ylfeng/ReF-Decompile-dataset huggingface dataset:
user: Converte this assembly snippet into its equivalent C code:

```asm
<getoffset>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  mov    $0x64,%ebx
  mov    $0x0,%r12d
  lea    0x4(%rsp),%r13
L16:
  mov    $0x0,%esi
  mov    %r13,%rdi
  call   <gettimeofday@plt>
  mov    %rsp,%rbp
  mov    $0x0,%esi
  mov    %rbp,%rdi
  call   <gettimeofday@plt>
  mov    %r13,%rsi
  mov    %rbp,%rdi
  call   <tvdelta@plt>
  add    %rax,%r12
  sub    $0x1,%ebx
  jne    L16
  movabs $0xa3d70a3d70a3d70b,%rdx
  mov    %r12,%rax
  imul   %rdx
  lea    (%rdx,%r12,1),%rax
  sar    $0x6,%rax
  sar    $0x3f,%r12
  sub    %r12,%rax
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L18
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L18:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
long getoffset(void) {
  int i;
  struct timeval t, o;
  long delta = 0;
  for (i = 0; i < 100; i++) {
    gettimeofday(&o, NULL);
    gettimeofday(&t, NULL);
    delta += tvdelta(&t, &o);
  }
  return (delta / 100);
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<getoffset>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  xor    %ebp,%ebp
  push   %rbx
  mov    $0x64,%ebx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%r13
  mov    %rsp,%r12
  nopl   (%rax)
L13:
  xor    %esi,%esi
  mov    %r13,%rdi
  call   <gettimeofday@plt>
  xor    %esi,%esi
  mov    %r12,%rdi
  call   <gettimeofday@plt>
  mov    %r13,%rsi
  mov    %r12,%rdi
  call   <tvdelta@plt>
  add    %rax,%rbp
  sub    $0x1,%ebx
  jne    L13
  movabs $0xa3d70a3d70a3d70b,%rdx
  mov    %rbp,%rax
  imul   %rdx
  lea    (%rdx,%rbp,1),%rax
  sar    $0x3f,%rbp
  sar    $0x6,%rax
  sub    %rbp,%rax
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L5
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L5:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
long getoffset(void) {
  int i;
  struct timeval t, o;
  long delta = 0;
  for (i = 0; i < 100; i++) {
    gettimeofday(&o, NULL);
    gettimeofday(&t, NULL);
    delta += tvdelta(&t, &o);
  }
  return (delta / 100);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<getoffset>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  xor    %ebp,%ebp
  push   %rbx
  mov    $0x64,%ebx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%r13
  mov    %rsp,%r12
  nopl   (%rax)
L12:
  xor    %esi,%esi
  mov    %r13,%rdi
  call   <gettimeofday@plt>
  xor    %esi,%esi
  mov    %r12,%rdi
  call   <gettimeofday@plt>
  mov    %r13,%rsi
  mov    %r12,%rdi
  call   <tvdelta@plt>
  add    %rax,%rbp
  sub    $0x1,%ebx
  jne    L12
  movabs $0xa3d70a3d70a3d70b,%rdx
  mov    %rbp,%rax
  imul   %rdx
  lea    (%rdx,%rbp,1),%rax
  sar    $0x3f,%rbp
  sar    $0x6,%rax
  sub    %rbp,%rax
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L6
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L6:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
long getoffset(void) {
  int i;
  struct timeval t, o;
  long delta = 0;
  for (i = 0; i < 100; i++) {
    gettimeofday(&o, NULL);
    gettimeofday(&t, NULL);
    delta += tvdelta(&t, &o);
  }
  return (delta / 100);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<internal_timegm>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    -0x28(%rbp),%rax
  mov    (%rax),%eax
  add    $0x76c,%eax
  mov    %eax,-0x20(%rbp)
  mov    -0x28(%rbp),%rax
  mov    0x4(%rax),%eax
  mov    %eax,-0x1c(%rbp)
  cmpl   $0xb,-0x1c(%rbp)
  jle    L3
  mov    -0x1c(%rbp),%eax
  movslq %eax,%rdx
  imul   $0x2aaaaaab,%rdx,%rdx
  shr    $0x20,%rdx
  sar    %edx
  sar    $0x1f,%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  add    %eax,-0x20(%rbp)
  mov    -0x1c(%rbp),%edx
  movslq %edx,%rax
  imul   $0x2aaaaaab,%rax,%rax
  shr    $0x20,%rax
  sar    %eax
  mov    %edx,%esi
  sar    $0x1f,%esi
  sub    %esi,%eax
  mov    %eax,%ecx
  mov    %ecx,%eax
  add    %eax,%eax
  add    %ecx,%eax
  shl    $0x2,%eax
  sub    %eax,%edx
  mov    %edx,-0x1c(%rbp)
  jmp    L12
L3:
  cmpl   $0x0,-0x1c(%rbp)
  jns    L12
  mov    $0xb,%eax
  sub    -0x1c(%rbp),%eax
  movslq %eax,%rdx
  imul   $0x2aaaaaab,%rdx,%rdx
  shr    $0x20,%rdx
  sar    %edx
  sar    $0x1f,%eax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
  mov    %eax,-0x18(%rbp)
  mov    -0x18(%rbp),%eax
  sub    %eax,-0x20(%rbp)
  mov    -0x18(%rbp),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  shl    $0x2,%eax
  add    %eax,-0x1c(%rbp)
L12:
  addl   $0x1,-0x1c(%rbp)
  mov    -0x28(%rbp),%rax
  mov    0x8(%rax),%eax
  mov    %eax,-0x14(%rbp)
  mov    -0x14(%rbp),%edx
  mov    -0x1c(%rbp),%ecx
  mov    -0x20(%rbp),%eax
  mov    %ecx,%esi
  mov    %eax,%edi
  call   <days_from_1jan@plt>
  mov    %eax,-0x10(%rbp)
  mov    -0x20(%rbp),%eax
  mov    %eax,%edi
  call   <days_from_1970@plt>
  mov    -0x10(%rbp),%edx
  add    %edx,%eax
  mov    %eax,-0xc(%rbp)
  movl   $0x15180,-0x8(%rbp)
  mov    -0x8(%rbp),%eax
  imul   -0xc(%rbp),%eax
  mov    %eax,%edx
  mov    -0x28(%rbp),%rax
  mov    0xc(%rax),%eax
  imul   $0xe10,%eax,%eax
  add    %eax,%edx
  mov    -0x28(%rbp),%rax
  mov    0x10(%rax),%eax
  imul   $0x3c,%eax,%eax
  add    %eax,%edx
  mov    -0x28(%rbp),%rax
  mov    0x14(%rax),%eax
  add    %edx,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  leave
  ret
```

assistant: ```c
time_t internal_timegm(struct tm const *t) {
  int year = t->tm_year + 1900;
  int month = t->tm_mon;
  if (month > 11) {
    year += month / 12;
    month %= 12;
  } else if (month < 0) {
    int years_diff = (-month + 11) / 12;
    year -= years_diff;
    month += 12 * years_diff;
  }
  month++;
  int day = t->tm_mday;
  int day_of_year = days_from_1jan(year, month, day);
  int days_since_epoch = days_from_1970(year) + day_of_year;
  time_t seconds_in_day = 3600 * 24;
  time_t result = seconds_in_day * days_since_epoch + 3600 * t->tm_hour + 60 * t->tm_min + t->tm_sec;
  return result;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<internal_timegm>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  mov    (%rdi),%eax
  lea    0x76c(%rax),%ebp
  mov    0x4(%rdi),%esi
  cmp    $0xb,%esi
  jle    L19
  movslq %esi,%rax
  imul   $0x2aaaaaab,%rax,%rax
  sar    $0x21,%rax
  mov    %esi,%edx
  sar    $0x1f,%edx
  sub    %edx,%eax
  add    %eax,%ebp
  lea    (%rax,%rax,2),%eax
  shl    $0x2,%eax
  sub    %eax,%esi
L16:
  mov    0x8(%rbx),%edx
  add    $0x1,%esi
  mov    %ebp,%edi
  call   <days_from_1jan@plt>
  mov    %eax,%r12d
  mov    %ebp,%edi
  call   <days_from_1970@plt>
  add    %r12d,%eax
  imul   $0x15180,%eax,%eax
  imul   $0xe10,0xc(%rbx),%edx
  add    %edx,%eax
  imul   $0x3c,0x10(%rbx),%edx
  add    %edx,%eax
  add    0x14(%rbx),%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L19:
  test   %esi,%esi
  jns    L16
  mov    $0xb,%edx
  sub    %esi,%edx
  movslq %edx,%rax
  imul   $0x2aaaaaab,%rax,%rax
  sar    $0x21,%rax
  sar    $0x1f,%edx
  sub    %edx,%eax
  sub    %eax,%ebp
  lea    (%rax,%rax,2),%eax
  lea    (%rsi,%rax,4),%esi
  jmp    L16
```

assistant: ```c
time_t internal_timegm(struct tm const *t) {
  int year = t->tm_year + 1900;
  int month = t->tm_mon;
  if (month > 11) {
    year += month / 12;
    month %= 12;
  } else if (month < 0) {
    int years_diff = (-month + 11) / 12;
    year -= years_diff;
    month += 12 * years_diff;
  }
  month++;
  int day = t->tm_mday;
  int day_of_year = days_from_1jan(year, month, day);
  int days_since_epoch = days_from_1970(year) + day_of_year;
  time_t seconds_in_day = 3600 * 24;
  time_t result = seconds_in_day * days_since_epoch + 3600 * t->tm_hour + 60 * t->tm_min + t->tm_sec;
  return result;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<internal_timegm>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    (%rdi),%eax
  mov    %rdi,%rbx
  mov    0x4(%rdi),%esi
  lea    0x76c(%rax),%ebp
  cmp    $0xb,%esi
  jle    L5
  movslq %esi,%rax
  mov    %esi,%edx
  imul   $0x2aaaaaab,%rax,%rax
  sar    $0x1f,%edx
  sar    $0x21,%rax
  sub    %edx,%eax
  add    %eax,%ebp
  lea    (%rax,%rax,2),%eax
  shl    $0x2,%eax
  sub    %eax,%esi
L3:
  mov    0x8(%rbx),%edx
  mov    %ebp,%edi
  add    $0x1,%esi
  call   <days_from_1jan@plt>
  mov    %ebp,%edi
  mov    %eax,%r12d
  call   <days_from_1970@plt>
  imul   $0xe10,0xc(%rbx),%edx
  add    %r12d,%eax
  imul   $0x15180,%eax,%eax
  add    %edx,%eax
  imul   $0x3c,0x10(%rbx),%edx
  add    %edx,%eax
  add    0x14(%rbx),%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  nopl   0x0(%rax)
L5:
  test   %esi,%esi
  jns    L3
  mov    $0xb,%eax
  mov    $0xaaaaaaab,%edx
  sub    %esi,%eax
  imul   %rdx,%rax
  shr    $0x23,%rax
  sub    %eax,%ebp
  lea    (%rax,%rax,2),%eax
  lea    (%rsi,%rax,4),%esi
  jmp    L3
```

assistant: ```c
time_t internal_timegm(struct tm const *t) {
  int year = t->tm_year + 1900;
  int month = t->tm_mon;
  if (month > 11) {
    year += month / 12;
    month %= 12;
  } else if (month < 0) {
    int years_diff = (-month + 11) / 12;
    year -= years_diff;
    month += 12 * years_diff;
  }
  month++;
  int day = t->tm_mday;
  int day_of_year = days_from_1jan(year, month, day);
  int days_since_epoch = days_from_1970(year) + day_of_year;
  time_t seconds_in_day = 3600 * 24;
  time_t result = seconds_in_day * days_since_epoch + 3600 * t->tm_hour + 60 * t->tm_min + t->tm_sec;
  return result;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<internal_timegm>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  mov    (%rdi),%eax
  mov    %rdi,%rbx
  mov    0x4(%rdi),%esi
  lea    0x76c(%rax),%ebp
  cmp    $0xb,%esi
  jle    L1
  movslq %esi,%rax
  mov    %esi,%edx
  imul   $0x2aaaaaab,%rax,%rax
  sar    $0x1f,%edx
  sar    $0x21,%rax
  sub    %edx,%eax
  add    %eax,%ebp
  lea    (%rax,%rax,2),%eax
  shl    $0x2,%eax
  sub    %eax,%esi
L5:
  mov    0x8(%rbx),%edx
  mov    %ebp,%edi
  add    $0x1,%esi
  call   <days_from_1jan@plt>
  mov    %ebp,%edi
  mov    %eax,%r12d
  call   <days_from_1970@plt>
  imul   $0xe10,0xc(%rbx),%edx
  add    %r12d,%eax
  imul   $0x15180,%eax,%eax
  add    %edx,%eax
  imul   $0x3c,0x10(%rbx),%edx
  add    %edx,%eax
  add    0x14(%rbx),%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  nopl   0x0(%rax)
L1:
  test   %esi,%esi
  jns    L5
  mov    $0xb,%eax
  mov    $0xaaaaaaab,%edx
  sub    %esi,%eax
  imul   %rdx,%rax
  shr    $0x23,%rax
  sub    %eax,%ebp
  lea    (%rax,%rax,2),%eax
  lea    (%rsi,%rax,4),%esi
  jmp    L5
```

assistant: ```c
time_t internal_timegm(struct tm const *t) {
  int year = t->tm_year + 1900;
  int month = t->tm_mon;
  if (month > 11) {
    year += month / 12;
    month %= 12;
  } else if (month < 0) {
    int years_diff = (-month + 11) / 12;
    year -= years_diff;
    month += 12 * years_diff;
  }
  month++;
  int day = t->tm_mday;
  int day_of_year = days_from_1jan(year, month, day);
  int days_since_epoch = days_from_1970(year) + day_of_year;
  time_t seconds_in_day = 3600 * 24;
  time_t result = seconds_in_day * days_since_epoch + 3600 * t->tm_hour + 60 * t->tm_min + t->tm_sec;
  return result;
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<__sig_handler>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x4(%rbp)
  nop
  pop    %rbp
  ret
```

assistant: ```c
void __sig_handler(int sig) {
  (void)sig;
  return;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<__sig_handler>:
  endbr64
  ret
```

assistant: ```c
void __sig_handler(int sig) {
  (void)sig;
  return;
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<__sig_handler>:
  endbr64
  ret
```

assistant: ```c
void __sig_handler(int sig) {
  (void)sig;
  return;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<__sig_handler>:
  endbr64
  ret
```

assistant: ```c
void __sig_handler(int sig) {
  (void)sig;
  return;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<satno>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x4(%rbp)
  mov    %esi,-0x8(%rbp)
  cmpl   $0x0,-0x8(%rbp)
  jg     L55
  mov    $0x0,%eax
  jmp    L335
L55:
  cmpl   $0x20,-0x4(%rbp)
  jg     L150
  cmpl   $0x0,-0x4(%rbp)
  jle    L349
  cmpl   $0x20,-0x4(%rbp)
  ja     L349
  mov    -0x4(%rbp),%eax
  lea    0x0(,%rax,4),%rdx
  lea    D18(%rip),%rax
  mov    (%rdx,%rax,1),%eax
  cltq
  lea    D18(%rip),%rdx
  add    %rdx,%rax
  notrack jmp *%rax
L150:
  cmpl   $0x40,-0x4(%rbp)
  je     L91
  jmp    L349
  cmpl   $0x0,-0x8(%rbp)
  jle    L239
  cmpl   $0x20,-0x8(%rbp)
  jle    L307
L239:
  mov    $0x0,%eax
  jmp    L335
L307:
  mov    -0x8(%rbp),%eax
  jmp    L335
  cmpl   $0x0,-0x8(%rbp)
  jle    L182
  cmpl   $0x18,-0x8(%rbp)
  jle    L196
L182:
  mov    $0x0,%eax
  jmp    L335
L196:
  mov    -0x8(%rbp),%eax
  add    $0x20,%eax
  jmp    L335
  cmpl   $0x0,-0x8(%rbp)
  js     L327
  cmpl   $0x0,-0x8(%rbp)
  jle    L138
L327:
  mov    $0x0,%eax
  jmp    L335
L138:
  mov    -0x8(%rbp),%eax
  add    $0x39,%eax
  jmp    L335
  cmpl   $0x0,-0x8(%rbp)
  js     L340
  cmpl   $0x0,-0x8(%rbp)
  jle    L237
L340:
  mov    $0x0,%eax
  jmp    L335
L237:
  mov    -0x8(%rbp),%eax
  add    $0x39,%eax
  jmp    L335
  cmpl   $0x0,-0x8(%rbp)
  jle    L82
  cmpl   $0x23,-0x8(%rbp)
  jle    L102
L82:
  mov    $0x0,%eax
  jmp    L335
L102:
  mov    -0x8(%rbp),%eax
  add    $0x38,%eax
  jmp    L335
L91:
  cmpl   $0x0,-0x8(%rbp)
  js     L152
  cmpl   $0x0,-0x8(%rbp)
  jle    L173
L152:
  mov    $0x0,%eax
  jmp    L335
L173:
  mov    -0x8(%rbp),%eax
  add    $0x5c,%eax
  jmp    L335
  cmpl   $0x77,-0x8(%rbp)
  jle    L218
  cmpl   $0x8e,-0x8(%rbp)
  jle    L323
L218:
  mov    $0x0,%eax
  jmp    L335
L323:
  mov    -0x8(%rbp),%eax
  sub    $0x1c,%eax
  jmp    L335
L349:
  mov    $0x0,%eax
L335:
  pop    %rbp
  ret
```

assistant: ```c
extern int satno(int sys, int prn) {
  if (prn <= 0) {
    return 0;
  }
  switch (sys) {
  case 0x01:
    if (prn < 1 || 32 < prn) {
      return 0;
    }
    return prn - 1 + 1;
  case 0x04:
    if (prn < 1 || 24 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + prn - 1 + 1;
  case 0x08:
    if (prn < 0 || 0 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + prn - 0 + 1;
  case 0x10:
    if (prn < 0 || 0 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + prn - 0 + 1;
  case 0x20:
    if (prn < 1 || 35 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + 0 + prn - 1 + 1;
  case 0x40:
    if (prn < 0 || 0 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + 0 + (35 - 1 + 1) + prn - 0 + 1;
  case 0x02:
    if (prn < 120 || 142 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + 0 + (35 - 1 + 1) + 0 + prn - 120 + 1;
  }
  return 0;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<satno>:
  endbr64
  mov    $0x0,%eax
  test   %esi,%esi
  jle    L28
  cmp    $0x4,%edi
  je     L3
  jg     L47
  cmp    $0x1,%edi
  je     L34
  cmp    $0x2,%edi
  je     L8
  ret
L47:
  cmp    $0x20,%edi
  je     L22
  mov    $0x0,%eax
  ret
L34:
  lea    -0x1(%rsi),%eax
  cmp    $0x20,%eax
  mov    $0x0,%eax
  cmovb  %esi,%eax
  ret
L3:
  lea    -0x1(%rsi),%eax
  add    $0x20,%esi
  cmp    $0x18,%eax
  mov    $0x0,%eax
  cmovb  %esi,%eax
  ret
L22:
  lea    -0x1(%rsi),%eax
  add    $0x38,%esi
  cmp    $0x23,%eax
  mov    $0x0,%eax
  cmovb  %esi,%eax
  ret
L8:
  lea    -0x78(%rsi),%eax
  sub    $0x1c,%esi
  cmp    $0x17,%eax
  mov    $0x0,%eax
  cmovb  %esi,%eax
L28:
  ret
```

assistant: ```c
extern int satno(int sys, int prn) {
  if (prn <= 0) {
    return 0;
  }
  switch (sys) {
  case 0x01:
    if (prn < 1 || 32 < prn) {
      return 0;
    }
    return prn - 1 + 1;
  case 0x04:
    if (prn < 1 || 24 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + prn - 1 + 1;
  case 0x08:
    if (prn < 0 || 0 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + prn - 0 + 1;
  case 0x10:
    if (prn < 0 || 0 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + prn - 0 + 1;
  case 0x20:
    if (prn < 1 || 35 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + 0 + prn - 1 + 1;
  case 0x40:
    if (prn < 0 || 0 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + 0 + (35 - 1 + 1) + prn - 0 + 1;
  case 0x02:
    if (prn < 120 || 142 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + 0 + (35 - 1 + 1) + 0 + prn - 120 + 1;
  }
  return 0;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<satno>:
  endbr64
  xor    %eax,%eax
  test   %esi,%esi
  jle    L12
  cmp    $0x4,%edi
  je     L55
  jg     L27
  cmp    $0x1,%edi
  je     L56
  cmp    $0x2,%edi
  je     L13
  ret
  nopl   0x0(%rax)
L27:
  cmp    $0x20,%edi
  je     L54
L12:
  ret
  cs nopw 0x0(%rax,%rax,1)
L13:
  lea    -0x78(%rsi),%edx
  sub    $0x1c,%esi
  cmp    $0x17,%edx
  cmovb  %esi,%eax
  ret
  nopl   (%rax)
L54:
  lea    -0x1(%rsi),%edx
  add    $0x38,%esi
  cmp    $0x23,%edx
  cmovb  %esi,%eax
  ret
  nopl   (%rax)
L55:
  lea    -0x1(%rsi),%edx
  add    $0x20,%esi
  cmp    $0x18,%edx
  cmovb  %esi,%eax
  ret
  nopl   (%rax)
L56:
  lea    -0x1(%rsi),%edx
  cmp    $0x20,%edx
  cmovb  %esi,%eax
  ret
```

assistant: ```c
extern int satno(int sys, int prn) {
  if (prn <= 0) {
    return 0;
  }
  switch (sys) {
  case 0x01:
    if (prn < 1 || 32 < prn) {
      return 0;
    }
    return prn - 1 + 1;
  case 0x04:
    if (prn < 1 || 24 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + prn - 1 + 1;
  case 0x08:
    if (prn < 0 || 0 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + prn - 0 + 1;
  case 0x10:
    if (prn < 0 || 0 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + prn - 0 + 1;
  case 0x20:
    if (prn < 1 || 35 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + 0 + prn - 1 + 1;
  case 0x40:
    if (prn < 0 || 0 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + 0 + (35 - 1 + 1) + prn - 0 + 1;
  case 0x02:
    if (prn < 120 || 142 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + 0 + (35 - 1 + 1) + 0 + prn - 120 + 1;
  }
  return 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
<satno>:
  endbr64
  xor    %eax,%eax
  test   %esi,%esi
  jle    L40
  cmp    $0x4,%edi
  je     L50
  jg     L15
  cmp    $0x1,%edi
  je     L12
  cmp    $0x2,%edi
  je     L35
  ret
  nopl   0x0(%rax)
L15:
  cmp    $0x20,%edi
  je     L25
L40:
  ret
  cs nopw 0x0(%rax,%rax,1)
L35:
  lea    -0x78(%rsi),%edx
  sub    $0x1c,%esi
  cmp    $0x17,%edx
  cmovb  %esi,%eax
  ret
  nopl   (%rax)
L25:
  lea    -0x1(%rsi),%edx
  add    $0x38,%esi
  cmp    $0x23,%edx
  cmovb  %esi,%eax
  ret
  nopl   (%rax)
L50:
  lea    -0x1(%rsi),%edx
  add    $0x20,%esi
  cmp    $0x18,%edx
  cmovb  %esi,%eax
  ret
  nopl   (%rax)
L12:
  lea    -0x1(%rsi),%edx
  cmp    $0x20,%edx
  cmovb  %esi,%eax
  ret
```

assistant: ```c
extern int satno(int sys, int prn) {
  if (prn <= 0) {
    return 0;
  }
  switch (sys) {
  case 0x01:
    if (prn < 1 || 32 < prn) {
      return 0;
    }
    return prn - 1 + 1;
  case 0x04:
    if (prn < 1 || 24 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + prn - 1 + 1;
  case 0x08:
    if (prn < 0 || 0 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + prn - 0 + 1;
  case 0x10:
    if (prn < 0 || 0 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + prn - 0 + 1;
  case 0x20:
    if (prn < 1 || 35 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + 0 + prn - 1 + 1;
  case 0x40:
    if (prn < 0 || 0 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + 0 + (35 - 1 + 1) + prn - 0 + 1;
  case 0x02:
    if (prn < 120 || 142 < prn) {
      return 0;
    }
    return (32 - 1 + 1) + (24 - 1 + 1) + 0 + 0 + (35 - 1 + 1) + 0 + prn - 120 + 1;
  }
  return 0;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<utf8_to_hexstr_ucs2>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x48,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %rsi,-0x40(%rbp)
  mov    %rdx,-0x48(%rbp)
  mov    %rcx,-0x50(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%rbx
  mov    -0x50(%rbp),%rax
  mov    %rax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x28(%rbp)
  mov    %rax,%r10
  mov    $0x0,%r11d
  mov    %rax,%r8
  mov    $0x0,%r9d
  mov    $0x10,%edx
  sub    $0x1,%rdx
  add    %rdx,%rax
  mov    $0x10,%edi
  mov    $0x0,%edx
  div    %rdi
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L26:
  cmp    %rdx,%rsp
  je     L47
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L26
L47:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L40
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L40:
  mov    %rsp,%rax
  add    $0x0,%rax
  mov    %rax,-0x20(%rbp)
  mov    -0x50(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    -0x40(%rbp),%rax
  shl    $0x2,%rax
  cmp    %rax,%rdx
  jae    L36
  mov    $0xffffffff,%eax
  jmp    L73
L36:
  mov    -0x50(%rbp),%rcx
  mov    -0x20(%rbp),%rdx
  mov    -0x40(%rbp),%rsi
  mov    -0x38(%rbp),%rax
  lea    D9(%rip),%r9
  lea    D8(%rip),%r8
  mov    %rax,%rdi
  call   <convert_string@plt>
  mov    %eax,-0x2c(%rbp)
  cmpl   $0x0,-0x2c(%rbp)
  jns    L78
  mov    -0x2c(%rbp),%eax
  jmp    L73
L78:
  mov    -0x50(%rbp),%rcx
  mov    -0x48(%rbp),%rdx
  mov    -0x2c(%rbp),%esi
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <chars8bit_to_hexstr@plt>
  mov    %eax,-0x2c(%rbp)
  mov    -0x2c(%rbp),%eax
L73:
  mov    %rbx,%rsp
  mov    -0x18(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L16
  call   <__stack_chk_fail@plt>
L16:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

tool_calls: name: read_data
arguments: tag: D9
type_guessed: string
name: read_data
arguments: tag: D8
type_guessed: string

tool: D9: UCS-2BE

tool: D8: UTF-8

assistant: ```c
ssize_t utf8_to_hexstr_ucs2(const char *in, size_t in_length, char *out, size_t out_size) {
  char buf[out_size];
  ssize_t res;
  if (out_size - 1 < in_length * 4) {
    return -1;
  }
  res = convert_string(in, in_length, buf, out_size, "UTF-8", "UCS-2BE");
  if (res < 0) {
    return res;
  }
  res = chars8bit_to_hexstr(buf, res, out, out_size);
  return res;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<utf8_to_hexstr_ucs2>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdx,%r12
  mov    %rcx,%rbx
  mov    %fs:0x28,%rax
  mov    %rax,-0x28(%rbp)
  xor    %eax,%eax
  lea    0xf(%rcx),%rax
  mov    %rax,%rcx
  and    $0xfffffffffffffff0,%rcx
  and    $0xfffffffffffff000,%rax
  mov    %rsp,%rdx
  sub    %rax,%rdx
L46:
  cmp    %rdx,%rsp
  je     L55
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L46
L55:
  mov    %rcx,%rax
  and    $0xfff,%eax
  sub    %rax,%rsp
  test   %rax,%rax
  je     L32
  orq    $0x0,-0x8(%rsp,%rax,1)
L32:
  mov    %rsp,%r13
  lea    -0x1(%rbx),%rdx
  lea    0x0(,%rsi,4),%rax
  cmp    %rax,%rdx
  jb     L26
  lea    D5(%rip),%r9
  lea    D4(%rip),%r8
  mov    %rbx,%rcx
  mov    %r13,%rdx
  call   <convert_string@plt>
  test   %eax,%eax
  js     L12
  mov    %rbx,%rcx
  mov    %r12,%rdx
  mov    %eax,%esi
  mov    %r13,%rdi
  call   <chars8bit_to_hexstr@plt>
L12:
  mov    -0x28(%rbp),%rdx
  sub    %fs:0x28,%rdx
  jne    L54
  lea    -0x18(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %rbp
  ret
L26:
  mov    $0xffffffff,%eax
  jmp    L12
L54:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: tag: D5
type_guessed: string
name: parse_data
arguments: tag: D4
type_guessed: string

tool: D5: UCS-2BE

tool: D4: UTF-8

assistant: ```c
ssize_t utf8_to_hexstr_ucs2(const char *in, size_t in_length, char *out, size_t out_size) {
  char buf[out_size];
  ssize_t res;
  if (out_size - 1 < in_length * 4) {
    return -1;
  }
  res = convert_string(in, in_length, buf, out_size, "UTF-8", "UCS-2BE");
  if (res < 0) {
    return res;
  }
  res = chars8bit_to_hexstr(buf, res, out, out_size);
  return res;
}
```