user: 请将以下的汇编代码转换成C语言代码：

```asm
<gemm_nt>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    0x38(%rsp),%r15d
  mov    %edi,-0x20(%rsp)
  mov    %r8d,-0x1c(%rsp)
  test   %edi,%edi
  jle    L52
  mov    %esi,%eax
  test   %esi,%esi
  jle    L52
  lea    -0x1(%rdx),%ebx
  mov    %edx,%r12d
  shr    $0x2,%edx
  sub    $0x1,%eax
  lea    -0x1(%rdx),%r11d
  mov    0x40(%rsp),%rdx
  mov    %r12d,%r13d
  mov    %ebx,-0x2c(%rsp)
  movl   $0x0,-0x24(%rsp)
  mov    %rcx,%rdi
  movaps %xmm0,%xmm5
  xor    %ebx,%ebx
  add    $0x4,%rdx
  mov    %rax,-0x18(%rsp)
  add    $0x1,%r11
  movaps %xmm0,%xmm3
  mov    %rdx,-0x10(%rsp)
  movaps %xmm0,%xmm4
  mov    %r9,%rcx
  shl    $0x4,%r11
  and    $0xfffffffc,%r13d
  pxor   %xmm6,%xmm6
  shufps $0xe0,%xmm5,%xmm5
  shufps $0x0,%xmm3,%xmm3
  movl   $0x0,-0x28(%rsp)
  nopl   0x0(%rax)
L8:
  movslq -0x24(%rsp),%rax
  mov    0x40(%rsp),%rdx
  movslq %ebx,%r14
  lea    (%rdi,%r14,4),%r10
  lea    (%rdx,%rax,4),%r8
  mov    -0x10(%rsp),%rdx
  add    -0x18(%rsp),%rax
  lea    (%rdx,%rax,4),%rax
  xor    %edx,%edx
  mov    %rax,-0x38(%rsp)
  nopw   0x0(%rax,%rax,1)
L103:
  movaps %xmm6,%xmm1
  test   %r12d,%r12d
  jle    L84
  cmpl   $0x2,-0x2c(%rsp)
  jbe    L65
  movslq %edx,%rax
  movaps %xmm6,%xmm1
  lea    (%rcx,%rax,4),%rsi
  xor    %eax,%eax
  nopl   0x0(%rax,%rax,1)
L56:
  movups (%r10,%rax,1),%xmm0
  movups (%rsi,%rax,1),%xmm7
  add    $0x10,%rax
  mulps  %xmm3,%xmm0
  mulps  %xmm7,%xmm0
  addss  %xmm0,%xmm1
  movaps %xmm0,%xmm2
  shufps $0x55,%xmm0,%xmm2
  addss  %xmm1,%xmm2
  movaps %xmm0,%xmm1
  unpckhps %xmm0,%xmm1
  shufps $0xff,%xmm0,%xmm0
  addss  %xmm2,%xmm1
  addss  %xmm0,%xmm1
  cmp    %r11,%rax
  jne    L56
  cmp    %r12d,%r13d
  je     L84
  mov    %r13d,%esi
  mov    %r13d,%eax
L10:
  mov    %r12d,%ebp
  sub    %esi,%ebp
  cmp    $0x1,%ebp
  je     L61
  lea    (%r14,%rsi,1),%r9
  movq   (%rdi,%r9,4),%xmm0
  movslq %edx,%r9
  add    %rsi,%r9
  mov    %ebp,%esi
  mulps  %xmm5,%xmm0
  movq   (%rcx,%r9,4),%xmm2
  and    $0xfffffffe,%esi
  add    %esi,%eax
  mulps  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  shufps $0xe5,%xmm0,%xmm0
  addss  %xmm0,%xmm1
  cmp    %esi,%ebp
  je     L84
L61:
  lea    (%rbx,%rax,1),%esi
  add    %edx,%eax
  movslq %esi,%rsi
  cltq
  movss  (%rdi,%rsi,4),%xmm0
  mulss  %xmm4,%xmm0
  mulss  (%rcx,%rax,4),%xmm0
  addss  %xmm0,%xmm1
L84:
  addss  (%r8),%xmm1
  add    %r15d,%edx
  add    $0x4,%r8
  movss  %xmm1,-0x4(%r8)
  cmp    %r8,-0x38(%rsp)
  jne    L103
  addl   $0x1,-0x28(%rsp)
  mov    0x48(%rsp),%esi
  mov    -0x28(%rsp),%eax
  add    %esi,-0x24(%rsp)
  add    -0x1c(%rsp),%ebx
  cmp    %eax,-0x20(%rsp)
  jne    L8
L52:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L65:
  xor    %esi,%esi
  movaps %xmm6,%xmm1
  xor    %eax,%eax
  jmp    L10
```

assistant: ```c
void gemm_nt(int M, int N, int K, float ALPHA, float *A, int lda, float *B, int ldb, float *C, int ldc) {
  int i, j, k;
#pragma omp parallel for
  for (i = 0; i < M; ++i) {
    for (j = 0; j < N; ++j) {
      register float sum = 0;
      for (k = 0; k < K; ++k) {
        sum += ALPHA * A[i * lda + k] * B[j * ldb + k];
      }
      C[i * ldc + j] += sum;
    }
  }
}
```