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

```asm
<ppmWriteFile>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x24(%rbp)
  mov    %ecx,-0x28(%rbp)
  mov    -0x18(%rbp),%rax
  lea    D0(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <fopen@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  jne    L4
  mov    -0x18(%rbp),%rax
  mov    %rax,%rsi
  lea    D6(%rip),%rax
  mov    %rax,%rdi
  call   <error@plt>
L4:
  mov    -0x28(%rbp),%ecx
  mov    -0x24(%rbp),%edx
  mov    -0x20(%rbp),%rsi
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <ppmWrite@plt>
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <fclose@plt>
  nop
  leave
  ret
```

tool_calls: name: parse_data
arguments: data_label: D0
type: string
name: parse_data
arguments: data_label: D6
type: string

tool: D0: wb

tool: D6: (ppmWriteFile) Can't open file named '%s' for writing


assistant: ```c
void ppmWriteFile(char *fname, unsigned char *img, int ncols, int nrows) {
  FILE *fp;
  if ((fp = fopen(fname, "wb")) == NULL)
    error("(ppmWriteFile) Can't open file named '%s' for writing\n", fname);
  ppmWrite(fp, img, ncols, nrows);
  fclose(fp);
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<ppmWriteFile>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbp
  mov    %rsi,%r12
  mov    %edx,%r13d
  mov    %ecx,%r14d
  lea    D18(%rip),%rsi
  call   <fopen@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  je     L19
L11:
  mov    %r14d,%ecx
  mov    %r13d,%edx
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <ppmWrite@plt>
  mov    %rbx,%rdi
  call   <fclose@plt>
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L19:
  mov    %rbp,%rsi
  lea    D16(%rip),%rdi
  call   <error@plt>
  jmp    L11
```

tool_calls: name: extract_symbolic_data
arguments: label: D18
type_guessed: string
name: extract_symbolic_data
arguments: label: D16
type_guessed: string

tool: D18: wb

tool: D16: (ppmWriteFile) Can't open file named '%s' for writing


assistant: ```c
void ppmWriteFile(char *fname, unsigned char *img, int ncols, int nrows) {
  FILE *fp;
  if ((fp = fopen(fname, "wb")) == NULL)
    error("(ppmWriteFile) Can't open file named '%s' for writing\n", fname);
  ppmWrite(fp, img, ncols, nrows);
  fclose(fp);
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<ppmWriteFile>:
  endbr64
  push   %r15
  mov    %ecx,%r15d
  push   %r14
  mov    %edx,%r14d
  push   %r13
  mov    %rsi,%r13
  lea    D15(%rip),%rsi
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  call   <fopen@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L9
L18:
  mov    %rbp,%rdi
  mov    %r15d,%ecx
  mov    %r14d,%edx
  mov    %r13,%rsi
  call   <ppmWrite@plt>
  mov    %rbp,%rdi
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    1080 <fclose@plt>
  nop
L9:
  mov    %r12,%rsi
  lea    D0(%rip),%rdi
  call   <error@plt>
  jmp    L18
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D15
type_guessed: string
name: extract_symbolic_data
arguments: data_tag: D0
type_guessed: string

tool: D15: wb

tool: D0: (ppmWriteFile) Can't open file named '%s' for writing


assistant: ```c
void ppmWriteFile(char *fname, unsigned char *img, int ncols, int nrows) {
  FILE *fp;
  if ((fp = fopen(fname, "wb")) == NULL)
    error("(ppmWriteFile) Can't open file named '%s' for writing\n", fname);
  ppmWrite(fp, img, ncols, nrows);
  fclose(fp);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<ppmWriteFile>:
  endbr64
  push   %r15
  mov    %ecx,%r15d
  push   %r14
  mov    %edx,%r14d
  push   %r13
  mov    %rsi,%r13
  lea    D14(%rip),%rsi
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  call   <fopen@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L19
L9:
  mov    %rbp,%rdi
  mov    %r15d,%ecx
  mov    %r14d,%edx
  mov    %r13,%rsi
  call   <ppmWrite@plt>
  mov    %rbp,%rdi
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    1080 <fclose@plt>
  nop
L19:
  mov    %r12,%rsi
  lea    D15(%rip),%rdi
  call   <error@plt>
  jmp    L9
```

tool_calls: name: retrieve_data
arguments: tag: D14
datatype: string
name: retrieve_data
arguments: tag: D15
datatype: string

tool: D14: wb

tool: D15: (ppmWriteFile) Can't open file named '%s' for writing


assistant: ```c
void ppmWriteFile(char *fname, unsigned char *img, int ncols, int nrows) {
  FILE *fp;
  if ((fp = fopen(fname, "wb")) == NULL)
    error("(ppmWriteFile) Can't open file named '%s' for writing\n", fname);
  ppmWrite(fp, img, ncols, nrows);
  fclose(fp);
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<check_table_size>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x8(%rbp)
  mov    %esi,-0xc(%rbp)
  mov    %rdx,-0x18(%rbp)
  mov    %ecx,-0x10(%rbp)
  mov    -0x18(%rbp),%rax
  mov    (%rax),%eax
  cmp    %eax,-0xc(%rbp)
  jl     L8
  mov    -0x18(%rbp),%rax
  mov    (%rax),%eax
  lea    (%rax,%rax,1),%edx
  mov    -0x18(%rbp),%rax
  mov    %edx,(%rax)
  mov    -0x18(%rbp),%rax
  mov    (%rax),%eax
  imul   -0x10(%rbp),%eax
  mov    %eax,%edx
  mov    -0x8(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <realloc@plt>
  mov    %rax,-0x8(%rbp)
L8:
  mov    -0x8(%rbp),%rax
  leave
  ret
```

assistant: ```c
void *check_table_size(void *cache, int cache_lines, int *cache_size, int element_size) {
  if (cache_lines > (*cache_size) - 1) {
    (*cache_size) *= 2;
    cache = realloc(cache, (*cache_size) * element_size);
  }
  return cache;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<check_table_size>:
  endbr64
  mov    %rdi,%rax
  mov    %esi,%edi
  mov    (%rdx),%esi
  cmp    %edi,%esi
  jle    L4
  ret
L4:
  sub    $0x8,%rsp
  add    %esi,%esi
  mov    %esi,(%rdx)
  imul   %ecx,%esi
  mov    %rax,%rdi
  call   <realloc@plt>
  add    $0x8,%rsp
  ret
```

assistant: ```c
void *check_table_size(void *cache, int cache_lines, int *cache_size, int element_size) {
  if (cache_lines > (*cache_size) - 1) {
    (*cache_size) *= 2;
    cache = realloc(cache, (*cache_size) * element_size);
  }
  return cache;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<check_table_size>:
  endbr64
  mov    %esi,%r8d
  mov    (%rdx),%esi
  mov    %rdi,%rax
  cmp    %r8d,%esi
  jle    L2
  ret
  nopw   0x0(%rax,%rax,1)
L2:
  add    %esi,%esi
  mov    %esi,(%rdx)
  imul   %ecx,%esi
  jmp    1050 <realloc@plt>
```

assistant: ```c
void *check_table_size(void *cache, int cache_lines, int *cache_size, int element_size) {
  if (cache_lines > (*cache_size) - 1) {
    (*cache_size) *= 2;
    cache = realloc(cache, (*cache_size) * element_size);
  }
  return cache;
}
```
user: What is the c source code of the assembly code below:

```asm
<check_table_size>:
  endbr64
  mov    %esi,%r8d
  mov    (%rdx),%esi
  mov    %rdi,%rax
  cmp    %r8d,%esi
  jle    L9
  ret
  nopw   0x0(%rax,%rax,1)
L9:
  add    %esi,%esi
  mov    %esi,(%rdx)
  imul   %ecx,%esi
  jmp    1050 <realloc@plt>
```

assistant: ```c
void *check_table_size(void *cache, int cache_lines, int *cache_size, int element_size) {
  if (cache_lines > (*cache_size) - 1) {
    (*cache_size) *= 2;
    cache = realloc(cache, (*cache_size) * element_size);
  }
  return cache;
}
```
user: Translate the below assembly code into C programming language:

```asm
<__getrnge>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    %rdx,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x18(%rbp)
  movzbl (%rax),%eax
  movsbl %al,%eax
  movzbl %al,%edx
  mov    -0x8(%rbp),%rax
  mov    %edx,(%rax)
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0xff,%al
  jne    L4
  mov    -0x10(%rbp),%rax
  movl   $0x4e20,(%rax)
  jmp    L14
L4:
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  movzbl %al,%edx
  mov    -0x8(%rbp),%rax
  mov    (%rax),%eax
  sub    %eax,%edx
  mov    -0x10(%rbp),%rax
  mov    %edx,(%rax)
L14:
  mov    $0x1,%eax
  pop    %rbp
  ret
```

assistant: ```c
__getrnge(i, j, k) int *i, *j;
char *k;
{
  *i = (*k++ & 0377);
  if (*k == -1)
    *j = 20000;
  else
    *j = ((*k & 0377) - *i);
  return (1);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<__getrnge>:
  endbr64
  movzbl (%rdx),%ecx
  mov    %ecx,(%rdi)
  movzbl 0x1(%rdx),%edx
  movzbl %dl,%eax
  sub    %ecx,%eax
  cmp    $0xff,%dl
  mov    $0x4e20,%edx
  cmove  %edx,%eax
  mov    %eax,(%rsi)
  mov    $0x1,%eax
  ret
```

assistant: ```c
__getrnge(i, j, k) int *i, *j;
char *k;
{
  *i = (*k++ & 0377);
  if (*k == -1)
    *j = 20000;
  else
    *j = ((*k & 0377) - *i);
  return (1);
}
```
user: What is the c source code of the assembly code below?

```asm
<__getrnge>:
  endbr64
  movzbl (%rdx),%ecx
  mov    %ecx,(%rdi)
  movzbl 0x1(%rdx),%eax
  mov    %eax,%edx
  sub    %ecx,%eax
  cmp    $0xff,%dl
  mov    $0x4e20,%edx
  cmove  %edx,%eax
  mov    %eax,(%rsi)
  mov    $0x1,%eax
  ret
```

assistant: ```c
__getrnge(i, j, k) int *i, *j;
char *k;
{
  *i = (*k++ & 0377);
  if (*k == -1)
    *j = 20000;
  else
    *j = ((*k & 0377) - *i);
  return (1);
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<__getrnge>:
  endbr64
  movzbl (%rdx),%ecx
  mov    %ecx,(%rdi)
  movzbl 0x1(%rdx),%eax
  mov    %eax,%edx
  sub    %ecx,%eax
  cmp    $0xff,%dl
  mov    $0x4e20,%edx
  cmove  %edx,%eax
  mov    %eax,(%rsi)
  mov    $0x1,%eax
  ret
```

assistant: ```c
__getrnge(i, j, k) int *i, *j;
char *k;
{
  *i = (*k++ & 0377);
  if (*k == -1)
    *j = 20000;
  else
    *j = ((*k & 0377) - *i);
  return (1);
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<shdr_index>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  cmpq   $0x0,-0x28(%rbp)
  je     L8
  cmpq   $0x0,-0x30(%rbp)
  jne    L83
L8:
  mov    $0xffffffff,%eax
  jmp    L18
L83:
  mov    -0x28(%rbp),%rdx
  mov    -0x30(%rbp),%rax
  cmp    %rax,%rdx
  jbe    L39
  mov    $0xffffffff,%eax
  jmp    L18
L39:
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x30(%rbp),%rax
  mov    -0x28(%rbp),%rcx
  sub    %rcx,%rax
  mov    %rax,%rdx
  mov    -0x10(%rbp),%rax
  mov    (%rax),%rcx
  mov    %rdx,%rax
  sub    %rcx,%rax
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  jns    L78
  mov    $0xffffffff,%eax
  jmp    L18
L78:
  mov    -0x10(%rbp),%rax
  mov    0x8(%rax),%rcx
  mov    -0x8(%rbp),%rax
  cqto
  idiv   %rcx
  mov    %rdx,%rax
  test   %rax,%rax
  je     L67
  mov    $0xffffffff,%eax
  jmp    L18
L67:
  mov    -0x10(%rbp),%rax
  mov    0x8(%rax),%rsi
  mov    -0x8(%rbp),%rax
  cqto
  idiv   %rsi
  mov    %eax,-0x14(%rbp)
  mov    -0x10(%rbp),%rax
  mov    0x10(%rax),%eax
  cmp    %eax,-0x14(%rbp)
  jl     L41
  mov    $0xffffffff,%eax
  jmp    L18
L41:
  mov    -0x14(%rbp),%eax
L18:
  pop    %rbp
  ret
```

assistant: ```c
int shdr_index(char *elf, Elf64_Shdr *shdr) {
  if (!elf || !shdr)
    return -1;
  if ((unsigned long long)elf > (unsigned long long)shdr)
    return -1;
  Elf64_Ehdr *ehdr;
  ehdr = (Elf64_Ehdr *)elf;
  long long addr;
  addr = (unsigned long long)shdr - (unsigned long long)elf - ehdr->e_shoff;
  if (addr < 0)
    return -1;
  if (addr % ehdr->e_shentsize)
    return -1;
  int ind;
  ind = addr / ehdr->e_shentsize;
  if (ind >= ehdr->e_shnum)
    return -1;
  return ind;
}
```
user: Translate the below assembly code into C programming language:

```asm
<shdr_index>:
  endbr64
  mov    %rsi,%rax
  test   %rdi,%rdi
  je     L0
  test   %rsi,%rsi
  je     L0
  cmp    %rsi,%rdi
  ja     L3
  mov    %rdi,%rdx
  add    (%rdi),%rdx
  sub    %rdx,%rax
  mov    %rax,%rsi
  js     L19
  mov    0x8(%rdi),%rcx
  cqto
  idiv   %rcx
  test   %rdx,%rdx
  jne    L27
  mov    %rsi,%rax
  cqto
  idiv   %rcx
  cmp    %eax,0x10(%rdi)
  mov    $0xffffffff,%edx
  cmovle %edx,%eax
  ret
L0:
  mov    $0xffffffff,%eax
  ret
L3:
  mov    $0xffffffff,%eax
  ret
L19:
  mov    $0xffffffff,%eax
  ret
L27:
  mov    $0xffffffff,%eax
  ret
```

assistant: ```c
int shdr_index(char *elf, Elf64_Shdr *shdr) {
  if (!elf || !shdr)
    return -1;
  if ((unsigned long long)elf > (unsigned long long)shdr)
    return -1;
  Elf64_Ehdr *ehdr;
  ehdr = (Elf64_Ehdr *)elf;
  long long addr;
  addr = (unsigned long long)shdr - (unsigned long long)elf - ehdr->e_shoff;
  if (addr < 0)
    return -1;
  if (addr % ehdr->e_shentsize)
    return -1;
  int ind;
  ind = addr / ehdr->e_shentsize;
  if (ind >= ehdr->e_shnum)
    return -1;
  return ind;
}
```
user: What is the c source code of the assembly code below?

```asm
<shdr_index>:
  endbr64
  mov    %rsi,%rax
  test   %rdi,%rdi
  je     L11
  test   %rsi,%rsi
  je     L11
  cmp    %rsi,%rdi
  ja     L11
  mov    (%rdi),%rdx
  add    %rdi,%rdx
  sub    %rdx,%rax
  js     L11
  cqto
  idivq  0x8(%rdi)
  test   %rdx,%rdx
  jne    L11
  cmp    %eax,0x10(%rdi)
  mov    $0xffffffff,%edx
  cmovle %edx,%eax
  ret
  nopl   0x0(%rax,%rax,1)
L11:
  mov    $0xffffffff,%eax
  ret
```

assistant: ```c
int shdr_index(char *elf, Elf64_Shdr *shdr) {
  if (!elf || !shdr)
    return -1;
  if ((unsigned long long)elf > (unsigned long long)shdr)
    return -1;
  Elf64_Ehdr *ehdr;
  ehdr = (Elf64_Ehdr *)elf;
  long long addr;
  addr = (unsigned long long)shdr - (unsigned long long)elf - ehdr->e_shoff;
  if (addr < 0)
    return -1;
  if (addr % ehdr->e_shentsize)
    return -1;
  int ind;
  ind = addr / ehdr->e_shentsize;
  if (ind >= ehdr->e_shnum)
    return -1;
  return ind;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<shdr_index>:
  endbr64
  mov    %rsi,%rax
  test   %rdi,%rdi
  je     L45
  test   %rsi,%rsi
  je     L45
  cmp    %rsi,%rdi
  ja     L45
  mov    (%rdi),%rdx
  add    %rdi,%rdx
  sub    %rdx,%rax
  js     L45
  cqto
  idivq  0x8(%rdi)
  test   %rdx,%rdx
  jne    L45
  cmp    %eax,0x10(%rdi)
  mov    $0xffffffff,%edx
  cmovle %edx,%eax
  ret
  nopl   0x0(%rax,%rax,1)
L45:
  mov    $0xffffffff,%eax
  ret
```

assistant: ```c
int shdr_index(char *elf, Elf64_Shdr *shdr) {
  if (!elf || !shdr)
    return -1;
  if ((unsigned long long)elf > (unsigned long long)shdr)
    return -1;
  Elf64_Ehdr *ehdr;
  ehdr = (Elf64_Ehdr *)elf;
  long long addr;
  addr = (unsigned long long)shdr - (unsigned long long)elf - ehdr->e_shoff;
  if (addr < 0)
    return -1;
  if (addr % ehdr->e_shentsize)
    return -1;
  int ind;
  ind = addr / ehdr->e_shentsize;
  if (ind >= ehdr->e_shnum)
    return -1;
  return ind;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<test_usefreed>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    $0x64,%edi
  call   <mmalloc@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <mfree@plt>
  mov    -0x8(%rbp),%rax
  add    $0x4,%rax
  movb   $0x6a,(%rax)
  nop
  leave
  ret
```

assistant: ```c
void test_usefreed() {
  char *p = (char *)mmalloc(100);
  mfree(p);
  p[4] = 'j';
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<test_usefreed>:
  endbr64
  push   %rbx
  mov    $0x64,%edi
  call   <mmalloc@plt>
  mov    %rax,%rbx
  mov    %rax,%rdi
  call   <mfree@plt>
  movb   $0x6a,0x4(%rbx)
  pop    %rbx
  ret
```

assistant: ```c
void test_usefreed() {
  char *p = (char *)mmalloc(100);
  mfree(p);
  p[4] = 'j';
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<test_usefreed>:
  endbr64
  push   %rbx
  mov    $0x64,%edi
  call   <mmalloc@plt>
  mov    %rax,%rbx
  mov    %rax,%rdi
  call   <mfree@plt>
  movb   $0x6a,0x4(%rbx)
  pop    %rbx
  ret
```

assistant: ```c
void test_usefreed() {
  char *p = (char *)mmalloc(100);
  mfree(p);
  p[4] = 'j';
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<test_usefreed>:
  endbr64
  push   %rbx
  mov    $0x64,%edi
  call   <mmalloc@plt>
  mov    %rax,%rbx
  mov    %rax,%rdi
  call   <mfree@plt>
  movb   $0x6a,0x4(%rbx)
  pop    %rbx
  ret
```

assistant: ```c
void test_usefreed() {
  char *p = (char *)mmalloc(100);
  mfree(p);
  p[4] = 'j';
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<my_strcpy>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x28(%rbp)
  jne    L29
  mov    -0x8(%rbp),%rax
  jmp    L13
L29:
  mov    -0x10(%rbp),%rax
  cmp    -0x28(%rbp),%rax
  jb     L10
  mov    -0x28(%rbp),%rax
  sub    $0x1,%rax
  mov    %rax,-0x10(%rbp)
L10:
  mov    -0x10(%rbp),%rdx
  mov    -0x20(%rbp),%rcx
  mov    -0x18(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  mov    -0x18(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x8(%rbp),%rax
L13:
  leave
  ret
```

assistant: ```c
size_t my_strcpy(char *buf, const char *src, size_t bufsize) {
  size_t len = strlen(src);
  size_t ret = len;
  if (bufsize == 0)
    return ret;
  if (len >= bufsize)
    len = bufsize - 1;
  (void)memcpy(buf, src, len);
  buf[len] = '\0';
  return ret;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<my_strcpy>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%r13
  mov    %rsi,%r12
  mov    %rdx,%rbp
  mov    %rsi,%rdi
  call   <strlen@plt>
  mov    %rax,%rbx
  test   %rbp,%rbp
  je     L8
  lea    -0x1(%rbp),%rax
  cmp    %rbp,%rbx
  cmovb  %rbx,%rax
  mov    %rax,%rbp
  mov    %rax,%rdx
  mov    %r12,%rsi
  mov    %r13,%rdi
  call   <memcpy@plt>
  movb   $0x0,0x0(%r13,%rbp,1)
L8:
  mov    %rbx,%rax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
size_t my_strcpy(char *buf, const char *src, size_t bufsize) {
  size_t len = strlen(src);
  size_t ret = len;
  if (bufsize == 0)
    return ret;
  if (len >= bufsize)
    len = bufsize - 1;
  (void)memcpy(buf, src, len);
  buf[len] = '\0';
  return ret;
}
```
user: 这段汇编代码用C语言表示是什么样的：

```asm
<my_strcpy>:
  endbr64
  push   %r13
  mov    %rdi,%r13
  mov    %rsi,%rdi
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdx,%rbx
  sub    $0x8,%rsp
  call   <strlen@plt>
  mov    %rax,%r12
  test   %rbx,%rbx
  je     L0
  cmp    %rbx,%r12
  lea    -0x1(%rbx),%rax
  mov    %rbp,%rsi
  mov    %r13,%rdi
  cmovb  %r12,%rax
  mov    %rax,%rbx
  mov    %rax,%rdx
  call   <memcpy@plt>
  movb   $0x0,0x0(%r13,%rbx,1)
L0:
  add    $0x8,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
size_t my_strcpy(char *buf, const char *src, size_t bufsize) {
  size_t len = strlen(src);
  size_t ret = len;
  if (bufsize == 0)
    return ret;
  if (len >= bufsize)
    len = bufsize - 1;
  (void)memcpy(buf, src, len);
  buf[len] = '\0';
  return ret;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<my_strcpy>:
  endbr64
  push   %r13
  mov    %rdi,%r13
  mov    %rsi,%rdi
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  mov    %rdx,%rbx
  sub    $0x8,%rsp
  call   <strlen@plt>
  mov    %rax,%r12
  test   %rbx,%rbx
  je     L5
  cmp    %rbx,%r12
  lea    -0x1(%rbx),%rax
  mov    %rbp,%rsi
  mov    %r13,%rdi
  cmovb  %r12,%rax
  mov    %rax,%rbx
  mov    %rax,%rdx
  call   <memcpy@plt>
  movb   $0x0,0x0(%r13,%rbx,1)
L5:
  add    $0x8,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
size_t my_strcpy(char *buf, const char *src, size_t bufsize) {
  size_t len = strlen(src);
  size_t ret = len;
  if (bufsize == 0)
    return ret;
  if (len >= bufsize)
    len = bufsize - 1;
  (void)memcpy(buf, src, len);
  buf[len] = '\0';
  return ret;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<print_err>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0xd0,%rsp
  mov    %rdi,-0xc8(%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     L6
  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)
L6:
  mov    -0xc8(%rbp),%rdx
  mov    -0xb4(%rbp),%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <va_start@plt>
  mov    D7(%rip),%rax
  mov    (%rax),%eax
  mov    -0xb4(%rbp),%edx
  mov    -0xc8(%rbp),%rcx
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <vfprintf@plt>
  mov    -0xb4(%rbp),%eax
  mov    %eax,%edi
  call   <va_end@plt>
  mov    D7(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <fflush@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  nop
  leave
  ret
```

assistant: ```c
void print_err(const char *msg, ...) {
  va_list ap;
  va_start(ap, msg);
  vfprintf(stderr, msg, ap);
  va_end(ap);
  fflush(stderr);
  exit(1);
}
```
user: Translate the below assembly code into C programming language:

```asm
<print_err>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  mov    %rdi,%rsi
  mov    $0x0,%ebp
  mov    %ebp,%edi
  call   <va_start@plt>
  mov    D9(%rip),%r12
  mov    %ebp,%edx
  mov    %rbx,%rsi
  mov    (%r12),%edi
  call   <vfprintf@plt>
  mov    %ebp,%edi
  call   <va_end@plt>
  mov    (%r12),%edi
  call   <fflush@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
void print_err(const char *msg, ...) {
  va_list ap;
  va_start(ap, msg);
  vfprintf(stderr, msg, ap);
  va_end(ap);
  fflush(stderr);
  exit(1);
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<print_err>:
  endbr64
  push   %r12
  xor    %r12d,%r12d
  mov    %rdi,%rsi
  push   %rbp
  mov    %rdi,%rbp
  mov    %r12d,%edi
  push   %rbx
  call   <va_start@plt>
  mov    D4(%rip),%rbx
  mov    %r12d,%edx
  mov    %rbp,%rsi
  mov    (%rbx),%edi
  call   <vfprintf@plt>
  mov    %r12d,%edi
  call   <va_end@plt>
  mov    (%rbx),%edi
  call   <fflush@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
void print_err(const char *msg, ...) {
  va_list ap;
  va_start(ap, msg);
  vfprintf(stderr, msg, ap);
  va_end(ap);
  fflush(stderr);
  exit(1);
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<print_err>:
  endbr64
  push   %r12
  xor    %r12d,%r12d
  mov    %rdi,%rsi
  push   %rbp
  mov    %rdi,%rbp
  mov    %r12d,%edi
  push   %rbx
  call   <va_start@plt>
  mov    D4(%rip),%rbx
  mov    %r12d,%edx
  mov    %rbp,%rsi
  mov    (%rbx),%edi
  call   <vfprintf@plt>
  mov    %r12d,%edi
  call   <va_end@plt>
  mov    (%rbx),%edi
  call   <fflush@plt>
  mov    $0x1,%edi
  call   <exit@plt>
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
void print_err(const char *msg, ...) {
  va_list ap;
  va_start(ap, msg);
  vfprintf(stderr, msg, ap);
  va_end(ap);
  fflush(stderr);
  exit(1);
}
```