rax,0x10(%rsp)
  nopl   (%rax)
L21:
  mov    0x50(%rsp),%rax
  mov    %rbx,%rdx
  mov    %rbp,%rsi
  mov    %r12,%rdi
  mov    %rbp,%r14
  mov    %rax,0x20(%rsp)
  mov    0x58(%rsp),%rax
  mov    %rax,0x28(%rsp)
  call   <roundAESkeyfirst@plt>
  mov    0x30(%rsp),%rax
  mov    %rbp,%rsi
  mov    %r12,%rdi
  lea    0x10(%rbx),%rdx
  mov    %rax,0x20(%rsp)
  mov    0x38(%rsp),%rax
  mov    %rax,0x28(%rsp)
  call   <roundAESkeyfirst@plt>
  mov    0x30(%rsp),%rax
  mov    %rbp,%rsi
  mov    %r12,%rdi
  lea    0x20(%rbx),%rdx
  mov    %rax,0x20(%rsp)
  mov    0x38(%rsp),%rax
  mov    %rax,0x28(%rsp)
  call   <roundAESkeyfirst@plt>
  mov    0x30(%rsp),%rax
  mov    %rbp,%rsi
  mov    %r12,%rdi
  lea    0x30(%rbx),%rdx
  mov    %rax,0x20(%rsp)
  mov    0x38(%rsp),%rax
  mov    %rax,0x28(%rsp)
  call   <roundAESkeyfirst@plt>
  mov    %r13,%rcx
  mov    %rbp,%rdx
  mov    %r13,%rax
L48:
  mov    (%rdx),%esi
  xor    %esi,(%rax)
  add    $0x4,%rax
  add    $0x4,%rdx
  cmp    %r15,%rax
  jne    L48
  mov    0x70(%rsp),%rax
  lea    0x40(%rbx),%rdx
  mov    %rbp,%rsi
  mov    %r12,%rdi
  mov    %rcx,0x8(%rsp)
  mov    %rax,0x20(%rsp)
  mov    0x78(%rsp),%rax
  mov    %rax,0x28(%rsp)
  call   <roundAESkeyfirst@plt>
  mov    0x30(%rsp),%rax
  mov    %rbp,%rsi
  mov    %r12,%rdi
  lea    0x50(%rbx),%rdx
  mov    %rax,0x20(%rsp)
  mov    0x38(%rsp),%rax
  mov    %rax,0x28(%rsp)
  call   <roundAESkeyfirst@plt>
  mov    0x30(%rsp),%rax
  mov    %rbp,%rsi
  mov    %r12,%rdi
  lea    0x60(%rbx),%rdx
  mov    %rax,0x20(%rsp)
  mov    0x38(%rsp),%rax
  mov    %rax,0x28(%rsp)
  call   <roundAESkeyfirst@plt>
  mov    0x30(%rsp),%rax
  mov    %rbp,%rsi
  mov    %r12,%rdi
  lea    0x70(%rbx),%rdx
  mov    %rax,0x20(%rsp)
  mov    0x38(%rsp),%rax
  mov    %rax,0x28(%rsp)
  call   <roundAESkeyfirst@plt>
  mov    0x8(%rsp),%rcx
  mov    %r13,%rax
L24:
  mov    (%r14),%edx
  xor    %edx,0x20(%rax)
  add    $0x4,%rax
  add    $0x4,%r14
  cmp    %r15,%rax
  jne    L24
L9:
  mov    0x10(%rcx),%edx
  mov    (%rcx),%eax
  add    $0x4,%rcx
  mov    %edx,-0x4(%rcx)
  mov    0x1c(%rcx),%edx
  mov    %edx,0xc(%rcx)
  mov    0x2c(%rcx),%edx
  mov    %eax,0x2c(%rcx)
  mov    %edx,0x1c(%rcx)
  cmp    %rcx,%r15
  jne    L9
  sub    $0xffffffffffffff80,%rbx
  cmp    %rbx,0x10(%rsp)
  jne    L21
  mov    0x18(%rsp),%rax
  movdqa 0x40(%rsp),%xmm4
  movdqa 0x50(%rsp),%xmm5
  movdqa 0x60(%rsp),%xmm6
  movdqa 0x70(%rsp),%xmm7
  movups %xmm4,(%rax)
  movups %xmm5,0x10(%rax)
  movups %xmm6,0x20(%rax)
  movups %xmm7,0x30(%rax)
  mov    0xb08(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L15
  add    $0xb18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L15:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void E512(uint32_t pt[16], uint32_t ct[16], uint32_t message[32], uint32_t salt[16], uint32_t counter[4]) {
  uint32_t state[16], i, j;
  uint32_t input[4], output[4], temp;
  uint32_t rk[(14 * 4 * (4) * 3)];
  for (i = 0; i < 16; i++)
    state[i] = pt[i];
  for (i = 0; i < 32; i++)
    rk[i] = message[i];
  MessageExpansion512(rk, salt, counter);
  for (i = 0; i < 14; i++) {
    for (j = 0; j < 4; j++)
      input[j] = state[4 + j];
    roundAESkeyfirst(input, output, rk + 32 * i);
    for (j = 0; j < 4; j++)
      input[j] = output[j];
    roundAESkeyfirst(input, output, rk + 32 * i + 4);
    for (j = 0; j < 4; j++)
      input[j] = output[j];
    roundAESkeyfirst(input, output, rk + 32 * i + 8);
    for (j = 0; j < 4; j++)
      input[j] = output[j];
    roundAESkeyfirst(input, output, rk + 32 * i + 12);
    for (j = 0; j < 4; j++)
      state[j] ^= output[j];
    for (j = 0; j < 4; j++)
      input[j] = state[12 + j];
    roundAESkeyfirst(input, output, rk + 32 * i + 16);
    for (j = 0; j < 4; j++)
      input[j] = output[j];
    roundAESkeyfirst(input, output, rk + 32 * i + 20);
    for (j = 0; j < 4; j++)
      input[j] = output[j];
    roundAESkeyfirst(input, output, rk + 32 * i + 24);
    for (j = 0; j < 4; j++)
      input[j] = output[j];
    roundAESkeyfirst(input, output, rk + 32 * i + 28);
    for (j = 0; j < 4; j++)
      state[8 + j] ^= output[j];
    for (j = 0; j < 4; j++) {
      temp = state[j];
      state[j] = state[j + 4];
      state[j + 4] = state[j + 8];
      state[j + 8] = state[j + 12];
      state[j + 12] = temp;
    }
  }
  for (i = 0; i < 16; i++)
    ct[i] = state[i];
  return;
}
```