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

```asm
<add>:
  endbr64
  cmp    %esi,%edx
  jge    L8
  movslq %edx,%rdx
  addl   $0x1,(%rdi,%rdx,4)
L8:
  ret
```

assistant: ```c
void add(int array[], int len, int val) {
  if (val < len) {
    array[val]++;
  }
}
```
user: Translate the below assembly code into C programming language:

```asm
<get_mtime>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0xc(%rbp),%rdx
  mov    -0x18(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <stat@plt>
  cmp    $0xffffffff,%eax
  je     L25
  mov    -0xc(%rbp),%eax
  jmp    L21
L25:
  mov    $0xffffffff,%eax
L21:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L19
  call   <__stack_chk_fail@plt>
L19:
  leave
  ret
```

assistant: ```c
time_t get_mtime(const char *file) {
  struct stat stat_buf;
  if (stat(file, &stat_buf) != -1)
    return stat_buf.st_mtime;
  return (time_t)-1;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<get_mtime>:
  endbr64
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%rsi
  call   <stat@plt>
  cmp    $0xffffffff,%eax
  je     L13
  mov    0x4(%rsp),%eax
L13:
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L18
  add    $0x18,%rsp
  ret
L18:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
time_t get_mtime(const char *file) {
  struct stat stat_buf;
  if (stat(file, &stat_buf) != -1)
    return stat_buf.st_mtime;
  return (time_t)-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
<get_mtime>:
  endbr64
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%rsi
  call   <stat@plt>
  cmp    $0xffffffff,%eax
  je     L13
  mov    0x4(%rsp),%eax
L13:
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L8
  add    $0x18,%rsp
  ret
L8:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
time_t get_mtime(const char *file) {
  struct stat stat_buf;
  if (stat(file, &stat_buf) != -1)
    return stat_buf.st_mtime;
  return (time_t)-1;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<get_mtime>:
  endbr64
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%rsi
  call   <stat@plt>
  cmp    $0xffffffff,%eax
  je     L16
  mov    0x4(%rsp),%eax
L16:
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L17
  add    $0x18,%rsp
  ret
L17:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
time_t get_mtime(const char *file) {
  struct stat stat_buf;
  if (stat(file, &stat_buf) != -1)
    return stat_buf.st_mtime;
  return (time_t)-1;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<libhl_cmp_keys_int16>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    %rcx,-0x30(%rbp)
  cmpq   $0x3,-0x20(%rbp)
  jbe    L23
  cmpq   $0x3,-0x30(%rbp)
  jbe    L23
  mov    -0x20(%rbp),%rax
  cmp    -0x30(%rbp),%rax
  je     L4
L23:
  mov    -0x20(%rbp),%rax
  mov    %eax,%edx
  mov    -0x30(%rbp),%rax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  jmp    L31
L4:
  mov    -0x18(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,-0x8(%rbp)
  mov    -0x28(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x8(%rbp),%eax
  sub    -0x4(%rbp),%eax
L31:
  pop    %rbp
  ret
```

assistant: ```c
int libhl_cmp_keys_int16(void *k1, size_t k1size, void *k2, size_t k2size) {
  {
    if (k1size < sizeof(int16_t) || k2size < sizeof(int16_t) || k1size != k2size)
      return k1size - k2size;
    int16_t __k1i = *((int16_t *)k1);
    int16_t __k2i = *((int16_t *)k2);
    return __k1i - __k2i;
  };
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<libhl_cmp_keys_int16>:
  endbr64
  cmp    $0x3,%rsi
  setbe  %al
  cmp    %rcx,%rsi
  setne  %r8b
  or     %r8b,%al
  jne    L6
  cmp    $0x3,%rcx
  ja     L1
L6:
  mov    %esi,%eax
  sub    %ecx,%eax
  ret
L1:
  mov    (%rdi),%esi
  mov    %esi,%eax
  sub    (%rdx),%eax
  ret
```

assistant: ```c
int libhl_cmp_keys_int16(void *k1, size_t k1size, void *k2, size_t k2size) {
  {
    if (k1size < sizeof(int16_t) || k2size < sizeof(int16_t) || k1size != k2size)
      return k1size - k2size;
    int16_t __k1i = *((int16_t *)k1);
    int16_t __k2i = *((int16_t *)k2);
    return __k1i - __k2i;
  };
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<libhl_cmp_keys_int16>:
  endbr64
  cmp    $0x3,%rsi
  setbe  %al
  cmp    %rcx,%rsi
  setne  %r8b
  or     %r8b,%al
  jne    L17
  cmp    $0x3,%rcx
  ja     L14
L17:
  mov    %esi,%eax
  sub    %ecx,%eax
  ret
  nopw   0x0(%rax,%rax,1)
L14:
  mov    (%rdi),%eax
  sub    (%rdx),%eax
  ret
```

assistant: ```c
int libhl_cmp_keys_int16(void *k1, size_t k1size, void *k2, size_t k2size) {
  {
    if (k1size < sizeof(int16_t) || k2size < sizeof(int16_t) || k1size != k2size)
      return k1size - k2size;
    int16_t __k1i = *((int16_t *)k1);
    int16_t __k2i = *((int16_t *)k2);
    return __k1i - __k2i;
  };
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<libhl_cmp_keys_int16>:
  endbr64
  cmp    $0x3,%rsi
  setbe  %al
  cmp    %rcx,%rsi
  setne  %r8b
  or     %r8b,%al
  jne    L5
  cmp    $0x3,%rcx
  ja     L6
L5:
  mov    %esi,%eax
  sub    %ecx,%eax
  ret
  nopw   0x0(%rax,%rax,1)
L6:
  mov    (%rdi),%eax
  sub    (%rdx),%eax
  ret
```

assistant: ```c
int libhl_cmp_keys_int16(void *k1, size_t k1size, void *k2, size_t k2size) {
  {
    if (k1size < sizeof(int16_t) || k2size < sizeof(int16_t) || k1size != k2size)
      return k1size - k2size;
    int16_t __k1i = *((int16_t *)k1);
    int16_t __k2i = *((int16_t *)k2);
    return __k1i - __k2i;
  };
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<string_read_file>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  lea    D3(%rip),%rdx
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <fopen@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <string_read_fp@plt>
  leave
  ret
```

tool_calls: name: unpack_data
arguments: tag: D3
type_guessed: string

tool: D3: r

assistant: ```c
const char *string_read_file(const char *filename) {
  FILE *fp = fopen(filename, "r");
  return string_read_fp(fp);
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<string_read_file>:
  endbr64
  sub    $0x8,%rsp
  lea    D8(%rip),%rsi
  call   <fopen@plt>
  mov    %rax,%rdi
  call   <string_read_fp@plt>
  add    $0x8,%rsp
  ret
```

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

tool: D8: r

assistant: ```c
const char *string_read_file(const char *filename) {
  FILE *fp = fopen(filename, "r");
  return string_read_fp(fp);
}
```
user: What is the c source code of the assembly code below:

```asm
<string_read_file>:
  endbr64
  sub    $0x8,%rsp
  lea    D1(%rip),%rsi
  call   <fopen@plt>
  add    $0x8,%rsp
  mov    %rax,%rdi
  jmp    1060 <string_read_fp@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_tag: D1
type_infered: string

tool: D1: r

assistant: ```c
const char *string_read_file(const char *filename) {
  FILE *fp = fopen(filename, "r");
  return string_read_fp(fp);
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<string_read_file>:
  endbr64
  sub    $0x8,%rsp
  lea    D3(%rip),%rsi
  call   <fopen@plt>
  add    $0x8,%rsp
  mov    %rax,%rdi
  jmp    1060 <string_read_fp@plt>
```

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

tool: D3: r

assistant: ```c
const char *string_read_file(const char *filename) {
  FILE *fp = fopen(filename, "r");
  return string_read_fp(fp);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<normalvariate>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  movss  %xmm0,-0x14(%rbp)
  movss  %xmm1,-0x18(%rbp)
L7:
  mov    $0x0,%eax
  call   <rand_uniform@plt>
  cvtsd2ss %xmm0,%xmm0
  movss  %xmm0,-0x10(%rbp)
  mov    $0x0,%eax
  call   <rand_uniform@plt>
  movsd  D23(%rip),%xmm1
  subsd  %xmm0,%xmm1
  pxor   %xmm0,%xmm0
  cvtsd2ss %xmm1,%xmm0
  movss  %xmm0,-0xc(%rbp)
  pxor   %xmm0,%xmm0
  cvtss2sd -0x10(%rbp),%xmm0
  movsd  D32(%rip),%xmm2
  movapd %xmm0,%xmm1
  subsd  %xmm2,%xmm1
  movsd  D28(%rip),%xmm0
  mulsd  %xmm1,%xmm0
  pxor   %xmm1,%xmm1
  cvtss2sd -0xc(%rbp),%xmm1
  divsd  %xmm1,%xmm0
  cvtsd2ss %xmm0,%xmm0
  movss  %xmm0,-0x8(%rbp)
  movss  -0x8(%rbp),%xmm0
  mulss  %xmm0,%xmm0
  movss  D12(%rip),%xmm1
  divss  %xmm1,%xmm0
  movss  %xmm0,-0x4(%rbp)
  mov    -0xc(%rbp),%eax
  movd   %eax,%xmm0
  call   <log@plt>
  movd   %xmm0,%eax
  movss  D44(%rip),%xmm0
  movd   %eax,%xmm1
  xorps  %xmm0,%xmm1
  movss  -0x4(%rbp),%xmm0
  comiss %xmm1,%xmm0
  ja     L7
  movss  -0x8(%rbp),%xmm0
  mulss  -0x18(%rbp),%xmm0
  addss  -0x14(%rbp),%xmm0
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: data_label: D23
type_guessed: f64
name: retrieve_data
arguments: data_label: D32
type_guessed: f64
name: retrieve_data
arguments: data_label: D28
type_guessed: f64
name: retrieve_data
arguments: data_label: D12
type_guessed: f32
name: retrieve_data
arguments: data_label: D44
type_guessed: byte[4]

tool: D23: 1

tool: D32: 0.5

tool: D28: 1.7155277699214135

tool: D12: 4

tool: {"D44": [0x00,0x00,0x00,0x80]}

assistant: ```c
float normalvariate(float mu, float sigma) {
  float u1, u2, z, zz;
  do {
    u1 = rand_uniform();
    u2 = 1.0 - rand_uniform();
    z = 1.7155277699214135 * (u1 - 0.5) / u2;
    zz = z * z / 4.0;
  } while (zz > -log(u2));
  return mu + z * sigma;
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<normalvariate>:
  endbr64
  sub    $0x18,%rsp
  movss  %xmm0,0x8(%rsp)
  movss  %xmm1,0xc(%rsp)
L3:
  mov    $0x0,%eax
  call   <rand_uniform@plt>
  movsd  %xmm0,(%rsp)
  mov    $0x0,%eax
  call   <rand_uniform@plt>
  movsd  D45(%rip),%xmm1
  subsd  %xmm0,%xmm1
  cvtsd2ss %xmm1,%xmm1
  pxor   %xmm0,%xmm0
  cvtsd2ss (%rsp),%xmm0
  cvtss2sd %xmm0,%xmm0
  subsd  D22(%rip),%xmm0
  mulsd  D48(%rip),%xmm0
  pxor   %xmm2,%xmm2
  cvtss2sd %xmm1,%xmm2
  divsd  %xmm2,%xmm0
  pxor   %xmm3,%xmm3
  cvtsd2ss %xmm0,%xmm3
  movss  %xmm3,(%rsp)
  movaps %xmm1,%xmm0
  call   <log@plt>
  xorps  D21(%rip),%xmm0
  movss  (%rsp),%xmm3
  movaps %xmm3,%xmm1
  mulss  %xmm3,%xmm1
  mulss  D9(%rip),%xmm1
  comiss %xmm0,%xmm1
  ja     L3
  movaps %xmm3,%xmm0
  mulss  0xc(%rsp),%xmm0
  addss  0x8(%rsp),%xmm0
  add    $0x18,%rsp
  ret
```

tool_calls: name: parse_data
arguments: data_label: D45
type_infered: f64
name: parse_data
arguments: data_label: D22
type_infered: f64
name: parse_data
arguments: data_label: D48
type_infered: f64
name: parse_data
arguments: data_label: D21
type_infered: byte[16]
name: parse_data
arguments: data_label: D9
type_infered: byte[4]

tool: D45: 1

tool: D22: 0.5

tool: D48: 1.7155277699214135

tool: {"D21": [0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

tool: {"D9": [0x00,0x00,0x80,0x3e]}

assistant: ```c
float normalvariate(float mu, float sigma) {
  float u1, u2, z, zz;
  do {
    u1 = rand_uniform();
    u2 = 1.0 - rand_uniform();
    z = 1.7155277699214135 * (u1 - 0.5) / u2;
    zz = z * z / 4.0;
  } while (zz > -log(u2));
  return mu + z * sigma;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<normalvariate>:
  endbr64
  sub    $0x18,%rsp
  movss  %xmm0,0x8(%rsp)
  movss  %xmm1,0xc(%rsp)
  nopl   0x0(%rax)
L0:
  xor    %eax,%eax
  call   <rand_uniform@plt>
  xor    %eax,%eax
  movsd  %xmm0,(%rsp)
  call   <rand_uniform@plt>
  movsd  (%rsp),%xmm1
  movapd %xmm0,%xmm2
  movsd  D42(%rip),%xmm0
  cvtsd2ss %xmm1,%xmm1
  cvtss2sd %xmm1,%xmm1
  subsd  D11(%rip),%xmm1
  mulsd  D14(%rip),%xmm1
  subsd  %xmm2,%xmm0
  pxor   %xmm2,%xmm2
  cvtsd2ss %xmm0,%xmm0
  cvtss2sd %xmm0,%xmm2
  divsd  %xmm2,%xmm1
  cvtsd2ss %xmm1,%xmm1
  movss  %xmm1,(%rsp)
  call   <log@plt>
  movss  (%rsp),%xmm1
  xorps  D35(%rip),%xmm0
  movaps %xmm1,%xmm2
  mulss  %xmm1,%xmm2
  mulss  D8(%rip),%xmm2
  comiss %xmm0,%xmm2
  ja     L0
  mulss  0xc(%rsp),%xmm1
  movss  0x8(%rsp),%xmm0
  add    $0x18,%rsp
  addss  %xmm1,%xmm0
  ret
```

tool_calls: name: extract_symbolic_data
arguments: tag: D42
type_guessed: f64
name: extract_symbolic_data
arguments: tag: D11
type_guessed: f64
name: extract_symbolic_data
arguments: tag: D14
type_guessed: f64
name: extract_symbolic_data
arguments: tag: D35
type_guessed: byte[16]
name: extract_symbolic_data
arguments: tag: D8
type_guessed: byte[4]

tool: D42: 1

tool: D11: 0.5

tool: D14: 1.7155277699214135

tool: {"D35": [0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

tool: {"D8": [0x00,0x00,0x80,0x3e]}

assistant: ```c
float normalvariate(float mu, float sigma) {
  float u1, u2, z, zz;
  do {
    u1 = rand_uniform();
    u2 = 1.0 - rand_uniform();
    z = 1.7155277699214135 * (u1 - 0.5) / u2;
    zz = z * z / 4.0;
  } while (zz > -log(u2));
  return mu + z * sigma;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<normalvariate>:
  endbr64
  sub    $0x18,%rsp
  movss  %xmm0,0x8(%rsp)
  movss  %xmm1,0xc(%rsp)
  nopl   0x0(%rax)
L4:
  xor    %eax,%eax
  call   <rand_uniform@plt>
  xor    %eax,%eax
  movsd  %xmm0,(%rsp)
  call   <rand_uniform@plt>
  movsd  (%rsp),%xmm1
  movapd %xmm0,%xmm2
  movsd  D16(%rip),%xmm0
  cvtsd2ss %xmm1,%xmm1
  cvtss2sd %xmm1,%xmm1
  subsd  D25(%rip),%xmm1
  mulsd  D12(%rip),%xmm1
  subsd  %xmm2,%xmm0
  pxor   %xmm2,%xmm2
  cvtsd2ss %xmm0,%xmm0
  cvtss2sd %xmm0,%xmm2
  divsd  %xmm2,%xmm1
  cvtsd2ss %xmm1,%xmm1
  movss  %xmm1,(%rsp)
  call   <log@plt>
  movss  (%rsp),%xmm1
  xorps  D42(%rip),%xmm0
  movaps %xmm1,%xmm2
  mulss  %xmm1,%xmm2
  mulss  D39(%rip),%xmm2
  comiss %xmm0,%xmm2
  ja     L4
  mulss  0xc(%rsp),%xmm1
  movss  0x8(%rsp),%xmm0
  add    $0x18,%rsp
  addss  %xmm1,%xmm0
  ret
```

tool_calls: name: extract_symbolic_data
arguments: tag: D16
type_guessed: f64
name: extract_symbolic_data
arguments: tag: D25
type_guessed: f64
name: extract_symbolic_data
arguments: tag: D12
type_guessed: f64
name: extract_symbolic_data
arguments: tag: D42
type_guessed: byte[16]
name: extract_symbolic_data
arguments: tag: D39
type_guessed: byte[4]

tool: D16: 1

tool: D25: 0.5

tool: D12: 1.7155277699214135

tool: {"D42": [0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

tool: {"D39": [0x00,0x00,0x80,0x3e]}

assistant: ```c
float normalvariate(float mu, float sigma) {
  float u1, u2, z, zz;
  do {
    u1 = rand_uniform();
    u2 = 1.0 - rand_uniform();
    z = 1.7155277699214135 * (u1 - 0.5) / u2;
    zz = z * z / 4.0;
  } while (zz > -log(u2));
  return mu + z * sigma;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<multiply219>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  mov    %edi,-0x44(%rbp)
  mov    %esi,-0x48(%rbp)
  mov    %rdx,-0x50(%rbp)
  mov    %rcx,-0x58(%rbp)
  mov    %r8,-0x60(%rbp)
  mov    -0x44(%rbp),%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x38(%rbp)
  movslq %eax,%rdx
  mov    %rdx,%r14
  mov    $0x0,%r15d
  mov    -0x44(%rbp),%edx
  movslq %edx,%rcx
  sub    $0x1,%rcx
  mov    %rcx,-0x30(%rbp)
  movslq %edx,%rcx
  mov    %rcx,%r12
  mov    $0x0,%r13d
  mov    -0x44(%rbp),%ecx
  movslq %ecx,%rsi
  sub    $0x1,%rsi
  mov    %rsi,-0x28(%rbp)
  movslq %ecx,%rsi
  mov    %rsi,%r10
  mov    $0x0,%r11d
  movl   $0x0,-0x40(%rbp)
  jmp    L20
L19:
  movl   $0x0,-0x3c(%rbp)
  jmp    L35
L37:
  mov    -0x40(%rbp),%esi
  movslq %esi,%rdi
  movslq %eax,%rsi
  imul   %rdi,%rsi
  lea    0x0(,%rsi,4),%rdi
  mov    -0x50(%rbp),%rsi
  add    %rsi,%rdi
  mov    -0x3c(%rbp),%esi
  movslq %esi,%rsi
  mov    (%rdi,%rsi,4),%esi
  imul   -0x48(%rbp),%esi
  mov    %esi,%r9d
  mov    -0x40(%rbp),%esi
  movslq %esi,%rdi
  movslq %edx,%rsi
  imul   %rdi,%rsi
  lea    0x0(,%rsi,4),%rdi
  mov    -0x58(%rbp),%rsi
  add    %rsi,%rdi
  mov    -0x3c(%rbp),%esi
  movslq %esi,%rsi
  mov    (%rdi,%rsi,4),%r8d
  mov    -0x40(%rbp),%esi
  movslq %esi,%rdi
  movslq %ecx,%rsi
  imul   %rdi,%rsi
  lea    0x0(,%rsi,4),%rdi
  mov    -0x60(%rbp),%rsi
  add    %rsi,%rdi
  add    %r9d,%r8d
  mov    -0x3c(%rbp),%esi
  movslq %esi,%rsi
  mov    %r8d,(%rdi,%rsi,4)
  addl   $0x1,-0x3c(%rbp)
L35:
  mov    -0x3c(%rbp),%esi
  cmp    -0x44(%rbp),%esi
  jl     L37
  addl   $0x1,-0x40(%rbp)
L20:
  mov    -0x40(%rbp),%esi
  cmp    -0x44(%rbp),%esi
  jl     L19
  nop
  nop
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
```

assistant: ```c
void multiply219(int n, int a, int tab1[n][n], int tab2[n][n], int tab3[n][n]) {
  int i, j, k;
  for (i = 0; i < n; i++) {
    for (j = 0; j < n; j++) {
      tab3[i][j] = a * tab1[i][j] + tab2[i][j];
    }
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<multiply219>:
  endbr64
  test   %edi,%edi
  jle    L20
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %edi,%ebx
  mov    %esi,%r10d
  movslq %edi,%r12
  shl    $0x2,%r12
  mov    %rdx,%rbp
  mov    $0x0,%r13d
  mov    %edi,%r11d
L0:
  mov    %rbp,%r9
  mov    %rcx,%rdi
  mov    %r8,%rsi
  mov    $0x0,%eax
L22:
  mov    %r10d,%edx
  imul   (%r9,%rax,4),%edx
  add    (%rdi,%rax,4),%edx
  mov    %edx,(%rsi,%rax,4)
  add    $0x1,%rax
  cmp    %rax,%r11
  jne    L22
  add    $0x1,%r13d
  add    %r12,%rbp
  add    %r12,%rcx
  add    %r12,%r8
  cmp    %r13d,%ebx
  jne    L0
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L20:
  ret
```

assistant: ```c
void multiply219(int n, int a, int tab1[n][n], int tab2[n][n], int tab3[n][n]) {
  int i, j, k;
  for (i = 0; i < n; i++) {
    for (j = 0; j < n; j++) {
      tab3[i][j] = a * tab1[i][j] + tab2[i][j];
    }
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<multiply219>:
  endbr64
  test   %edi,%edi
  jle    L21
  movslq %edi,%r10
  push   %rbx
  mov    %esi,%r9d
  xor    %r11d,%r11d
  lea    0x0(,%r10,4),%rbx
  nopw   0x0(%rax,%rax,1)
L7:
  xor    %eax,%eax
  nopw   0x0(%rax,%rax,1)
L10:
  mov    (%rdx,%rax,4),%esi
  imul   %r9d,%esi
  add    (%rcx,%rax,4),%esi
  mov    %esi,(%r8,%rax,4)
  add    $0x1,%rax
  cmp    %r10,%rax
  jne    L10
  add    $0x1,%r11d
  add    %rbx,%rdx
  add    %rbx,%rcx
  add    %rbx,%r8
  cmp    %r11d,%edi
  jne    L7
  pop    %rbx
  ret
L21:
  ret
```

assistant: ```c
void multiply219(int n, int a, int tab1[n][n], int tab2[n][n], int tab3[n][n]) {
  int i, j, k;
  for (i = 0; i < n; i++) {
    for (j = 0; j < n; j++) {
      tab3[i][j] = a * tab1[i][j] + tab2[i][j];
    }
  }
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<multiply219>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  movslq %edi,%rbp
  push   %rbx
  test   %ebp,%ebp
  jle    L26
  mov    %rbp,%r11
  mov    %esi,%ebx
  lea    0x4(%rdx),%r10
  mov    %r8,%rax
  mov    %r11d,%edx
  mov    %r11d,%esi
  lea    0x4(%rcx),%r9
  shl    $0x2,%rbp
  and    $0xfffffffc,%esi
  shr    $0x2,%edx
  movd   %ebx,%xmm4
  xor    %r12d,%r12d
  lea    0x1(%rsi),%ecx
  lea    0x2(%rsi),%edi
  mov    %esi,-0x24(%rsp)
  movslq %esi,%r13
  lea    -0x1(%rdx),%r8d
  mov    %r11d,%esi
  lea    -0x1(%r11),%edx
  mov    %ecx,-0x20(%rsp)
  pshufd $0x0,%xmm4,%xmm2
  mov    %edi,-0x1c(%rsp)
  add    $0x1,%r8
  movslq %ecx,%r14
  mov    %edx,-0x28(%rsp)
  movdqa %xmm2,%xmm3
  shl    $0x4,%r8
  movslq %edi,%r15
  mov    %rsi,-0x10(%rsp)
  psrlq  $0x20,%xmm3
  nopl   (%rax)
L21:
  mov    %rax,%rdx
  lea    -0x4(%r10),%rcx
  lea    -0x4(%r9),%rsi
  sub    %r10,%rdx
  cmp    $0x8,%rdx
  mov    %rax,%rdx
  seta   %dil
  sub    %r9,%rdx
  cmp    $0x8,%rdx
  seta   %dl
  test   %dl,%dil
  je     L88
  xor    %edx,%edx
  cmpl   $0x2,-0x28(%rsp)
  jbe    L88
  nopl   0x0(%rax)
L6:
  movdqu (%rcx,%rdx,1),%xmm0
  movdqu (%rcx,%rdx,1),%xmm1
  psrlq  $0x20,%xmm0
  pmuludq %xmm2,%xmm1
  pmuludq %xmm3,%xmm0
  pshufd $0x8,%xmm1,%xmm1
  pshufd $0x8,%xmm0,%xmm0
  punpckldq %xmm0,%xmm1
  movdqu (%rsi,%rdx,1),%xmm0
  paddd  %xmm1,%xmm0
  movups %xmm0,(%rax,%rdx,1)
  add    $0x10,%rdx
  cmp    %r8,%rdx
  jne    L6
  cmp    -0x24(%rsp),%r11d
  je     L43
  mov    (%rcx,%r13,4),%edx
  imul   %ebx,%edx
  add    (%rsi,%r13,4),%edx
  mov    %edx,(%rax,%r13,4)
  cmp    -0x20(%rsp),%r11d
  jle    L43
  mov    (%rcx,%r14,4),%edx
  imul   %ebx,%edx
  add    (%rsi,%r14,4),%edx
  mov    %edx,(%rax,%r14,4)
  cmp    -0x1c(%rsp),%r11d
  jle    L43
  mov    (%rcx,%r15,4),%edx
  imul   %ebx,%edx
  add    (%rsi,%r15,4),%edx
  mov    %edx,(%rax,%r15,4)
L43:
  add    $0x1,%r12d
  add    %rbp,%rax
  add    %rbp,%r10
  add    %rbp,%r9
  cmp    %r12d,%r11d
  jne    L21
L26:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  cs nopw 0x0(%rax,%rax,1)
L88:
  mov    %r8,-0x18(%rsp)
  mov    -0x10(%rsp),%r8
  xor    %edx,%edx
  nopl   0x0(%rax)
L19:
  mov    (%rcx,%rdx,4),%edi
  imul   %ebx,%edi
  add    (%rsi,%rdx,4),%edi
  mov    %edi,(%rax,%rdx,4)
  add    $0x1,%rdx
  cmp    %rdx,%r8
  jne    L19
  mov    -0x18(%rsp),%r8
  jmp    L43
```

assistant: ```c
void multiply219(int n, int a, int tab1[n][n], int tab2[n][n], int tab3[n][n]) {
  int i, j, k;
  for (i = 0; i < n; i++) {
    for (j = 0; j < n; j++) {
      tab3[i][j] = a * tab1[i][j] + tab2[i][j];
    }
  }
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<vt_write_hex_4>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  andl   $0xf,-0x14(%rbp)
  cmpl   $0x9,-0x14(%rbp)
  jg     L10
  mov    -0x14(%rbp),%eax
  add    $0x30,%eax
  mov    %eax,-0xc(%rbp)
  jmp    L5
L10:
  mov    -0x14(%rbp),%eax
  add    $0x37,%eax
  mov    %eax,-0xc(%rbp)
L5:
  mov    D4(%rip),%rax
  mov    (%rax),%eax
  lea    -0xc(%rbp),%rcx
  mov    $0x4,%edx
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <write@plt>
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L0
  call   <__stack_chk_fail@plt>
L0:
  leave
  ret
```

assistant: ```c
void vt_write_hex_4(uint8_t value) {
  value &= 0b1111;
  uint8_t ch;
  if (value <= 0x9) {
    ch = (value - 0x0) + '0';
  } else {
    ch = (value - 0xA) + 'A';
  }
  write(STDOUT_FILENO, &ch, sizeof(ch));
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<vt_write_hex_4>:
  endbr64
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  and    $0xf,%edi
  lea    0x30(%rdi),%edx
  lea    0x37(%rdi),%eax
  cmp    $0x9,%edi
  cmovle %edx,%eax
  mov    %eax,0x4(%rsp)
  lea    0x4(%rsp),%rsi
  mov    $0x4,%edx
  mov    D8(%rip),%rax
  mov    (%rax),%edi
  call   <write@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L0
  add    $0x18,%rsp
  ret
L0:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void vt_write_hex_4(uint8_t value) {
  value &= 0b1111;
  uint8_t ch;
  if (value <= 0x9) {
    ch = (value - 0x0) + '0';
  } else {
    ch = (value - 0xA) + 'A';
  }
  write(STDOUT_FILENO, &ch, sizeof(ch));
}
```
user: What is the c source code of the assembly code below?

```asm
<vt_write_hex_4>:
  endbr64
  sub    $0x18,%rsp
  and    $0xf,%edi
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x30(%rdi),%edx
  cmp    $0x9,%edi
  lea    0x37(%rdi),%eax
  cmovle %edx,%eax
  lea    0x4(%rsp),%rsi
  mov    $0x4,%edx
  mov    %eax,0x4(%rsp)
  mov    D0(%rip),%rax
  mov    (%rax),%edi
  call   <write@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L8
  add    $0x18,%rsp
  ret
L8:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void vt_write_hex_4(uint8_t value) {
  value &= 0b1111;
  uint8_t ch;
  if (value <= 0x9) {
    ch = (value - 0x0) + '0';
  } else {
    ch = (value - 0xA) + 'A';
  }
  write(STDOUT_FILENO, &ch, sizeof(ch));
}
```