user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<magic_index>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x48,%rsp
  cmp    %esi,%edx
  jl     L440
  lea    (%rdx,%rsi,1),%eax
  mov    %edx,%r13d
  mov    %eax,%ebx
  shr    $0x1f,%ebx
  add    %eax,%ebx
  sar    %ebx
  movslq %ebx,%rax
  mov    %ebx,%r14d
  mov    (%rdi,%rax,4),%ecx
  cmp    %ebx,%ecx
  je     L476
  lea    -0x1(%rbx),%r14d
  cmp    %ecx,%r14d
  cmovg  %ecx,%r14d
  cmp    %r14d,%esi
  jg     L860
  lea    (%rsi,%r14,1),%eax
  mov    %eax,%ebp
  shr    $0x1f,%ebp
  add    %eax,%ebp
  sar    %ebp
  movslq %ebp,%rax
  mov    (%rdi,%rax,4),%r12d
  cmp    %r12d,%ebp
  je     L293
  lea    -0x1(%rbp),%r9d
  cmp    %r12d,%r9d
  cmovg  %r12d,%r9d
  cmp    %r9d,%esi
  jg     L421
  lea    (%rsi,%r9,1),%edx
  mov    %edx,%eax
  shr    $0x1f,%eax
  add    %edx,%eax
  sar    %eax
  mov    %eax,%r15d
  cltq
  mov    (%rdi,%rax,4),%r8d
  cmp    %r8d,%r15d
  je     L127
  lea    -0x1(%r15),%eax
  cmp    %r8d,%eax
  cmovg  %r8d,%eax
  mov    %eax,(%rsp)
  cmp    %eax,%esi
  jg     L92
  lea    (%rsi,%rax,1),%edx
  mov    %edx,%eax
  shr    $0x1f,%eax
  add    %edx,%eax
  sar    %eax
  mov    %eax,%r11d
  cltq
  mov    (%rdi,%rax,4),%r10d
  cmp    %r10d,%r11d
  je     L458
  lea    -0x1(%r11),%eax
  cmp    %r10d,%eax
  cmovg  %r10d,%eax
  cmp    %eax,%esi
  jg     L118
  lea    (%rsi,%rax,1),%edx
  mov    %eax,0x10(%rsp)
  mov    %edx,%eax
  shr    $0x1f,%eax
  add    %edx,%eax
  sar    %eax
  mov    %eax,%edx
  cltq
  mov    (%rdi,%rax,4),%eax
  mov    %eax,0x8(%rsp)
  cmp    %eax,%edx
  je     L313
  mov    %edx,0x28(%rsp)
  lea    -0x1(%rdx),%edx
  cmp    %eax,%edx
  mov    %r11d,0x3c(%rsp)
  cmovg  %eax,%edx
  mov    %r10d,0x38(%rsp)
  mov    %r8d,0x34(%rsp)
  mov    %r9d,0x30(%rsp)
  mov    %ecx,0x2c(%rsp)
  mov    %rdi,0x20(%rsp)
  call   <magic_index>
  mov    0x28(%rsp),%edi
  mov    0x8(%rsp),%ecx
  mov    %eax,0x1c(%rsp)
  mov    0x10(%rsp),%edx
  lea    0x1(%rdi),%eax
  mov    %ecx,%esi
  mov    0x20(%rsp),%rdi
  cmp    %ecx,%eax
  cmovge %eax,%esi
  mov    %rdi,0x10(%rsp)
  call   <magic_index>
  mov    0x10(%rsp),%rdi
  mov    0x2c(%rsp),%ecx
  mov    %eax,%edx
  cmp    $0xffffffff,%eax
  mov    0x1c(%rsp),%eax
  mov    0x30(%rsp),%r9d
  mov    0x34(%rsp),%r8d
  mov    0x38(%rsp),%r10d
  cmovne %edx,%eax
  mov    0x3c(%rsp),%r11d
  mov    %eax,0x8(%rsp)
L313:
  add    $0x1,%r11d
  mov    %r10d,%esi
  mov    (%rsp),%eax
  cmp    %r10d,%r11d
  cmovge %r11d,%esi
  cmp    %esi,%eax
  jl     L423
  add    %esi,%eax
  mov    %eax,%r11d
  shr    $0x1f,%r11d
  add    %eax,%r11d
  sar    %r11d
  movslq %r11d,%rax
  mov    (%rdi,%rax,4),%r10d
  cmp    %r10d,%r11d
  je     L120
  lea    -0x1(%r11),%edx
  mov    %r8d,0x30(%rsp)
  cmp    %r10d,%edx
  mov    %r9d,0x2c(%rsp)
  cmovg  %r10d,%edx
  mov    %ecx,0x20(%rsp)
  mov    %r11d,0x28(%rsp)
  mov    %r10d,0x1c(%rsp)
  mov    %rdi,0x10(%rsp)
  call   <magic_index>
  mov    0x28(%rsp),%r11d
  mov    0x1c(%rsp),%r10d
  mov    0x10(%rsp),%rdi
  mov    (%rsp),%edx
  mov    %eax,0x34(%rsp)
  add    $0x1,%r11d
  mov    %r10d,%esi
  cmp    %r10d,%r11d
  mov    %rdi,(%rsp)
  cmovge %r11d,%esi
  call   <magic_index>
  mov    (%rsp),%rdi
  mov    0x20(%rsp),%ecx
  cmp    $0xffffffff,%eax
  mov    0x2c(%rsp),%r9d
  mov    0x30(%rsp),%r8d
  mov    %eax,%r10d
  je     L38
L458:
  lea    0x1(%r15),%esi
  cmp    %r8d,%esi
  cmovl  %r8d,%esi
  cmp    %esi,%r9d
  jl     L714
  lea    (%r9,%rsi,1),%eax
  mov    %r9d,(%rsp)
  mov    %eax,%r11d
  shr    $0x1f,%r11d
  add    %eax,%r11d
  sar    %r11d
  movslq %r11d,%rax
  mov    (%rdi,%rax,4),%r8d
  mov    %rax,%r15
  cmp    %r8d,%eax
  je     L292
  lea    -0x1(%rax),%edx
  mov    %r10d,0x28(%rsp)
  cmp    %r8d,%edx
  mov    %ecx,0x1c(%rsp)
  cmovg  %r8d,%edx
  mov    %r8d,0x10(%rsp)
  mov    %rdi,0x8(%rsp)
  call   <magic_index>
  mov    0x10(%rsp),%r8d
  lea    0x1(%r15),%r11d
  mov    (%rsp),%edx
  mov    0x8(%rsp),%rdi
  mov    %eax,0x20(%rsp)
  cmp    %r8d,%r11d
  mov    %r8d,%esi
  cmovge %r11d,%esi
  mov    %rdi,(%rsp)
  call   <magic_index>
  mov    (%rsp),%rdi
  mov    0x1c(%rsp),%ecx
  cmp    $0xffffffff,%eax
  mov    0x28(%rsp),%r10d
  mov    %eax,%r8d
  jne    L127
  mov    0x20(%rsp),%r8d
L292:
  cmp    $0xffffffff,%r8d
  cmove  %r10d,%r8d
L127:
  add    $0x1,%ebp
  mov    %r12d,%esi
  cmp    %r12d,%ebp
  cmovge %ebp,%esi
  cmp    %esi,%r14d
  jl     L309
  lea    (%r14,%rsi,1),%eax
  mov    %eax,%r15d
  shr    $0x1f,%r15d
  add    %eax,%r15d
  sar    %r15d
  movslq %r15d,%rax
  mov    (%rdi,%rax,4),%r12d
  cmp    %r12d,%r15d
  je     L495
  lea    -0x1(%r15),%r10d
  cmp    %r12d,%r10d
  cmovg  %r12d,%r10d
  add    $0x1,%r15d
  cmp    %r12d,%r15d
  cmovl  %r12d,%r15d
  cmp    %r10d,%esi
  jg     L247
  lea    (%rsi,%r10,1),%eax
  mov    %r10d,(%rsp)
  mov    %eax,%r12d
  shr    $0x1f,%r12d
  add    %eax,%r12d
  sar    %r12d
  movslq %r12d,%rax
  mov    (%rdi,%rax,4),%ebp
  cmp    %ebp,%r12d
  je     L358
  lea    -0x1(%r12),%edx
  mov    %r8d,0x1c(%rsp)
  cmp    %ebp,%edx
  mov    %ecx,0x10(%rsp)
  cmovg  %ebp,%edx
  add    $0x1,%r12d
  mov    %rdi,0x8(%rsp)
  call   <magic_index>
  cmp    %ebp,%r12d
  mov    %ebp,%esi
  mov    0x8(%rsp),%rdi
  cmovge %r12d,%esi
  mov    (%rsp),%edx
  mov    %eax,0x28(%rsp)
  mov    %rdi,(%rsp)
  call   <magic_index>
  mov    (%rsp),%rdi
  mov    0x10(%rsp),%ecx
  cmp    $0xffffffff,%eax
  mov    0x1c(%rsp),%r8d
  mov    %eax,%ebp
  je     L266
  cmp    %r15d,%r14d
  jl     L787
L296:
  lea    (%r14,%r15,1),%eax
  mov    %eax,%r10d
  shr    $0x1f,%r10d
  add    %eax,%r10d
  sar    %r10d
  movslq %r10d,%rax
  mov    (%rdi,%rax,4),%r12d
  cmp    %r12d,%r10d
  je     L645
  lea    -0x1(%r10),%edx
  mov    %r15d,%esi
  mov    %r8d,0x1c(%rsp)
  cmp    %r12d,%edx
  mov    %ecx,0x10(%rsp)
  cmovg  %r12d,%edx
  mov    %r10d,0x8(%rsp)
  mov    %rdi,(%rsp)
  call   <magic_index>
  mov    0x8(%rsp),%r10d
  mov    %r12d,%esi
  mov    %r14d,%edx
  mov    (%rsp),%rdi
  mov    %eax,%r15d
  add    $0x1,%r10d
  cmp    %r12d,%r10d
  cmovge %r10d,%esi
  call   <magic_index>
  mov    (%rsp),%rdi
  mov    0x10(%rsp),%ecx
  cmp    $0xffffffff,%eax
  mov    0x1c(%rsp),%r8d
  mov    %eax,%r12d
  jne    L293
  mov    %r15d,%r12d
L645:
  cmp    $0xffffffff,%r12d
  jne    L293
L206:
  mov    %ebp,%r12d
L495:
  cmp    $0xffffffff,%r12d
  cmove  %r8d,%r12d
L293:
  add    $0x1,%ebx
  cmp    %ecx,%ebx
  cmovge %ebx,%ecx
  mov    %ecx,%esi
  cmp    %ecx,%r13d
  jl     L452
  lea    0x0(%r13,%rcx,1),%eax
  mov    %eax,%r15d
  shr    $0x1f,%r15d
  add    %eax,%r15d
  sar    %r15d
  movslq %r15d,%rax
  mov    (%rdi,%rax,4),%r14d
  cmp    %r14d,%r15d
  je     L428
  lea    -0x1(%r15),%r8d
  cmp    %r14d,%r8d
  cmovg  %r14d,%r8d
  add    $0x1,%r15d
  cmp    %r14d,%r15d
  cmovl  %r14d,%r15d
  cmp    %r8d,%ecx
  jg     L144
  lea    (%rcx,%r8,1),%eax
  mov    %eax,%ebp
  shr    $0x1f,%ebp
  add    %eax,%ebp
  sar    %ebp
  movslq %ebp,%rax
  mov    (%rdi,%rax,4),%r14d
  cmp    %r14d,%ebp
  je     L845
  lea    -0x1(%rbp),%r10d
  cmp    %r14d,%r10d
  cmovg  %r14d,%r10d
  cmp    %r10d,%ecx
  jg     L355
  lea    (%rcx,%r10,1),%eax
  mov    %r10d,(%rsp)
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %eax,%ecx
  sar    %ecx
  movslq %ecx,%rax
  mov    (%rdi,%rax,4),%ebx
  cmp    %ebx,%ecx
  je     L337
  lea    -0x1(%rcx),%edx
  mov    %r8d,0x28(%rsp)
  cmp    %ebx,%edx
  mov    %ecx,0x1c(%rsp)
  cmovg  %ebx,%edx
  mov    %rdi,0x10(%rsp)
  call   <magic_index>
  mov    0x1c(%rsp),%ecx
  mov    0x10(%rsp),%rdi
  mov    (%rsp),%edx
  mov    %eax,0x8(%rsp)
  add    $0x1,%ecx
  mov    %rdi,(%rsp)
  cmp    %ebx,%ecx
  cmovge %ecx,%ebx
  mov    %ebx,%esi
  call   <magic_index>
  mov    (%rsp),%rdi
  mov    0x28(%rsp),%r8d
  mov    %eax,%ebx
  cmp    $0xffffffff,%eax
  cmove  0x8(%rsp),%ebx
L337:
  add    $0x1,%ebp
  mov    %r14d,%esi
  cmp    %r14d,%ebp
  cmovge %ebp,%esi
  cmp    %esi,%r8d
  jl     L382
  lea    (%r8,%rsi,1),%eax
  mov    %r8d,(%rsp)
  mov    %eax,%ebp
  shr    $0x1f,%ebp
  add    %eax,%ebp
  sar    %ebp
  movslq %ebp,%rax
  mov    (%rdi,%rax,4),%r14d
  cmp    %r14d,%ebp
  je     L93
  lea    -0x1(%rbp),%edx
  mov    %rdi,0x8(%rsp)
  cmp    %r14d,%edx
  cmovg  %r14d,%edx
  add    $0x1,%ebp
  call   <magic_index>
  cmp    %r14d,%ebp
  mov    %r14d,%esi
  mov    0x8(%rsp),%rdi
  cmovge %ebp,%esi
  mov    (%rsp),%edx
  mov    %eax,0x10(%rsp)
  mov    %rdi,(%rsp)
  call   <magic_index>
  mov    (%rsp),%rdi
  cmp    $0xffffffff,%eax
  mov    %eax,%r14d
  je     L549
L101:
  cmp    %r15d,%r13d
  jge    L366
L476:
  add    $0x48,%rsp
  mov    %r14d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L549:
  mov    0x10(%rsp),%r14d
L93:
  cmp    $0xffffffff,%r14d
  jne    L101
L382:
  mov    %ebx,%r14d
L845:
  cmp    %r15d,%r13d
  jl     L428
L366:
  lea    0x0(%r13,%r15,1),%eax
  mov    %eax,%ebp
  shr    $0x1f,%ebp
  add    %eax,%ebp
  sar    %ebp
  movslq %ebp,%rax
  mov    (%rdi,%rax,4),%ebx
  cmp    %ebx,%ebp
  je     L27
  lea    -0x1(%rbp),%r8d
  cmp    %ebx,%r8d
  cmovg  %ebx,%r8d
  add    $0x1,%ebp
  cmp    %ebx,%ebp
  cmovl  %ebx,%ebp
  cmp    %r15d,%r8d
  jl     L672
  lea    (%r8,%r15,1),%eax
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %eax,%ecx
  sar    %ecx
  movslq %ecx,%rax
  mov    (%rdi,%rax,4),%ebx
  cmp    %ebx,%ecx
  jne    L720
L312:
  cmp    %ebp,%r13d
  jge    L510
  nop
L27:
  cmp    $0xffffffff,%ebx
  jne    L117
L428:
  cmp    $0xffffffff,%r14d
  cmove  %r12d,%r14d
  jmp    L476
  cs nopw 0x0(%rax,%rax,1)
L720:
  lea    -0x1(%rcx),%r11d
  cmp    %ebx,%r11d
  cmovg  %ebx,%r11d
  cmp    %r15d,%r11d
  jl     L768
  lea    (%r11,%r15,1),%eax
  mov    %r11d,(%rsp)
  mov    %eax,%r9d
  shr    $0x1f,%r9d
  add    %eax,%r9d
  sar    %r9d
  movslq %r9d,%rax
  mov    (%rdi,%rax,4),%r10d
  cmp    %r10d,%r9d
  je     L678
  lea    -0x1(%r9),%edx
  mov    %r15d,%esi
  mov    %ecx,0x20(%rsp)
  cmp    %r10d,%edx
  mov    %r8d,0x28(%rsp)
  cmovg  %r10d,%edx
  mov    %r9d,0x1c(%rsp)
  mov    %r10d,0x10(%rsp)
  mov    %rdi,0x8(%rsp)
  call   <magic_index>
  mov    0x1c(%rsp),%r9d
  mov    0x10(%rsp),%r10d
  mov    0x8(%rsp),%rdi
  mov    (%rsp),%edx
  mov    %eax,%r15d
  add    $0x1,%r9d
  mov    %r10d,%esi
  cmp    %r10d,%r9d
  mov    %rdi,(%rsp)
  cmovge %r9d,%esi
  call   <magic_index>
  mov    (%rsp),%rdi
  mov    0x28(%rsp),%r8d
  mov    %eax,%r10d
  cmp    $0xffffffff,%eax
  mov    0x20(%rsp),%ecx
  cmove  %r15d,%r10d
L678:
  add    $0x1,%ecx
  cmp    %ebx,%ecx
  cmovge %ecx,%ebx
  mov    %ebx,%esi
  cmp    %ebx,%r8d
  jl     L872
  lea    (%r8,%rbx,1),%eax
  mov    %r8d,(%rsp)
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %eax,%ecx
  sar    %ecx
  movslq %ecx,%rax
  mov    (%rdi,%rax,4),%ebx
  mov    %rax,%r15
  cmp    %ebx,%eax
  je     L433
  lea    -0x1(%rax),%edx
  mov    %r10d,0x10(%rsp)
  cmp    %ebx,%edx
  mov    %rdi,0x8(%rsp)
  cmovg  %ebx,%edx
  call   <magic_index>
  lea    0x1(%r15),%ecx
  mov    0x8(%rsp),%rdi
  mov    (%rsp),%edx
  cmp    %ebx,%ecx
  mov    %eax,0x1c(%rsp)
  cmovge %ecx,%ebx
  mov    %rdi,(%rsp)
  mov    %ebx,%esi
  call   <magic_index>
  mov    (%rsp),%rdi
  mov    0x10(%rsp),%r10d
  cmp    $0xffffffff,%eax
  mov    %eax,%ebx
  je     L323
L389:
  cmp    %ebp,%r13d
  jl     L117
L510:
  lea    0x0(%r13,%rbp,1),%edx
  mov    %edx,%eax
  shr    $0x1f,%eax
  add    %edx,%eax
  sar    %eax
  movslq %eax,%rdx
  mov    (%rdi,%rdx,4),%r15d
  cmp    %r15d,%eax
  je     L449
  lea    -0x1(%rax),%r8d
  mov    %r15d,%r9d
  cmp    %r15d,%r8d
  cmovg  %r15d,%r8d
  add    $0x1,%eax
  cmp    %r15d,%eax
  cmovge %eax,%r9d
  cmp    %ebp,%r8d
  jl     L203
  lea    (%r8,%rbp,1),%eax
  mov    %r8d,(%rsp)
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %eax,%ecx
  sar    %ecx
  movslq %ecx,%rax
  mov    (%rdi,%rax,4),%r15d
  cmp    %r15d,%ecx
  je     L30
  lea    -0x1(%rcx),%edx
  mov    %ebp,%esi
  mov    %r9d,0x1c(%rsp)
  cmp    %r15d,%edx
  mov    %ecx,0x10(%rsp)
  cmovg  %r15d,%edx
  mov    %rdi,0x8(%rsp)
  call   <magic_index>
  mov    0x10(%rsp),%ecx
  mov    %r15d,%esi
  mov    (%rsp),%edx
  mov    0x8(%rsp),%rdi
  mov    %eax,%ebp
  add    $0x1,%ecx
  cmp    %r15d,%ecx
  mov    %rdi,(%rsp)
  cmovge %ecx,%esi
  call   <magic_index>
  mov    (%rsp),%rdi
  mov    0x1c(%rsp),%r9d
  cmp    $0xffffffff,%eax
  mov    %eax,%r15d
  je     L408
  cmp    %r9d,%r13d
  jl     L659
L320:
  lea    0x0(%r13,%r9,1),%eax
  mov    %eax,%ecx
  shr    $0x1f,%ecx
  add    %eax,%ecx
  sar    %ecx
  movslq %ecx,%rax
  mov    (%rdi,%rax,4),%ebp
  cmp    %ebp,%ecx
  je     L752
  lea    -0x1(%rcx),%edx
  mov    %r9d,%esi
  mov    %ecx,0x8(%rsp)
  cmp    %ebp,%edx
  mov    %rdi,(%rsp)
  cmovg  %ebp,%edx
  call   <magic_index>
  mov    0x8(%rsp),%ecx
  mov    %ebp,%esi
  mov    (%rsp),%rdi
  mov    %r13d,%edx
  mov    %eax,0x10(%rsp)
  add    $0x1,%ecx
  cmp    %ebp,%ecx
  cmovge %ecx,%esi
  call   <magic_index>
  cmp    $0xffffffff,%eax
  je     L274
  mov    %eax,%r14d
  jmp    L476
  nopw   0x0(%rax,%rax,1)
L117:
  mov    %ebx,%r14d
  jmp    L476
  nopl   0x0(%rax,%rax,1)
L266:
  mov    0x28(%rsp),%ebp
L358:
  cmp    %r15d,%r14d
  jge    L296
  jmp    L206
  nopw   0x0(%rax,%rax,1)
L274:
  mov    0x10(%rsp),%ebp
L752:
  cmp    $0xffffffff,%ebp
  jne    L29
L449:
  cmp    $0xffffffff,%r15d
  je     L27
L659:
  mov    %r15d,%r14d
  jmp    L476
  nopl   0x0(%rax,%rax,1)
L408:
  mov    %ebp,%r15d
L30:
  cmp    %r9d,%r13d
  jge    L320
  jmp    L449
  cs nopw 0x0(%rax,%rax,1)
L323:
  mov    0x1c(%rsp),%ebx
L433:
  cmp    $0xffffffff,%ebx
  jne    L389
L872:
  mov    %r10d,%ebx
  jmp    L312
  nopl   (%rax)
L38:
  mov    0x34(%rsp),%r10d
L120:
  cmp    $0xffffffff,%r10d
  cmove  0x8(%rsp),%r10d
  jmp    L458
  nopl   0x0(%rax)
L29:
  mov    %ebp,%r14d
  jmp    L476
  nopl   0x0(%rax,%rax,1)
L440:
  mov    $0xffffffff,%r14d
  jmp    L476
L860:
  mov    $0xffffffff,%r12d
  jmp    L293
L452:
  mov    %r12d,%r14d
  jmp    L476
L421:
  mov    $0xffffffff,%r8d
  jmp    L127
L144:
  cmp    %r15d,%r13d
  jl     L452
  mov    $0xffffffff,%r14d
  jmp    L366
L309:
  mov    %r8d,%r12d
  jmp    L293
L714:
  mov    %r10d,%r8d
  jmp    L127
L355:
  mov    $0xffffffff,%ebx
  jmp    L337
L247:
  cmp    %r15d,%r14d
  jl     L309
  mov    $0xffffffff,%ebp
  jmp    L296
L672:
  cmp    %ebp,%r13d
  jl     L428
  mov    $0xffffffff,%ebx
  jmp    L510
L92:
  mov    $0xffffffff,%r10d
  jmp    L458
L768:
  mov    $0xffffffff,%r10d
  jmp    L678
L423:
  mov    0x8(%rsp),%r10d
  jmp    L458
L203:
  cmp    %r9d,%r13d
  jl     L27
  mov    $0xffffffff,%r15d
  jmp    L320
L118:
  movl   $0xffffffff,0x8(%rsp)
  jmp    L313
L787:
  mov    %ebp,%r12d
  jmp    L293
```

assistant: ```c
int magic_index(int *array, int start, int end) {
  if (end < start)
    return -1;
  int middle = (start + end) / 2;
  if (array[middle] == middle)
    return middle;
  int min = array[middle] < middle - 1 ? array[middle] : middle - 1;
  int left = magic_index(array, start, min);
  int max = array[middle] > middle + 1 ? array[middle] : middle + 1;
  int right = magic_index(array, max, end);
  return right == -1 ? left : right;
}
```