ylfeng/ReF-Decompile-dataset huggingface dataset:
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<turn_on_led>:
  endbr64
  movq   $0x20000,0x1c20810
  movq   $0xfff,0x1f02c10
  ret
```

assistant: ```c
void turn_on_led() {
  (*(volatile unsigned long *)0x01C20810) = 1 << 17;
  (*(volatile unsigned long *)0x01F02C10) = 0xFFF;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<neg16>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  neg    %ax
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  pop    %rbp
  ret
```

assistant: ```c
int64_t neg16(int64_t in) {
  int64_t out;
  asm("neg %%ax" : "=a"(out) : "0"(in));
  return out;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<neg16>:
  endbr64
  mov    %rdi,%rax
  neg    %ax
  ret
```

assistant: ```c
int64_t neg16(int64_t in) {
  int64_t out;
  asm("neg %%ax" : "=a"(out) : "0"(in));
  return out;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<neg16>:
  endbr64
  mov    %rdi,%rax
  neg    %ax
  ret
```

assistant: ```c
int64_t neg16(int64_t in) {
  int64_t out;
  asm("neg %%ax" : "=a"(out) : "0"(in));
  return out;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<neg16>:
  endbr64
  mov    %rdi,%rax
  neg    %ax
  ret
```

assistant: ```c
int64_t neg16(int64_t in) {
  int64_t out;
  asm("neg %%ax" : "=a"(out) : "0"(in));
  return out;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x60,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x22,-0x50(%rbp)
  movl   $0xfffffffb,-0x4c(%rbp)
  movl   $0x6,-0x48(%rbp)
  movl   $0x0,-0x44(%rbp)
  movl   $0xc,-0x40(%rbp)
  movl   $0x64,-0x3c(%rbp)
  movl   $0x38,-0x38(%rbp)
  movl   $0x16,-0x34(%rbp)
  movl   $0x2c,-0x30(%rbp)
  movl   $0xfffffffd,-0x2c(%rbp)
  movl   $0xfffffff7,-0x28(%rbp)
  movl   $0xc,-0x24(%rbp)
  movl   $0x11,-0x20(%rbp)
  movl   $0x16,-0x1c(%rbp)
  movl   $0x6,-0x18(%rbp)
  movl   $0xb,-0x14(%rbp)
  lea    D26(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  movl   $0x0,-0x54(%rbp)
  jmp    L27
L46:
  mov    -0x54(%rbp),%eax
  cltq
  mov    -0x50(%rbp,%rax,4),%eax
  mov    %eax,%esi
  lea    D19(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  addl   $0x1,-0x54(%rbp)
L27:
  cmpl   $0xf,-0x54(%rbp)
  jle    L46
  lea    -0x50(%rbp),%rax
  mov    $0x10,%esi
  mov    %rax,%rdi
  call   <sort@plt>
  lea    D1(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  movl   $0x0,-0x54(%rbp)
  jmp    L28
L49:
  mov    -0x54(%rbp),%eax
  cltq
  mov    -0x50(%rbp,%rax,4),%eax
  mov    %eax,%esi
  lea    D19(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  addl   $0x1,-0x54(%rbp)
L28:
  cmpl   $0xf,-0x54(%rbp)
  jle    L49
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L43
  call   <__stack_chk_fail@plt>
L43:
  leave
  ret
```

tool_calls: name: parse_data
arguments: data_label: D26
type: string
name: parse_data
arguments: data_label: D19
type: string
name: parse_data
arguments: data_label: D1
type: string

tool: D26: The array before the sort:

tool: D19: %i 

tool: D1: 

The array after the sort:

assistant: ```c
int main(void) {
  int i;
  int array[16] = {34, -5, 6, 0, 12, 100, 56, 22, 44, -3, -9, 12, 17, 22, 6, 11};
  void sort(int a[], int n);
  printf("The array before the sort:\n");
  for (i = 0; i < 16; ++i)
    printf("%i ", array[i]);
  sort(array, 16);
  printf("\n\nThe array after the sort:\n");
  for (i = 0; i < 16; ++i)
    printf("%i ", array[i]);
  printf("\n");
  return 0;
}
```
user: What is the c source code of the assembly code below:

```asm
<main>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x58,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x48(%rsp)
  xor    %eax,%eax
  movl   $0x22,(%rsp)
  movl   $0xfffffffb,0x4(%rsp)
  movl   $0x6,0x8(%rsp)
  movl   $0x0,0xc(%rsp)
  movl   $0xc,0x10(%rsp)
  movl   $0x64,0x14(%rsp)
  movl   $0x38,0x18(%rsp)
  movl   $0x16,0x1c(%rsp)
  movl   $0x2c,0x20(%rsp)
  movl   $0xfffffffd,0x24(%rsp)
  movl   $0xfffffff7,0x28(%rsp)
  movl   $0xc,0x2c(%rsp)
  movl   $0x11,0x30(%rsp)
  movl   $0x16,0x34(%rsp)
  movl   $0x6,0x38(%rsp)
  movl   $0xb,0x3c(%rsp)
  lea    D14(%rip),%rdi
  call   <puts@plt>
  mov    %rsp,%rbx
  lea    0x40(%rsp),%r12
  mov    %rbx,%rbp
  lea    D33(%rip),%r13
L18:
  mov    0x0(%rbp),%esi
  mov    %r13,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  add    $0x4,%rbp
  cmp    %r12,%rbp
  jne    L18
  mov    %rsp,%rdi
  mov    $0x10,%esi
  call   <sort@plt>
  lea    D10(%rip),%rdi
  call   <puts@plt>
  lea    D33(%rip),%rbp
L26:
  mov    (%rbx),%esi
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  add    $0x4,%rbx
  cmp    %r12,%rbx
  jne    L26
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    0x48(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L29
  mov    $0x0,%eax
  add    $0x58,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L29:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_tag: D14
data_type: string
name: unpack_data
arguments: data_tag: D33
data_type: string
name: unpack_data
arguments: data_tag: D10
data_type: string

tool: D14: The array before the sort:

tool: D33: %i 

tool: D10: 

The array after the sort:

assistant: ```c
int main(void) {
  int i;
  int array[16] = {34, -5, 6, 0, 12, 100, 56, 22, 44, -3, -9, 12, 17, 22, 6, 11};
  void sort(int a[], int n);
  printf("The array before the sort:\n");
  for (i = 0; i < 16; ++i)
    printf("%i ", array[i]);
  sort(array, 16);
  printf("\n\nThe array after the sort:\n");
  for (i = 0; i < 16; ++i)
    printf("%i ", array[i]);
  printf("\n");
  return 0;
}
```
user: Translate the below assembly code into C programming language:

```asm
<main>:
  endbr64
  push   %r14
  lea    D9(%rip),%rdi
  push   %r13
  lea    D26(%rip),%r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x50,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x48(%rsp)
  movabs $0xfffffffb00000022,%rax
  mov    %rsp,%r14
  lea    0x40(%rsp),%r12
  movq   $0x6,0x8(%rsp)
  mov    %r14,%rbx
  mov    %r14,%rbp
  mov    %rax,(%rsp)
  movabs $0x640000000c,%rax
  mov    %rax,0x10(%rsp)
  movabs $0x1600000038,%rax
  mov    %rax,0x18(%rsp)
  movabs $0xfffffffd0000002c,%rax
  mov    %rax,0x20(%rsp)
  movabs $0xcfffffff7,%rax
  mov    %rax,0x28(%rsp)
  movabs $0x1600000011,%rax
  mov    %rax,0x30(%rsp)
  movabs $0xb00000006,%rax
  mov    %rax,0x38(%rsp)
  call   <puts@plt>
L3:
  mov    0x0(%rbp),%esi
  mov    %r13,%rdi
  xor    %eax,%eax
  add    $0x4,%rbp
  call   <printf@plt>
  cmp    %r12,%rbp
  jne    L3
  mov    %r14,%rdi
  mov    $0x10,%esi
  call   <sort@plt>
  lea    D25(%rip),%rdi
  call   <puts@plt>
  nop
L26:
  mov    (%rbx),%esi
  mov    %r13,%rdi
  xor    %eax,%eax
  add    $0x4,%rbx
  call   <printf@plt>
  cmp    %r12,%rbx
  jne    L26
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    0x48(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L7
  add    $0x50,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L7:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: label: D9
datatype: string
name: parse_data
arguments: label: D26
datatype: string
name: parse_data
arguments: label: D25
datatype: string

tool: D9: The array before the sort:

tool: D26: %i 

tool: D25: 

The array after the sort:

assistant: ```c
int main(void) {
  int i;
  int array[16] = {34, -5, 6, 0, 12, 100, 56, 22, 44, -3, -9, 12, 17, 22, 6, 11};
  void sort(int a[], int n);
  printf("The array before the sort:\n");
  for (i = 0; i < 16; ++i)
    printf("%i ", array[i]);
  sort(array, 16);
  printf("\n\nThe array after the sort:\n");
  for (i = 0; i < 16; ++i)
    printf("%i ", array[i]);
  printf("\n");
  return 0;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<main>:
  endbr64
  push   %r14
  lea    D34(%rip),%rdi
  push   %r13
  lea    D62(%rip),%r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x50,%rsp
  movdqa D61(%rip),%xmm0
  mov    %fs:0x28,%rax
  mov    %rax,0x48(%rsp)
  xor    %eax,%eax
  mov    %rsp,%r14
  lea    0x40(%rsp),%r12
  movaps %xmm0,(%rsp)
  movdqa D29(%rip),%xmm0
  mov    %r14,%rbx
  mov    %r14,%rbp
  movaps %xmm0,0x10(%rsp)
  movdqa D59(%rip),%xmm0
  movaps %xmm0,0x20(%rsp)
  movdqa D39(%rip),%xmm0
  movaps %xmm0,0x30(%rsp)
  call   <puts@plt>
  nopl   0x0(%rax)
L12:
  mov    0x0(%rbp),%esi
  mov    %r13,%rdi
  xor    %eax,%eax
  add    $0x4,%rbp
  call   <printf@plt>
  cmp    %rbp,%r12
  jne    L12
  mov    %r14,%rdi
  mov    $0x10,%esi
  call   <sort@plt>
  lea    D8(%rip),%rdi
  call   <puts@plt>
  nopw   0x0(%rax,%rax,1)
L16:
  mov    (%rbx),%esi
  mov    %r13,%rdi
  xor    %eax,%eax
  add    $0x4,%rbx
  call   <printf@plt>
  cmp    %rbx,%r12
  jne    L16
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    0x48(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L4
  add    $0x50,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L4:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: data_tag: D34
type_infered: string
name: read_data
arguments: data_tag: D62
type_infered: string
name: read_data
arguments: data_tag: D61
type_infered: byte[16]
name: read_data
arguments: data_tag: D29
type_infered: byte[16]
name: read_data
arguments: data_tag: D59
type_infered: byte[16]
name: read_data
arguments: data_tag: D39
type_infered: byte[16]
name: read_data
arguments: data_tag: D8
type_infered: string

tool: D34: The array before the sort:

tool: D62: %i 

tool: {"D61": [0x22,0x00,0x00,0x00,0xfb,0xff,0xff,0xff,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

tool: {"D29": [0x0c,0x00,0x00,0x00,0x64,0x00,0x00,0x00,0x38,0x00,0x00,0x00,0x16,0x00,0x00,0x00]}

tool: {"D59": [0x2c,0x00,0x00,0x00,0xfd,0xff,0xff,0xff,0xf7,0xff,0xff,0xff,0x0c,0x00,0x00,0x00]}

tool: {"D39": [0x11,0x00,0x00,0x00,0x16,0x00,0x00,0x00,0x06,0x00,0x00,0x00,0x0b,0x00,0x00,0x00]}

tool: D8: 

The array after the sort:

assistant: ```c
int main(void) {
  int i;
  int array[16] = {34, -5, 6, 0, 12, 100, 56, 22, 44, -3, -9, 12, 17, 22, 6, 11};
  void sort(int a[], int n);
  printf("The array before the sort:\n");
  for (i = 0; i < 16; ++i)
    printf("%i ", array[i]);
  sort(array, 16);
  printf("\n\nThe array after the sort:\n");
  for (i = 0; i < 16; ++i)
    printf("%i ", array[i]);
  printf("\n");
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<hashval>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  movl   $0x0,-0x4(%rbp)
  movl   $0x0,-0x8(%rbp)
  jmp    L14
L3:
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  add    %eax,-0x4(%rbp)
  addl   $0x1,-0x8(%rbp)
L14:
  mov    -0x8(%rbp),%eax
  cmp    -0x1c(%rbp),%eax
  jl     L3
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  imul   $0xffffffff80001001,%rdx,%rdx
  shr    $0x20,%rdx
  add    %eax,%edx
  sar    $0x12,%edx
  mov    %eax,%esi
  sar    $0x1f,%esi
  mov    %edx,%ecx
  sub    %esi,%ecx
  mov    %ecx,%edx
  shl    $0x13,%edx
  sub    %ecx,%edx
  sub    %edx,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  pop    %rbp
  ret
```

assistant: ```c
int hashval(int itemset[], int len) {
  int i, hval = 0;
  for (i = 0; i < len; i++)
    hval += itemset[i];
  hval = hval % 524287;
  return hval;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<hashval>:
  endbr64
  test   %esi,%esi
  jle    L15
  mov    %rdi,%rax
  lea    -0x1(%rsi),%edx
  lea    0x4(%rdi,%rdx,4),%rcx
  mov    $0x0,%edx
L25:
  add    (%rax),%edx
  add    $0x4,%rax
  cmp    %rcx,%rax
  jne    L25
L27:
  movslq %edx,%rax
  imul   $0xffffffff80001001,%rax,%rax
  shr    $0x20,%rax
  add    %edx,%eax
  sar    $0x12,%eax
  mov    %edx,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%eax
  mov    %eax,%ecx
  shl    $0x13,%ecx
  sub    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  ret
L15:
  mov    $0x0,%edx
  jmp    L27
```

assistant: ```c
int hashval(int itemset[], int len) {
  int i, hval = 0;
  for (i = 0; i < len; i++)
    hval += itemset[i];
  hval = hval % 524287;
  return hval;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<hashval>:
  endbr64
  test   %esi,%esi
  jle    L2
  lea    -0x1(%rsi),%eax
  xor    %edx,%edx
  lea    0x4(%rdi,%rax,4),%rax
  nopw   0x0(%rax,%rax,1)
L9:
  add    (%rdi),%edx
  add    $0x4,%rdi
  cmp    %rax,%rdi
  jne    L9
  movslq %edx,%rax
  mov    %edx,%ecx
  imul   $0xffffffff80001001,%rax,%rax
  sar    $0x1f,%ecx
  shr    $0x20,%rax
  add    %edx,%eax
  sar    $0x12,%eax
  sub    %ecx,%eax
  mov    %eax,%ecx
  shl    $0x13,%ecx
  sub    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  ret
  nopl   0x0(%rax)
L2:
  xor    %eax,%eax
  ret
```

assistant: ```c
int hashval(int itemset[], int len) {
  int i, hval = 0;
  for (i = 0; i < len; i++)
    hval += itemset[i];
  hval = hval % 524287;
  return hval;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<hashval>:
  endbr64
  mov    %rdi,%rcx
  test   %esi,%esi
  jle    L52
  lea    -0x1(%rsi),%eax
  cmp    $0x2,%eax
  jbe    L54
  mov    %esi,%edx
  mov    %rdi,%rax
  pxor   %xmm0,%xmm0
  shr    $0x2,%edx
  sub    $0x1,%edx
  shl    $0x4,%rdx
  lea    0x10(%rdi,%rdx,1),%rdx
  nopl   0x0(%rax,%rax,1)
L34:
  movdqu (%rax),%xmm2
  add    $0x10,%rax
  paddd  %xmm2,%xmm0
  cmp    %rdx,%rax
  jne    L34
  movdqa %xmm0,%xmm1
  mov    %esi,%eax
  psrldq $0x8,%xmm1
  and    $0xfffffffc,%eax
  paddd  %xmm1,%xmm0
  movdqa %xmm0,%xmm1
  psrldq $0x4,%xmm1
  paddd  %xmm1,%xmm0
  movd   %xmm0,%edx
  test   $0x3,%sil
  je     L3
L68:
  movslq %eax,%rdi
  lea    0x0(,%rdi,4),%r8
  add    (%rcx,%rdi,4),%edx
  lea    0x1(%rax),%edi
  cmp    %edi,%esi
  jle    L3
  add    $0x2,%eax
  add    0x4(%rcx,%r8,1),%edx
  cmp    %eax,%esi
  jle    L3
  add    0x8(%rcx,%r8,1),%edx
L3:
  movslq %edx,%rax
  mov    %edx,%ecx
  imul   $0xffffffff80001001,%rax,%rax
  sar    $0x1f,%ecx
  shr    $0x20,%rax
  add    %edx,%eax
  sar    $0x12,%eax
  sub    %ecx,%eax
  mov    %eax,%ecx
  shl    $0x13,%ecx
  sub    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  ret
  xchg   %ax,%ax
L52:
  xor    %eax,%eax
  ret
L54:
  xor    %edx,%edx
  xor    %eax,%eax
  jmp    L68
```

assistant: ```c
int hashval(int itemset[], int len) {
  int i, hval = 0;
  for (i = 0; i < len; i++)
    hval += itemset[i];
  hval = hval % 524287;
  return hval;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<hal_system_start>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  call   *%rax
  nop
  leave
  ret
```

assistant: ```c
void hal_system_start(void *img_start) {
  typedef void jump_fn(void);
  jump_fn *fn = (jump_fn *)img_start;
  fn();
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<hal_system_start>:
  endbr64
  sub    $0x8,%rsp
  call   *%rdi
  add    $0x8,%rsp
  ret
```

assistant: ```c
void hal_system_start(void *img_start) {
  typedef void jump_fn(void);
  jump_fn *fn = (jump_fn *)img_start;
  fn();
}
```
user: What is the c source code of the assembly code below?

```asm
<hal_system_start>:
  endbr64
  jmp    *%rdi
```

assistant: ```c
void hal_system_start(void *img_start) {
  typedef void jump_fn(void);
  jump_fn *fn = (jump_fn *)img_start;
  fn();
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<hal_system_start>:
  endbr64
  jmp    *%rdi
```

assistant: ```c
void hal_system_start(void *img_start) {
  typedef void jump_fn(void);
  jump_fn *fn = (jump_fn *)img_start;
  fn();
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<reverse>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x4(%rbp)
  cmpl   $0x1,-0x4(%rbp)
  jle    L3
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  mov    %al,-0x6(%rbp)
  mov    -0x4(%rbp),%eax
  cltq
  lea    -0x1(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %al,-0x5(%rbp)
  mov    -0x4(%rbp),%eax
  cltq
  lea    -0x1(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,%rdi
  call   <reverse>
  mov    -0x18(%rbp),%rax
  movzbl -0x5(%rbp),%edx
  mov    %dl,(%rax)
  mov    -0x4(%rbp),%eax
  cltq
  lea    -0x1(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  movzbl -0x6(%rbp),%eax
  mov    %al,(%rdx)
  jmp    L13
L3:
  nop
L13:
  leave
  ret
```

assistant: ```c
void reverse(char s[]) {
  char c1, c2;
  int len = strlen(s);
  if (len < 2)
    return;
  c1 = *s;
  c2 = *(s + len - 1);
  *(s + len - 1) = '\0';
  reverse(s + 1);
  *s = c2;
  *(s + len - 1) = c1;
}
```
user: What is the c source code of the assembly code below?

```asm
<reverse>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbx
  call   <strlen@plt>
  cmp    $0x1,%eax
  jle    L2
  movzbl (%rbx),%r12d
  cltq
  lea    -0x1(%rbx,%rax,1),%rbp
  movzbl 0x0(%rbp),%r13d
  movb   $0x0,0x0(%rbp)
  lea    0x1(%rbx),%rdi
  call   <reverse>
  mov    %r13b,(%rbx)
  mov    %r12b,0x0(%rbp)
L2:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
void reverse(char s[]) {
  char c1, c2;
  int len = strlen(s);
  if (len < 2)
    return;
  c1 = *s;
  c2 = *(s + len - 1);
  *(s + len - 1) = '\0';
  reverse(s + 1);
  *s = c2;
  *(s + len - 1) = c1;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<reverse>:
  endbr64
  push   %r15
  push   %r14
  mov    %rdi,%r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  call   <strlen@plt>
  cmp    $0x1,%eax
  jle    L31
  cltq
  movzbl (%r14),%r12d
  lea    0x1(%r14),%rdi
  lea    -0x1(%r14,%rax,1),%rbp
  movzbl 0x0(%rbp),%r13d
  movb   $0x0,0x0(%rbp)
  call   <strlen@plt>
  cmp    $0x1,%eax
  jle    L49
  cltq
  movzbl 0x1(%r14),%edx
  lea    0x2(%r14),%r15
  lea    (%r14,%rax,1),%rbx
  mov    %r15,%rdi
  movzbl (%rbx),%eax
  movb   $0x0,(%rbx)
  mov    %dl,0x22(%rsp)
  mov    %al,0x23(%rsp)
  call   <strlen@plt>
  cmp    $0x1,%eax
  jle    L13
  cltq
  movzbl 0x2(%r14),%ecx
  lea    0x3(%r14),%rsi
  lea    -0x1(%r15,%rax,1),%r15
  mov    %rsi,%rdi
  mov    %rsi,0x8(%rsp)
  movzbl (%r15),%eax
  movb   $0x0,(%r15)
  mov    %cl,0x24(%rsp)
  mov    %al,0x25(%rsp)
  call   <strlen@plt>
  cmp    $0x1,%eax
  jle    L20
  mov    0x8(%rsp),%rsi
  cltq
  movzbl 0x3(%r14),%ecx
  lea    0x4(%r14),%rdi
  mov    %rdi,0x18(%rsp)
  lea    -0x1(%rsi,%rax,1),%rsi
  mov    %cl,0x26(%rsp)
  movzbl (%rsi),%eax
  movb   $0x0,(%rsi)
  mov    %rsi,0x10(%rsp)
  mov    %al,0x8(%rsp)
  call   <strlen@plt>
  mov    0x10(%rsp),%rsi
  cmp    $0x1,%eax
  jle    L16
  mov    0x18(%rsp),%rdi
  cltq
  movzbl 0x4(%r14),%r8d
  mov    %rsi,0x28(%rsp)
  lea    -0x1(%rdi,%rax,1),%rax
  lea    0x5(%r14),%rdi
  mov    %r8b,0x27(%rsp)
  movzbl (%rax),%r9d
  movb   $0x0,(%rax)
  mov    %rax,0x10(%rsp)
  mov    %r9b,0x18(%rsp)
  call   <reverse>
  movzbl 0x18(%rsp),%r9d
  mov    0x10(%rsp),%rax
  movzbl 0x27(%rsp),%r8d
  mov    0x28(%rsp),%rsi
  mov    %r9b,0x4(%r14)
  mov    %r8b,(%rax)
L16:
  movzbl 0x8(%rsp),%eax
  mov    %al,0x3(%r14)
  movzbl 0x26(%rsp),%eax
  mov    %al,(%rsi)
L20:
  movzbl 0x25(%rsp),%eax
  mov    %al,0x2(%r14)
  movzbl 0x24(%rsp),%eax
  mov    %al,(%r15)
L13:
  movzbl 0x23(%rsp),%eax
  mov    %al,0x1(%r14)
  movzbl 0x22(%rsp),%eax
  mov    %al,(%rbx)
L49:
  mov    %r13b,(%r14)
  mov    %r12b,0x0(%rbp)
L31:
  add    $0x38,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void reverse(char s[]) {
  char c1, c2;
  int len = strlen(s);
  if (len < 2)
    return;
  c1 = *s;
  c2 = *(s + len - 1);
  *(s + len - 1) = '\0';
  reverse(s + 1);
  *s = c2;
  *(s + len - 1) = c1;
}
```
user: Translate the below assembly code into C programming language:

```asm
<reverse>:
  endbr64
  push   %r15
  push   %r14
  mov    %rdi,%r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  call   <strlen@plt>
  cmp    $0x1,%eax
  jle    L33
  cltq
  movzbl (%r14),%r12d
  lea    0x1(%r14),%rdi
  lea    -0x1(%r14,%rax,1),%rbp
  movzbl 0x0(%rbp),%r13d
  movb   $0x0,0x0(%rbp)
  call   <strlen@plt>
  cmp    $0x1,%eax
  jle    L43
  cltq
  movzbl 0x1(%r14),%edx
  lea    0x2(%r14),%r15
  lea    (%r14,%rax,1),%rbx
  mov    %r15,%rdi
  movzbl (%rbx),%eax
  movb   $0x0,(%rbx)
  mov    %dl,0x22(%rsp)
  mov    %al,0x23(%rsp)
  call   <strlen@plt>
  cmp    $0x1,%eax
  jle    L47
  cltq
  movzbl 0x2(%r14),%ecx
  lea    0x3(%r14),%rsi
  lea    -0x1(%r15,%rax,1),%r15
  mov    %rsi,%rdi
  mov    %rsi,0x8(%rsp)
  movzbl (%r15),%eax
  movb   $0x0,(%r15)
  mov    %cl,0x24(%rsp)
  mov    %al,0x25(%rsp)
  call   <strlen@plt>
  cmp    $0x1,%eax
  jle    L35
  mov    0x8(%rsp),%rsi
  cltq
  movzbl 0x3(%r14),%ecx
  lea    0x4(%r14),%rdi
  mov    %rdi,0x18(%rsp)
  lea    -0x1(%rsi,%rax,1),%rsi
  mov    %cl,0x26(%rsp)
  movzbl (%rsi),%eax
  movb   $0x0,(%rsi)
  mov    %rsi,0x10(%rsp)
  mov    %al,0x8(%rsp)
  call   <strlen@plt>
  mov    0x10(%rsp),%rsi
  cmp    $0x1,%eax
  jle    L14
  mov    0x18(%rsp),%rdi
  cltq
  movzbl 0x4(%r14),%r8d
  mov    %rsi,0x28(%rsp)
  lea    -0x1(%rdi,%rax,1),%rax
  lea    0x5(%r14),%rdi
  mov    %r8b,0x27(%rsp)
  movzbl (%rax),%r9d
  movb   $0x0,(%rax)
  mov    %rax,0x10(%rsp)
  mov    %r9b,0x18(%rsp)
  call   <reverse>
  movzbl 0x18(%rsp),%r9d
  mov    0x10(%rsp),%rax
  movzbl 0x27(%rsp),%r8d
  mov    0x28(%rsp),%rsi
  mov    %r9b,0x4(%r14)
  mov    %r8b,(%rax)
L14:
  movzbl 0x8(%rsp),%eax
  mov    %al,0x3(%r14)
  movzbl 0x26(%rsp),%eax
  mov    %al,(%rsi)
L35:
  movzbl 0x25(%rsp),%eax
  mov    %al,0x2(%r14)
  movzbl 0x24(%rsp),%eax
  mov    %al,(%r15)
L47:
  movzbl 0x23(%rsp),%eax
  mov    %al,0x1(%r14)
  movzbl 0x22(%rsp),%eax
  mov    %al,(%rbx)
L43:
  mov    %r13b,(%r14)
  mov    %r12b,0x0(%rbp)
L33:
  add    $0x38,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void reverse(char s[]) {
  char c1, c2;
  int len = strlen(s);
  if (len < 2)
    return;
  c1 = *s;
  c2 = *(s + len - 1);
  *(s + len - 1) = '\0';
  reverse(s + 1);
  *s = c2;
  *(s + len - 1) = c1;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<case_starts>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r12
  push   %rbx
  mov    %rdi,%rax
  mov    %rsi,%rdx
L18:
  mov    %rax,%rcx
  lea    0x1(%rcx),%rax
  movzbl (%rcx),%ecx
  lea    -0x41(%rcx),%r12d
  cmp    $0x19,%r12b
  ja     L52
  add    $0x61,%r12d
  jmp    L28
L52:
  add    $0x41,%r12d
L28:
  mov    %rdx,%rcx
  lea    0x1(%rcx),%rdx
  movzbl (%rcx),%ecx
  lea    -0x41(%rcx),%ebx
  cmp    $0x19,%bl
  ja     L33
  add    $0x61,%ebx
  jmp    L19
L33:
  add    $0x41,%ebx
L19:
  test   %bl,%bl
  jne    L6
  mov    $0x1,%eax
  jmp    L66
L6:
  cmp    %bl,%r12b
  je     L18
  mov    $0x0,%eax
L66:
  pop    %rbx
  pop    %r12
  pop    %rbp
  ret
```

assistant: ```c
int case_starts(s, t)
register char *s;
register char *t;
{
  register unsigned char x;
  register unsigned char y;
  for (;;) {
    x = *s++ - 'A';
    if (x <= 'Z' - 'A')
      x += 'a';
    else
      x += 'A';
    y = *t++ - 'A';
    if (y <= 'Z' - 'A')
      y += 'a';
    else
      y += 'A';
    if (!y)
      return 1;
    if (x != y)
      return 0;
  }
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<case_starts>:
  endbr64
  mov    $0x0,%ecx
  jmp    L32
L11:
  add    $0x20,%edx
L18:
  add    $0x1,%rcx
  cmp    %dl,%al
  jne    L19
L32:
  movzbl (%rdi,%rcx,1),%eax
  lea    -0x41(%rax),%r8d
  lea    0x20(%rax),%edx
  cmp    $0x1a,%r8b
  cmovb  %edx,%eax
  movzbl (%rsi,%rcx,1),%edx
  lea    -0x41(%rdx),%r8d
  cmp    $0x19,%r8b
  jbe    L11
  test   %dl,%dl
  jne    L18
  mov    $0x1,%eax
  ret
L19:
  mov    $0x0,%eax
  ret
```

assistant: ```c
int case_starts(s, t)
register char *s;
register char *t;
{
  register unsigned char x;
  register unsigned char y;
  for (;;) {
    x = *s++ - 'A';
    if (x <= 'Z' - 'A')
      x += 'a';
    else
      x += 'A';
    y = *t++ - 'A';
    if (y <= 'Z' - 'A')
      y += 'a';
    else
      y += 'A';
    if (!y)
      return 1;
    if (x != y)
      return 0;
  }
}
```