ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<hecmw_read_bin_double_arr>:
  endbr64
  test   %esi,%esi
  jle    L13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  mov    %rdx,%rbp
  mov    %esi,%esi
  lea    (%rdi,%rsi,8),%r12
L36:
  mov    %rbp,%rdx
  mov    $0x8,%esi
  mov    %rbx,%rdi
  call   <hecmw_read_bin_value@plt>
  test   %rax,%rax
  jne    L5
  add    $0x8,%rbx
  cmp    %r12,%rbx
  jne    L36
  jmp    L30
L13:
  mov    $0x0,%eax
  ret
L5:
  mov    $0xffffffff,%eax
L30:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
```

assistant: ```c
int hecmw_read_bin_double_arr(double *x, int n, FILE *fp) {
  int i;
  for (i = 0; i < n; i++, x++) {
    if (hecmw_read_bin_value((unsigned char *)x, sizeof(double), fp) != 0)
      return -1;
  }
  return 0;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<hecmw_read_bin_double_arr>:
  endbr64
  test   %esi,%esi
  jle    L22
  movslq %esi,%rsi
  push   %r12
  lea    (%rdi,%rsi,8),%r12
  push   %rbp
  mov    %rdx,%rbp
  push   %rbx
  mov    %rdi,%rbx
  jmp    L35
  nopl   0x0(%rax,%rax,1)
L10:
  add    $0x8,%rbx
  cmp    %r12,%rbx
  je     L4
L35:
  mov    %rbp,%rdx
  mov    $0x8,%esi
  mov    %rbx,%rdi
  call   <hecmw_read_bin_value@plt>
  test   %rax,%rax
  je     L10
  pop    %rbx
  mov    $0xffffffff,%eax
  pop    %rbp
  pop    %r12
  ret
  nopl   0x0(%rax,%rax,1)
L4:
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
L22:
  xor    %eax,%eax
  ret
```

assistant: ```c
int hecmw_read_bin_double_arr(double *x, int n, FILE *fp) {
  int i;
  for (i = 0; i < n; i++, x++) {
    if (hecmw_read_bin_value((unsigned char *)x, sizeof(double), fp) != 0)
      return -1;
  }
  return 0;
}
```
user: Translate the below assembly code into C programming language:

```asm
<hecmw_read_bin_double_arr>:
  endbr64
  test   %esi,%esi
  jle    L22
  movslq %esi,%rsi
  push   %r12
  lea    (%rdi,%rsi,8),%r12
  push   %rbp
  mov    %rdx,%rbp
  push   %rbx
  mov    %rdi,%rbx
  jmp    L5
  nopl   0x0(%rax,%rax,1)
L38:
  add    $0x8,%rbx
  cmp    %r12,%rbx
  je     L12
L5:
  mov    %rbp,%rdx
  mov    $0x8,%esi
  mov    %rbx,%rdi
  call   <hecmw_read_bin_value@plt>
  test   %rax,%rax
  je     L38
  pop    %rbx
  mov    $0xffffffff,%eax
  pop    %rbp
  pop    %r12
  ret
  nopl   0x0(%rax,%rax,1)
L12:
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
L22:
  xor    %eax,%eax
  ret
```

assistant: ```c
int hecmw_read_bin_double_arr(double *x, int n, FILE *fp) {
  int i;
  for (i = 0; i < n; i++, x++) {
    if (hecmw_read_bin_value((unsigned char *)x, sizeof(double), fp) != 0)
      return -1;
  }
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<ZopfliCalculateBlockSize>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x550,%rsp
  mov    %rdi,-0x528(%rbp)
  mov    %rsi,-0x530(%rbp)
  mov    %rdx,-0x538(%rbp)
  mov    %rcx,-0x540(%rbp)
  mov    %r8d,-0x544(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movsd  D1(%rip),%xmm0
  movsd  %xmm0,-0x518(%rbp)
  cmpl   $0x1,-0x544(%rbp)
  je     L33
  cmpl   $0x2,-0x544(%rbp)
  jne    L24
L33:
  mov    $0x1,%eax
  jmp    L32
L24:
  mov    $0x0,%eax
L32:
  mov    %eax,%edi
  call   <assert@plt>
  cmpl   $0x1,-0x544(%rbp)
  jne    L18
  lea    -0x510(%rbp),%rdx
  lea    -0x490(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <GetFixedTree@plt>
  jmp    L23
L18:
  lea    -0x510(%rbp),%r8
  lea    -0x490(%rbp),%rdi
  mov    -0x540(%rbp),%rcx
  mov    -0x538(%rbp),%rdx
  mov    -0x530(%rbp),%rsi
  mov    -0x528(%rbp),%rax
  mov    %r8,%r9
  mov    %rdi,%r8
  mov    %rax,%rdi
  call   <GetDynamicLengths@plt>
  lea    -0x510(%rbp),%rdx
  lea    -0x490(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <CalculateTreeSize@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  movsd  -0x518(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x518(%rbp)
L23:
  mov    -0x540(%rbp),%r8
  mov    -0x538(%rbp),%rdi
  mov    -0x530(%rbp),%rcx
  mov    -0x528(%rbp),%rdx
  lea    -0x510(%rbp),%rsi
  lea    -0x490(%rbp),%rax
  mov    %r8,%r9
  mov    %rdi,%r8
  mov    %rax,%rdi
  call   <CalculateBlockSymbolSize@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  movsd  -0x518(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x518(%rbp)
  movsd  -0x518(%rbp),%xmm0
  movq   %xmm0,%rax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L11
  call   <__stack_chk_fail@plt>
L11:
  movq   %rax,%xmm0
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: data_tag: D1
type: f64

tool: D1: 3

assistant: ```c
double ZopfliCalculateBlockSize(const unsigned short *litlens, const unsigned short *dists, size_t lstart, size_t lend, int btype) {
  unsigned ll_lengths[288];
  unsigned d_lengths[32];
  double result = 3;
  assert(btype == 1 || btype == 2);
  if (btype == 1) {
    GetFixedTree(ll_lengths, d_lengths);
  } else {
    GetDynamicLengths(litlens, dists, lstart, lend, ll_lengths, d_lengths);
    result += CalculateTreeSize(ll_lengths, d_lengths);
  }
  result += CalculateBlockSymbolSize(ll_lengths, d_lengths, litlens, dists, lstart, lend);
  return result;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<ZopfliCalculateBlockSize>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x518,%rsp
  mov    %rdi,%rbp
  mov    %rsi,%r12
  mov    %rdx,%r13
  mov    %rcx,%r14
  mov    %r8d,%ebx
  mov    %fs:0x28,%rax
  mov    %rax,0x508(%rsp)
  xor    %eax,%eax
  lea    -0x1(%r8),%eax
  cmp    $0x1,%eax
  setbe  %dil
  movzbl %dil,%edi
  call   <assert@plt>
  cmp    $0x1,%ebx
  je     L11
  mov    %rsp,%r15
  lea    0x80(%rsp),%rbx
  mov    %r15,%r9
  mov    %rbx,%r8
  mov    %r14,%rcx
  mov    %r13,%rdx
  mov    %r12,%rsi
  mov    %rbp,%rdi
  call   <GetDynamicLengths@plt>
  mov    %r15,%rsi
  mov    %rbx,%rdi
  call   <CalculateTreeSize@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  addsd  D12(%rip),%xmm0
  movq   %xmm0,%rbx
L10:
  mov    %rsp,%rsi
  lea    0x80(%rsp),%rdi
  mov    %r14,%r9
  mov    %r13,%r8
  mov    %r12,%rcx
  mov    %rbp,%rdx
  call   <CalculateBlockSymbolSize@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  movq   %rbx,%xmm1
  addsd  %xmm1,%xmm0
  mov    0x508(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L4
  add    $0x518,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L11:
  mov    %rsp,%rsi
  lea    0x80(%rsp),%rdi
  call   <GetFixedTree@plt>
  mov    D12(%rip),%rbx
  jmp    L10
L4:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_tag: D12
type_infered: f64

tool: D12: 3

assistant: ```c
double ZopfliCalculateBlockSize(const unsigned short *litlens, const unsigned short *dists, size_t lstart, size_t lend, int btype) {
  unsigned ll_lengths[288];
  unsigned d_lengths[32];
  double result = 3;
  assert(btype == 1 || btype == 2);
  if (btype == 1) {
    GetFixedTree(ll_lengths, d_lengths);
  } else {
    GetDynamicLengths(litlens, dists, lstart, lend, ll_lengths, d_lengths);
    result += CalculateTreeSize(ll_lengths, d_lengths);
  }
  result += CalculateBlockSymbolSize(ll_lengths, d_lengths, litlens, dists, lstart, lend);
  return result;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<ZopfliCalculateBlockSize>:
  endbr64
  push   %r15
  push   %r14
  mov    %rcx,%r14
  push   %r13
  mov    %rsi,%r13
  push   %r12
  mov    %rdi,%r12
  xor    %edi,%edi
  push   %rbp
  mov    %rdx,%rbp
  push   %rbx
  mov    %r8d,%ebx
  sub    $0x528,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x518(%rsp)
  xor    %eax,%eax
  lea    -0x1(%r8),%eax
  lea    0x90(%rsp),%r15
  cmp    $0x1,%eax
  setbe  %dil
  call   <assert@plt>
  cmp    $0x1,%ebx
  lea    0x10(%rsp),%rbx
  je     L13
  mov    %rbx,%r9
  mov    %r15,%r8
  mov    %r14,%rcx
  mov    %rbp,%rdx
  mov    %r13,%rsi
  mov    %r12,%rdi
  call   <GetDynamicLengths@plt>
  mov    %rbx,%rsi
  mov    %r15,%rdi
  call   <CalculateTreeSize@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  addsd  D0(%rip),%xmm0
  movsd  %xmm0,0x8(%rsp)
L8:
  mov    %r14,%r9
  mov    %rbp,%r8
  mov    %r13,%rcx
  mov    %r12,%rdx
  mov    %rbx,%rsi
  mov    %r15,%rdi
  call   <CalculateBlockSymbolSize@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  addsd  0x8(%rsp),%xmm0
  mov    0x518(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L19
  add    $0x528,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax,%rax,1)
L13:
  mov    %rbx,%rsi
  mov    %r15,%rdi
  call   <GetFixedTree@plt>
  movsd  D0(%rip),%xmm2
  movsd  %xmm2,0x8(%rsp)
  jmp    L8
L19:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: tag: D0
type_guessed: f64

tool: D0: 3

assistant: ```c
double ZopfliCalculateBlockSize(const unsigned short *litlens, const unsigned short *dists, size_t lstart, size_t lend, int btype) {
  unsigned ll_lengths[288];
  unsigned d_lengths[32];
  double result = 3;
  assert(btype == 1 || btype == 2);
  if (btype == 1) {
    GetFixedTree(ll_lengths, d_lengths);
  } else {
    GetDynamicLengths(litlens, dists, lstart, lend, ll_lengths, d_lengths);
    result += CalculateTreeSize(ll_lengths, d_lengths);
  }
  result += CalculateBlockSymbolSize(ll_lengths, d_lengths, litlens, dists, lstart, lend);
  return result;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<ZopfliCalculateBlockSize>:
  endbr64
  push   %r15
  push   %r14
  mov    %rcx,%r14
  push   %r13
  mov    %rsi,%r13
  push   %r12
  mov    %rdi,%r12
  xor    %edi,%edi
  push   %rbp
  mov    %rdx,%rbp
  push   %rbx
  mov    %r8d,%ebx
  sub    $0x528,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x518(%rsp)
  xor    %eax,%eax
  lea    -0x1(%r8),%eax
  lea    0x90(%rsp),%r15
  cmp    $0x1,%eax
  setbe  %dil
  call   <assert@plt>
  cmp    $0x1,%ebx
  lea    0x10(%rsp),%rbx
  je     L10
  mov    %rbx,%r9
  mov    %r15,%r8
  mov    %r14,%rcx
  mov    %rbp,%rdx
  mov    %r13,%rsi
  mov    %r12,%rdi
  call   <GetDynamicLengths@plt>
  mov    %rbx,%rsi
  mov    %r15,%rdi
  call   <CalculateTreeSize@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  addsd  D2(%rip),%xmm0
  movsd  %xmm0,0x8(%rsp)
L25:
  mov    %r14,%r9
  mov    %rbp,%r8
  mov    %r13,%rcx
  mov    %r12,%rdx
  mov    %rbx,%rsi
  mov    %r15,%rdi
  call   <CalculateBlockSymbolSize@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  addsd  0x8(%rsp),%xmm0
  mov    0x518(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L9
  add    $0x528,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax,%rax,1)
L10:
  mov    %rbx,%rsi
  mov    %r15,%rdi
  call   <GetFixedTree@plt>
  movsd  D2(%rip),%xmm2
  movsd  %xmm2,0x8(%rsp)
  jmp    L25
L9:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_tag: D2
datatype: f64

tool: D2: 3

assistant: ```c
double ZopfliCalculateBlockSize(const unsigned short *litlens, const unsigned short *dists, size_t lstart, size_t lend, int btype) {
  unsigned ll_lengths[288];
  unsigned d_lengths[32];
  double result = 3;
  assert(btype == 1 || btype == 2);
  if (btype == 1) {
    GetFixedTree(ll_lengths, d_lengths);
  } else {
    GetDynamicLengths(litlens, dists, lstart, lend, ll_lengths, d_lengths);
    result += CalculateTreeSize(ll_lengths, d_lengths);
  }
  result += CalculateBlockSymbolSize(ll_lengths, d_lengths, litlens, dists, lstart, lend);
  return result;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<get_current_time_ms>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0x20(%rbp),%rax
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <gettimeofday@plt>
  mov    -0x20(%rbp),%rax
  imul   $0x3e8,%rax,%rax
  mov    %rax,-0x28(%rbp)
  mov    -0x18(%rbp),%rax
  lea    0x1f4(%rax),%rcx
  movabs $0x20c49ba5e353f7cf,%rdx
  mov    %rcx,%rax
  imul   %rdx
  mov    %rdx,%rax
  sar    $0x7,%rax
  sar    $0x3f,%rcx
  mov    %rcx,%rdx
  sub    %rdx,%rax
  add    %rax,-0x28(%rbp)
  mov    -0x28(%rbp),%rax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L7
  call   <__stack_chk_fail@plt>
L7:
  leave
  ret
```

assistant: ```c
long long get_current_time_ms(void) {
  struct timeval tv;
  gettimeofday(&tv, NULL);
  long long result = tv.tv_sec * 1000LL;
  result += (tv.tv_usec + 500LL) / 1000LL;
  return result;
}
```
user: What is the c source code of the assembly code below?

```asm
<get_current_time_ms>:
  endbr64
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  mov    $0x0,%esi
  call   <gettimeofday@plt>
  imul   $0x3e8,(%rsp),%rsi
  mov    0x8(%rsp),%rax
  lea    0x1f4(%rax),%rcx
  movabs $0x20c49ba5e353f7cf,%rdx
  mov    %rcx,%rax
  imul   %rdx
  sar    $0x7,%rdx
  sar    $0x3f,%rcx
  sub    %rcx,%rdx
  lea    (%rdx,%rsi,1),%rax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L9
  add    $0x28,%rsp
  ret
L9:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
long long get_current_time_ms(void) {
  struct timeval tv;
  gettimeofday(&tv, NULL);
  long long result = tv.tv_sec * 1000LL;
  result += (tv.tv_usec + 500LL) / 1000LL;
  return result;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<get_current_time_ms>:
  endbr64
  sub    $0x28,%rsp
  xor    %esi,%esi
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  call   <gettimeofday@plt>
  mov    0x8(%rsp),%rax
  movabs $0x20c49ba5e353f7cf,%rdx
  imul   $0x3e8,(%rsp),%rsi
  lea    0x1f4(%rax),%rcx
  mov    %rcx,%rax
  sar    $0x3f,%rcx
  imul   %rdx
  sar    $0x7,%rdx
  sub    %rcx,%rdx
  lea    (%rdx,%rsi,1),%rax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L0
  add    $0x28,%rsp
  ret
L0:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
long long get_current_time_ms(void) {
  struct timeval tv;
  gettimeofday(&tv, NULL);
  long long result = tv.tv_sec * 1000LL;
  result += (tv.tv_usec + 500LL) / 1000LL;
  return result;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<get_current_time_ms>:
  endbr64
  sub    $0x28,%rsp
  xor    %esi,%esi
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    %rsp,%rdi
  call   <gettimeofday@plt>
  mov    0x8(%rsp),%rax
  movabs $0x20c49ba5e353f7cf,%rdx
  imul   $0x3e8,(%rsp),%rsi
  lea    0x1f4(%rax),%rcx
  mov    %rcx,%rax
  sar    $0x3f,%rcx
  imul   %rdx
  sar    $0x7,%rdx
  sub    %rcx,%rdx
  lea    (%rdx,%rsi,1),%rax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L6
  add    $0x28,%rsp
  ret
L6:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
long long get_current_time_ms(void) {
  struct timeval tv;
  gettimeofday(&tv, NULL);
  long long result = tv.tv_sec * 1000LL;
  result += (tv.tv_usec + 500LL) / 1000LL;
  return result;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<b64_lookup>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,%eax
  mov    %al,-0x4(%rbp)
  cmpb   $0x40,-0x4(%rbp)
  jle    L6
  cmpb   $0x5a,-0x4(%rbp)
  jg     L6
  movzbl -0x4(%rbp),%eax
  sub    $0x41,%eax
  jmp    L10
L6:
  cmpb   $0x60,-0x4(%rbp)
  jle    L97
  cmpb   $0x7a,-0x4(%rbp)
  jg     L97
  movzbl -0x4(%rbp),%eax
  sub    $0x47,%eax
  jmp    L10
L97:
  cmpb   $0x2f,-0x4(%rbp)
  jle    L47
  cmpb   $0x39,-0x4(%rbp)
  jg     L47
  movzbl -0x4(%rbp),%eax
  add    $0x4,%eax
  jmp    L10
L47:
  cmpb   $0x2b,-0x4(%rbp)
  jne    L57
  mov    $0x3e,%eax
  jmp    L10
L57:
  cmpb   $0x2f,-0x4(%rbp)
  jne    L63
  mov    $0x3f,%eax
  jmp    L10
L63:
  mov    $0xffffffff,%eax
L10:
  pop    %rbp
  ret
```

assistant: ```c
unsigned char b64_lookup(char c) {
  if (c >= 'A' && c <= 'Z')
    return c - 'A';
  if (c >= 'a' && c <= 'z')
    return c - 71;
  if (c >= '0' && c <= '9')
    return c + 4;
  if (c == '+')
    return 62;
  if (c == '/')
    return 63;
  return -1;
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<b64_lookup>:
  endbr64
  lea    -0x41(%rdi),%eax
  cmp    $0x19,%al
  jbe    L5
  lea    -0x61(%rdi),%eax
  cmp    $0x19,%al
  jbe    L22
  lea    -0x30(%rdi),%eax
  cmp    $0x9,%al
  jbe    L23
  cmp    $0x2b,%dil
  je     L19
  cmp    $0x2f,%dil
  mov    $0xffffffff,%eax
  mov    $0x3f,%edx
  cmove  %edx,%eax
  ret
L22:
  lea    -0x47(%rdi),%eax
  ret
L23:
  lea    0x4(%rdi),%eax
  ret
L19:
  mov    $0x3e,%eax
L5:
  ret
```

assistant: ```c
unsigned char b64_lookup(char c) {
  if (c >= 'A' && c <= 'Z')
    return c - 'A';
  if (c >= 'a' && c <= 'z')
    return c - 71;
  if (c >= '0' && c <= '9')
    return c + 4;
  if (c == '+')
    return 62;
  if (c == '/')
    return 63;
  return -1;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<b64_lookup>:
  endbr64
  lea    -0x41(%rdi),%eax
  cmp    $0x19,%al
  jbe    L0
  lea    -0x61(%rdi),%eax
  cmp    $0x19,%al
  jbe    L4
  lea    -0x30(%rdi),%eax
  cmp    $0x9,%al
  jbe    L1
  cmp    $0x2b,%dil
  je     L2
  cmp    $0x2f,%dil
  mov    $0x3f,%edx
  mov    $0xffffffff,%eax
  cmove  %edx,%eax
  ret
  nopl   0x0(%rax)
L2:
  mov    $0x3e,%eax
L0:
  ret
  xchg   %ax,%ax
L4:
  lea    -0x47(%rdi),%eax
  ret
  nopl   0x0(%rax)
L1:
  lea    0x4(%rdi),%eax
  ret
```

assistant: ```c
unsigned char b64_lookup(char c) {
  if (c >= 'A' && c <= 'Z')
    return c - 'A';
  if (c >= 'a' && c <= 'z')
    return c - 71;
  if (c >= '0' && c <= '9')
    return c + 4;
  if (c == '+')
    return 62;
  if (c == '/')
    return 63;
  return -1;
}
```
user: Translate the below assembly code into C programming language:

```asm
<b64_lookup>:
  endbr64
  lea    -0x41(%rdi),%eax
  cmp    $0x19,%al
  jbe    L12
  lea    -0x61(%rdi),%eax
  cmp    $0x19,%al
  jbe    L6
  lea    -0x30(%rdi),%eax
  cmp    $0x9,%al
  jbe    L5
  cmp    $0x2b,%dil
  je     L27
  cmp    $0x2f,%dil
  mov    $0x3f,%edx
  mov    $0xffffffff,%eax
  cmove  %edx,%eax
  ret
  nopl   0x0(%rax)
L27:
  mov    $0x3e,%eax
L12:
  ret
  xchg   %ax,%ax
L6:
  lea    -0x47(%rdi),%eax
  ret
  nopl   0x0(%rax)
L5:
  lea    0x4(%rdi),%eax
  ret
```

assistant: ```c
unsigned char b64_lookup(char c) {
  if (c >= 'A' && c <= 'Z')
    return c - 'A';
  if (c >= 'a' && c <= 'z')
    return c - 71;
  if (c >= '0' && c <= '9')
    return c + 4;
  if (c == '+')
    return 62;
  if (c == '/')
    return 63;
  return -1;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<copy_int>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  lea    -0x14(%rbp),%rcx
  lea    -0xc(%rbp),%rax
  mov    $0x4,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  mov    -0xc(%rbp),%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L2
  call   <__stack_chk_fail@plt>
L2:
  leave
  ret
```

assistant: ```c
int64_t copy_int(int64_t x) {
  int64_t y;
  memcpy(&y, &x, sizeof(int64_t));
  return y;
}
```
user: What is the c source code of the assembly code below:

```asm
<copy_int>:
  endbr64
  sub    $0x28,%rsp
  mov    %edi,0xc(%rsp)
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    0xc(%rsp),%rsi
  lea    0x14(%rsp),%rdi
  mov    $0x4,%edx
  call   <memcpy@plt>
  mov    0x14(%rsp),%eax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L0
  add    $0x28,%rsp
  ret
L0:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int64_t copy_int(int64_t x) {
  int64_t y;
  memcpy(&y, &x, sizeof(int64_t));
  return y;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<copy_int>:
  endbr64
  sub    $0x28,%rsp
  mov    $0x4,%edx
  mov    %edi,0xc(%rsp)
  lea    0xc(%rsp),%rsi
  lea    0x14(%rsp),%rdi
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  call   <memcpy@plt>
  mov    0x14(%rsp),%eax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L9
  add    $0x28,%rsp
  ret
L9:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int64_t copy_int(int64_t x) {
  int64_t y;
  memcpy(&y, &x, sizeof(int64_t));
  return y;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<copy_int>:
  endbr64
  sub    $0x28,%rsp
  mov    $0x4,%edx
  mov    %edi,0xc(%rsp)
  lea    0xc(%rsp),%rsi
  lea    0x14(%rsp),%rdi
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  call   <memcpy@plt>
  mov    0x14(%rsp),%eax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L7
  add    $0x28,%rsp
  ret
L7:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int64_t copy_int(int64_t x) {
  int64_t y;
  memcpy(&y, &x, sizeof(int64_t));
  return y;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    $0x1f40,%edi
  call   <malloc@plt>
  mov    %rax,%r13
  mov    $0x1900,%edi
  call   <malloc@plt>
  mov    %rax,%r12
  mov    $0x1f40,%edi
  call   <malloc@plt>
  mov    %r13,%rbx
  lea    0x1f40(%r13),%r14
  sub    %r13,%rax
  mov    %rax,(%rsp)
L6:
  mov    $0xc80,%edi
  call   <malloc@plt>
  mov    %r13,%r15
  mov    %rax,0x0(%r13)
  mov    $0x12c0,%edi
  call   <malloc@plt>
  mov    (%rsp),%rdi
  mov    %rax,0x0(%r13,%rdi,1)
  mov    $0x0,%ebp
L61:
  mov    $0x0,%eax
  call   <rand@plt>
  mov    (%r15),%rcx
  movslq %eax,%rdx
  imul   $0x66666667,%rdx,%rdx
  sar    $0x21,%rdx
  mov    %eax,%esi
  sar    $0x1f,%esi
  sub    %esi,%edx
  lea    (%rdx,%rdx,4),%edx
  sub    %edx,%eax
  add    $0x1,%eax
  mov    %eax,(%rcx,%rbp,1)
  add    $0x4,%rbp
  cmp    $0xc80,%rbp
  jne    L61
  add    $0x8,%r13
  cmp    %r14,%r13
  jne    L6
  lea    0x1900(%r12),%rax
  mov    %rax,0x8(%rsp)
  mov    %r12,%r15
L63:
  mov    $0x12c0,%edi
  call   <malloc@plt>
  mov    %r15,%r13
  mov    %rax,(%r15)
  mov    $0x0,%ebp
L5:
  mov    $0x0,%eax
  call   <rand@plt>
  mov    0x0(%r13),%rcx
  movslq %eax,%rdx
  imul   $0x66666667,%rdx,%rdx
  sar    $0x21,%rdx
  mov    %eax,%esi
  sar    $0x1f,%esi
  sub    %esi,%edx
  lea    (%rdx,%rdx,4),%edx
  sub    %edx,%eax
  add    $0x1,%eax
  mov    %eax,(%rcx,%rbp,1)
  add    $0x4,%rbp
  cmp    $0x12c0,%rbp
  jne    L5
  add    $0x8,%r15
  cmp    0x8(%rsp),%r15
  jne    L63
L49:
  mov    (%rsp),%rax
  lea    (%rbx,%rax,1),%r9
  mov    $0x0,%edi
L53:
  mov    (%r9),%rax
  movl   $0x0,(%rax,%rdi,1)
  mov    %r12,%rcx
  mov    $0x0,%eax
L16:
  mov    %rdi,%rsi
  add    (%r9),%rsi
  mov    (%rbx),%rdx
  mov    (%rcx),%r8
  mov    (%rdx,%rax,1),%edx
  imul   (%r8,%rdi,1),%edx
  add    %edx,(%rsi)
  add    $0x4,%rax
  add    $0x8,%rcx
  cmp    $0xc80,%rax
  jne    L16
  add    $0x4,%rdi
  cmp    $0x12c0,%rdi
  jne    L53
  add    $0x8,%rbx
  cmp    %r14,%rbx
  jne    L49
  mov    $0x0,%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int main() {
  int i, j, k;
  int n = 1000;
  int m = 800;
  int p = 1200;
  int **A = (int **)malloc(sizeof(int *) * n);
  int **B = (int **)malloc(sizeof(int *) * m);
  int **C = (int **)malloc(sizeof(int *) * n);
  for (i = 0; i < n; i++) {
    A[i] = (int *)malloc(sizeof(int) * m);
    C[i] = (int *)malloc(sizeof(int) * p);
    for (j = 0; j < m; j++)
      A[i][j] = rand() % 5 + 1;
  }
  for (i = 0; i < m; i++) {
    B[i] = (int *)malloc(sizeof(int) * p);
    for (j = 0; j < p; j++)
      B[i][j] = rand() % 5 + 1;
  }
#pragma omp parallel private(i, j, k) shared(n, m, p)
  {
#pragma omp for
    for (i = 0; i < n; i++) {
#pragma omp parallel for
      for (j = 0; j < p; j++) {
        C[i][j] = 0;
        for (k = 0; k < m; k++)
          C[i][j] += A[i][k] * B[k][j];
      }
    }
  }
}
```