user: 这段汇编代码用C语言表示是什么样的:

```asm
<dwt_encode_1>:
  endbr64
  push   %rbp
  mov    %rdi,%rax
  mov    %esi,%edi
  mov    %edx,%esi
  push   %rbx
  test   %ecx,%ecx
  jne    L155
  test   %edi,%edi
  jg     L289
  cmp    $0x1,%edx
  jle    L534
  test   %edi,%edi
  jle    L113
L289:
  lea    -0x2(%rsi,%rsi,1),%edx
  movslq %edx,%rdx
  lea    (%rax,%rdx,4),%r9
  test   %esi,%esi
  jle    L237
  cmp    %edi,%esi
  mov    %edi,%ebx
  lea    0x4(%rax),%r10
  cmovle %esi,%ebx
  xor    %edx,%edx
  jmp    L497
  nopl   0x0(%rax)
L26:
  add    (%r9),%r8d
L413:
  sar    %r8d
  add    $0x8,%r10
  sub    %r8d,%r11d
  mov    %r11d,-0x8(%r10)
  cmp    %ebx,%edx
  jge    L495
L497:
  add    $0x1,%edx
  mov    (%r10),%r11d
  mov    -0x4(%r10),%r8d
  cmp    %esi,%edx
  jge    L26
  lea    (%rdx,%rdx,1),%ebp
  movslq %ebp,%rbp
  add    (%rax,%rbp,4),%r8d
  jmp    L413
  nopl   0x0(%rax,%rax,1)
L155:
  test   %edx,%edx
  jne    L469
  cmp    $0x1,%edi
  jne    L469
  shll   (%rax)
L534:
  pop    %rbx
  pop    %rbp
  ret
  xchg   %ax,%ax
L469:
  test   %edi,%edi
  jle    L152
  lea    -0x1(%rsi,%rsi,1),%edx
  movslq %edx,%rdx
  lea    (%rax,%rdx,4),%r9
  test   %esi,%esi
  jle    L260
  cmp    %edi,%esi
  mov    %edi,%ebx
  mov    %rax,%rcx
  cmovle %esi,%ebx
  xor    %r8d,%r8d
  jmp    L219
  nopw   0x0(%rax,%rax,1)
L144:
  cmp    %r8d,%esi
  jge    L431
  mov    (%r9),%edx
L377:
  add    %r11d,%edx
  add    $0x1,%r8d
  add    $0x8,%rcx
  sar    %edx
  sub    %edx,%r10d
  mov    %r10d,-0x8(%rcx)
  cmp    %ebx,%r8d
  jge    L446
L219:
  mov    (%rcx),%r10d
  mov    0x4(%rcx),%r11d
  test   %r8d,%r8d
  jne    L144
  mov    0x4(%rax),%edx
  jmp    L377
  cs nopw 0x0(%rax,%rax,1)
L431:
  mov    -0x4(%rcx),%edx
  jmp    L377
  nopl   (%rax)
L237:
  xor    %edx,%edx
L501:
  add    $0x1,%edx
  movslq %edx,%rdx
L171:
  mov    -0x4(%rax,%rdx,8),%r10d
  mov    (%r9),%r8d
  cmp    %edx,%esi
  jg     L186
  add    %r8d,%r8d
  sar    %r8d
  sub    %r8d,%r10d
  mov    %r10d,-0x4(%rax,%rdx,8)
  add    $0x1,%rdx
  lea    -0x1(%rdx),%r8d
  cmp    %edi,%r8d
  jl     L171
  test   %esi,%esi
  jle    L534
L549:
  lea    -0x1(%rdi,%rdi,1),%edx
  cmp    %edi,%esi
  mov    %edi,%r11d
  mov    %rax,%r8
  movslq %edx,%rdx
  cmovle %esi,%r11d
  lea    (%rax,%rdx,4),%r9
  jmp    L568
  nopl   0x0(%rax)
L306:
  cmp    %ecx,%edi
  jge    L505
  mov    (%r9),%edx
L584:
  add    0x4(%r8),%edx
  add    $0x1,%ecx
  add    $0x8,%r8
  add    $0x2,%edx
  sar    $0x2,%edx
  add    %r10d,%edx
  mov    %edx,-0x8(%r8)
  cmp    %r11d,%ecx
  jge    L57
L568:
  mov    (%r8),%r10d
  test   %ecx,%ecx
  jne    L306
  mov    0x4(%rax),%edx
  jmp    L584
  nopl   0x0(%rax,%rax,1)
L186:
  lea    (%rdx,%rdx,1),%r11d
  movslq %r11d,%r11
  add    (%rax,%r11,4),%r8d
  sar    %r8d
  sub    %r8d,%r10d
  mov    %r10d,-0x4(%rax,%rdx,8)
  add    $0x1,%rdx
  lea    -0x1(%rdx),%r8d
  cmp    %r8d,%edi
  jg     L171
  test   %esi,%esi
  jg     L549
  jmp    L534
  nopl   0x0(%rax)
L446:
  cmp    %r8d,%edi
  jle    L107
L25:
  movslq %r8d,%rdx
  lea    -0x1(%r8,%r8,1),%r10d
  jmp    L20
  nopw   0x0(%rax,%rax,1)
L386:
  mov    %ecx,%r11d
  cmp    %edx,%esi
  jl     L528
  movslq %r10d,%r11
  mov    (%rax,%r11,4),%r11d
L528:
  add    %r11d,%ecx
  add    $0x2,%r10d
  sar    %ecx
  sub    %ecx,%r8d
  mov    %r8d,(%rax,%rdx,8)
  add    $0x1,%rdx
  cmp    %edx,%edi
  jle    L320
L20:
  mov    (%rax,%rdx,8),%r8d
  mov    (%r9),%ecx
  test   %edx,%edx
  jne    L386
  mov    0x4(%rax),%r11d
  jmp    L528
  nopw   0x0(%rax,%rax,1)
L320:
  test   %esi,%esi
  jle    L534
L107:
  lea    -0x2(%rdi,%rdi,1),%edx
  cmp    %edi,%esi
  lea    0x4(%rax),%r8
  mov    %edi,%r10d
  movslq %edx,%rdx
  cmovle %esi,%r10d
  lea    (%rax,%rdx,4),%r9
  xor    %edx,%edx
  jmp    L103
  nopl   0x0(%rax)
L558:
  add    (%r9),%ecx
L136:
  add    $0x2,%ecx
  add    $0x8,%r8
  sar    $0x2,%ecx
  add    %r11d,%ecx
  mov    %ecx,-0x8(%r8)
  cmp    %r10d,%edx
  jge    L10
L103:
  add    $0x1,%edx
  mov    (%r8),%r11d
  mov    -0x4(%r8),%ecx
  cmp    %edi,%edx
  jge    L558
  lea    (%rdx,%rdx,1),%ebx
  movslq %ebx,%rbx
  add    (%rax,%rbx,4),%ecx
  jmp    L136
  nopw   0x0(%rax,%rax,1)
L10:
  cmp    %esi,%edx
  jge    L534
L128:
  add    $0x1,%edx
  movslq %edx,%rdx
  xchg   %ax,%ax
L87:
  mov    -0x4(%rax,%rdx,8),%r8d
  mov    (%r9),%ecx
  cmp    %edx,%edi
  jg     L228
L227:
  lea    0x2(%rcx,%rcx,1),%ecx
  sar    $0x2,%ecx
  add    %r8d,%ecx
  mov    %ecx,-0x4(%rax,%rdx,8)
  add    $0x1,%rdx
  lea    -0x1(%rdx),%ecx
  cmp    %ecx,%esi
  jle    L534
  mov    -0x4(%rax,%rdx,8),%r8d
  mov    (%r9),%ecx
  cmp    %edx,%edi
  jle    L227
L228:
  lea    (%rdx,%rdx,1),%r10d
  movslq %r10d,%r10
  add    (%rax,%r10,4),%ecx
  add    $0x2,%ecx
  sar    $0x2,%ecx
  add    %r8d,%ecx
  mov    %ecx,-0x4(%rax,%rdx,8)
  add    $0x1,%rdx
  lea    -0x1(%rdx),%ecx
  cmp    %esi,%ecx
  jl     L87
  pop    %rbx
  pop    %rbp
  ret
  nopl   0x0(%rax,%rax,1)
L260:
  xor    %r8d,%r8d
  jmp    L25
  nopl   0x0(%rax,%rax,1)
L495:
  cmp    %edi,%edx
  jl     L501
  jmp    L549
  nopl   (%rax)
L505:
  mov    -0x4(%r8),%edx
  jmp    L584
  nopl   0x0(%rax)
L57:
  cmp    %ecx,%esi
  jle    L534
L94:
  movslq %ecx,%rdx
  lea    -0x1(%rcx,%rcx,1),%r8d
  jmp    L383
  nopw   0x0(%rax,%rax,1)
L566:
  cmp    %edx,%edi
  jge    L142
  mov    (%r9),%ecx
  mov    %ecx,%r11d
L27:
  lea    0x2(%r11,%rcx,1),%ecx
  add    $0x2,%r8d
  sar    $0x2,%ecx
  add    %r10d,%ecx
  mov    %ecx,(%rax,%rdx,8)
  add    $0x1,%rdx
  cmp    %edx,%esi
  jle    L534
L383:
  mov    (%rax,%rdx,8),%r10d
  test   %edx,%edx
  jne    L566
  mov    0x4(%rax),%r11d
  mov    (%r9),%ecx
  jmp    L27
  nopl   0x0(%rax)
L142:
  movslq %r8d,%rcx
  mov    (%rax,%rcx,4),%r11d
  mov    (%r9),%ecx
  jmp    L27
  nopl   0x0(%rax)
L113:
  test   %edx,%edx
  jle    L534
  lea    -0x1(%rdi,%rdi,1),%edx
  movslq %edx,%rdx
  lea    (%rax,%rdx,4),%r9
  jmp    L94
  nopl   (%rax)
L152:
  test   %esi,%esi
  jle    L534
  lea    -0x2(%rdi,%rdi,1),%edx
  movslq %edx,%rdx
  lea    (%rax,%rdx,4),%r9
  xor    %edx,%edx
  jmp    L128
```

assistant: ```c
void dwt_encode_1(int *a, int dn, int sn, int cas) {
  int i;
  if (!cas) {
    if ((dn > 0) || (sn > 1)) {
      for (i = 0; i < dn; i++)
        a[(1 + (i)*2)] -= (((i) < 0 ? a[(0) * 2] : ((i) >= sn ? a[(sn - 1) * 2] : a[(i)*2])) + ((i + 1) < 0 ? a[(0) * 2] : ((i + 1) >= sn ? a[(sn - 1) * 2] : a[(i + 1) * 2]))) >> 1;
      for (i = 0; i < sn; i++)
        a[(i)*2] += (((i - 1) < 0 ? a[(1 + (0) * 2)] : ((i - 1) >= dn ? a[(1 + (dn - 1) * 2)] : a[(1 + (i - 1) * 2)])) + ((i) < 0 ? a[(1 + (0) * 2)] : ((i) >= dn ? a[(1 + (dn - 1) * 2)] : a[(1 + (i)*2)])) + 2) >> 2;
    }
  } else {
    if (!sn && dn == 1)
      a[(0) * 2] *= 2;
    else {
      for (i = 0; i < dn; i++)
        a[(i)*2] -= (((i) < 0 ? a[(1 + (0) * 2)] : ((i) >= sn ? a[(1 + (sn - 1) * 2)] : a[(1 + (i)*2)])) + ((i - 1) < 0 ? a[(1 + (0) * 2)] : ((i - 1) >= sn ? a[(1 + (sn - 1) * 2)] : a[(1 + (i - 1) * 2)]))) >> 1;
      for (i = 0; i < sn; i++)
        a[(1 + (i)*2)] += (((i) < 0 ? a[(0) * 2] : ((i) >= dn ? a[(dn - 1) * 2] : a[(i)*2])) + ((i + 1) < 0 ? a[(0) * 2] : ((i + 1) >= dn ? a[(dn - 1) * 2] : a[(i + 1) * 2])) + 2) >> 2;
    }
  }
}
```