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

```asm
<merge>:
  endbr64
  push   %r15
  mov    %rdx,%r10
  mov    %rsi,%r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  test   %ecx,%ecx
  jle    L158
  test   %r9d,%r9d
  jle    L158
  mov    $0x1,%r11d
  xor    %eax,%eax
  xor    %edx,%edx
  xor    %r13d,%r13d
  xor    %r12d,%r12d
  nopl   (%rax)
L156:
  mov    (%r10,%r13,4),%ebp
  mov    (%r8,%r12,4),%ebx
  mov    %r11d,%esi
  cmp    %ebp,%ebx
  jl     L114
L133:
  mov    %ebp,-0x4(%rdi,%r11,4)
  add    $0x1,%edx
  add    $0x1,%r11
  cmp    %eax,%r9d
  jle    L9
  cmp    %edx,%ecx
  jle    L245
  movslq %edx,%r13
  mov    (%r8,%r12,4),%ebx
  mov    %r11d,%esi
  mov    (%r10,%r13,4),%ebp
  cmp    %ebp,%ebx
  jge    L133
L114:
  mov    %ebx,-0x4(%rdi,%r11,4)
  add    $0x1,%eax
  add    $0x1,%r11
  cmp    %edx,%ecx
  jle    L245
  cmp    %eax,%r9d
  jle    L9
  movslq %eax,%r12
  jmp    L156
  nopl   0x0(%rax,%rax,1)
L158:
  xor    %esi,%esi
  xor    %eax,%eax
  xor    %edx,%edx
  cs nopw 0x0(%rax,%rax,1)
L9:
  cmp    %edx,%ecx
  jle    L245
  movslq %esi,%r11
  mov    %ecx,%r12d
  lea    0x0(,%r11,4),%rbx
  sub    %edx,%r12d
  lea    (%rdi,%rbx,1),%rbp
  mov    %rbx,-0x18(%rsp)
  movslq %edx,%rbx
  lea    0x1(%rbx),%r14
  mov    %rbp,%r11
  lea    0x0(,%r14,4),%r13
  mov    %r14,-0x10(%rsp)
  lea    (%r10,%r13,1),%r14
  sub    %r14,%r11
  cmp    $0x8,%r11
  jbe    L65
  lea    -0x1(%r12),%r14d
  cmp    $0x2,%r14d
  jbe    L65
  mov    %r12d,%ebx
  lea    -0x4(%r10,%r13,1),%r13
  xor    %r11d,%r11d
  shr    $0x2,%ebx
  shl    $0x4,%rbx
  nopl   0x0(%rax,%rax,1)
L197:
  movdqu 0x0(%r13,%r11,1),%xmm0
  movups %xmm0,0x0(%rbp,%r11,1)
  add    $0x10,%r11
  cmp    %rbx,%r11
  jne    L197
  mov    %r12d,%r11d
  and    $0xfffffffc,%r11d
  add    %r11d,%edx
  lea    (%rsi,%r11,1),%ebx
  cmp    %r11d,%r12d
  je     L238
  movslq %edx,%r13
  lea    0x1(%rbx),%ebp
  lea    0x1(%rdx),%r11d
  movslq %ebx,%rbx
  mov    (%r10,%r13,4),%r13d
  mov    %r13d,(%rdi,%rbx,4)
  cmp    %r11d,%ecx
  jle    L238
  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,(%rdi,%rbx,4)
  cmp    %edx,%ecx
  jle    L238
  mov    0x4(%r10,%r13,1),%edx
  mov    %edx,0x4(%rdi,%rbp,1)
L238:
  add    %r12d,%esi
L245:
  cmp    %eax,%r9d
  jle    L273
  movslq %esi,%rbx
  movslq %eax,%rcx
  mov    %r9d,%r11d
  shl    $0x2,%rbx
  lea    0x1(%rcx),%rdx
  sub    %eax,%r11d
  lea    (%rdi,%rbx,1),%r10
  lea    0x0(,%rdx,4),%rbp
  lea    (%r8,%rbp,1),%r13
  mov    %r10,%r12
  sub    %r13,%r12
  cmp    $0x8,%r12
  jbe    L7
  lea    -0x1(%r11),%r12d
  cmp    $0x2,%r12d
  jbe    L7
  mov    %r11d,%ecx
  lea    -0x4(%r8,%rbp,1),%rbx
  xor    %edx,%edx
  shr    $0x2,%ecx
  shl    $0x4,%rcx
L77:
  movdqu (%rbx,%rdx,1),%xmm1
  movups %xmm1,(%r10,%rdx,1)
  add    $0x10,%rdx
  cmp    %rdx,%rcx
  jne    L77
  mov    %r11d,%edx
  and    $0xfffffffc,%edx
  add    %edx,%eax
  lea    (%rsi,%rdx,1),%ecx
  cmp    %edx,%r11d
  je     L59
  movslq %eax,%rbx
  lea    0x1(%rcx),%r10d
  lea    0x1(%rax),%edx
  movslq %ecx,%rcx
  mov    (%r8,%rbx,4),%ebx
  mov    %ebx,(%rdi,%rcx,4)
  cmp    %edx,%r9d
  jle    L59
  movslq %edx,%rdx
  movslq %r10d,%rcx
  add    $0x2,%eax
  lea    0x0(,%rdx,4),%rbx
  mov    (%r8,%rdx,4),%edx
  lea    0x0(,%rcx,4),%r10
  mov    %edx,(%rdi,%rcx,4)
  cmp    %r9d,%eax
  jge    L59
  mov    0x4(%r8,%rbx,1),%eax
  mov    %eax,0x4(%rdi,%r10,1)
L59:
  add    %r11d,%esi
L273:
  pop    %rbx
  pop    %rbp
  mov    %esi,(%r15)
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L65:
  mov    -0x18(%rsp),%r14
  mov    %rbx,%rdx
  mov    -0x10(%rsp),%r11
  neg    %rdx
  lea    (%r14,%rdx,4),%rbp
  add    %rdi,%rbp
  jmp    L253
  nopl   0x0(%rax)
L159:
  add    $0x1,%r11
L253:
  mov    (%r10,%rbx,4),%edx
  mov    %edx,0x0(%rbp,%rbx,4)
  mov    %r11,%rbx
  cmp    %r11d,%ecx
  jg     L159
  add    %r12d,%esi
  jmp    L245
  nopl   0x0(%rax)
L7:
  mov    %rcx,%rax
  neg    %rax
  lea    (%rbx,%rax,4),%rax
  add    %rax,%rdi
  jmp    L75
  nop
L44:
  add    $0x1,%rdx
L75:
  mov    (%r8,%rcx,4),%eax
  mov    %eax,(%rdi,%rcx,4)
  mov    %rdx,%rcx
  cmp    %edx,%r9d
  jg     L44
  jmp    L59
```

assistant: ```c
void merge(int c[], int *nc, int a[], int na, int b[], int nb) {
  int cursora, cursorb, cursorc;
  cursora = cursorb = cursorc = 0;
  while ((cursora < na) && (cursorb < nb))
    if (a[cursora] <= b[cursorb])
      c[cursorc++] = a[cursora++];
    else
      c[cursorc++] = b[cursorb++];
  while (cursora < na)
    c[cursorc++] = a[cursora++];
  while (cursorb < nb)
    c[cursorc++] = b[cursorb++];
  *nc = cursorc;
}
```