ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 请将以下的汇编代码转换成C语言代码:

```asm
<matprod_mat_vec_n3>:
  endbr64
  push   %r14
  mov    %r8d,%r14d
  push   %r13
  mov    %rdx,%r13
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %rdi,%rbp
  mov    $0x1,%edi
  push   %rbx
  mov    %ecx,%ebx
  call   <assert@plt>
  mov    $0x1,%edi
  call   <assert@plt>
  mov    $0x1,%edi
  call   <assert@plt>
  test   %r14d,%r14d
  je     L26
  movupd 0x0(%r13),%xmm5
  movsd  0x10(%r13),%xmm4
L4:
  cmp    $0x1,%ebx
  jle    L36
  sub    $0x2,%ebx
  mov    %rbp,%rax
  mov    %r12,%rsi
  xor    %edx,%edx
  mov    %ebx,%ecx
  shr    %ecx
  lea    0x1(%rcx),%edi
  nopl   0x0(%rax,%rax,1)
L7:
  movupd 0x10(%rax),%xmm1
  movupd (%rsi),%xmm2
  add    $0x1,%edx
  add    $0x30,%rax
  movupd -0x10(%rax),%xmm6
  movupd -0x30(%rax),%xmm0
  add    $0x10,%rsi
  movlpd -0x30(%rax),%xmm1
  mulpd  %xmm2,%xmm1
  shufpd $0x1,%xmm6,%xmm0
  mulpd  %xmm2,%xmm0
  movapd %xmm1,%xmm3
  unpcklpd %xmm0,%xmm3
  unpckhpd %xmm0,%xmm1
  movapd %xmm6,%xmm0
  movlpd -0x20(%rax),%xmm0
  addpd  %xmm5,%xmm3
  mulpd  %xmm2,%xmm0
  movapd %xmm3,%xmm5
  addpd  %xmm1,%xmm5
  movapd %xmm0,%xmm1
  unpckhpd %xmm0,%xmm0
  addsd  %xmm4,%xmm1
  movapd %xmm1,%xmm4
  addsd  %xmm0,%xmm4
  cmp    %edx,%edi
  ja     L7
  lea    (%rdi,%rdi,2),%rax
  neg    %ecx
  shl    $0x4,%rdi
  shl    $0x4,%rax
  add    %rdi,%r12
  lea    (%rbx,%rcx,2),%ebx
  add    %rax,%rbp
L36:
  cmp    $0x1,%ebx
  jne    L2
  movsd  (%r12),%xmm0
  movupd 0x0(%rbp),%xmm7
  movapd %xmm0,%xmm1
  mulsd  0x10(%rbp),%xmm0
  unpcklpd %xmm1,%xmm1
  mulpd  %xmm7,%xmm1
  addsd  %xmm0,%xmm4
  addpd  %xmm1,%xmm5
L2:
  pop    %rbx
  movups %xmm5,0x0(%r13)
  pop    %rbp
  movsd  %xmm4,0x10(%r13)
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax)
L26:
  pxor   %xmm5,%xmm5
  pxor   %xmm4,%xmm4
  jmp    L4
```

assistant: ```c
void matprod_mat_vec_n3(double *restrict x, double *restrict y, double *restrict z, int k, int add) {
  assert(((uintptr_t)(x) & (1 - 1)) == 0);
  assert(((uintptr_t)(y) & (1 - 1)) == 0);
  assert(((uintptr_t)(z) & (1 - 1)) == 0);
  x = (x);
  y = (y);
  z = (z);
  {
    double s[3];
    if (add) {
      s[0] = z[0];
      s[1] = z[1];
      s[2] = z[2];
    } else
      s[0] = s[1] = s[2] = 0;
    while (k > 1) {
      s[0] = (s[0] + (x[0] * y[0])) + (x[3] * y[1]);
      s[1] = (s[1] + (x[1] * y[0])) + (x[4] * y[1]);
      s[2] = (s[2] + (x[2] * y[0])) + (x[5] * y[1]);
      x += 6;
      y += 2;
      k -= 2;
    }
    if (k >= 1) {
      s[0] += x[0] * y[0];
      s[1] += x[1] * y[0];
      s[2] += x[2] * y[0];
    }
    z[0] = s[0];
    z[1] = s[1];
    z[2] = s[2];
  }
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<op_tcolor_gt4>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x20(%rbp),%rax
  mov    (%rax),%eax
  add    $0x4,%eax
  mov    %eax,-0xc(%rbp)
  lea    -0xc(%rbp),%rdx
  mov    -0x14(%rbp),%eax
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <op_tcolor@plt>
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L7
  call   <__stack_chk_fail@plt>
L7:
  leave
  ret
```

assistant: ```c
int op_tcolor_gt4(int k, int *pos) {
  int i = *pos + 4;
  return op_tcolor(k, &i);
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<op_tcolor_gt4>:
  endbr64
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  mov    (%rsi),%eax
  add    $0x4,%eax
  mov    %eax,0x4(%rsp)
  lea    0x4(%rsp),%rsi
  call   <op_tcolor@plt>
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L3
  add    $0x18,%rsp
  ret
L3:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int op_tcolor_gt4(int k, int *pos) {
  int i = *pos + 4;
  return op_tcolor(k, &i);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<op_tcolor_gt4>:
  endbr64
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  mov    (%rsi),%eax
  lea    0x4(%rsp),%rsi
  add    $0x4,%eax
  mov    %eax,0x4(%rsp)
  call   <op_tcolor@plt>
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L1
  add    $0x18,%rsp
  ret
L1:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int op_tcolor_gt4(int k, int *pos) {
  int i = *pos + 4;
  return op_tcolor(k, &i);
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<op_tcolor_gt4>:
  endbr64
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  mov    (%rsi),%eax
  lea    0x4(%rsp),%rsi
  add    $0x4,%eax
  mov    %eax,0x4(%rsp)
  call   <op_tcolor@plt>
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L4
  add    $0x18,%rsp
  ret
L4:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int op_tcolor_gt4(int k, int *pos) {
  int i = *pos + 4;
  return op_tcolor(k, &i);
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<islocked>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    D4(%rip),%rax
  mov    (%rax),%edx
  mov    D9(%rip),%rax
  mov    (%rax),%eax
  or     %edx,%eax
  mov    %eax,-0x14(%rbp)
  movl   $0x0,-0x10(%rbp)
  movl   $0x0,-0xc(%rbp)
  mov    $0x0,%edx
  mov    $0x1,%esi
  mov    $0x6f326862,%edi
  call   <semget@plt>
  mov    %eax,-0x18(%rbp)
  cmpl   $0x0,-0x18(%rbp)
  jns    L43
  mov    $0x0,%eax
  jmp    L35
L43:
  lea    -0x14(%rbp),%rcx
  mov    -0x18(%rbp),%eax
  mov    $0x1,%edx
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <semop@plt>
  test   %rax,%rax
  jns    L15
  mov    $0x1,%eax
  jmp    L35
L15:
  mov    $0x0,%eax
L35:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L25
  call   <__stack_chk_fail@plt>
L25:
  leave
  ret
```

assistant: ```c
int islocked(void) {
  int semid;
  struct sembuf trylock[1] = {
      {.sem_num = 0, .sem_op = 0, .sem_flg = SEM_UNDO | IPC_NOWAIT},
  };
  semid = semget(0x6F326862, 1, 0);
  if (semid < 0)
    return 0;
  if (semop(semid, trylock, 1) < 0)
    return 1;
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<islocked>:
  endbr64
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    D4(%rip),%rax
  mov    (%rax),%eax
  mov    D3(%rip),%rdx
  or     (%rdx),%eax
  mov    %eax,0xc(%rsp)
  movl   $0x0,0x10(%rsp)
  movl   $0x0,0x14(%rsp)
  mov    $0x0,%edx
  mov    $0x1,%esi
  mov    $0x6f326862,%edi
  call   <semget@plt>
  mov    %eax,%edi
  mov    $0x0,%eax
  test   %edi,%edi
  js     L4
  lea    0xc(%rsp),%rsi
  mov    $0x1,%edx
  call   <semop@plt>
  shr    $0x3f,%rax
L4:
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L16
  add    $0x28,%rsp
  ret
L16:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int islocked(void) {
  int semid;
  struct sembuf trylock[1] = {
      {.sem_num = 0, .sem_op = 0, .sem_flg = SEM_UNDO | IPC_NOWAIT},
  };
  semid = semget(0x6F326862, 1, 0);
  if (semid < 0)
    return 0;
  if (semop(semid, trylock, 1) < 0)
    return 1;
  return 0;
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<islocked>:
  endbr64
  sub    $0x28,%rsp
  mov    D7(%rip),%rdx
  mov    $0x6f326862,%edi
  mov    $0x1,%esi
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  mov    D8(%rip),%rax
  movq   $0x0,0x10(%rsp)
  mov    (%rax),%eax
  or     (%rdx),%eax
  xor    %edx,%edx
  mov    %eax,0xc(%rsp)
  call   <semget@plt>
  mov    %eax,%edi
  xor    %eax,%eax
  test   %edi,%edi
  js     L7
  lea    0xc(%rsp),%rsi
  mov    $0x1,%edx
  call   <semop@plt>
  shr    $0x3f,%rax
L7:
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L6
  add    $0x28,%rsp
  ret
L6:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int islocked(void) {
  int semid;
  struct sembuf trylock[1] = {
      {.sem_num = 0, .sem_op = 0, .sem_flg = SEM_UNDO | IPC_NOWAIT},
  };
  semid = semget(0x6F326862, 1, 0);
  if (semid < 0)
    return 0;
  if (semop(semid, trylock, 1) < 0)
    return 1;
  return 0;
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<islocked>:
  endbr64
  sub    $0x28,%rsp
  mov    D4(%rip),%rdx
  mov    $0x6f326862,%edi
  mov    $0x1,%esi
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  mov    D18(%rip),%rax
  movq   $0x0,0x10(%rsp)
  mov    (%rax),%eax
  or     (%rdx),%eax
  xor    %edx,%edx
  mov    %eax,0xc(%rsp)
  call   <semget@plt>
  mov    %eax,%edi
  xor    %eax,%eax
  test   %edi,%edi
  js     L14
  lea    0xc(%rsp),%rsi
  mov    $0x1,%edx
  call   <semop@plt>
  shr    $0x3f,%rax
L14:
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L19
  add    $0x28,%rsp
  ret
L19:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int islocked(void) {
  int semid;
  struct sembuf trylock[1] = {
      {.sem_num = 0, .sem_op = 0, .sem_flg = SEM_UNDO | IPC_NOWAIT},
  };
  semid = semget(0x6F326862, 1, 0);
  if (semid < 0)
    return 0;
  if (semop(semid, trylock, 1) < 0)
    return 1;
  return 0;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<ft_strrev>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  movl   $0x0,-0x8(%rbp)
  movl   $0x0,-0x4(%rbp)
  jmp    L34
L28:
  addl   $0x1,-0x8(%rbp)
L34:
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L28
  jmp    L16
L32:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %al,-0x9(%rbp)
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    -0x4(%rbp),%edx
  movslq %edx,%rcx
  mov    -0x18(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rax),%eax
  mov    %al,(%rdx)
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rax,%rdx
  movzbl -0x9(%rbp),%eax
  mov    %al,(%rdx)
  subl   $0x1,-0x8(%rbp)
  addl   $0x1,-0x4(%rbp)
L16:
  mov    -0x8(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  jg     L32
  mov    -0x18(%rbp),%rax
  pop    %rbp
  ret
```

assistant: ```c
char *ft_strrev(char *str) {
  int count;
  int i;
  char c;
  count = 0;
  i = 0;
  while (str[count] != '\0') {
    count = count + 1;
  }
  while (count > i) {
    c = str[i];
    str[i] = str[count];
    str[count] = c;
    count = count - 1;
    i = i + 1;
  }
  return (str);
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<ft_strrev>:
  endbr64
  mov    %rdi,%rax
  cmpb   $0x0,(%rdi)
  je     L26
  mov    $0x1,%ecx
L24:
  mov    %ecx,%edx
  add    $0x1,%rcx
  cmpb   $0x0,-0x1(%rax,%rcx,1)
  jne    L24
  test   %edx,%edx
  jle    L26
  movslq %edx,%rdx
  mov    $0x0,%ecx
L22:
  movzbl (%rax,%rcx,1),%esi
  movzbl (%rax,%rdx,1),%edi
  mov    %dil,(%rax,%rcx,1)
  mov    %sil,(%rax,%rdx,1)
  add    $0x1,%rcx
  sub    $0x1,%rdx
  cmp    %ecx,%edx
  jg     L22
L26:
  ret
```

assistant: ```c
char *ft_strrev(char *str) {
  int count;
  int i;
  char c;
  count = 0;
  i = 0;
  while (str[count] != '\0') {
    count = count + 1;
  }
  while (count > i) {
    c = str[i];
    str[i] = str[count];
    str[count] = c;
    count = count - 1;
    i = i + 1;
  }
  return (str);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<ft_strrev>:
  endbr64
  mov    %rdi,%rax
  movzbl (%rdi),%edi
  test   %dil,%dil
  je     L17
  mov    $0x1,%ecx
  nopl   0x0(%rax)
L16:
  movslq %ecx,%rdx
  add    $0x1,%rcx
  movzbl -0x1(%rax,%rcx,1),%esi
  test   %sil,%sil
  jne    L16
  xor    %ecx,%ecx
  jmp    L1
  nopl   (%rax)
L30:
  movzbl (%rax,%rdx,1),%esi
  movzbl (%rax,%rcx,1),%edi
L1:
  mov    %sil,(%rax,%rcx,1)
  add    $0x1,%rcx
  mov    %dil,(%rax,%rdx,1)
  sub    $0x1,%rdx
  cmp    %edx,%ecx
  jl     L30
L17:
  ret
```

assistant: ```c
char *ft_strrev(char *str) {
  int count;
  int i;
  char c;
  count = 0;
  i = 0;
  while (str[count] != '\0') {
    count = count + 1;
  }
  while (count > i) {
    c = str[i];
    str[i] = str[count];
    str[count] = c;
    count = count - 1;
    i = i + 1;
  }
  return (str);
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<ft_strrev>:
  endbr64
  cmpb   $0x0,(%rdi)
  mov    %rdi,%rax
  je     L5
  mov    $0x1,%ecx
  nopl   0x0(%rax)
L14:
  movslq %ecx,%rdx
  add    $0x1,%rcx
  cmpb   $0x0,-0x1(%rax,%rcx,1)
  jne    L14
  xor    %ecx,%ecx
  nopl   0x0(%rax,%rax,1)
L8:
  movzbl (%rax,%rcx,1),%esi
  movzbl (%rax,%rdx,1),%edi
  mov    %dil,(%rax,%rcx,1)
  add    $0x1,%rcx
  mov    %sil,(%rax,%rdx,1)
  sub    $0x1,%rdx
  cmp    %edx,%ecx
  jl     L8
L5:
  ret
```

assistant: ```c
char *ft_strrev(char *str) {
  int count;
  int i;
  char c;
  count = 0;
  i = 0;
  while (str[count] != '\0') {
    count = count + 1;
  }
  while (count > i) {
    c = str[i];
    str[i] = str[count];
    str[count] = c;
    count = count - 1;
    i = i + 1;
  }
  return (str);
}
```
user: Translate the below assembly code into C programming language:

```asm
<display_putc>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    %edx,%eax
  mov    %ecx,-0x24(%rbp)
  mov    %r8d,-0x28(%rbp)
  mov    %al,-0x20(%rbp)
  mov    -0x28(%rbp),%eax
  shl    $0x14,%eax
  mov    %eax,%edx
  mov    -0x24(%rbp),%eax
  shl    $0x8,%eax
  and    $0xfff00,%eax
  or     %eax,%edx
  movsbl -0x20(%rbp),%eax
  or     %edx,%eax
  mov    %eax,-0xc(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x1c(%rbp),%ecx
  mov    %ecx,%edx
  mov    $0xcccccccd,%eax
  imul   %rdx,%rax
  shr    $0x20,%rax
  mov    %eax,%edx
  shr    $0x6,%edx
  mov    %edx,%eax
  shl    $0x2,%eax
  add    %edx,%eax
  shl    $0x4,%eax
  sub    %eax,%ecx
  mov    %ecx,%edx
  mov    -0x1c(%rbp),%eax
  mov    %eax,%ecx
  mov    $0xcccccccd,%eax
  imul   %rcx,%rax
  shr    $0x20,%rax
  shr    $0x6,%eax
  shl    $0x8,%eax
  add    %edx,%eax
  mov    %eax,%eax
  shl    $0x2,%rax
  add    %rax,-0x8(%rbp)
  cmpl   $0xa9f,-0x1c(%rbp)
  ja     L2
  mov    -0x8(%rbp),%rax
  mov    -0xc(%rbp),%edx
  mov    %edx,(%rax)
L2:
  nop
  pop    %rbp
  ret
```

assistant: ```c
void display_putc(void *display_io, unsigned int pos, char c, unsigned int forecolor, unsigned int backcolor) {
  unsigned int *addr;
  unsigned int cdata = ((backcolor & 0xfff) << 20) | (forecolor & 0xfff) << 8 | c;
  addr = (unsigned int *)display_io;
  addr += (pos % 80) + (pos / 80 * 0x100);
  if (pos < 80 * 34) {
    *addr = cdata;
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<display_putc>:
  endbr64
  mov    %esi,%eax
  mov    %ecx,%r9d
  mov    %r8d,%esi
  cmp    $0xa9f,%eax
  ja     L5
  mov    %eax,%ecx
  mov    $0xcccccccd,%r8d
  imul   %r8,%rcx
  shr    $0x26,%rcx
  mov    %ecx,%r8d
  shl    $0x8,%r8d
  lea    (%rcx,%rcx,4),%ecx
  shl    $0x4,%ecx
  sub    %ecx,%eax
  lea    (%r8,%rax,1),%ecx
  shl    $0x8,%r9d
  mov    %r9d,%r8d
  and    $0xfff00,%r8d
  mov    %esi,%eax
  shl    $0x14,%eax
  or     %eax,%r8d
  movsbl %dl,%edx
  or     %edx,%r8d
  mov    %r8d,(%rdi,%rcx,4)
L5:
  ret
```

assistant: ```c
void display_putc(void *display_io, unsigned int pos, char c, unsigned int forecolor, unsigned int backcolor) {
  unsigned int *addr;
  unsigned int cdata = ((backcolor & 0xfff) << 20) | (forecolor & 0xfff) << 8 | c;
  addr = (unsigned int *)display_io;
  addr += (pos % 80) + (pos / 80 * 0x100);
  if (pos < 80 * 34) {
    *addr = cdata;
  }
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<display_putc>:
  endbr64
  mov    %esi,%eax
  mov    %ecx,%r9d
  mov    %r8d,%esi
  cmp    $0xa9f,%eax
  ja     L4
  mov    %eax,%ecx
  mov    $0xcccccccd,%r8d
  shl    $0x8,%r9d
  movsbl %dl,%edx
  imul   %r8,%rcx
  shr    $0x26,%rcx
  mov    %ecx,%r8d
  lea    (%rcx,%rcx,4),%ecx
  shl    $0x4,%ecx
  shl    $0x8,%r8d
  sub    %ecx,%eax
  lea    (%r8,%rax,1),%ecx
  mov    %r9d,%r8d
  mov    %esi,%eax
  and    $0xfff00,%r8d
  shl    $0x14,%eax
  or     %eax,%r8d
  or     %edx,%r8d
  mov    %r8d,(%rdi,%rcx,4)
L4:
  ret
```

assistant: ```c
void display_putc(void *display_io, unsigned int pos, char c, unsigned int forecolor, unsigned int backcolor) {
  unsigned int *addr;
  unsigned int cdata = ((backcolor & 0xfff) << 20) | (forecolor & 0xfff) << 8 | c;
  addr = (unsigned int *)display_io;
  addr += (pos % 80) + (pos / 80 * 0x100);
  if (pos < 80 * 34) {
    *addr = cdata;
  }
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<display_putc>:
  endbr64
  mov    %esi,%eax
  mov    %ecx,%r9d
  mov    %r8d,%esi
  cmp    $0xa9f,%eax
  ja     L5
  mov    %eax,%ecx
  mov    $0xcccccccd,%r8d
  shl    $0x8,%r9d
  movsbl %dl,%edx
  imul   %r8,%rcx
  shr    $0x26,%rcx
  mov    %ecx,%r8d
  lea    (%rcx,%rcx,4),%ecx
  shl    $0x4,%ecx
  shl    $0x8,%r8d
  sub    %ecx,%eax
  lea    (%r8,%rax,1),%ecx
  mov    %r9d,%r8d
  mov    %esi,%eax
  and    $0xfff00,%r8d
  shl    $0x14,%eax
  or     %eax,%r8d
  or     %edx,%r8d
  mov    %r8d,(%rdi,%rcx,4)
L5:
  ret
```

assistant: ```c
void display_putc(void *display_io, unsigned int pos, char c, unsigned int forecolor, unsigned int backcolor) {
  unsigned int *addr;
  unsigned int cdata = ((backcolor & 0xfff) << 20) | (forecolor & 0xfff) << 8 | c;
  addr = (unsigned int *)display_io;
  addr += (pos % 80) + (pos / 80 * 0x100);
  if (pos < 80 * 34) {
    *addr = cdata;
  }
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<Append>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  cmpq   $0x0,-0x28(%rbp)
  je     L5
  cmpq   $0x0,-0x30(%rbp)
  je     L5
  mov    $0x1,%eax
  jmp    L7
L5:
  mov    $0x0,%eax
L7:
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %rax,-0x18(%rbp)
  mov    -0x30(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %rax,-0x10(%rbp)
  mov    -0x18(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  add    $0x1,%rax
  mov    %rax,%rdi
  call   <malloc_err@plt>
  mov    %rax,-0x8(%rbp)
  mov    -0x28(%rbp),%rdx
  mov    -0x8(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <strcpy@plt>
  mov    -0x10(%rbp),%rdx
  mov    -0x30(%rbp),%rcx
  mov    -0x8(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <strncat@plt>
  leave
  ret
```

assistant: ```c
char *Append(const char *src1, const char *src2) {
  char *temp;
  size_t size1, size2;
  (assert((src1 != NULL) && (src2 != NULL)));
  size1 = strlen(src1);
  size2 = strlen(src2);
  temp = malloc_err(size1 + size2 + 1);
  strcpy(temp, src1);
  return (strncat(temp, src2, size2));
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<Append>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
  mov    %rsi,%rbx
  test   %rdi,%rdi
  setne  %al
  test   %rsi,%rsi
  setne  %dil
  movzbl %dil,%edi
  and    %eax,%edi
  call   <assert@plt>
  mov    %rbp,%rdi
  call   <strlen@plt>
  mov    %rax,%r12
  mov    %rbx,%rdi
  call   <strlen@plt>
  mov    %rax,%r13
  lea    0x1(%r12,%rax,1),%rdi
  call   <malloc_err@plt>
  mov    %rax,%r12
  mov    %rbp,%rsi
  mov    %rax,%rdi
  call   <strcpy@plt>
  mov    %r13,%rdx
  mov    %rbx,%rsi
  mov    %r12,%rdi
  call   <strncat@plt>
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
```

assistant: ```c
char *Append(const char *src1, const char *src2) {
  char *temp;
  size_t size1, size2;
  (assert((src1 != NULL) && (src2 != NULL)));
  size1 = strlen(src1);
  size2 = strlen(src2);
  temp = malloc_err(size1 + size2 + 1);
  strcpy(temp, src1);
  return (strncat(temp, src2, size2));
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<Append>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  mov    %rsi,%rbp
  sub    $0x8,%rsp
  test   %rdi,%rdi
  setne  %al
  xor    %edi,%edi
  test   %rsi,%rsi
  setne  %dil
  and    %eax,%edi
  call   <assert@plt>
  mov    %r12,%rdi
  call   <strlen@plt>
  mov    %rbp,%rdi
  mov    %rax,%r13
  call   <strlen@plt>
  lea    0x1(%r13,%rax,1),%rdi
  mov    %rax,%r14
  call   <malloc_err@plt>
  mov    %r12,%rsi
  mov    %rax,%rdi
  mov    %rax,%r13
  call   <strcpy@plt>
  add    $0x8,%rsp
  mov    %r14,%rdx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  jmp    10b0 <strncat@plt>
```

assistant: ```c
char *Append(const char *src1, const char *src2) {
  char *temp;
  size_t size1, size2;
  (assert((src1 != NULL) && (src2 != NULL)));
  size1 = strlen(src1);
  size2 = strlen(src2);
  temp = malloc_err(size1 + size2 + 1);
  strcpy(temp, src1);
  return (strncat(temp, src2, size2));
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<Append>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  mov    %rdi,%r12
  push   %rbp
  mov    %rsi,%rbp
  sub    $0x8,%rsp
  test   %rdi,%rdi
  setne  %al
  xor    %edi,%edi
  test   %rsi,%rsi
  setne  %dil
  and    %eax,%edi
  call   <assert@plt>
  mov    %r12,%rdi
  call   <strlen@plt>
  mov    %rbp,%rdi
  mov    %rax,%r13
  call   <strlen@plt>
  lea    0x1(%r13,%rax,1),%rdi
  mov    %rax,%r14
  call   <malloc_err@plt>
  mov    %r12,%rsi
  mov    %rax,%rdi
  mov    %rax,%r13
  call   <strcpy@plt>
  add    $0x8,%rsp
  mov    %r14,%rdx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  jmp    10b0 <strncat@plt>
```

assistant: ```c
char *Append(const char *src1, const char *src2) {
  char *temp;
  size_t size1, size2;
  (assert((src1 != NULL) && (src2 != NULL)));
  size1 = strlen(src1);
  size2 = strlen(src2);
  temp = malloc_err(size1 + size2 + 1);
  strcpy(temp, src1);
  return (strncat(temp, src2, size2));
}
```
user: 下面的汇编指令对应的C源代码是什么：

```asm
<uppercase_string>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  movl   $0x0,-0x4(%rbp)
  jmp    L36
L3:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x60,%al
  jle    L7
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x7a,%al
  jg     L7
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  lea    -0x20(%rax),%ecx
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    %ecx,%edx
  mov    %dl,(%rax)
L7:
  addl   $0x1,-0x4(%rbp)
L36:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L3
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void uppercase_string(char *str) {
  int i;
  for (i = 0; *(str + i) != '\0'; i++) {
    if (((*(str + i)) >= 'a') && ((*(str + i)) <= 'z')) {
      *(str + i) = (*(str + i)) - 'a' + 'A';
    }
  }
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<uppercase_string>:
  endbr64
  movzbl (%rdi),%eax
  test   %al,%al
  jne    L1
L17:
  ret
L29:
  add    $0x1,%rdi
  movzbl (%rdi),%eax
  test   %al,%al
  je     L17
L1:
  lea    -0x61(%rax),%edx
  cmp    $0x19,%dl
  ja     L29
  sub    $0x20,%eax
  mov    %al,(%rdi)
  jmp    L29
```

assistant: ```c
void uppercase_string(char *str) {
  int i;
  for (i = 0; *(str + i) != '\0'; i++) {
    if (((*(str + i)) >= 'a') && ((*(str + i)) <= 'z')) {
      *(str + i) = (*(str + i)) - 'a' + 'A';
    }
  }
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<uppercase_string>:
  endbr64
  jmp    L25
  cs nopw 0x0(%rax,%rax,1)
L21:
  lea    -0x61(%rax),%edx
  cmp    $0x19,%dl
  ja     L0
  sub    $0x20,%eax
  mov    %al,(%rdi)
L0:
  add    $0x1,%rdi
L25:
  movzbl (%rdi),%eax
  test   %al,%al
  jne    L21
  ret
```

assistant: ```c
void uppercase_string(char *str) {
  int i;
  for (i = 0; *(str + i) != '\0'; i++) {
    if (((*(str + i)) >= 'a') && ((*(str + i)) <= 'z')) {
      *(str + i) = (*(str + i)) - 'a' + 'A';
    }
  }
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<uppercase_string>:
  endbr64
  movzbl (%rdi),%eax
  test   %al,%al
  je     L4
  nopl   0x0(%rax,%rax,1)
L36:
  lea    -0x61(%rax),%edx
  cmp    $0x19,%dl
  ja     L25
  sub    $0x20,%eax
  add    $0x1,%rdi
  mov    %al,-0x1(%rdi)
  movzbl (%rdi),%eax
  test   %al,%al
  jne    L36
  ret
  nopw   0x0(%rax,%rax,1)
L25:
  movzbl 0x1(%rdi),%eax
  add    $0x1,%rdi
  test   %al,%al
  jne    L36
L4:
  ret
```

assistant: ```c
void uppercase_string(char *str) {
  int i;
  for (i = 0; *(str + i) != '\0'; i++) {
    if (((*(str + i)) >= 'a') && ((*(str + i)) <= 'z')) {
      *(str + i) = (*(str + i)) - 'a' + 'A';
    }
  }
}
```