ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<cachebust_filename>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    %rdx,-0x18(%rbp)
  mov    %rcx,-0x20(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <initialize_string@plt>
  mov    -0x10(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <add_to_string@plt>
  mov    -0x8(%rbp),%rax
  lea    D3(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <add_to_string@plt>
  mov    -0x18(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <add_to_string@plt>
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  test   %rax,%rax
  jle    L8
  mov    -0x8(%rbp),%rax
  lea    D3(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <add_to_string@plt>
  mov    -0x20(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <add_to_string@plt>
L8:
  nop
  leave
  ret
```

tool_calls: name: disassemble_data
arguments: data_label: D3
data_type: string

tool: D3: .

assistant: ```c
void cachebust_filename(char *var, const char *key, const char *hash, const char *ending) {
  initialize_string(var);
  add_to_string(var, key);
  add_to_string(var, ".");
  add_to_string(var, hash);
  if (strlen(ending) > 0) {
    add_to_string(var, ".");
    add_to_string(var, ending);
  }
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<cachebust_filename>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbx
  mov    %rsi,%r13
  mov    %rdx,%r12
  mov    %rcx,%rbp
  call   <initialize_string@plt>
  mov    %r13,%rsi
  mov    %rbx,%rdi
  call   <add_to_string@plt>
  lea    D18(%rip),%rsi
  mov    %rbx,%rdi
  call   <add_to_string@plt>
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <add_to_string@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  test   %rax,%rax
  jg     L5
L16:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L5:
  lea    D18(%rip),%rsi
  mov    %rbx,%rdi
  call   <add_to_string@plt>
  mov    %rbp,%rsi
  mov    %rbx,%rdi
  call   <add_to_string@plt>
  jmp    L16
```

tool_calls: name: unpack_data
arguments: label: D18
type_infered: string

tool: D18: .

assistant: ```c
void cachebust_filename(char *var, const char *key, const char *hash, const char *ending) {
  initialize_string(var);
  add_to_string(var, key);
  add_to_string(var, ".");
  add_to_string(var, hash);
  if (strlen(ending) > 0) {
    add_to_string(var, ".");
    add_to_string(var, ending);
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<cachebust_filename>:
  endbr64
  push   %r14
  mov    %rsi,%r14
  push   %r13
  mov    %rdx,%r13
  push   %r12
  mov    %rcx,%r12
  push   %rbp
  mov    %rdi,%rbp
  sub    $0x8,%rsp
  call   <initialize_string@plt>
  mov    %r14,%rsi
  mov    %rbp,%rdi
  lea    D5(%rip),%r14
  call   <add_to_string@plt>
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <add_to_string@plt>
  mov    %rbp,%rdi
  mov    %r13,%rsi
  call   <add_to_string@plt>
  mov    %r12,%rdi
  call   <strlen@plt>
  test   %rax,%rax
  jne    L7
  add    $0x8,%rsp
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax)
L7:
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <add_to_string@plt>
  add    $0x8,%rsp
  mov    %r12,%rsi
  mov    %rbp,%rdi
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  jmp    1080 <add_to_string@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D5
type_infered: string

tool: D5: .

assistant: ```c
void cachebust_filename(char *var, const char *key, const char *hash, const char *ending) {
  initialize_string(var);
  add_to_string(var, key);
  add_to_string(var, ".");
  add_to_string(var, hash);
  if (strlen(ending) > 0) {
    add_to_string(var, ".");
    add_to_string(var, ending);
  }
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<cachebust_filename>:
  endbr64
  push   %r14
  mov    %rsi,%r14
  push   %r13
  mov    %rdx,%r13
  push   %r12
  mov    %rcx,%r12
  push   %rbp
  mov    %rdi,%rbp
  sub    $0x8,%rsp
  call   <initialize_string@plt>
  mov    %r14,%rsi
  mov    %rbp,%rdi
  lea    D3(%rip),%r14
  call   <add_to_string@plt>
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <add_to_string@plt>
  mov    %rbp,%rdi
  mov    %r13,%rsi
  call   <add_to_string@plt>
  mov    %r12,%rdi
  call   <strlen@plt>
  test   %rax,%rax
  jne    L3
  add    $0x8,%rsp
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax)
L3:
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <add_to_string@plt>
  add    $0x8,%rsp
  mov    %r12,%rsi
  mov    %rbp,%rdi
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  jmp    1080 <add_to_string@plt>
```

tool_calls: name: retrieve_data
arguments: tag: D3
type_infered: string

tool: D3: .

assistant: ```c
void cachebust_filename(char *var, const char *key, const char *hash, const char *ending) {
  initialize_string(var);
  add_to_string(var, key);
  add_to_string(var, ".");
  add_to_string(var, hash);
  if (strlen(ending) > 0) {
    add_to_string(var, ".");
    add_to_string(var, ending);
  }
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<modifyHistory>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  je     L32
  mov    -0x28(%rbp),%rax
  mov    (%rax),%eax
  cmp    $0xc7,%eax
  jg     L35
  mov    -0x28(%rbp),%rax
  mov    (%rax),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  lea    (%rdx,%rax,1),%rbx
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <strdup@plt>
  mov    %rax,(%rbx)
  mov    -0x28(%rbp),%rax
  mov    (%rax),%eax
  lea    0x1(%rax),%edx
  mov    -0x28(%rbp),%rax
  mov    %edx,(%rax)
  jmp    L27
L35:
  lea    D2(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    -0x28(%rbp),%rax
  movl   $0x0,(%rax)
  mov    -0x28(%rbp),%rax
  mov    (%rax),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  lea    (%rdx,%rax,1),%rbx
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <strdup@plt>
  mov    %rax,(%rbx)
  jmp    L27
L32:
  lea    D7(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
L27:
  nop
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

tool_calls: name: read_data
arguments: tag: D2
type: string
name: read_data
arguments: tag: D7
type: string

tool: D2: CLI History is full.  Rewriting from beginning.


tool: D7: Command not found!


assistant: ```c
void modifyHistory(char *input, char *clihistory[200], int *clihistorycounter) {
  if (input != NULL) {
    if (*clihistorycounter < 200) {
      clihistory[(int)*clihistorycounter] = strdup(input);
      (*clihistorycounter)++;
    } else {
      printf("CLI History is full.  Rewriting from beginning.\n");
      (*clihistorycounter) = 0;
      clihistory[(int)*clihistorycounter] = strdup(input);
    }
  } else {
    printf("Command not found!\n");
  }
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<modifyHistory>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  test   %rdi,%rdi
  je     L32
  mov    %rdi,%r12
  mov    %rsi,%r13
  mov    %rdx,%rbx
  mov    (%rdx),%ebp
  cmp    $0xc7,%ebp
  jg     L27
  call   <strdup@plt>
  movslq %ebp,%rbp
  mov    %rax,0x0(%r13,%rbp,8)
  addl   $0x1,(%rbx)
L23:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L27:
  lea    D18(%rip),%rdi
  call   <printf@plt>
  movl   $0x0,(%rbx)
  mov    %r12,%rdi
  call   <strdup@plt>
  mov    %rax,0x0(%r13)
  jmp    L23
L32:
  lea    D12(%rip),%rdi
  call   <printf@plt>
  jmp    L23
```

tool_calls: name: unpack_data
arguments: label: D18
type_infered: string
name: unpack_data
arguments: label: D12
type_infered: string

tool: D18: CLI History is full.  Rewriting from beginning.


tool: D12: Command not found!


assistant: ```c
void modifyHistory(char *input, char *clihistory[200], int *clihistorycounter) {
  if (input != NULL) {
    if (*clihistorycounter < 200) {
      clihistory[(int)*clihistorycounter] = strdup(input);
      (*clihistorycounter)++;
    } else {
      printf("CLI History is full.  Rewriting from beginning.\n");
      (*clihistorycounter) = 0;
      clihistory[(int)*clihistorycounter] = strdup(input);
    }
  } else {
    printf("Command not found!\n");
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<modifyHistory>:
  endbr64
  test   %rdi,%rdi
  je     L7
  push   %r13
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rdx,%rbx
  sub    $0x8,%rsp
  movslq (%rdx),%r13
  cmp    $0xc7,%r13d
  jle    L2
  lea    D17(%rip),%rdi
  call   <printf@plt>
  movl   $0x0,(%rbx)
  mov    %rbp,%rdi
  call   <strdup@plt>
  mov    %rax,(%r12)
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L2:
  call   <strdup@plt>
  mov    %rax,(%r12,%r13,8)
  addl   $0x1,(%rbx)
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nop
L7:
  lea    D14(%rip),%rdi
  jmp    1060 <printf@plt>
```

tool_calls: name: retrieve_data
arguments: data_tag: D17
type_infered: string
name: retrieve_data
arguments: data_tag: D14
type_infered: string

tool: D17: CLI History is full.  Rewriting from beginning.


tool: D14: Command not found!


assistant: ```c
void modifyHistory(char *input, char *clihistory[200], int *clihistorycounter) {
  if (input != NULL) {
    if (*clihistorycounter < 200) {
      clihistory[(int)*clihistorycounter] = strdup(input);
      (*clihistorycounter)++;
    } else {
      printf("CLI History is full.  Rewriting from beginning.\n");
      (*clihistorycounter) = 0;
      clihistory[(int)*clihistorycounter] = strdup(input);
    }
  } else {
    printf("Command not found!\n");
  }
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<modifyHistory>:
  endbr64
  test   %rdi,%rdi
  je     L17
  push   %r13
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rdx,%rbx
  sub    $0x8,%rsp
  movslq (%rdx),%r13
  cmp    $0xc7,%r13d
  jle    L10
  lea    D15(%rip),%rdi
  call   <printf@plt>
  movl   $0x0,(%rbx)
  mov    %rbp,%rdi
  call   <strdup@plt>
  mov    %rax,(%r12)
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L10:
  call   <strdup@plt>
  mov    %rax,(%r12,%r13,8)
  addl   $0x1,(%rbx)
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nop
L17:
  lea    D9(%rip),%rdi
  jmp    1060 <printf@plt>
```

tool_calls: name: disassemble_data
arguments: data_tag: D15
type_infered: string
name: disassemble_data
arguments: data_tag: D9
type_infered: string

tool: D15: CLI History is full.  Rewriting from beginning.


tool: D9: Command not found!


assistant: ```c
void modifyHistory(char *input, char *clihistory[200], int *clihistorycounter) {
  if (input != NULL) {
    if (*clihistorycounter < 200) {
      clihistory[(int)*clihistorycounter] = strdup(input);
      (*clihistorycounter)++;
    } else {
      printf("CLI History is full.  Rewriting from beginning.\n");
      (*clihistorycounter) = 0;
      clihistory[(int)*clihistorycounter] = strdup(input);
    }
  } else {
    printf("Command not found!\n");
  }
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<stdlib_strided_dnansumkbn2>:
  endbr64
  test   %rdi,%rdi
  jle    L63
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %rdi,%r14
  mov    %rsi,%rbx
  cmp    $0x1,%rdi
  je     L40
  test   %rdx,%rdx
  je     L40
  mov    $0x0,%eax
  js     L111
L120:
  lea    0x0(,%rdx,8),%r13
  lea    (%rbx,%rax,8),%r12
  pxor   %xmm5,%xmm5
  movsd  %xmm5,0x8(%rsp)
  mov    $0x0,%ebp
  movsd  %xmm5,0x18(%rsp)
  movsd  %xmm5,(%rsp)
  jmp    L114
L40:
  movsd  (%rbx),%xmm0
  call   <stdlib_base_is_nan@plt>
  pxor   %xmm0,%xmm0
  test   %rax,%rax
  jne    L104
  movsd  (%rbx),%xmm0
  jmp    L104
L111:
  mov    $0x1,%eax
  sub    %rdi,%rax
  imul   %rdx,%rax
  jmp    L120
L133:
  movq   %rbx,%xmm0
  subsd  0x10(%rsp),%xmm0
  addsd  (%rsp),%xmm0
  movsd  %xmm0,(%rsp)
  jmp    L1
L51:
  movsd  (%rsp),%xmm0
  movq   %r15,%xmm4
  subsd  %xmm4,%xmm0
  addsd  0x8(%rsp),%xmm0
L94:
  addsd  0x18(%rsp),%xmm0
  movsd  %xmm0,0x18(%rsp)
  mov    %r15,0x8(%rsp)
  movsd  0x10(%rsp),%xmm4
  movsd  %xmm4,(%rsp)
L85:
  add    $0x1,%rbp
  add    %r13,%r12
  cmp    %rbp,%r14
  je     L102
L114:
  mov    (%r12),%rbx
  movq   %rbx,%xmm0
  call   <stdlib_base_is_nan@plt>
  test   %rax,%rax
  jne    L85
  movq   %rbx,%xmm2
  movsd  (%rsp),%xmm0
  addsd  %xmm0,%xmm2
  movsd  %xmm2,0x10(%rsp)
  call   <fabs@plt>
  mov    %rax,%r15
  movq   %rbx,%xmm0
  call   <fabs@plt>
  cmp    %rax,%r15
  jl     L133
  movsd  (%rsp),%xmm0
  subsd  0x10(%rsp),%xmm0
  movq   %rbx,%xmm6
  addsd  %xmm0,%xmm6
  movsd  %xmm6,(%rsp)
L1:
  movsd  (%rsp),%xmm1
  movsd  0x8(%rsp),%xmm0
  addsd  %xmm0,%xmm1
  movq   %xmm1,%r15
  call   <fabs@plt>
  mov    %rax,%rbx
  movsd  (%rsp),%xmm0
  call   <fabs@plt>
  cmp    %rax,%rbx
  jl     L51
  movsd  0x8(%rsp),%xmm7
  movq   %r15,%xmm3
  subsd  %xmm3,%xmm7
  movapd %xmm7,%xmm0
  addsd  (%rsp),%xmm0
  jmp    L94
L102:
  movsd  (%rsp),%xmm0
  addsd  0x8(%rsp),%xmm0
  addsd  0x18(%rsp),%xmm0
L104:
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L63:
  pxor   %xmm0,%xmm0
  ret
```

assistant: ```c
double stdlib_strided_dnansumkbn2(const int64_t N, const double *X, const int64_t stride) {
  double sum;
  double ccs;
  int64_t ix;
  int64_t i;
  double cs;
  double cc;
  double v;
  double t;
  double c;
  if (N <= 0) {
    return 0.0;
  }
  if (N == 1 || stride == 0) {
    if (stdlib_base_is_nan(X[0])) {
      return 0.0;
    }
    return X[0];
  }
  if (stride < 0) {
    ix = (1 - N) * stride;
  } else {
    ix = 0;
  }
  sum = 0.0;
  ccs = 0.0;
  cs = 0.0;
  for (i = 0; i < N; i++) {
    v = X[ix];
    if (!stdlib_base_is_nan(v)) {
      t = sum + v;
      if (fabs(sum) >= fabs(v)) {
        c = (sum - t) + v;
      } else {
        c = (v - t) + sum;
      }
      sum = t;
      t = cs + c;
      if (fabs(cs) >= fabs(c)) {
        cc = (cs - t) + c;
      } else {
        cc = (c - t) + cs;
      }
      cs = t;
      ccs += cc;
    }
    ix += stride;
  }
  return sum + cs + ccs;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<cdiUUIDIsNull>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %rdi,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    $0x10,%edx
  lea    D9(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcmp@plt>
  test   %eax,%eax
  sete   %al
  movzbl %al,%eax
  leave
  ret
```

assistant: ```c
int cdiUUIDIsNull(const unsigned char uuid[16]) {
  static unsigned char uuid_nil[16];
  return !memcmp(uuid, uuid_nil, 16);
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<cdiUUIDIsNull>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x10,%edx
  lea    D1(%rip),%rsi
  call   <memcmp@plt>
  test   %eax,%eax
  sete   %al
  movzbl %al,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int cdiUUIDIsNull(const unsigned char uuid[16]) {
  static unsigned char uuid_nil[16];
  return !memcmp(uuid, uuid_nil, 16);
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<cdiUUIDIsNull>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x10,%edx
  lea    D8(%rip),%rsi
  call   <memcmp@plt>
  test   %eax,%eax
  sete   %al
  add    $0x8,%rsp
  movzbl %al,%eax
  ret
```

assistant: ```c
int cdiUUIDIsNull(const unsigned char uuid[16]) {
  static unsigned char uuid_nil[16];
  return !memcmp(uuid, uuid_nil, 16);
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<cdiUUIDIsNull>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x10,%edx
  lea    D4(%rip),%rsi
  call   <memcmp@plt>
  test   %eax,%eax
  sete   %al
  add    $0x8,%rsp
  movzbl %al,%eax
  ret
```

assistant: ```c
int cdiUUIDIsNull(const unsigned char uuid[16]) {
  static unsigned char uuid_nil[16];
  return !memcmp(uuid, uuid_nil, 16);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<roundup_pow2>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x4(%rbp)
  subl   $0x1,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  sar    %eax
  or     %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  sar    $0x2,%eax
  or     %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  sar    $0x4,%eax
  or     %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  sar    $0x8,%eax
  or     %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  sar    $0x10,%eax
  or     %eax,-0x4(%rbp)
  addl   $0x1,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  pop    %rbp
  ret
```

assistant: ```c
uint32_t roundup_pow2(uint32_t value) {
  --value;
  value |= value >> 1;
  value |= value >> 2;
  value |= value >> 4;
  value |= value >> 8;
  value |= value >> 16;
  ++value;
  return value;
}
```
user: Translate the below assembly code into C programming language:

```asm
<roundup_pow2>:
  endbr64
  sub    $0x1,%edi
  mov    %edi,%eax
  sar    %eax
  or     %edi,%eax
  mov    %eax,%edi
  sar    $0x2,%edi
  or     %eax,%edi
  mov    %edi,%eax
  sar    $0x4,%eax
  or     %edi,%eax
  mov    %eax,%edx
  sar    $0x8,%edx
  or     %eax,%edx
  mov    %edx,%eax
  sar    $0x10,%eax
  or     %edx,%eax
  add    $0x1,%eax
  ret
```

assistant: ```c
uint32_t roundup_pow2(uint32_t value) {
  --value;
  value |= value >> 1;
  value |= value >> 2;
  value |= value >> 4;
  value |= value >> 8;
  value |= value >> 16;
  ++value;
  return value;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<roundup_pow2>:
  endbr64
  sub    $0x1,%edi
  mov    %edi,%eax
  sar    %eax
  or     %edi,%eax
  mov    %eax,%edi
  sar    $0x2,%edi
  or     %eax,%edi
  mov    %edi,%eax
  sar    $0x4,%eax
  or     %edi,%eax
  mov    %eax,%edx
  sar    $0x8,%edx
  or     %eax,%edx
  mov    %edx,%eax
  sar    $0x10,%eax
  or     %edx,%eax
  add    $0x1,%eax
  ret
```

assistant: ```c
uint32_t roundup_pow2(uint32_t value) {
  --value;
  value |= value >> 1;
  value |= value >> 2;
  value |= value >> 4;
  value |= value >> 8;
  value |= value >> 16;
  ++value;
  return value;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<strcasecmp>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x20(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  jmp    L78
L94:
  mov    -0x10(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x10(%rbp)
  movzbl (%rax),%eax
  test   %al,%al
  jne    L104
  mov    $0x0,%eax
  jmp    L55
L104:
  addq   $0x1,-0x8(%rbp)
L78:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%edx
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x40,%al
  jle    L6
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5a,%al
  jg     L6
  mov    $0x1,%eax
  jmp    L159
L6:
  mov    $0x0,%eax
L159:
  shl    $0x5,%eax
  add    %eax,%edx
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%ecx
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x40,%al
  jle    L42
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5a,%al
  jg     L42
  mov    $0x1,%eax
  jmp    L28
L42:
  mov    $0x0,%eax
L28:
  shl    $0x5,%eax
  add    %ecx,%eax
  cmp    %eax,%edx
  je     L94
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%edx
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x40,%al
  jle    L79
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5a,%al
  jg     L79
  mov    $0x1,%eax
  jmp    L80
L79:
  mov    $0x0,%eax
L80:
  shl    $0x5,%eax
  add    %eax,%edx
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%ecx
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x40,%al
  jle    L142
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5a,%al
  jg     L142
  mov    $0x1,%eax
  jmp    L106
L142:
  mov    $0x0,%eax
L106:
  shl    $0x5,%eax
  add    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
L55:
  pop    %rbp
  ret
```

assistant: ```c
int strcasecmp(const char *s1, const char *s2) {
  const uint8_t *us1 = (const uint8_t *)s1, *us2 = (const uint8_t *)s2;
  while (((*us1) + 0x20 * (((*us1) >= 'A') && ((*us1) <= 'Z'))) == ((*us2) + 0x20 * (((*us2) >= 'A') && ((*us2) <= 'Z')))) {
    if (*us1++ == '\0')
      return (0);
    us2++;
  }
  return (((*us1) + 0x20 * (((*us1) >= 'A') && ((*us1) <= 'Z'))) - ((*us2) + 0x20 * (((*us2) >= 'A') && ((*us2) <= 'Z'))));
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<strcasecmp>:
  endbr64
  mov    %rdi,%r8
  mov    %rsi,%r9
  movzbl (%rdi),%edi
  lea    -0x41(%rdi),%eax
  cmp    $0x19,%al
  setbe  %al
  movzbl %al,%eax
  shl    $0x5,%eax
  movsbl %dil,%edx
  add    %edx,%eax
  movzbl (%rsi),%ecx
  lea    -0x41(%rcx),%edx
  cmp    $0x19,%dl
  setbe  %dl
  movzbl %dl,%edx
  shl    $0x5,%edx
  movsbl %cl,%ecx
  add    %ecx,%edx
  cmp    %edx,%eax
  jne    L17
  mov    $0x1,%esi
L10:
  test   %dil,%dil
  je     L23
  movzbl (%r8,%rsi,1),%edi
  lea    -0x41(%rdi),%eax
  cmp    $0x19,%al
  setbe  %al
  movzbl %al,%eax
  shl    $0x5,%eax
  movsbl %dil,%edx
  add    %edx,%eax
  movzbl (%r9,%rsi,1),%ecx
  lea    -0x41(%rcx),%edx
  cmp    $0x19,%dl
  setbe  %dl
  movzbl %dl,%edx
  shl    $0x5,%edx
  movsbl %cl,%ecx
  add    %ecx,%edx
  add    $0x1,%rsi
  cmp    %edx,%eax
  je     L10
L17:
  sub    %edx,%eax
  ret
L23:
  mov    $0x0,%eax
  ret
```

assistant: ```c
int strcasecmp(const char *s1, const char *s2) {
  const uint8_t *us1 = (const uint8_t *)s1, *us2 = (const uint8_t *)s2;
  while (((*us1) + 0x20 * (((*us1) >= 'A') && ((*us1) <= 'Z'))) == ((*us2) + 0x20 * (((*us2) >= 'A') && ((*us2) <= 'Z')))) {
    if (*us1++ == '\0')
      return (0);
    us2++;
  }
  return (((*us1) + 0x20 * (((*us1) >= 'A') && ((*us1) <= 'Z'))) - ((*us2) + 0x20 * (((*us2) >= 'A') && ((*us2) <= 'Z'))));
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<strcasecmp>:
  endbr64
  movsbl (%rdi),%edx
  movsbl (%rsi),%ecx
  mov    %rdi,%r8
  mov    %rsi,%r9
  lea    -0x41(%rdx),%eax
  mov    %edx,%edi
  cmp    $0x19,%al
  setbe  %al
  movzbl %al,%eax
  shl    $0x5,%eax
  add    %edx,%eax
  lea    -0x41(%rcx),%edx
  cmp    $0x19,%dl
  setbe  %dl
  movzbl %dl,%edx
  shl    $0x5,%edx
  add    %ecx,%edx
  cmp    %edx,%eax
  jne    L9
  mov    $0x1,%esi
  jmp    L24
  xchg   %ax,%ax
L1:
  movsbl (%r8,%rsi,1),%edx
  movsbl (%r9,%rsi,1),%ecx
  lea    -0x41(%rdx),%eax
  mov    %edx,%edi
  cmp    $0x19,%al
  setbe  %al
  movzbl %al,%eax
  shl    $0x5,%eax
  add    %edx,%eax
  lea    -0x41(%rcx),%edx
  cmp    $0x19,%dl
  setbe  %dl
  add    $0x1,%rsi
  movzbl %dl,%edx
  shl    $0x5,%edx
  add    %ecx,%edx
  cmp    %edx,%eax
  jne    L9
L24:
  test   %dil,%dil
  jne    L1
  xor    %eax,%eax
  ret
  nopl   (%rax)
L9:
  sub    %edx,%eax
  ret
```

assistant: ```c
int strcasecmp(const char *s1, const char *s2) {
  const uint8_t *us1 = (const uint8_t *)s1, *us2 = (const uint8_t *)s2;
  while (((*us1) + 0x20 * (((*us1) >= 'A') && ((*us1) <= 'Z'))) == ((*us2) + 0x20 * (((*us2) >= 'A') && ((*us2) <= 'Z')))) {
    if (*us1++ == '\0')
      return (0);
    us2++;
  }
  return (((*us1) + 0x20 * (((*us1) >= 'A') && ((*us1) <= 'Z'))) - ((*us2) + 0x20 * (((*us2) >= 'A') && ((*us2) <= 'Z'))));
}
```