user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<dwt_decode_1>:
  endbr64
  lea    -0x1(%rsi),%eax
  push   %r15
  push   %r14
  mov    %esi,%r14d
  push   %r13
  mov    %edx,%r13d
  push   %r12
  mov    %esi,%r12d
  push   %rbp
  mov    %eax,%ebp
  shr    $0x1f,%r12d
  push   %rbx
  shr    $0x1f,%ebp
  add    %esi,%r12d
  mov    %rdi,%rbx
  add    %eax,%ebp
  xor    %eax,%eax
  sar    %r12d
  sar    %ebp
  sub    $0x18,%rsp
  lea    0x1(%rbp),%r15d
  call   <dwt_interleave@plt>
  test   %r15d,%r15d
  jle    L351
  lea    -0x1(%r12,%r12,1),%eax
  movslq %r13d,%rsi
  imul   %r13d,%eax
  mov    %rsi,(%rsp)
  lea    (%rbx,%rsi,4),%rcx
  cltq
  lea    (%rbx,%rax,4),%rax
  cmp    $0x1,%r14d
  jg     L51
  xor    %edi,%edi
  cmp    $0x1,%r13d
  jne    L252
L502:
  movslq %edi,%rdx
  lea    -0x1(%rdi,%rdi,1),%r8d
  jmp    L196
  xchg   %ax,%ax
L297:
  cmp    %edx,%r12d
  jge    L260
  mov    (%rax),%edi
  mov    %edi,%r9d
L455:
  lea    0x2(%r9,%rdi,1),%edi
  add    $0x2,%r8d
  sar    $0x2,%edi
  sub    %edi,%esi
  mov    %esi,(%rbx,%rdx,8)
  add    $0x1,%rdx
  lea    -0x1(%rdx),%esi
  cmp    %esi,%ebp
  jle    L312
L196:
  mov    (%rbx,%rdx,8),%esi
  test   %edx,%edx
  jne    L297
  mov    (%rcx),%r9d
  mov    (%rax),%edi
  jmp    L455
  nopl   0x0(%rax,%rax,1)
L260:
  movslq %r8d,%rdi
  mov    (%rbx,%rdi,4),%r9d
  mov    (%rax),%edi
  jmp    L455
  nopl   0x0(%rax,%rax,1)
L51:
  cmp    %r15d,%r12d
  mov    %r15d,%esi
  cmovle %r12d,%esi
  cmp    $0x1,%r13d
  jne    L69
  mov    %rbx,%rdx
  mov    $0x1,%r9d
  xor    %r8d,%r8d
  jmp    L338
  nopw   0x0(%rax,%rax,1)
L114:
  cmp    %r8d,%r12d
  jl     L26
  mov    -0x4(%rdx),%r11d
L239:
  mov    %r9d,%r10d
  mov    (%rbx,%r10,4),%r10d
L530:
  lea    0x2(%r11,%r10,1),%r10d
  add    $0x8,%rdx
  add    $0x2,%r9d
  sar    $0x2,%r10d
  sub    %r10d,%edi
  mov    %edi,-0x8(%rdx)
  lea    0x1(%r8),%edi
  cmp    %edi,%esi
  jle    L3
  mov    %edi,%r8d
L338:
  mov    (%rdx),%edi
  test   %r8d,%r8d
  jne    L114
  mov    (%rcx),%r11d
  jmp    L239
  nopw   0x0(%rax,%rax,1)
L26:
  mov    (%rax),%r10d
  mov    %r10d,%r11d
  jmp    L530
  nopl   0x0(%rax,%rax,1)
L274:
  mov    0x8(%rsp),%r15d
  nopl   (%rax)
L312:
  cmp    $0x1,%r14d
  jle    L193
  lea    0x0(%r13,%r13,1),%ecx
  mov    %ebp,%eax
  mov    %r15d,%esi
  imul   %ecx,%eax
  cmp    %r15d,%r12d
  cmovle %r12d,%esi
  cltq
  lea    (%rbx,%rax,4),%rdx
  cmp    $0x1,%r13d
  jne    L411
L465:
  xor    %ecx,%ecx
  xor    %edi,%edi
  jmp    L131
  nopl   0x0(%rax,%rax,1)
L518:
  lea    (%rdi,%rdi,1),%r9d
  add    (%rbx,%r9,4),%eax
L500:
  sar    %eax
  add    %r8d,%eax
  mov    %eax,0x4(%rbx,%rcx,8)
  add    $0x1,%rcx
  cmp    %esi,%edi
  jge    L269
L131:
  mov    0x4(%rbx,%rcx,8),%r8d
  mov    (%rbx,%rcx,8),%eax
  add    $0x1,%edi
  cmp    %ecx,%ebp
  jg     L518
  add    (%rdx),%eax
  jmp    L500
  nopl   0x0(%rax)
L193:
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nop
L3:
  cmp    %r8d,%ebp
  jg     L502
  cmp    $0x1,%r14d
  jle    L193
  lea    0x0(%rbp,%rbp,1),%eax
  cmp    %r15d,%r12d
  mov    %r15d,%esi
  cltq
  cmovle %r12d,%esi
  lea    (%rbx,%rax,4),%rdx
  jmp    L465
  nopl   (%rax)
L269:
  cmp    %edi,%r12d
  jle    L193
L538:
  movslq %edi,%rcx
  lea    0x2(%rdi,%rdi,1),%esi
  jmp    L441
  cs nopw 0x0(%rax,%rax,1)
L75:
  movslq %esi,%r8
  add    (%rbx,%r8,4),%eax
L516:
  sar    %eax
  add    $0x2,%esi
  add    %edi,%eax
  mov    %eax,0x4(%rbx,%rcx,8)
  add    $0x1,%rcx
  cmp    %ecx,%r12d
  jle    L193
L441:
  mov    0x4(%rbx,%rcx,8),%edi
  mov    (%rdx),%eax
  cmp    %ecx,%ebp
  jg     L75
  add    %eax,%eax
  jmp    L516
L39:
  cmp    $0x1,%r14d
  jle    L193
  lea    0x0(%r13,%r13,1),%ecx
  mov    %ebp,%eax
  mov    %r15d,%esi
  imul   %ecx,%eax
  cmp    %r15d,%r12d
  cmovle %r12d,%esi
  cltq
  lea    (%rbx,%rax,4),%rdx
  nopl   0x0(%rax)
L411:
  mov    (%rsp),%r11
  lea    0x0(%r13,%r13,1),%r9d
  mov    %ecx,%r8d
  xor    %r15d,%r15d
  movslq %r9d,%r9
  shl    $0x2,%r11
  shl    $0x2,%r9
  lea    (%rbx,%r11,1),%rdi
  neg    %r11
  jmp    L458
  nopl   0x0(%rax,%rax,1)
L577:
  add    (%rdx),%eax
L476:
  sar    %eax
  add    %ecx,%r8d
  add    %r14d,%eax
  mov    %eax,(%rdi)
  add    %r9,%rdi
  cmp    %esi,%r10d
  jge    L372
  mov    %r10d,%r15d
L458:
  mov    (%rdi),%r14d
  mov    (%rdi,%r11,1),%eax
  lea    0x1(%r15),%r10d
  cmp    %r15d,%ebp
  jle    L577
  movslq %r8d,%r15
  add    (%rbx,%r15,4),%eax
  jmp    L476
  nopl   0x0(%rax,%rax,1)
L372:
  cmp    %r12d,%r10d
  jge    L193
L478:
  lea    0x1(%r10,%r10,1),%eax
  lea    0x0(%r13,%r13,1),%r8d
  movslq %r10d,%rdi
  imul   %r13d,%eax
  movslq %r8d,%r8
  lea    0x1(%r10),%esi
  imul   %ecx,%esi
  shl    $0x2,%r8
  cltq
  lea    (%rbx,%rax,4),%r9
  jmp    L45
L192:
  add    %eax,%eax
L11:
  sar    %eax
  add    $0x1,%rdi
  add    %ecx,%esi
  add    %r10d,%eax
  mov    %eax,(%r9)
  add    %r8,%r9
  cmp    %edi,%r12d
  jle    L193
L45:
  mov    (%r9),%r10d
  mov    (%rdx),%eax
  cmp    %edi,%ebp
  jle    L192
  movslq %esi,%r11
  add    (%rbx,%r11,4),%eax
  jmp    L11
  xchg   %ax,%ax
L69:
  lea    0x0(%r13,%r13,1),%r11d
  mov    %r15d,0x8(%rsp)
  mov    %rbx,%rdi
  mov    %r13d,%r9d
  movslq %r11d,%rdx
  mov    %r14d,0xc(%rsp)
  xor    %r8d,%r8d
  mov    %r11d,%r14d
  shl    $0x2,%rdx
  mov    %rdx,%r15
  jmp    L418
  nopw   0x0(%rax,%rax,1)
L537:
  cmp    %r8d,%r12d
  jl     L22
  mov    %r9d,%r10d
  sub    %r14d,%r10d
  movslq %r10d,%r10
  mov    (%rbx,%r10,4),%r11d
L289:
  movslq %r9d,%r10
  mov    (%rbx,%r10,4),%r10d
L324:
  lea    0x2(%r11,%r10,1),%r10d
  add    %r14d,%r9d
  sar    $0x2,%r10d
  sub    %r10d,%edx
  mov    %edx,(%rdi)
  lea    0x1(%r8),%edx
  add    %r15,%rdi
  cmp    %esi,%edx
  jge    L567
  mov    %edx,%r8d
L418:
  mov    (%rdi),%edx
  test   %r8d,%r8d
  jne    L537
  mov    (%rcx),%r11d
  jmp    L289
  nopl   0x0(%rax)
L22:
  mov    (%rax),%r10d
  mov    %r10d,%r11d
  jmp    L324
L567:
  mov    0x8(%rsp),%r15d
  mov    0xc(%rsp),%r14d
  cmp    %r8d,%ebp
  jle    L39
L433:
  mov    %r13d,%esi
  lea    0x0(%r13,%r13,1),%edi
  lea    -0x1(%rdx,%rdx,1),%r8d
  mov    %r15d,0x8(%rsp)
  imul   %edx,%esi
  movslq %edi,%r11
  mov    %edi,%r15d
  imul   %r13d,%r8d
  shl    $0x2,%r11
  add    %esi,%esi
  movslq %esi,%rsi
  lea    (%rbx,%rsi,4),%rsi
  jmp    L246
  nopl   0x0(%rax)
L273:
  cmp    %edx,%r12d
  jge    L18
  mov    (%rax),%r9d
  mov    %r9d,%r10d
L564:
  lea    0x2(%r10,%r9,1),%r9d
  add    %r15d,%r8d
  sar    $0x2,%r9d
  sub    %r9d,%edi
  mov    %edi,(%rsi)
  lea    0x1(%rdx),%edi
  add    %r11,%rsi
  cmp    %edx,%ebp
  jle    L274
  mov    %edi,%edx
L246:
  mov    (%rsi),%edi
  test   %edx,%edx
  jne    L273
  mov    (%rcx),%r10d
  mov    (%rax),%r9d
  jmp    L564
  nopw   0x0(%rax,%rax,1)
L18:
  movslq %r8d,%r9
  mov    (%rbx,%r9,4),%r10d
  mov    (%rax),%r9d
  jmp    L564
  nopl   0x0(%rax)
L351:
  cmp    $0x1,%r14d
  jle    L193
  lea    0x0(%r13,%r13,1),%ecx
  mov    %ebp,%eax
  imul   %ecx,%eax
  cltq
  lea    (%rbx,%rax,4),%rdx
  cmp    $0x1,%r13d
  jne    L167
  xor    %edi,%edi
  jmp    L538
L252:
  xor    %edx,%edx
  jmp    L433
L167:
  xor    %r10d,%r10d
  jmp    L478
```

assistant: ```c
void dwt_decode_1(int *a, int n, int x) {
  int dn, sn, i;
  dn = n / 2;
  sn = 1 + (n - 1) / 2;
  dwt_interleave(a, n, x);
  for (i = 0; i < sn; i++)
    a[x * (i)*2] -= (((i - 1) < 0 ? a[x * (1 + (0) * 2)] : ((i - 1) >= dn ? a[x * (1 + (dn - 1) * 2)] : a[x * (1 + (i - 1) * 2)])) + ((i) < 0 ? a[x * (1 + (0) * 2)] : ((i) >= dn ? a[x * (1 + (dn - 1) * 2)] : a[x * (1 + (i)*2)])) + 2) >> 2;
  for (i = 0; i < dn; i++)
    a[x * (1 + (i)*2)] += (((i) < 0 ? a[x * (0) * 2] : ((i) >= sn ? a[x * (sn - 1) * 2] : a[x * (i)*2])) + ((i + 1) < 0 ? a[x * (0) * 2] : ((i + 1) >= sn ? a[x * (sn - 1) * 2] : a[x * (i + 1) * 2]))) >> 1;
}
```