ylfeng/ReF-Decompile-dataset huggingface dataset:
user: What would the C source look like for the assembly code provided here?

```asm
<display_array>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  mov    %rcx,%r12
  push   %rbp
  mov    %esi,%ebp
  push   %rbx
  mov    %edx,%ebx
  sub    $0x8,%rsp
  test   %esi,%esi
  jle    L75
  mov    %rdi,%r14
  mov    $0x1,%r13d
  lea    D26(%rip),%r15
  jmp    L4
  nopl   0x0(%rax,%rax,1)
L39:
  cmp    $0xfff0bdc0,%edx
  je     L89
  lea    D14(%rip),%rsi
  mov    %r12,%rdi
  xor    %eax,%eax
  call   <fprintf@plt>
L49:
  mov    %r13d,%eax
  cltd
  idiv   %ebx
  test   %edx,%edx
  je     L26
L110:
  add    $0x1,%r13d
  add    $0x4,%r14
  cmp    %r13d,%ebp
  jl     L75
L4:
  mov    (%r14),%edx
  cmp    $0xffffffce,%edx
  je     L92
  cmp    $0xf4240,%edx
  jne    L39
  mov    $0x6,%edx
  mov    %r12,%rcx
  mov    $0x1,%esi
  lea    D8(%rip),%rdi
  call   <fwrite@plt>
  mov    %r13d,%eax
  cltd
  idiv   %ebx
  test   %edx,%edx
  jne    L110
L26:
  mov    %r12,%rsi
  mov    $0xa,%edi
  add    $0x1,%r13d
  add    $0x4,%r14
  call   <fputc@plt>
  cmp    %r13d,%ebp
  jge    L4
L75:
  mov    %ebp,%eax
  cltd
  idiv   %ebx
  test   %edx,%edx
  jne    L109
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   (%rax)
L89:
  mov    %r12,%rcx
  mov    $0x6,%edx
  mov    $0x1,%esi
  lea    D22(%rip),%rdi
  call   <fwrite@plt>
  jmp    L49
  cs nopw 0x0(%rax,%rax,1)
L92:
  mov    %r12,%rcx
  mov    $0x6,%edx
  mov    $0x1,%esi
  mov    %r15,%rdi
  call   <fwrite@plt>
  jmp    L49
  nopw   0x0(%rax,%rax,1)
L109:
  add    $0x8,%rsp
  mov    %r12,%rsi
  mov    $0xa,%edi
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    1070 <fputc@plt>
```

tool_calls: name: disassemble_data
arguments: tag: D26
type_guessed: string
name: disassemble_data
arguments: tag: D14
type_guessed: string
name: disassemble_data
arguments: tag: D8
type_guessed: string
name: disassemble_data
arguments: tag: D22
type_guessed: string

tool: D26:    DEF

tool: D14: %6d

tool: D8:    INF

tool: D22:   -INf

assistant: ```c
void display_array(int *p, int size, int nl, FILE *fp) {
  int i;
  for (i = 1; i <= size; i++, p++) {
    switch (*p) {
    case 1000000:
      fprintf(fp, "   INF");
      break;
    case -1000000:
      fprintf(fp, "  -INf");
      break;
    case -50:
      fprintf(fp, "   DEF");
      break;
    default:
      fprintf(fp, "%6d", *p);
      break;
    }
    if ((i % nl) == 0)
      fprintf(fp, "\n");
  }
  if (size % nl)
    fprintf(fp, "\n");
  return;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<compute_rholist>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x14(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x18(%rbp)
  mov    %rcx,-0x28(%rbp)
  mov    %r8,-0x30(%rbp)
  movl   $0x0,-0x8(%rbp)
  movl   $0x1,-0x4(%rbp)
  jmp    L29
L0:
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  pxor   %xmm1,%xmm1
  cvtsi2ssl -0x18(%rbp),%xmm1
  comiss %xmm1,%xmm0
  jbe    L9
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mov    -0x4(%rbp),%eax
  cltq
  shl    $0x2,%rax
  lea    -0x4(%rax),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm1
  comiss %xmm1,%xmm0
  jbe    L9
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  mov    -0x4(%rbp),%eax
  cltq
  add    $0x1,%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm1
  comiss %xmm1,%xmm0
  jbe    L9
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x28(%rbp),%rax
  add    %rax,%rdx
  mov    -0x4(%rbp),%eax
  mov    %eax,(%rdx)
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x8(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x8(%rbp)
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  movss  (%rcx),%xmm0
  movss  %xmm0,(%rax)
L9:
  addl   $0x1,-0x4(%rbp)
L29:
  mov    -0x14(%rbp),%eax
  sub    $0x1,%eax
  cmp    %eax,-0x4(%rbp)
  jl     L0
  mov    -0x8(%rbp),%eax
  pop    %rbp
  ret
```

assistant: ```c
int compute_rholist(int N, float *hough, int rhothr, int *rholist, float *rhoampl) {
  int rhocnt = 0;
  for (int yp = 1; yp < N - 1; yp++) {
    if (hough[yp] > rhothr && hough[yp] > hough[yp - 1] && hough[yp] > hough[yp + 1]) {
      rholist[rhocnt] = yp;
      rhoampl[rhocnt++] = hough[yp];
    }
  }
  return rhocnt;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<compute_rholist>:
  endbr64
  cmp    $0x2,%edi
  jle    L18
  lea    -0x3(%rdi),%edi
  add    $0x2,%rdi
  mov    $0x1,%eax
  mov    $0x0,%r9d
  pxor   %xmm1,%xmm1
  cvtsi2ss %edx,%xmm1
  jmp    L21
L55:
  add    $0x1,%rax
  cmp    %rdi,%rax
  je     L31
L21:
  movss  (%rsi,%rax,4),%xmm0
  comiss %xmm1,%xmm0
  jbe    L55
  comiss -0x4(%rsi,%rax,4),%xmm0
  jbe    L55
  comiss 0x4(%rsi,%rax,4),%xmm0
  jbe    L55
  movslq %r9d,%r10
  mov    %eax,(%rcx,%r10,4)
  add    $0x1,%r9d
  movss  (%rsi,%rax,4),%xmm0
  movss  %xmm0,(%r8,%r10,4)
  jmp    L55
L18:
  mov    $0x0,%r9d
L31:
  mov    %r9d,%eax
  ret
```

assistant: ```c
int compute_rholist(int N, float *hough, int rhothr, int *rholist, float *rhoampl) {
  int rhocnt = 0;
  for (int yp = 1; yp < N - 1; yp++) {
    if (hough[yp] > rhothr && hough[yp] > hough[yp - 1] && hough[yp] > hough[yp + 1]) {
      rholist[rhocnt] = yp;
      rhoampl[rhocnt++] = hough[yp];
    }
  }
  return rhocnt;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<compute_rholist>:
  endbr64
  cmp    $0x2,%edi
  jle    L33
  pxor   %xmm1,%xmm1
  mov    $0x1,%eax
  xor    %r9d,%r9d
  cvtsi2ss %edx,%xmm1
  lea    -0x3(%rdi),%edx
  add    $0x2,%rdx
L28:
  movss  (%rsi,%rax,4),%xmm0
  comiss %xmm1,%xmm0
  jbe    L26
  comiss -0x4(%rsi,%rax,4),%xmm0
  jbe    L26
  comiss 0x4(%rsi,%rax,4),%xmm0
  jbe    L26
  movslq %r9d,%rdi
  add    $0x1,%r9d
  mov    %eax,(%rcx,%rdi,4)
  movss  %xmm0,(%r8,%rdi,4)
  nopl   0x0(%rax,%rax,1)
L26:
  add    $0x1,%rax
  cmp    %rdx,%rax
  jne    L28
  mov    %r9d,%eax
  ret
  nopl   (%rax)
L33:
  xor    %r9d,%r9d
  mov    %r9d,%eax
  ret
```

assistant: ```c
int compute_rholist(int N, float *hough, int rhothr, int *rholist, float *rhoampl) {
  int rhocnt = 0;
  for (int yp = 1; yp < N - 1; yp++) {
    if (hough[yp] > rhothr && hough[yp] > hough[yp - 1] && hough[yp] > hough[yp + 1]) {
      rholist[rhocnt] = yp;
      rhoampl[rhocnt++] = hough[yp];
    }
  }
  return rhocnt;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<compute_rholist>:
  endbr64
  cmp    $0x2,%edi
  jle    L22
  pxor   %xmm1,%xmm1
  mov    $0x1,%eax
  xor    %r9d,%r9d
  cvtsi2ss %edx,%xmm1
  lea    -0x3(%rdi),%edx
  add    $0x2,%rdx
L14:
  movss  (%rsi,%rax,4),%xmm0
  comiss %xmm1,%xmm0
  jbe    L40
  comiss -0x4(%rsi,%rax,4),%xmm0
  jbe    L40
  comiss 0x4(%rsi,%rax,4),%xmm0
  jbe    L40
  movslq %r9d,%rdi
  add    $0x1,%r9d
  mov    %eax,(%rcx,%rdi,4)
  movss  %xmm0,(%r8,%rdi,4)
  nopl   0x0(%rax,%rax,1)
L40:
  add    $0x1,%rax
  cmp    %rdx,%rax
  jne    L14
  mov    %r9d,%eax
  ret
  nopl   (%rax)
L22:
  xor    %r9d,%r9d
  mov    %r9d,%eax
  ret
```

assistant: ```c
int compute_rholist(int N, float *hough, int rhothr, int *rholist, float *rhoampl) {
  int rhocnt = 0;
  for (int yp = 1; yp < N - 1; yp++) {
    if (hough[yp] > rhothr && hough[yp] > hough[yp - 1] && hough[yp] > hough[yp + 1]) {
      rholist[rhocnt] = yp;
      rhoampl[rhocnt++] = hough[yp];
    }
  }
  return rhocnt;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<hweight8>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,%eax
  mov    %al,-0x14(%rbp)
  movzbl -0x14(%rbp),%eax
  and    $0x55,%eax
  mov    %eax,%edx
  movzbl -0x14(%rbp),%eax
  shr    %al
  movzbl %al,%eax
  and    $0x55,%eax
  add    %edx,%eax
  mov    %ax,-0x2(%rbp)
  movzwl -0x2(%rbp),%eax
  and    $0x33,%eax
  mov    %eax,%edx
  movzwl -0x2(%rbp),%eax
  shr    $0x2,%ax
  and    $0x33,%eax
  add    %edx,%eax
  mov    %ax,-0x2(%rbp)
  movzwl -0x2(%rbp),%eax
  and    $0xf,%eax
  mov    %eax,%edx
  movzwl -0x2(%rbp),%eax
  shr    $0x4,%ax
  movzwl %ax,%eax
  and    $0xf,%eax
  add    %edx,%eax
  pop    %rbp
  ret
```

assistant: ```c
extern unsigned int hweight8(unsigned char w) {
  unsigned short res = (w & 0x55) + ((w >> 1) & 0x55);
  res = (res & 0x33) + ((res >> 2) & 0x33);
  return (res & 0x0F) + ((res >> 4) & 0x0F);
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<hweight8>:
  endbr64
  mov    %edi,%eax
  shr    %al
  and    $0x55,%eax
  and    $0x55,%edi
  add    %eax,%edi
  mov    %edi,%edx
  and    $0x33,%edx
  shr    $0x2,%di
  and    $0x33,%edi
  add    %edi,%edx
  mov    %edx,%eax
  and    $0xf,%eax
  shr    $0x4,%dx
  movzwl %dx,%edx
  add    %edx,%eax
  ret
```

assistant: ```c
extern unsigned int hweight8(unsigned char w) {
  unsigned short res = (w & 0x55) + ((w >> 1) & 0x55);
  res = (res & 0x33) + ((res >> 2) & 0x33);
  return (res & 0x0F) + ((res >> 4) & 0x0F);
}
```
user: Translate the below assembly code into C programming language:

```asm
<hweight8>:
  endbr64
  mov    %edi,%eax
  and    $0x55,%edi
  shr    %al
  and    $0x55,%eax
  add    %eax,%edi
  mov    %edi,%edx
  shr    $0x2,%di
  and    $0x33,%edx
  and    $0x33,%edi
  add    %edi,%edx
  mov    %edx,%eax
  shr    $0x4,%dx
  and    $0xf,%eax
  movzwl %dx,%edx
  add    %edx,%eax
  ret
```

assistant: ```c
extern unsigned int hweight8(unsigned char w) {
  unsigned short res = (w & 0x55) + ((w >> 1) & 0x55);
  res = (res & 0x33) + ((res >> 2) & 0x33);
  return (res & 0x0F) + ((res >> 4) & 0x0F);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<hweight8>:
  endbr64
  mov    %edi,%eax
  and    $0x55,%edi
  shr    %al
  and    $0x55,%eax
  add    %eax,%edi
  mov    %edi,%edx
  shr    $0x2,%di
  and    $0x33,%edx
  and    $0x33,%edi
  add    %edi,%edx
  mov    %edx,%eax
  shr    $0x4,%dx
  and    $0xf,%eax
  movzwl %dx,%edx
  add    %edx,%eax
  ret
```

assistant: ```c
extern unsigned int hweight8(unsigned char w) {
  unsigned short res = (w & 0x55) + ((w >> 1) & 0x55);
  res = (res & 0x33) + ((res >> 2) & 0x33);
  return (res & 0x0F) + ((res >> 4) & 0x0F);
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<_hrt_p2_up>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  shr    %eax
  or     %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  shr    $0x2,%eax
  or     %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  shr    $0x4,%eax
  or     %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  shr    $0x8,%eax
  or     %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  shr    $0x10,%eax
  or     %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  add    $0x1,%eax
  pop    %rbp
  ret
```

assistant: ```c
unsigned int _hrt_p2_up(unsigned int x) {
  x |= (x >> 1);
  x |= (x >> 2);
  x |= (x >> 4);
  x |= (x >> 8);
  x |= (x >> 16);
  return x + 1;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<_hrt_p2_up>:
  endbr64
  mov    %edi,%eax
  shr    %eax
  or     %edi,%eax
  mov    %eax,%edx
  shr    $0x2,%edx
  or     %eax,%edx
  mov    %edx,%eax
  shr    $0x4,%eax
  or     %edx,%eax
  mov    %eax,%edx
  shr    $0x8,%edx
  or     %eax,%edx
  mov    %edx,%eax
  shr    $0x10,%eax
  or     %edx,%eax
  add    $0x1,%eax
  ret
```

assistant: ```c
unsigned int _hrt_p2_up(unsigned int x) {
  x |= (x >> 1);
  x |= (x >> 2);
  x |= (x >> 4);
  x |= (x >> 8);
  x |= (x >> 16);
  return x + 1;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<_hrt_p2_up>:
  endbr64
  mov    %edi,%eax
  shr    %eax
  or     %edi,%eax
  mov    %eax,%edx
  shr    $0x2,%edx
  or     %eax,%edx
  mov    %edx,%eax
  shr    $0x4,%eax
  or     %edx,%eax
  mov    %eax,%edx
  shr    $0x8,%edx
  or     %eax,%edx
  mov    %edx,%eax
  shr    $0x10,%eax
  or     %edx,%eax
  add    $0x1,%eax
  ret
```

assistant: ```c
unsigned int _hrt_p2_up(unsigned int x) {
  x |= (x >> 1);
  x |= (x >> 2);
  x |= (x >> 4);
  x |= (x >> 8);
  x |= (x >> 16);
  return x + 1;
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<_hrt_p2_up>:
  endbr64
  mov    %edi,%eax
  shr    %eax
  or     %edi,%eax
  mov    %eax,%edx
  shr    $0x2,%edx
  or     %eax,%edx
  mov    %edx,%eax
  shr    $0x4,%eax
  or     %edx,%eax
  mov    %eax,%edx
  shr    $0x8,%edx
  or     %eax,%edx
  mov    %edx,%eax
  shr    $0x10,%eax
  or     %edx,%eax
  add    $0x1,%eax
  ret
```

assistant: ```c
unsigned int _hrt_p2_up(unsigned int x) {
  x |= (x >> 1);
  x |= (x >> 2);
  x |= (x >> 4);
  x |= (x >> 8);
  x |= (x >> 16);
  return x + 1;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<postfix>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x58,%rsp
  mov    %rdi,-0x58(%rbp)
  mov    %rsi,-0x60(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x48(%rbp)
  movl   $0x0,-0x44(%rbp)
  movb   $0x24,-0x40(%rbp)
  movl   $0x0,-0x4c(%rbp)
  jmp    L58
L35:
  mov    -0x4c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x58(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %al,-0x4d(%rbp)
  movsbl -0x4d(%rbp),%eax
  mov    %eax,%edi
  call   <isalnum@plt>
  test   %rax,%rax
  je     L60
  mov    -0x48(%rbp),%eax
  lea    0x1(%rax),%edx
  mov    %edx,-0x48(%rbp)
  movslq %eax,%rdx
  mov    -0x60(%rbp),%rax
  add    %rax,%rdx
  movzbl -0x4d(%rbp),%eax
  mov    %al,(%rdx)
  jmp    L9
L60:
  cmpb   $0x29,-0x4d(%rbp)
  jne    L56
  jmp    L12
L48:
  mov    -0x44(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0x44(%rbp)
  mov    -0x48(%rbp),%edx
  lea    0x1(%rdx),%ecx
  mov    %ecx,-0x48(%rbp)
  movslq %edx,%rcx
  mov    -0x60(%rbp),%rdx
  add    %rcx,%rdx
  cltq
  movzbl -0x40(%rbp,%rax,1),%eax
  mov    %al,(%rdx)
L12:
  mov    -0x44(%rbp),%eax
  cltq
  movzbl -0x40(%rbp,%rax,1),%eax
  cmp    $0x28,%al
  jne    L48
  subl   $0x1,-0x44(%rbp)
  jmp    L9
L16:
  mov    -0x44(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0x44(%rbp)
  mov    -0x48(%rbp),%edx
  lea    0x1(%rdx),%ecx
  mov    %ecx,-0x48(%rbp)
  movslq %edx,%rcx
  mov    -0x60(%rbp),%rdx
  add    %rcx,%rdx
  cltq
  movzbl -0x40(%rbp,%rax,1),%eax
  mov    %al,(%rdx)
L56:
  mov    -0x44(%rbp),%eax
  cltq
  movzbl -0x40(%rbp,%rax,1),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <ISP@plt>
  mov    %rax,%rbx
  movsbl -0x4d(%rbp),%eax
  mov    %eax,%edi
  call   <ICP@plt>
  cmp    %rax,%rbx
  jge    L16
  addl   $0x1,-0x44(%rbp)
  mov    -0x44(%rbp),%eax
  cltq
  movzbl -0x4d(%rbp),%edx
  mov    %dl,-0x40(%rbp,%rax,1)
L9:
  addl   $0x1,-0x4c(%rbp)
L58:
  mov    -0x58(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cmp    %eax,-0x4c(%rbp)
  jl     L35
  jmp    L7
L72:
  mov    -0x44(%rbp),%eax
  lea    -0x1(%rax),%edx
  mov    %edx,-0x44(%rbp)
  mov    -0x48(%rbp),%edx
  lea    0x1(%rdx),%ecx
  mov    %ecx,-0x48(%rbp)
  movslq %edx,%rcx
  mov    -0x60(%rbp),%rdx
  add    %rcx,%rdx
  cltq
  movzbl -0x40(%rbp,%rax,1),%eax
  mov    %al,(%rdx)
L7:
  cmpl   $0x0,-0x44(%rbp)
  jg     L72
  mov    -0x48(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x60(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  nop
  mov    -0x18(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L67
  call   <__stack_chk_fail@plt>
L67:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
void postfix(char in[], char p[]) {
  int i, j = 0, top = 0;
  char x, S[40];
  S[0] = '$';
  for (i = 0; i < strlen(in); i++) {
    x = in[i];
    if (isalnum(x))
      p[j++] = x;
    else if (x == ')') {
      while (S[top] != '(')
        p[j++] = S[top--];
      top--;
    } else {
      while (ISP(S[top]) >= ICP(x))
        p[j++] = S[top--];
      S[++top] = x;
    }
  }
  while (top > 0)
    p[j++] = S[top--];
  p[j] = '\0';
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<postfix>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x58,%rsp
  mov    %rdi,0x10(%rsp)
  mov    %rsi,%r13
  mov    %fs:0x28,%rax
  mov    %rax,0x48(%rsp)
  xor    %eax,%eax
  movb   $0x24,0x20(%rsp)
  mov    $0x0,%r15d
  mov    $0x0,%ebx
  movl   $0x0,0x4(%rsp)
  jmp    L49
L125:
  cmpb   $0x29,0x1f(%rsp)
  je     L129
  movslq 0x4(%rsp),%rbp
  movslq %ebx,%rbx
  jmp    L60
L129:
  movslq %ebx,%rax
  movzbl 0x20(%rsp,%rax,1),%ecx
  cmp    $0x28,%cl
  je     L11
  lea    -0x1(%rbx),%edx
  movslq %edx,%rdx
  mov    0x4(%rsp),%eax
  add    $0x1,%eax
  cltq
L66:
  mov    %edx,%ebx
  mov    %eax,0x4(%rsp)
  mov    %cl,-0x1(%r13,%rax,1)
  movzbl 0x20(%rsp,%rdx,1),%ecx
  sub    $0x1,%rdx
  add    $0x1,%rax
  cmp    $0x28,%cl
  jne    L66
L11:
  sub    $0x1,%ebx
  jmp    L93
L81:
  mov    %r12b,0x0(%r13,%rbp,1)
  add    $0x1,%rbp
L60:
  mov    %ebx,0x18(%rsp)
  mov    %ebp,0x4(%rsp)
  movzbl 0x20(%rsp,%rbx,1),%r12d
  movsbl %r12b,%edi
  call   <ISP@plt>
  mov    %rax,0x8(%rsp)
  mov    %r14d,%edi
  call   <ICP@plt>
  sub    $0x1,%rbx
  cmp    %rax,0x8(%rsp)
  jge    L81
  mov    0x18(%rsp),%ebx
  add    $0x1,%ebx
  movslq %ebx,%rax
  movzbl 0x1f(%rsp),%ecx
  mov    %cl,0x20(%rsp,%rax,1)
L93:
  add    $0x1,%r15
L49:
  mov    0x10(%rsp),%rdi
  call   <strlen@plt>
  cmp    %r15d,%eax
  jle    L0
  mov    0x10(%rsp),%rax
  movzbl (%rax,%r15,1),%ebp
  mov    %bpl,0x1f(%rsp)
  movsbl %bpl,%r14d
  mov    %r14d,%edi
  call   <isalnum@plt>
  test   %rax,%rax
  je     L125
  mov    0x4(%rsp),%edx
  movslq %edx,%rax
  mov    %bpl,0x0(%r13,%rax,1)
  lea    0x1(%rdx),%eax
  mov    %eax,0x4(%rsp)
  jmp    L93
L0:
  test   %ebx,%ebx
  jle    L63
  movslq %ebx,%rax
  lea    0x20(%rsp,%rax,1),%rdx
  movslq 0x4(%rsp),%rcx
  lea    0x0(%r13,%rcx,1),%rax
  lea    0x1(%r13,%rcx,1),%rsi
  lea    -0x1(%rbx),%ecx
  add    %rcx,%rsi
L96:
  movzbl (%rdx),%ecx
  mov    %cl,(%rax)
  sub    $0x1,%rdx
  add    $0x1,%rax
  cmp    %rsi,%rax
  jne    L96
  mov    0x4(%rsp),%eax
  lea    (%rax,%rbx,1),%eax
  mov    %eax,0x4(%rsp)
L63:
  movslq 0x4(%rsp),%rax
  movb   $0x0,0x0(%r13,%rax,1)
  mov    0x48(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L54
  add    $0x58,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L54:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void postfix(char in[], char p[]) {
  int i, j = 0, top = 0;
  char x, S[40];
  S[0] = '$';
  for (i = 0; i < strlen(in); i++) {
    x = in[i];
    if (isalnum(x))
      p[j++] = x;
    else if (x == ')') {
      while (S[top] != '(')
        p[j++] = S[top--];
      top--;
    } else {
      while (ISP(S[top]) >= ICP(x))
        p[j++] = S[top--];
      S[++top] = x;
    }
  }
  while (top > 0)
    p[j++] = S[top--];
  p[j] = '\0';
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<postfix>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  xor    %ebp,%ebp
  push   %rbx
  xor    %ebx,%ebx
  sub    $0x68,%rsp
  mov    %rdi,0x20(%rsp)
  mov    %rsi,0x8(%rsp)
  mov    %fs:0x28,%rax
  mov    %rax,0x58(%rsp)
  xor    %eax,%eax
  movb   $0x24,0x30(%rsp)
  movq   $0x0,0x18(%rsp)
  jmp    L97
L71:
  mov    0x8(%rsp),%rcx
  movslq %ebp,%rax
  add    $0x1,%ebp
  mov    %r13b,(%rcx,%rax,1)
L18:
  addq   $0x1,0x18(%rsp)
L97:
  mov    0x20(%rsp),%rdi
  call   <strlen@plt>
  cmp    0x18(%rsp),%eax
  jle    L44
  mov    0x20(%rsp),%rax
  mov    0x18(%rsp),%rsi
  movsbl (%rax,%rsi,1),%r13d
  mov    %r13d,%edi
  mov    %r13b,0x2f(%rsp)
  call   <isalnum@plt>
  test   %rax,%rax
  jne    L71
  movslq %ebx,%rdx
  cmpb   $0x29,0x2f(%rsp)
  movzbl 0x30(%rsp,%rdx,1),%ecx
  je     L41
  lea    0x30(%rsp),%rax
  movslq %ebp,%r14
  mov    %rdx,%r15
  mov    %rax,0x10(%rsp)
  jmp    L109
  nopl   0x0(%rax,%rax,1)
L117:
  mov    0x8(%rsp),%rax
  mov    %r12b,(%rax,%r14,1)
  add    $0x1,%r14
L109:
  mov    0x10(%rsp),%rax
  mov    %r15d,0x28(%rsp)
  mov    %r14d,%ebp
  movsbl (%rax,%r15,1),%edi
  sub    $0x1,%r15
  mov    %edi,%r12d
  call   <ISP@plt>
  mov    %r13d,%edi
  mov    %rax,%rbx
  call   <ICP@plt>
  cmp    %rax,%rbx
  jge    L117
  mov    0x28(%rsp),%ebx
  movzbl 0x2f(%rsp),%edx
  add    $0x1,%ebx
  movslq %ebx,%rax
  mov    %dl,0x30(%rsp,%rax,1)
  jmp    L18
  nopl   0x0(%rax,%rax,1)
L41:
  cmp    $0x28,%cl
  je     L89
  lea    0x30(%rsp),%rsi
  lea    -0x1(%rbx),%edx
  mov    %rsi,0x10(%rsp)
  lea    0x1(%rbp),%eax
  movslq %edx,%rdx
  cltq
  nopw   0x0(%rax,%rax,1)
L42:
  mov    0x8(%rsp),%rsi
  mov    %edx,%ebx
  mov    %eax,%ebp
  mov    %cl,-0x1(%rsi,%rax,1)
  mov    0x10(%rsp),%rsi
  add    $0x1,%rax
  movzbl (%rsi,%rdx,1),%ecx
  sub    $0x1,%rdx
  cmp    $0x28,%cl
  jne    L42
L89:
  sub    $0x1,%ebx
  jmp    L18
  nopl   0x0(%rax,%rax,1)
L44:
  test   %ebx,%ebx
  jle    L55
  mov    0x8(%rsp),%rsi
  movslq %ebx,%rax
  movslq %ebp,%rcx
  lea    0x30(%rsp,%rax,1),%rdx
  lea    (%rsi,%rcx,1),%rax
  lea    0x1(%rsi,%rcx,1),%rsi
  lea    -0x1(%rbx),%ecx
  mov    %rcx,%rbx
  add    %rcx,%rsi
  xchg   %ax,%ax
L61:
  movzbl (%rdx),%ecx
  add    $0x1,%rax
  sub    $0x1,%rdx
  mov    %cl,-0x1(%rax)
  cmp    %rsi,%rax
  jne    L61
  lea    0x1(%rbp,%rbx,1),%ebp
L55:
  mov    0x8(%rsp),%rax
  movslq %ebp,%rbp
  movb   $0x0,(%rax,%rbp,1)
  mov    0x58(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L104
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L104:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void postfix(char in[], char p[]) {
  int i, j = 0, top = 0;
  char x, S[40];
  S[0] = '$';
  for (i = 0; i < strlen(in); i++) {
    x = in[i];
    if (isalnum(x))
      p[j++] = x;
    else if (x == ')') {
      while (S[top] != '(')
        p[j++] = S[top--];
      top--;
    } else {
      while (ISP(S[top]) >= ICP(x))
        p[j++] = S[top--];
      S[++top] = x;
    }
  }
  while (top > 0)
    p[j++] = S[top--];
  p[j] = '\0';
}
```