ylfeng/ReF-Decompile-dataset huggingface dataset:
user: Translate the below assembly code into C programming language:

```asm
<initTable>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    %edx,-0x20(%rbp)
  mov    %ecx,-0x24(%rbp)
  mov    %r8d,-0x28(%rbp)
  movl   $0x0,-0x8(%rbp)
  jmp    L23
L21:
  mov    -0x8(%rbp),%eax
  mov    %eax,-0x4(%rbp)
  jmp    L24
L29:
  mov    -0x1c(%rbp),%edx
  mov    -0x4(%rbp),%eax
  lea    (%rdx,%rax,1),%esi
  mov    -0x24(%rbp),%edx
  mov    -0x8(%rbp),%eax
  lea    (%rdx,%rax,1),%ecx
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x4(%rbp),%eax
  sub    -0x8(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rax,%rdx
  mov    %esi,%eax
  imul   %ecx,%eax
  mov    %eax,(%rdx)
  addl   $0x1,-0x4(%rbp)
L24:
  mov    -0x20(%rbp),%eax
  sub    -0x1c(%rbp),%eax
  cmp    %eax,-0x4(%rbp)
  jle    L29
  addl   $0x1,-0x8(%rbp)
L23:
  mov    -0x28(%rbp),%eax
  sub    -0x24(%rbp),%eax
  cmp    %eax,-0x8(%rbp)
  jle    L21
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void initTable(int **table, int xp, int xk, int yp, int yk) {
  for (int j = 0; j <= yk - yp; j++)
    for (int i = j; i <= xk - xp; i++)
      table[j][i - j] = (xp + i) * (yp + j);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<initTable>:
  endbr64
  sub    %ecx,%r8d
  js     L5
  push   %rbx
  mov    %esi,%r11d
  lea    0x1(%r8),%ebx
  mov    $0x0,%r10d
  sub    %esi,%edx
  jmp    L57
L43:
  lea    (%r11,%r10,1),%esi
  imul   %ecx,%esi
  mov    %edx,%eax
  sub    %r10d,%eax
  lea    0x4(,%rax,4),%r9
  mov    $0x0,%eax
L25:
  mov    (%rdi),%r8
  mov    %esi,(%r8,%rax,1)
  add    $0x4,%rax
  add    %ecx,%esi
  cmp    %r9,%rax
  jne    L25
L53:
  add    $0x1,%r10d
  add    $0x8,%rdi
  add    $0x1,%ecx
  cmp    %ebx,%r10d
  je     L30
L57:
  cmp    %r10d,%edx
  jge    L43
  jmp    L53
L30:
  pop    %rbx
  ret
L5:
  ret
```

assistant: ```c
void initTable(int **table, int xp, int xk, int yp, int yk) {
  for (int j = 0; j <= yk - yp; j++)
    for (int i = j; i <= xk - xp; i++)
      table[j][i - j] = (xp + i) * (yp + j);
}
```
user: What is the c source code of the assembly code below:

```asm
<initTable>:
  endbr64
  sub    %ecx,%r8d
  js     L33
  push   %rbx
  mov    %rdi,%r10
  mov    %esi,%r11d
  sub    %esi,%edx
  movslq %r8d,%rbx
  xor    %r9d,%r9d
  nopl   0x0(%rax,%rax,1)
L17:
  cmp    %r9d,%edx
  jl     L3
  mov    (%r10,%r9,8),%rdi
  mov    %edx,%r8d
  lea    (%r11,%r9,1),%esi
  sub    %r9d,%r8d
  imul   %ecx,%esi
  lea    0x4(%rdi),%rax
  lea    (%rax,%r8,4),%r8
  jmp    L42
L27:
  add    $0x4,%rax
L42:
  mov    %esi,(%rdi)
  add    %ecx,%esi
  mov    %rax,%rdi
  cmp    %r8,%rax
  jne    L27
L3:
  lea    0x1(%r9),%rax
  add    $0x1,%ecx
  cmp    %rbx,%r9
  je     L30
  mov    %rax,%r9
  jmp    L17
  nopl   0x0(%rax)
L30:
  pop    %rbx
  ret
L33:
  ret
```

assistant: ```c
void initTable(int **table, int xp, int xk, int yp, int yk) {
  for (int j = 0; j <= yk - yp; j++)
    for (int i = j; i <= xk - xp; i++)
      table[j][i - j] = (xp + i) * (yp + j);
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<initTable>:
  endbr64
  sub    %ecx,%r8d
  js     L98
  mov    %ecx,%r10d
  mov    %edx,%ecx
  mov    %rdi,%r9
  mov    %esi,%edi
  sub    %esi,%ecx
  jns    L55
  ret
  nopl   0x0(%rax)
L55:
  cmp    %r8d,%ecx
  movd   %esi,%xmm7
  push   %r14
  mov    $0x1,%r11d
  movdqa D9(%rip),%xmm5
  push   %r13
  cmovle %ecx,%r8d
  pshufd $0x0,%xmm7,%xmm6
  push   %r12
  xor    %edx,%edx
  push   %rbp
  push   %rbx
  lea    0x1(%rcx),%ebx
  nopl   0x0(%rax,%rax,1)
L76:
  mov    %ebx,%r13d
  mov    %ecx,%eax
  mov    (%r9,%rdx,8),%rsi
  mov    %edx,%r12d
  sub    %edx,%r13d
  cmp    %edx,%ecx
  lea    (%r10,%rdx,1),%ebp
  cmovl  %r11d,%r13d
  sub    %edx,%eax
  cmp    $0x2,%eax
  jbe    L39
  cmp    %edx,%ecx
  jl     L39
  lea    0x2(%r12),%r14d
  lea    0x1(%r12),%eax
  movd   %r12d,%xmm2
  movd   %r14d,%xmm0
  lea    0x3(%r12),%r14d
  movd   %r14d,%xmm7
  mov    %r13d,%r14d
  punpckldq %xmm7,%xmm0
  movd   %eax,%xmm7
  shr    $0x2,%r14d
  mov    %rsi,%rax
  punpckldq %xmm7,%xmm2
  movd   %ebp,%xmm7
  sub    $0x1,%r14d
  pshufd $0x0,%xmm7,%xmm3
  shl    $0x4,%r14
  punpcklqdq %xmm0,%xmm2
  movdqa %xmm3,%xmm4
  lea    0x10(%rsi,%r14,1),%r14
  psrlq  $0x20,%xmm4
  nopl   0x0(%rax,%rax,1)
L30:
  movdqa %xmm2,%xmm0
  add    $0x10,%rax
  paddd  %xmm5,%xmm2
  paddd  %xmm6,%xmm0
  movdqa %xmm0,%xmm1
  psrlq  $0x20,%xmm0
  pmuludq %xmm3,%xmm1
  pmuludq %xmm4,%xmm0
  pshufd $0x8,%xmm1,%xmm1
  pshufd $0x8,%xmm0,%xmm0
  punpckldq %xmm0,%xmm1
  movups %xmm1,-0x10(%rax)
  cmp    %rax,%r14
  jne    L30
  mov    %r13d,%r14d
  and    $0xfffffffc,%r14d
  lea    (%r14,%r12,1),%eax
  cmp    %r14d,%r13d
  je     L8
L53:
  lea    (%rdi,%rax,1),%r14d
  mov    %eax,%r13d
  imul   %ebp,%r14d
  sub    %r12d,%r13d
  movslq %r13d,%r13
  mov    %r14d,(%rsi,%r13,4)
  lea    0x1(%rax),%r13d
  cmp    %r13d,%ecx
  jl     L8
  mov    %r13d,%r14d
  add    %edi,%r13d
  add    $0x2,%eax
  imul   %ebp,%r13d
  sub    %r12d,%r14d
  movslq %r14d,%r14
  mov    %r13d,(%rsi,%r14,4)
  cmp    %eax,%ecx
  jl     L8
  mov    %eax,%r13d
  add    %edi,%eax
  imul   %ebp,%eax
  sub    %r12d,%r13d
  movslq %r13d,%r12
  mov    %eax,(%rsi,%r12,4)
L8:
  add    $0x1,%rdx
  cmp    %edx,%r8d
  jge    L76
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax)
L39:
  mov    %r12d,%eax
  jmp    L53
L98:
  ret
```

tool_calls: name: unpack_data
arguments: label: D9
datatype: byte[16]

tool: {"D9": [0x04,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x04,0x00,0x00,0x00]}

assistant: ```c
void initTable(int **table, int xp, int xk, int yp, int yk) {
  for (int j = 0; j <= yk - yp; j++)
    for (int i = j; i <= xk - xp; i++)
      table[j][i - j] = (xp + i) * (yp + j);
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  lea    D8(%rip),%rax
  mov    %rax,%rdi
  call   <system@plt>
  mov    $0x0,%eax
  call   <getchar@plt>
  mov    %eax,-0x4(%rbp)
  lea    D6(%rip),%rax
  mov    %rax,%rdi
  call   <system@plt>
  mov    $0x0,%eax
  leave
  ret
```

tool_calls: name: parse_data
arguments: tag: D8
type: string
name: parse_data
arguments: tag: D6
type: string

tool: D8: stty raw

tool: D6: stty cooked

assistant: ```c
int main() {
  int c;
  system("stty raw");
  c = getchar();
  system("stty cooked");
  return 0;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  lea    D14(%rip),%rdi
  call   <system@plt>
  mov    $0x0,%eax
  call   <getchar@plt>
  lea    D12(%rip),%rdi
  call   <system@plt>
  mov    $0x0,%eax
  add    $0x8,%rsp
  ret
```

tool_calls: name: read_data
arguments: data_label: D14
type_guessed: string
name: read_data
arguments: data_label: D12
type_guessed: string

tool: D14: stty raw

tool: D12: stty cooked

assistant: ```c
int main() {
  int c;
  system("stty raw");
  c = getchar();
  system("stty cooked");
  return 0;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  lea    D15(%rip),%rdi
  call   <system@plt>
  xor    %eax,%eax
  call   <getchar@plt>
  lea    D14(%rip),%rdi
  call   <system@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  ret
```

tool_calls: name: parse_data
arguments: data_label: D15
datatype: string
name: parse_data
arguments: data_label: D14
datatype: string

tool: D15: stty raw

tool: D14: stty cooked

assistant: ```c
int main() {
  int c;
  system("stty raw");
  c = getchar();
  system("stty cooked");
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  lea    D7(%rip),%rdi
  call   <system@plt>
  xor    %eax,%eax
  call   <getchar@plt>
  lea    D4(%rip),%rdi
  call   <system@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  ret
```

tool_calls: name: disassemble_data
arguments: data_tag: D7
data_type: string
name: disassemble_data
arguments: data_tag: D4
data_type: string

tool: D7: stty raw

tool: D4: stty cooked

assistant: ```c
int main() {
  int c;
  system("stty raw");
  c = getchar();
  system("stty cooked");
  return 0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<scan_int>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x14(%rbp)
  mov    -0x30(%rbp),%rdx
  mov    -0x28(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strstr@plt>
  mov    %rax,-0x10(%rbp)
  cmpq   $0x0,-0x10(%rbp)
  je     L16
  mov    -0x30(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cltq
  lea    0x1(%rax),%rdx
  mov    -0x10(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  lea    -0x14(%rbp),%rax
  mov    %rax,%rdx
  lea    D7(%rip),%rax
  mov    %rax,%rsi
  mov    %rcx,%rdi
  call   <sscanf@plt>
L16:
  mov    -0x14(%rbp),%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L11
  call   <__stack_chk_fail@plt>
L11:
  leave
  ret
```

tool_calls: name: parse_data
arguments: data_label: D7
data_type: string

tool: D7: %d

assistant: ```c
int scan_int(char *line, char *scan) {
  char *find;
  int res;
  res = 0;
  find = strstr(line, scan);
  if (find) {
    sscanf(find + strlen(scan) + 1, "%d", &res);
  }
  return res;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<scan_int>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rsi,%rbp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  movl   $0x0,0x4(%rsp)
  call   <strstr@plt>
  test   %rax,%rax
  je     L1
  mov    %rax,%rbx
  mov    %rbp,%rdi
  call   <strlen@plt>
  lea    0x4(%rsp),%rdx
  cltq
  lea    0x1(%rbx,%rax,1),%rdi
  lea    D0(%rip),%rsi
  call   <sscanf@plt>
L1:
  mov    0x4(%rsp),%eax
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L14
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
L14:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: label: D0
type_guessed: string

tool: D0: %d

assistant: ```c
int scan_int(char *line, char *scan) {
  char *find;
  int res;
  res = 0;
  find = strstr(line, scan);
  if (find) {
    sscanf(find + strlen(scan) + 1, "%d", &res);
  }
  return res;
}
```
user: Translate the below assembly code into C programming language:

```asm
<scan_int>:
  endbr64
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  movl   $0x0,0x4(%rsp)
  call   <strstr@plt>
  mov    %rax,%rbx
  xor    %eax,%eax
  test   %rbx,%rbx
  je     L2
  mov    %rbp,%rdi
  call   <strlen@plt>
  lea    0x4(%rsp),%rdx
  lea    D5(%rip),%rsi
  cltq
  lea    0x1(%rbx,%rax,1),%rdi
  call   <sscanf@plt>
  mov    0x4(%rsp),%eax
L2:
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L12
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
L12:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: label: D5
datatype: string

tool: D5: %d

assistant: ```c
int scan_int(char *line, char *scan) {
  char *find;
  int res;
  res = 0;
  find = strstr(line, scan);
  if (find) {
    sscanf(find + strlen(scan) + 1, "%d", &res);
  }
  return res;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<scan_int>:
  endbr64
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  movl   $0x0,0x4(%rsp)
  call   <strstr@plt>
  mov    %rax,%rbx
  xor    %eax,%eax
  test   %rbx,%rbx
  je     L2
  mov    %rbp,%rdi
  call   <strlen@plt>
  lea    0x4(%rsp),%rdx
  lea    D9(%rip),%rsi
  cltq
  lea    0x1(%rbx,%rax,1),%rdi
  call   <sscanf@plt>
  mov    0x4(%rsp),%eax
L2:
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L16
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  ret
L16:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: data_label: D9
type_guessed: string

tool: D9: %d

assistant: ```c
int scan_int(char *line, char *scan) {
  char *find;
  int res;
  res = 0;
  find = strstr(line, scan);
  if (find) {
    sscanf(find + strlen(scan) + 1, "%d", &res);
  }
  return res;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<ffs_musl>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x4(%rbp)
  cmpl   $0x0,-0x4(%rbp)
  je     L6
  mov    -0x4(%rbp),%eax
  neg    %eax
  and    -0x4(%rbp),%eax
  imul   $0x76be629,%eax,%eax
  sar    $0x1b,%eax
  cltq
  lea    D8(%rip),%rdx
  movzbl (%rax,%rdx,1),%eax
  movsbl %al,%eax
  add    $0x1,%eax
  jmp    L3
L6:
  mov    $0x0,%eax
L3:
  pop    %rbp
  ret
```

tool_calls: name: parse_data
arguments: tag: D8
type_guessed: string

tool: 

assistant: ```c
uint32_t ffs_musl(uint32_t x) {
  static const char debruijn32[32] = {0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13, 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14};
  return x ? debruijn32[(x & -x) * 0x076be629 >> 27] + 1 : 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<ffs_musl>:
  endbr64
  mov    %edi,%eax
  test   %edi,%edi
  je     L7
  mov    %edi,%edx
  neg    %edx
  and    %edi,%edx
  imul   $0x76be629,%edx,%edx
  sar    $0x1b,%edx
  movslq %edx,%rdx
  lea    D3(%rip),%rax
  movsbl (%rax,%rdx,1),%eax
  add    $0x1,%eax
L7:
  ret
```

tool_calls: name: retrieve_data
arguments: label: D3
datatype: string

tool: 

assistant: ```c
uint32_t ffs_musl(uint32_t x) {
  static const char debruijn32[32] = {0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13, 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14};
  return x ? debruijn32[(x & -x) * 0x076be629 >> 27] + 1 : 0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<ffs_musl>:
  endbr64
  mov    %edi,%eax
  test   %edi,%edi
  je     L0
  mov    %edi,%edx
  lea    D8(%rip),%rax
  neg    %edx
  and    %edi,%edx
  imul   $0x76be629,%edx,%edx
  sar    $0x1b,%edx
  movslq %edx,%rdx
  movsbl (%rax,%rdx,1),%eax
  add    $0x1,%eax
L0:
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D8
type: string

tool: 

assistant: ```c
uint32_t ffs_musl(uint32_t x) {
  static const char debruijn32[32] = {0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13, 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14};
  return x ? debruijn32[(x & -x) * 0x076be629 >> 27] + 1 : 0;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<ffs_musl>:
  endbr64
  mov    %edi,%eax
  test   %edi,%edi
  je     L2
  mov    %edi,%edx
  lea    D7(%rip),%rax
  neg    %edx
  and    %edi,%edx
  imul   $0x76be629,%edx,%edx
  sar    $0x1b,%edx
  movslq %edx,%rdx
  movsbl (%rax,%rdx,1),%eax
  add    $0x1,%eax
L2:
  ret
```

tool_calls: name: disassemble_data
arguments: tag: D7
type: string

tool: 

assistant: ```c
uint32_t ffs_musl(uint32_t x) {
  static const char debruijn32[32] = {0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13, 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14};
  return x ? debruijn32[(x & -x) * 0x076be629 >> 27] + 1 : 0;
}
```
user: Translate the below assembly code into C programming language:

```asm
<crc16>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x24(%rbp)
  mov    -0x24(%rbp),%eax
  mov    %eax,-0x10(%rbp)
  movq   $0x0,-0x8(%rbp)
  jmp    L18
L34:
  mov    -0x8(%rbp),%rax
  lea    0x0(,%rax,8),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rax
  xor    %eax,-0x10(%rbp)
  movl   $0x8,-0xc(%rbp)
  jmp    L23
L36:
  mov    -0x10(%rbp),%eax
  and    $0x1,%eax
  test   %eax,%eax
  je     L21
  sarl   -0x10(%rbp)
  xorl   $0xa001,-0x10(%rbp)
  jmp    L37
L21:
  sarl   -0x10(%rbp)
L37:
  subl   $0x1,-0xc(%rbp)
L23:
  cmpl   $0x0,-0xc(%rbp)
  jne    L36
  addq   $0x1,-0x8(%rbp)
L18:
  mov    -0x8(%rbp),%rax
  cmp    -0x20(%rbp),%rax
  jb     L34
  mov    -0x10(%rbp),%eax
  pop    %rbp
  ret
```

assistant: ```c
uint32_t crc16(const uint8_t *buf, size_t len, uint32_t start) {
  uint32_t crc = start;
  for (size_t pos = 0; pos < len; pos++) {
    crc ^= (uint32_t)buf[pos];
    for (int i = 8; i != 0; i--) {
      if ((crc & 0x0001) != 0) {
        crc >>= 1;
        crc ^= 0xA001;
      } else
        crc >>= 1;
    }
  }
  return crc;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<crc16>:
  endbr64
  mov    %edx,%eax
  test   %rsi,%rsi
  je     L43
  mov    %rdi,%r8
  lea    (%rdi,%rsi,8),%rdi
  jmp    L14
L2:
  add    $0x8,%r8
  cmp    %rdi,%r8
  je     L43
L14:
  xor    (%r8),%eax
  mov    $0x8,%ecx
L28:
  mov    %eax,%edx
  sar    %edx
  xor    $0xa001,%edx
  mov    %eax,%esi
  sar    %esi
  test   $0x1,%al
  mov    %edx,%eax
  cmove  %esi,%eax
  sub    $0x1,%ecx
  jne    L28
  jmp    L2
L43:
  ret
```

assistant: ```c
uint32_t crc16(const uint8_t *buf, size_t len, uint32_t start) {
  uint32_t crc = start;
  for (size_t pos = 0; pos < len; pos++) {
    crc ^= (uint32_t)buf[pos];
    for (int i = 8; i != 0; i--) {
      if ((crc & 0x0001) != 0) {
        crc >>= 1;
        crc ^= 0xA001;
      } else
        crc >>= 1;
    }
  }
  return crc;
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<crc16>:
  endbr64
  mov    %edx,%eax
  test   %rsi,%rsi
  je     L28
  lea    (%rdi,%rsi,8),%r8
  nop
L17:
  xor    (%rdi),%eax
  mov    $0x8,%edx
  nopw   0x0(%rax,%rax,1)
L11:
  mov    %eax,%esi
  sar    %eax
  mov    %eax,%ecx
  and    $0x1,%esi
  xor    $0xa001,%ecx
  test   %esi,%esi
  cmovne %ecx,%eax
  sub    $0x1,%edx
  jne    L11
  add    $0x8,%rdi
  cmp    %r8,%rdi
  jne    L17
L28:
  ret
```

assistant: ```c
uint32_t crc16(const uint8_t *buf, size_t len, uint32_t start) {
  uint32_t crc = start;
  for (size_t pos = 0; pos < len; pos++) {
    crc ^= (uint32_t)buf[pos];
    for (int i = 8; i != 0; i--) {
      if ((crc & 0x0001) != 0) {
        crc >>= 1;
        crc ^= 0xA001;
      } else
        crc >>= 1;
    }
  }
  return crc;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<crc16>:
  endbr64
  mov    %edx,%eax
  test   %rsi,%rsi
  je     L10
  mov    %rdi,%rcx
  lea    (%rdi,%rsi,8),%rdi
  cs nopw 0x0(%rax,%rax,1)
L0:
  xor    (%rcx),%eax
  mov    %eax,%edx
  sar    %edx
  mov    %edx,%esi
  xor    $0xa001,%esi
  test   $0x1,%al
  cmovne %esi,%edx
  mov    %edx,%eax
  sar    %eax
  mov    %eax,%esi
  xor    $0xa001,%esi
  and    $0x1,%edx
  cmovne %esi,%eax
  mov    %eax,%edx
  sar    %edx
  mov    %edx,%esi
  xor    $0xa001,%esi
  test   $0x1,%al
  cmovne %esi,%edx
  mov    %edx,%eax
  sar    %eax
  mov    %eax,%esi
  xor    $0xa001,%esi
  and    $0x1,%edx
  cmovne %esi,%eax
  mov    %eax,%edx
  sar    %edx
  mov    %edx,%esi
  xor    $0xa001,%esi
  test   $0x1,%al
  cmovne %esi,%edx
  mov    %edx,%eax
  sar    %eax
  mov    %eax,%esi
  xor    $0xa001,%esi
  and    $0x1,%edx
  cmovne %esi,%eax
  mov    %eax,%edx
  sar    %edx
  mov    %edx,%esi
  xor    $0xa001,%esi
  test   $0x1,%al
  cmovne %esi,%edx
  mov    %edx,%eax
  sar    %eax
  mov    %eax,%esi
  xor    $0xa001,%esi
  and    $0x1,%edx
  cmovne %esi,%eax
  add    $0x8,%rcx
  cmp    %rcx,%rdi
  jne    L0
L10:
  ret
```

assistant: ```c
uint32_t crc16(const uint8_t *buf, size_t len, uint32_t start) {
  uint32_t crc = start;
  for (size_t pos = 0; pos < len; pos++) {
    crc ^= (uint32_t)buf[pos];
    for (int i = 8; i != 0; i--) {
      if ((crc & 0x0001) != 0) {
        crc >>= 1;
        crc ^= 0xA001;
      } else
        crc >>= 1;
    }
  }
  return crc;
}
```
user: What is the c source code of the assembly code below:

```asm
<ex_trim_internal>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  je     L29
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  je     L56
  mov    -0x8(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x10(%rbp)
  jmp    L8
L52:
  subq   $0x1,-0x10(%rbp)
L8:
  mov    -0x10(%rbp),%rax
  cmp    -0x18(%rbp),%rax
  jb     L4
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L52
L4:
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  movb   $0x0,(%rax)
  jmp    L7
L29:
  nop
  jmp    L7
L56:
  nop
L7:
  leave
  ret
```

assistant: ```c
void ex_trim_internal(char *name) {
  size_t size;
  char *end;
  if (name == 0)
    return;
  size = strlen(name);
  if (size == 0)
    return;
  end = name + size - 1;
  while (end >= name && isspace(*end))
    end--;
  *(end + 1) = '\0';
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<ex_trim_internal>:
  endbr64
  test   %rdi,%rdi
  je     L25
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
  call   <strlen@plt>
  test   %rax,%rax
  je     L12
  lea    -0x1(%rbp,%rax,1),%rbx
  cmp    %rbx,%rbp
  ja     L47
L42:
  movsbl (%rbx),%edi
  call   <isspace@plt>
  test   %rax,%rax
  je     L47
  sub    $0x1,%rbx
  cmp    %rbx,%rbp
  jbe    L42
L47:
  movb   $0x0,0x1(%rbx)
L12:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L25:
  ret
```

assistant: ```c
void ex_trim_internal(char *name) {
  size_t size;
  char *end;
  if (name == 0)
    return;
  size = strlen(name);
  if (size == 0)
    return;
  end = name + size - 1;
  while (end >= name && isspace(*end))
    end--;
  *(end + 1) = '\0';
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<ex_trim_internal>:
  endbr64
  test   %rdi,%rdi
  je     L41
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  sub    $0x8,%rsp
  call   <strlen@plt>
  test   %rax,%rax
  je     L24
  lea    -0x1(%rbp,%rax,1),%rbx
  cmp    %rbx,%rbp
  jbe    L36
  jmp    L22
  nopl   0x0(%rax,%rax,1)
L37:
  sub    $0x1,%rbx
  cmp    %rbx,%rbp
  ja     L22
L36:
  movsbl (%rbx),%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L37
L22:
  movb   $0x0,0x1(%rbx)
L24:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopl   0x0(%rax)
L41:
  ret
```

assistant: ```c
void ex_trim_internal(char *name) {
  size_t size;
  char *end;
  if (name == 0)
    return;
  size = strlen(name);
  if (size == 0)
    return;
  end = name + size - 1;
  while (end >= name && isspace(*end))
    end--;
  *(end + 1) = '\0';
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<ex_trim_internal>:
  endbr64
  test   %rdi,%rdi
  je     L5
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  sub    $0x8,%rsp
  call   <strlen@plt>
  test   %rax,%rax
  je     L26
  lea    -0x1(%rbp,%rax,1),%rbx
  cmp    %rbx,%rbp
  jbe    L6
  jmp    L17
  nopl   0x0(%rax,%rax,1)
L11:
  sub    $0x1,%rbx
  cmp    %rbx,%rbp
  ja     L17
L6:
  movsbl (%rbx),%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L11
L17:
  movb   $0x0,0x1(%rbx)
L26:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
  nopl   0x0(%rax)
L5:
  ret
```

assistant: ```c
void ex_trim_internal(char *name) {
  size_t size;
  char *end;
  if (name == 0)
    return;
  size = strlen(name);
  if (size == 0)
    return;
  end = name + size - 1;
  while (end >= name && isspace(*end))
    end--;
  *(end + 1) = '\0';
}
```
user: What is the c source code of the assembly code below?

```asm
<smprintf>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0xe0,%rsp
  mov    %rdi,-0xd8(%rbp)
  mov    %rsi,-0xa8(%rbp)
  mov    %rdx,-0xa0(%rbp)
  mov    %rcx,-0x98(%rbp)
  mov    %r8,-0x90(%rbp)
  mov    %r9,-0x88(%rbp)
  test   %al,%al
  je     L2
  movaps %xmm0,-0x80(%rbp)
  movaps %xmm1,-0x70(%rbp)
  movaps %xmm2,-0x60(%rbp)
  movaps %xmm3,-0x50(%rbp)
  movaps %xmm4,-0x40(%rbp)
  movaps %xmm5,-0x30(%rbp)
  movaps %xmm6,-0x20(%rbp)
  movaps %xmm7,-0x10(%rbp)
L2:
  mov    %fs:0x28,%rax
  mov    %rax,-0xb8(%rbp)
  xor    %eax,%eax
  mov    -0xd8(%rbp),%rdx
  mov    -0xc8(%rbp),%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <va_start@plt>
  mov    -0xc8(%rbp),%edx
  mov    -0xd8(%rbp),%rcx
  lea    -0xc0(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <vasprintf@plt>
  mov    %eax,-0xc4(%rbp)
  mov    -0xc8(%rbp),%eax
  mov    %eax,%edi
  call   <va_end@plt>
  cmpl   $0x0,-0xc4(%rbp)
  jns    L33
  mov    $0x0,%eax
  jmp    L20
L33:
  mov    -0xc0(%rbp),%rax
L20:
  mov    -0xb8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L5
  call   <__stack_chk_fail@plt>
L5:
  leave
  ret
```

assistant: ```c
char *smprintf(const char *fmt, ...) {
  char *buf;
  va_list ap;
  int ret;
  va_start(ap, fmt);
  ret = vasprintf(&buf, fmt, ap);
  va_end(ap);
  if (ret < 0)
    return NULL;
  return buf;
}
```