user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<merge>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  mov    %rdi,%r13
  lea    (%rsi,%rcx,1),%edi
  push   %r12
  shl    $0x2,%edi
  mov    %rdx,%r12
  push   %rbp
  mov    %esi,%ebp
  push   %rbx
  mov    %ecx,%ebx
  sub    $0x18,%rsp
  call   <malloc@plt>
  test   %ebp,%ebp
  jle    L249
  test   %ebx,%ebx
  jle    L249
  mov    $0x1,%edi
  xor    %edx,%edx
  xor    %ecx,%ecx
  xor    %r11d,%r11d
  xor    %r10d,%r10d
  xchg   %ax,%ax
L60:
  mov    0x0(%r13,%r11,4),%r9d
  mov    (%r12,%r10,4),%r8d
  mov    %edi,%esi
  cmp    %r9d,%r8d
  jl     L227
L196:
  mov    %r9d,-0x4(%rax,%rdi,4)
  add    $0x1,%ecx
  add    $0x1,%rdi
  cmp    %edx,%ebx
  jle    L189
  cmp    %ecx,%ebp
  jle    L12
  movslq %ecx,%r11
  mov    (%r12,%r10,4),%r8d
  mov    %edi,%esi
  mov    0x0(%r13,%r11,4),%r9d
  cmp    %r9d,%r8d
  jge    L196
L227:
  mov    %r8d,-0x4(%rax,%rdi,4)
  add    $0x1,%edx
  add    $0x1,%rdi
  cmp    %ecx,%ebp
  jle    L12
  cmp    %edx,%ebx
  jle    L189
  movslq %edx,%r10
  jmp    L60
  nopl   0x0(%rax,%rax,1)
L249:
  xor    %esi,%esi
  xor    %edx,%edx
  xor    %ecx,%ecx
  cs nopw 0x0(%rax,%rax,1)
L189:
  cmp    %ecx,%ebp
  jle    L12
  movslq %esi,%r11
  movslq %ecx,%r8
  mov    %ebp,%r10d
  lea    0x1(%r8),%rdi
  shl    $0x2,%r11
  sub    %ecx,%r10d
  lea    0x0(,%rdi,4),%r14
  lea    (%rax,%r11,1),%r9
  mov    %rdi,0x8(%rsp)
  lea    0x0(%r13,%r14,1),%r15
  mov    %r9,%rdi
  sub    %r15,%rdi
  cmp    $0x8,%rdi
  jbe    L188
  lea    -0x1(%r10),%r15d
  cmp    $0x2,%r15d
  jbe    L188
  mov    %r10d,%r8d
  lea    -0x4(%r13,%r14,1),%r11
  xor    %edi,%edi
  shr    $0x2,%r8d
  shl    $0x4,%r8
  nopw   0x0(%rax,%rax,1)
L84:
  movdqu (%r11,%rdi,1),%xmm0
  movups %xmm0,(%r9,%rdi,1)
  add    $0x10,%rdi
  cmp    %r8,%rdi
  jne    L84
  mov    %r10d,%edi
  and    $0xfffffffc,%edi
  add    %edi,%ecx
  lea    (%rsi,%rdi,1),%r8d
  cmp    %edi,%r10d
  je     L157
  movslq %ecx,%r11
  lea    0x1(%r8),%r9d
  lea    0x1(%rcx),%edi
  movslq %r8d,%r8
  mov    0x0(%r13,%r11,4),%r11d
  mov    %r11d,(%rax,%r8,4)
  cmp    %edi,%ebp
  jle    L157
  movslq %edi,%rdi
  movslq %r9d,%r8
  add    $0x2,%ecx
  lea    0x0(,%rdi,4),%r11
  mov    0x0(%r13,%rdi,4),%edi
  lea    0x0(,%r8,4),%r9
  mov    %edi,(%rax,%r8,4)
  cmp    %ecx,%ebp
  jle    L157
  mov    0x4(%r13,%r11,1),%ecx
  mov    %ecx,0x4(%rax,%r9,1)
L157:
  add    %r10d,%esi
L12:
  cmp    %edx,%ebx
  jle    L47
  movslq %esi,%r9
  movslq %edx,%rdi
  mov    %ebx,%r10d
  shl    $0x2,%r9
  lea    0x1(%rdi),%rcx
  sub    %edx,%r10d
  lea    (%rax,%r9,1),%r8
  lea    0x0(,%rcx,4),%r11
  lea    (%r12,%r11,1),%r13
  mov    %r8,%rbp
  sub    %r13,%rbp
  cmp    $0x8,%rbp
  jbe    L263
  lea    -0x1(%r10),%ebp
  cmp    $0x2,%ebp
  jbe    L263
  mov    %r10d,%edi
  lea    -0x4(%r12,%r11,1),%r9
  xor    %ecx,%ecx
  shr    $0x2,%edi
  shl    $0x4,%rdi
  nopl   0x0(%rax)
L271:
  movdqu (%r9,%rcx,1),%xmm1
  movups %xmm1,(%r8,%rcx,1)
  add    $0x10,%rcx
  cmp    %rcx,%rdi
  jne    L271
  mov    %r10d,%ecx
  and    $0xfffffffc,%ecx
  add    %ecx,%edx
  add    %ecx,%esi
  cmp    %ecx,%r10d
  je     L47
  movslq %edx,%r8
  lea    0x1(%rsi),%edi
  lea    0x1(%rdx),%ecx
  movslq %esi,%rsi
  mov    (%r12,%r8,4),%r8d
  mov    %r8d,(%rax,%rsi,4)
  cmp    %ecx,%ebx
  jle    L47
  movslq %ecx,%rcx
  movslq %edi,%rsi
  add    $0x2,%edx
  lea    0x0(,%rcx,4),%r8
  mov    (%r12,%rcx,4),%ecx
  lea    0x0(,%rsi,4),%rdi
  mov    %ecx,(%rax,%rsi,4)
  cmp    %ebx,%edx
  jge    L47
  mov    0x4(%r12,%r8,1),%edx
  mov    %edx,0x4(%rax,%rdi,1)
L47:
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nop
L188:
  mov    %r8,%rcx
  mov    0x8(%rsp),%rdi
  neg    %rcx
  lea    (%r11,%rcx,4),%r9
  add    %rax,%r9
  jmp    L86
  nopl   0x0(%rax)
L67:
  add    $0x1,%rdi
L86:
  mov    0x0(%r13,%r8,4),%ecx
  mov    %ecx,(%r9,%r8,4)
  mov    %rdi,%r8
  cmp    %edi,%ebp
  jg     L67
  add    %r10d,%esi
  jmp    L12
  nopl   0x0(%rax)
L263:
  mov    %rdi,%rdx
  neg    %rdx
  lea    (%r9,%rdx,4),%rsi
  add    %rax,%rsi
  jmp    L48
  nopw   0x0(%rax,%rax,1)
L100:
  add    $0x1,%rcx
L48:
  mov    (%r12,%rdi,4),%edx
  mov    %edx,(%rsi,%rdi,4)
  mov    %rcx,%rdi
  cmp    %ecx,%ebx
  jg     L100
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int *merge(int *nums1, int len1, int *nums2, int len2) {
  int *res;
  int i, j;
  int p;
  i = 0;
  j = 0;
  p = 0;
  res = malloc(4 * (len1 + len2));
  while (i < len1 && j < len2) {
    if (nums1[i] <= nums2[j])
      res[p++] = nums1[i++];
    else
      res[p++] = nums2[j++];
  }
  while (i < len1)
    res[p++] = nums1[i++];
  while (j < len2)
    res[p++] = nums2[j++];
  return res;
}
```