user: Translate the below assembly code into C programming language:

```asm
<merge>:
  endbr64
  push   %r15
  mov    %rdi,%r10
  mov    %rsi,%r9
  mov    %ecx,%edi
  push   %r14
  mov    %rdx,%rsi
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  test   %ecx,%ecx
  jle    L4
  test   %r8d,%r8d
  jle    L4
  mov    $0x1,%r11d
  xor    %eax,%eax
  xor    %edx,%edx
  xor    %r13d,%r13d
  xor    %r12d,%r12d
  nopw   0x0(%rax,%rax,1)
L265:
  mov    (%r10,%r13,4),%ebp
  mov    (%r9,%r12,4),%ebx
  mov    %r11d,%ecx
  cmp    %ebp,%ebx
  jle    L237
L15:
  mov    %ebp,-0x4(%rsi,%r11,4)
  add    $0x1,%edx
  add    $0x1,%r11
  cmp    %eax,%r8d
  jle    L232
  cmp    %edx,%edi
  jle    L121
  movslq %edx,%r13
  mov    (%r9,%r12,4),%ebx
  mov    %r11d,%ecx
  mov    (%r10,%r13,4),%ebp
  cmp    %ebp,%ebx
  jg     L15
L237:
  mov    %ebx,-0x4(%rsi,%r11,4)
  add    $0x1,%eax
  add    $0x1,%r11
  cmp    %edx,%edi
  jle    L121
  cmp    %eax,%r8d
  jle    L232
  movslq %eax,%r12
  jmp    L265
L4:
  xor    %ecx,%ecx
  xor    %eax,%eax
  xor    %edx,%edx
  cs nopw 0x0(%rax,%rax,1)
L232:
  cmp    %edx,%edi
  jle    L121
  movslq %ecx,%r13
  movslq %edx,%rbx
  mov    %edi,%r12d
  lea    0x1(%rbx),%r14
  shl    $0x2,%r13
  sub    %edx,%r12d
  mov    %r14,-0x10(%rsp)
  lea    (%rsi,%r13,1),%rbp
  shl    $0x2,%r14
  lea    (%r10,%r14,1),%r15
  mov    %rbp,%r11
  sub    %r15,%r11
  cmp    $0x8,%r11
  jbe    L214
  lea    -0x1(%r12),%r15d
  cmp    $0x2,%r15d
  jbe    L214
  mov    %r12d,%ebx
  lea    -0x4(%r10,%r14,1),%r13
  xor    %r11d,%r11d
  shr    $0x2,%ebx
  shl    $0x4,%rbx
  xchg   %ax,%ax
L215:
  movdqu 0x0(%r13,%r11,1),%xmm0
  movups %xmm0,0x0(%rbp,%r11,1)
  add    $0x10,%r11
  cmp    %rbx,%r11
  jne    L215
  mov    %r12d,%r11d
  and    $0xfffffffc,%r11d
  add    %r11d,%edx
  lea    (%rcx,%r11,1),%ebx
  cmp    %r11d,%r12d
  je     L1
  movslq %edx,%r13
  lea    0x1(%rbx),%ebp
  lea    0x1(%rdx),%r11d
  movslq %ebx,%rbx
  mov    (%r10,%r13,4),%r13d
  mov    %r13d,(%rsi,%rbx,4)
  cmp    %r11d,%edi
  jle    L1
  movslq %r11d,%r11
  movslq %ebp,%rbx
  add    $0x2,%edx
  lea    0x0(,%r11,4),%r13
  mov    (%r10,%r11,4),%r11d
  lea    0x0(,%rbx,4),%rbp
  mov    %r11d,(%rsi,%rbx,4)
  cmp    %edx,%edi
  jle    L1
  mov    0x4(%r10,%r13,1),%edx
  mov    %edx,0x4(%rsi,%rbp,1)
L1:
  add    %r12d,%ecx
L121:
  cmp    %eax,%r8d
  jle    L84
  movslq %ecx,%r11
  movslq %eax,%rdi
  mov    %r8d,%ebx
  shl    $0x2,%r11
  lea    0x1(%rdi),%rdx
  sub    %eax,%ebx
  lea    (%rsi,%r11,1),%r10
  lea    0x0(,%rdx,4),%rbp
  lea    (%r9,%rbp,1),%r13
  mov    %r10,%r12
  sub    %r13,%r12
  cmp    $0x8,%r12
  jbe    L13
  lea    -0x1(%rbx),%r12d
  cmp    $0x2,%r12d
  jbe    L13
  mov    %ebx,%edi
  lea    -0x4(%r9,%rbp,1),%r11
  xor    %edx,%edx
  shr    $0x2,%edi
  shl    $0x4,%rdi
  xchg   %ax,%ax
L79:
  movdqu (%r11,%rdx,1),%xmm1
  movups %xmm1,(%r10,%rdx,1)
  add    $0x10,%rdx
  cmp    %rdx,%rdi
  jne    L79
  mov    %ebx,%edx
  and    $0xfffffffc,%edx
  add    %edx,%eax
  add    %edx,%ecx
  cmp    %edx,%ebx
  je     L84
  movslq %eax,%r10
  lea    0x1(%rcx),%edi
  lea    0x1(%rax),%edx
  movslq %ecx,%rcx
  mov    (%r9,%r10,4),%r10d
  mov    %r10d,(%rsi,%rcx,4)
  cmp    %edx,%r8d
  jle    L84
  movslq %edx,%rdx
  movslq %edi,%rcx
  add    $0x2,%eax
  lea    0x0(,%rdx,4),%r10
  mov    (%r9,%rdx,4),%edx
  lea    0x0(,%rcx,4),%rdi
  mov    %edx,(%rsi,%rcx,4)
  cmp    %r8d,%eax
  jge    L84
  mov    0x4(%r9,%r10,1),%eax
  mov    %eax,0x4(%rsi,%rdi,1)
L84:
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   (%rax)
L214:
  mov    %rbx,%rdx
  mov    -0x10(%rsp),%r11
  neg    %rdx
  lea    0x0(%r13,%rdx,4),%rbp
  add    %rsi,%rbp
  jmp    L8
  nopl   (%rax)
L147:
  add    $0x1,%r11
L8:
  mov    (%r10,%rbx,4),%edx
  mov    %edx,0x0(%rbp,%rbx,4)
  mov    %r11,%rbx
  cmp    %r11d,%edi
  jg     L147
  add    %r12d,%ecx
  jmp    L121
  nopl   0x0(%rax)
L13:
  mov    %rdi,%rax
  neg    %rax
  lea    (%r11,%rax,4),%rax
  add    %rax,%rsi
  jmp    L92
  nop
L125:
  add    $0x1,%rdx
L92:
  mov    (%r9,%rdi,4),%eax
  mov    %eax,(%rsi,%rdi,4)
  mov    %rdx,%rdi
  cmp    %edx,%r8d
  jg     L125
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int merge(int lf[], int rt[], int a[], int m, int n) {
  int i, j, k;
  i = 0;
  j = 0;
  k = 0;
  while (i < m && j < n) {
    if (lf[i] < rt[j])
      a[k++] = lf[i++];
    else
      a[k++] = rt[j++];
  }
  while (i < m)
    a[k++] = lf[i++];
  while (j < n)
    a[k++] = rt[j++];
}
```