ylfeng/ReF-Decompile-dataset huggingface dataset:
user: What is the c source code of the assembly code below:

```asm
<partition>:
  endbr64
  push   %r13
  mov    %edx,%r13d
  push   %r12
  mov    %esi,%r12d
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  call   <choose_pivot@plt>
  cltq
  mov    (%rbx,%rax,4),%ebp
  cmp    %r13d,%r12d
  jge    L62
L46:
  movslq %r12d,%rax
  mov    (%rbx,%rax,4),%edi
  lea    0x1(%r12),%eax
  cltq
  cmp    %edi,%ebp
  jle    L10
  nopw   0x0(%rax,%rax,1)
L63:
  mov    %eax,%r12d
  add    $0x1,%rax
  mov    -0x4(%rbx,%rax,4),%edi
  cmp    %ebp,%edi
  jl     L63
L10:
  movslq %r13d,%rax
  mov    (%rbx,%rax,4),%esi
  cmp    %esi,%ebp
  jge    L18
  lea    -0x1(%r13),%eax
  cltq
  nop
L19:
  mov    %eax,%r13d
  sub    $0x1,%rax
  mov    0x4(%rbx,%rax,4),%esi
  cmp    %ebp,%esi
  jg     L19
L18:
  cmp    %r13d,%r12d
  jl     L22
L62:
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopw   0x0(%rax,%rax,1)
L22:
  call   <SWAP@plt>
  jmp    L46
```

assistant: ```c
int partition(int *A, int i, int j) {
  int pivot_index, pivot_value;
  pivot_index = choose_pivot(A, i, j);
  pivot_value = A[pivot_index];
  while (i < j) {
    while (A[i] < pivot_value)
      i++;
    while (A[j] > pivot_value)
      j--;
    if (i < j)
      SWAP(A[i], A[j]);
  }
  return i;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<partition>:
  endbr64
  push   %r13
  mov    %edx,%r13d
  push   %r12
  mov    %esi,%r12d
  push   %rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  call   <choose_pivot@plt>
  cltq
  mov    (%rbx,%rax,4),%ebp
  cmp    %r13d,%r12d
  jge    L10
L0:
  movslq %r12d,%rax
  mov    (%rbx,%rax,4),%edi
  lea    0x1(%r12),%eax
  cltq
  cmp    %edi,%ebp
  jle    L36
  nopw   0x0(%rax,%rax,1)
L27:
  mov    %eax,%r12d
  add    $0x1,%rax
  mov    -0x4(%rbx,%rax,4),%edi
  cmp    %ebp,%edi
  jl     L27
L36:
  movslq %r13d,%rax
  mov    (%rbx,%rax,4),%esi
  cmp    %esi,%ebp
  jge    L23
  lea    -0x1(%r13),%eax
  cltq
  nop
L12:
  mov    %eax,%r13d
  sub    $0x1,%rax
  mov    0x4(%rbx,%rax,4),%esi
  cmp    %ebp,%esi
  jg     L12
L23:
  cmp    %r13d,%r12d
  jl     L16
L10:
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopw   0x0(%rax,%rax,1)
L16:
  call   <SWAP@plt>
  jmp    L0
```

assistant: ```c
int partition(int *A, int i, int j) {
  int pivot_index, pivot_value;
  pivot_index = choose_pivot(A, i, j);
  pivot_value = A[pivot_index];
  while (i < j) {
    while (A[i] < pivot_value)
      i++;
    while (A[j] > pivot_value)
      j--;
    if (i < j)
      SWAP(A[i], A[j]);
  }
  return i;
}
```
user: 这段汇编代码用C语言表示是什么样的：

```asm
<hashnode_nextsize>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x14(%rbp)
  mov    -0x14(%rbp),%eax
  sub    $0xffffff80,%eax
  shr    $0x8,%eax
  mov    %eax,%eax
  mov    %rax,-0x8(%rbp)
  cmpq   $0x4,-0x8(%rbp)
  jbe    L2
  movq   $0x4,-0x8(%rbp)
L2:
  mov    -0x8(%rbp),%rax
  shl    $0x8,%rax
  add    $0xfd,%rax
  pop    %rbp
  ret
```

assistant: ```c
size_t hashnode_nextsize(unsigned items) {
  size_t increment = ((items + (256 / 2)) / 256);
  if (increment > 4) {
    increment = 4;
  }
  return 253 + increment * 256;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<hashnode_nextsize>:
  endbr64
  lea    0x80(%rdi),%eax
  shr    $0x8,%eax
  mov    %eax,%eax
  mov    $0x4,%edx
  cmp    %rdx,%rax
  cmova  %rdx,%rax
  shl    $0x8,%rax
  add    $0xfd,%rax
  ret
```

assistant: ```c
size_t hashnode_nextsize(unsigned items) {
  size_t increment = ((items + (256 / 2)) / 256);
  if (increment > 4) {
    increment = 4;
  }
  return 253 + increment * 256;
}
```
user: Translate the below assembly code into C programming language:

```asm
<hashnode_nextsize>:
  endbr64
  lea    0x80(%rdi),%eax
  mov    $0x4,%edx
  shr    $0x8,%eax
  cmp    %rdx,%rax
  cmova  %rdx,%rax
  shl    $0x8,%rax
  add    $0xfd,%rax
  ret
```

assistant: ```c
size_t hashnode_nextsize(unsigned items) {
  size_t increment = ((items + (256 / 2)) / 256);
  if (increment > 4) {
    increment = 4;
  }
  return 253 + increment * 256;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<hashnode_nextsize>:
  endbr64
  lea    0x80(%rdi),%eax
  mov    $0x4,%edx
  shr    $0x8,%eax
  cmp    %rdx,%rax
  cmova  %rdx,%rax
  shl    $0x8,%rax
  add    $0xfd,%rax
  ret
```

assistant: ```c
size_t hashnode_nextsize(unsigned items) {
  size_t increment = ((items + (256 / 2)) / 256);
  if (increment > 4) {
    increment = 4;
  }
  return 253 + increment * 256;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<buffer_store>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    %rcx,-0x30(%rbp)
  mov    %r8,-0x38(%rbp)
  cmpl   $0x0,-0x14(%rbp)
  je     L20
  movl   $0x0,-0x4(%rbp)
  jmp    L18
L27:
  mov    -0x4(%rbp),%eax
  cltq
  shl    $0xa,%rax
  mov    %rax,%rdx
  mov    -0x28(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x4(%rbp),%eax
  shl    $0xa,%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    $0x400,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  mov    -0x4(%rbp),%eax
  cltq
  shl    $0xa,%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x4(%rbp),%eax
  shl    $0xa,%eax
  movslq %eax,%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    $0x400,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  addl   $0x1,-0x4(%rbp)
L18:
  cmpl   $0x3f,-0x4(%rbp)
  jle    L27
  nop
L20:
  nop
  leave
  ret
```

assistant: ```c
void buffer_store(int flag, char *global_buf_A, char part_buf_A[64][(128 + 128) * ((256) / (64))], char *global_buf_B, char part_buf_B[64][(128 + 128) * ((256) / (64))]) {
#pragma HLS INLINE off
  if (flag) {
    for (int i = 0; i < 64; i++) {
      memcpy(global_buf_A + i * ((128 + 128) * ((256) / (64))), part_buf_A[i], (128 + 128) * ((256) / (64)));
      memcpy(global_buf_B + i * ((128 + 128) * ((256) / (64))), part_buf_B[i], (128 + 128) * ((256) / (64)));
    }
  }
  return;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<buffer_store>:
  endbr64
  test   %edi,%edi
  je     L6
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rsi,%rbp
  mov    %rdx,%r12
  mov    %rcx,%r13
  mov    %r8,%r14
  mov    $0x0,%ebx
L9:
  lea    (%r12,%rbx,1),%rsi
  lea    0x0(%rbp,%rbx,1),%rdi
  mov    $0x400,%edx
  call   <memcpy@plt>
  lea    (%r14,%rbx,1),%rsi
  lea    0x0(%r13,%rbx,1),%rdi
  mov    $0x400,%edx
  call   <memcpy@plt>
  add    $0x400,%rbx
  cmp    $0x10000,%rbx
  jne    L9
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L6:
  ret
```

assistant: ```c
void buffer_store(int flag, char *global_buf_A, char part_buf_A[64][(128 + 128) * ((256) / (64))], char *global_buf_B, char part_buf_B[64][(128 + 128) * ((256) / (64))]) {
#pragma HLS INLINE off
  if (flag) {
    for (int i = 0; i < 64; i++) {
      memcpy(global_buf_A + i * ((128 + 128) * ((256) / (64))), part_buf_A[i], (128 + 128) * ((256) / (64)));
      memcpy(global_buf_B + i * ((128 + 128) * ((256) / (64))), part_buf_B[i], (128 + 128) * ((256) / (64)));
    }
  }
  return;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<buffer_store>:
  endbr64
  test   %edi,%edi
  je     L8
  push   %r14
  mov    %r8,%r14
  push   %r13
  mov    %rcx,%r13
  push   %r12
  mov    %rdx,%r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  xor    %ebx,%ebx
  xchg   %ax,%ax
L9:
  lea    (%r12,%rbx,1),%rsi
  lea    0x0(%rbp,%rbx,1),%rdi
  mov    $0x400,%edx
  call   <memcpy@plt>
  lea    (%r14,%rbx,1),%rsi
  lea    0x0(%r13,%rbx,1),%rdi
  mov    $0x400,%edx
  call   <memcpy@plt>
  add    $0x400,%rbx
  cmp    $0x10000,%rbx
  jne    L9
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nop
L8:
  ret
```

assistant: ```c
void buffer_store(int flag, char *global_buf_A, char part_buf_A[64][(128 + 128) * ((256) / (64))], char *global_buf_B, char part_buf_B[64][(128 + 128) * ((256) / (64))]) {
#pragma HLS INLINE off
  if (flag) {
    for (int i = 0; i < 64; i++) {
      memcpy(global_buf_A + i * ((128 + 128) * ((256) / (64))), part_buf_A[i], (128 + 128) * ((256) / (64)));
      memcpy(global_buf_B + i * ((128 + 128) * ((256) / (64))), part_buf_B[i], (128 + 128) * ((256) / (64)));
    }
  }
  return;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<buffer_store>:
  endbr64
  test   %edi,%edi
  je     L14
  push   %r14
  mov    %r8,%r14
  push   %r13
  mov    %rcx,%r13
  push   %r12
  mov    %rdx,%r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  xor    %ebx,%ebx
  xchg   %ax,%ax
L19:
  lea    (%r12,%rbx,1),%rsi
  lea    0x0(%rbp,%rbx,1),%rdi
  mov    $0x400,%edx
  call   <memcpy@plt>
  lea    (%r14,%rbx,1),%rsi
  lea    0x0(%r13,%rbx,1),%rdi
  mov    $0x400,%edx
  call   <memcpy@plt>
  add    $0x400,%rbx
  cmp    $0x10000,%rbx
  jne    L19
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nop
L14:
  ret
```

assistant: ```c
void buffer_store(int flag, char *global_buf_A, char part_buf_A[64][(128 + 128) * ((256) / (64))], char *global_buf_B, char part_buf_B[64][(128 + 128) * ((256) / (64))]) {
#pragma HLS INLINE off
  if (flag) {
    for (int i = 0; i < 64; i++) {
      memcpy(global_buf_A + i * ((128 + 128) * ((256) / (64))), part_buf_A[i], (128 + 128) * ((256) / (64)));
      memcpy(global_buf_B + i * ((128 + 128) * ((256) / (64))), part_buf_B[i], (128 + 128) * ((256) / (64)));
    }
  }
  return;
}
```
user: What is the c source code of the assembly code below:

```asm
<getch>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movb   $0x0,-0x11(%rbp)
  lea    -0x10(%rbp),%rax
  mov    %rax,%rsi
  mov    $0x1,%edi
  call   <tcgetattr@plt>
  mov    -0x10(%rbp),%eax
  mov    %eax,-0xc(%rbp)
  lea    -0xc(%rbp),%rax
  mov    %rax,%rdi
  call   <cfmakeraw@plt>
  mov    D4(%rip),%rax
  mov    (%rax),%eax
  lea    -0xc(%rbp),%rdx
  mov    %eax,%esi
  mov    $0x1,%edi
  call   <tcsetattr@plt>
  mov    D25(%rip),%rax
  mov    (%rax),%edx
  lea    -0x11(%rbp),%rax
  mov    %edx,%ecx
  mov    $0x1,%edx
  mov    $0x1,%esi
  mov    %rax,%rdi
  call   <fread@plt>
  mov    D4(%rip),%rax
  mov    (%rax),%eax
  lea    -0x10(%rbp),%rdx
  mov    %eax,%esi
  mov    $0x1,%edi
  call   <tcsetattr@plt>
  movzbl -0x11(%rbp),%eax
  movsbl %al,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L6
  call   <__stack_chk_fail@plt>
L6:
  leave
  ret
```

assistant: ```c
int getch(void) {
  struct termios t, t2;
  char c = 0;
  tcgetattr(1, &t);
  t2 = t;
  cfmakeraw(&t2);
  tcsetattr(1, TCSANOW, &t2);
  fread(&c, 1, 1, stdin);
  tcsetattr(1, TCSANOW, &t);
  return c;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<getch>:
  endbr64
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  movb   $0x0,0xf(%rsp)
  lea    0x10(%rsp),%rbp
  mov    %rbp,%rsi
  mov    $0x1,%edi
  call   <tcgetattr@plt>
  mov    0x10(%rsp),%eax
  mov    %eax,0x14(%rsp)
  lea    0x14(%rsp),%r12
  mov    %r12,%rdi
  call   <cfmakeraw@plt>
  mov    D16(%rip),%rbx
  mov    %r12,%rdx
  mov    (%rbx),%esi
  mov    $0x1,%edi
  call   <tcsetattr@plt>
  lea    0xf(%rsp),%rdi
  mov    D7(%rip),%rax
  mov    (%rax),%ecx
  mov    $0x1,%edx
  mov    $0x1,%esi
  call   <fread@plt>
  mov    %rbp,%rdx
  mov    (%rbx),%esi
  mov    $0x1,%edi
  call   <tcsetattr@plt>
  movsbl 0xf(%rsp),%eax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L8
  add    $0x20,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
L8:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int getch(void) {
  struct termios t, t2;
  char c = 0;
  tcgetattr(1, &t);
  t2 = t;
  cfmakeraw(&t2);
  tcsetattr(1, TCSANOW, &t2);
  fread(&c, 1, 1, stdin);
  tcsetattr(1, TCSANOW, &t);
  return c;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<getch>:
  endbr64
  push   %r13
  mov    $0x1,%edi
  push   %r12
  push   %rbx
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    0x10(%rsp),%r12
  lea    0x14(%rsp),%r13
  movb   $0x0,0xf(%rsp)
  mov    %r12,%rsi
  call   <tcgetattr@plt>
  mov    0x10(%rsp),%eax
  mov    %r13,%rdi
  mov    %eax,0x14(%rsp)
  call   <cfmakeraw@plt>
  mov    D2(%rip),%rbx
  mov    %r13,%rdx
  mov    $0x1,%edi
  mov    (%rbx),%esi
  call   <tcsetattr@plt>
  lea    0xf(%rsp),%rdi
  mov    $0x1,%edx
  mov    D5(%rip),%rax
  mov    $0x1,%esi
  mov    (%rax),%ecx
  call   <fread@plt>
  mov    (%rbx),%esi
  mov    %r12,%rdx
  mov    $0x1,%edi
  call   <tcsetattr@plt>
  movsbl 0xf(%rsp),%eax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L9
  add    $0x20,%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  ret
L9:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int getch(void) {
  struct termios t, t2;
  char c = 0;
  tcgetattr(1, &t);
  t2 = t;
  cfmakeraw(&t2);
  tcsetattr(1, TCSANOW, &t2);
  fread(&c, 1, 1, stdin);
  tcsetattr(1, TCSANOW, &t);
  return c;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<getch>:
  endbr64
  push   %r13
  mov    $0x1,%edi
  push   %r12
  push   %rbx
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    0x10(%rsp),%r12
  lea    0x14(%rsp),%r13
  movb   $0x0,0xf(%rsp)
  mov    %r12,%rsi
  call   <tcgetattr@plt>
  mov    0x10(%rsp),%eax
  mov    %r13,%rdi
  mov    %eax,0x14(%rsp)
  call   <cfmakeraw@plt>
  mov    D7(%rip),%rbx
  mov    %r13,%rdx
  mov    $0x1,%edi
  mov    (%rbx),%esi
  call   <tcsetattr@plt>
  lea    0xf(%rsp),%rdi
  mov    $0x1,%edx
  mov    D10(%rip),%rax
  mov    $0x1,%esi
  mov    (%rax),%ecx
  call   <fread@plt>
  mov    (%rbx),%esi
  mov    %r12,%rdx
  mov    $0x1,%edi
  call   <tcsetattr@plt>
  movsbl 0xf(%rsp),%eax
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L9
  add    $0x20,%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  ret
L9:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int getch(void) {
  struct termios t, t2;
  char c = 0;
  tcgetattr(1, &t);
  t2 = t;
  cfmakeraw(&t2);
  tcsetattr(1, TCSANOW, &t2);
  fread(&c, 1, 1, stdin);
  tcsetattr(1, TCSANOW, &t);
  return c;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<trim_suffix_c>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %rdi,-0x8(%rbp)
  mov    %esi,-0xc(%rbp)
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L17
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  sub    $0x1,%eax
  cltq
  add    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  cmp    %eax,-0xc(%rbp)
  jne    L15
  mov    -0x8(%rbp),%rax
  movb   $0x0,(%rax)
  jmp    L15
L17:
  nop
L15:
  leave
  ret
```

assistant: ```c
void trim_suffix_c(char *s, int c) {
  if (!*s)
    return;
  s += strlen(s) - 1;
  if (*s == c)
    *s = '\0';
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<trim_suffix_c>:
  endbr64
  cmpb   $0x0,(%rdi)
  jne    L14
  ret
L14:
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbx
  mov    %esi,%ebp
  call   <strlen@plt>
  sub    $0x1,%eax
  cltq
  add    %rax,%rbx
  movsbl (%rbx),%eax
  cmp    %ebp,%eax
  je     L15
L28:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L15:
  movb   $0x0,(%rbx)
  jmp    L28
```

assistant: ```c
void trim_suffix_c(char *s, int c) {
  if (!*s)
    return;
  s += strlen(s) - 1;
  if (*s == c)
    *s = '\0';
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<trim_suffix_c>:
  endbr64
  cmpb   $0x0,(%rdi)
  jne    L3
  ret
  nopw   0x0(%rax,%rax,1)
L3:
  push   %rbp
  mov    %esi,%ebp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  call   <strlen@plt>
  sub    $0x1,%eax
  cltq
  add    %rax,%rbx
  movsbl (%rbx),%eax
  cmp    %ebp,%eax
  jne    L15
  movb   $0x0,(%rbx)
L15:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
void trim_suffix_c(char *s, int c) {
  if (!*s)
    return;
  s += strlen(s) - 1;
  if (*s == c)
    *s = '\0';
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<trim_suffix_c>:
  endbr64
  cmpb   $0x0,(%rdi)
  jne    L14
  ret
  nopw   0x0(%rax,%rax,1)
L14:
  push   %rbp
  mov    %esi,%ebp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  call   <strlen@plt>
  sub    $0x1,%eax
  cltq
  add    %rax,%rbx
  movsbl (%rbx),%eax
  cmp    %ebp,%eax
  jne    L0
  movb   $0x0,(%rbx)
L0:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
void trim_suffix_c(char *s, int c) {
  if (!*s)
    return;
  s += strlen(s) - 1;
  if (*s == c)
    *s = '\0';
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<ft_strcat>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  movl   $0x0,-0x4(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <ft_strlen@plt>
  mov    %eax,-0x8(%rbp)
  jmp    L13
L16:
  addl   $0x1,-0x4(%rbp)
  addl   $0x1,-0x8(%rbp)
L13:
  mov    -0x4(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x20(%rbp),%rax
  add    %rax,%rdx
  mov    -0x8(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x18(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rdx),%edx
  mov    %dl,(%rax)
  movzbl (%rax),%eax
  test   %al,%al
  jne    L16
  mov    -0x8(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movb   $0x0,(%rax)
  mov    -0x18(%rbp),%rax
  leave
  ret
```

assistant: ```c
char *ft_strcat(char *s1, const char *s2) {
  int i;
  int j;
  j = 0;
  i = ft_strlen(s1);
  while ((s1[i] = s2[j])) {
    j++;
    i++;
  }
  s1[i] = '\0';
  return (s1);
}
```
user: Translate the below assembly code into C programming language:

```asm
<ft_strcat>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
  mov    %rsi,%rbx
  call   <ft_strlen@plt>
  cltq
  lea    0x0(%rbp,%rax,1),%rsi
  movzbl (%rbx),%edx
  mov    %dl,(%rsi)
  test   %dl,%dl
  je     L15
  lea    0x1(%rbp,%rax,1),%rax
  lea    0x1(%rbx),%rdx
L8:
  mov    %rax,%rsi
  movzbl (%rdx),%ecx
  mov    %cl,(%rax)
  add    $0x1,%rax
  add    $0x1,%rdx
  test   %cl,%cl
  jne    L8
L15:
  movb   $0x0,(%rsi)
  mov    %rbp,%rax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
char *ft_strcat(char *s1, const char *s2) {
  int i;
  int j;
  j = 0;
  i = ft_strlen(s1);
  while ((s1[i] = s2[j])) {
    j++;
    i++;
  }
  s1[i] = '\0';
  return (s1);
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<ft_strcat>:
  endbr64
  push   %r12
  mov    %rdi,%r12
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x8,%rsp
  call   <ft_strlen@plt>
  movzbl (%rbx),%edx
  cltq
  lea    (%r12,%rax,1),%rcx
  mov    %dl,(%rcx)
  test   %dl,%dl
  je     L9
  lea    0x1(%r12,%rax,1),%rax
  lea    0x1(%rbx),%rsi
  xchg   %ax,%ax
L2:
  movzbl (%rsi),%edx
  mov    %rax,%rcx
  add    $0x1,%rsi
  add    $0x1,%rax
  mov    %dl,-0x1(%rax)
  test   %dl,%dl
  jne    L2
L9:
  movb   $0x0,(%rcx)
  add    $0x8,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %r12
  ret
```

assistant: ```c
char *ft_strcat(char *s1, const char *s2) {
  int i;
  int j;
  j = 0;
  i = ft_strlen(s1);
  while ((s1[i] = s2[j])) {
    j++;
    i++;
  }
  s1[i] = '\0';
  return (s1);
}
```
user: 这段汇编代码用C语言表示是什么样的？

```asm
<ft_strcat>:
  endbr64
  push   %r12
  mov    %rdi,%r12
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x8,%rsp
  call   <ft_strlen@plt>
  movzbl (%rbx),%edx
  cltq
  lea    (%r12,%rax,1),%rcx
  mov    %dl,(%rcx)
  test   %dl,%dl
  je     L4
  lea    0x1(%r12,%rax,1),%rax
  lea    0x1(%rbx),%rsi
  xchg   %ax,%ax
L1:
  movzbl (%rsi),%edx
  mov    %rax,%rcx
  add    $0x1,%rsi
  add    $0x1,%rax
  mov    %dl,-0x1(%rax)
  test   %dl,%dl
  jne    L1
L4:
  movb   $0x0,(%rcx)
  add    $0x8,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %r12
  ret
```

assistant: ```c
char *ft_strcat(char *s1, const char *s2) {
  int i;
  int j;
  j = 0;
  i = ft_strlen(s1);
  while ((s1[i] = s2[j])) {
    j++;
    i++;
  }
  s1[i] = '\0';
  return (s1);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<utf8_len>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,%eax
  mov    %al,-0x4(%rbp)
  movzbl -0x4(%rbp),%eax
  test   %al,%al
  js     L54
  mov    $0x1,%eax
  jmp    L68
L54:
  movzbl -0x4(%rbp),%eax
  and    $0x40,%eax
  test   %eax,%eax
  jne    L28
  mov    $0x0,%eax
  jmp    L68
L28:
  movzbl -0x4(%rbp),%eax
  and    $0x20,%eax
  test   %eax,%eax
  jne    L71
  mov    $0x2,%eax
  jmp    L68
L71:
  movzbl -0x4(%rbp),%eax
  and    $0x10,%eax
  test   %eax,%eax
  jne    L55
  mov    $0x3,%eax
  jmp    L68
L55:
  mov    $0x4,%eax
L68:
  pop    %rbp
  ret
```

assistant: ```c
size_t utf8_len(unsigned char c) {
  if ((c & (1 << 7)) == 0) {
    return 1;
  }
  if ((c & (1 << 6)) == 0) {
    return 0;
  }
  if ((c & (1 << 5)) == 0) {
    return 2;
  }
  if ((c & (1 << 4)) == 0) {
    return 3;
  }
  return 4;
}
```
user: 这段汇编代码用C语言表示是什么样的：

```asm
<utf8_len>:
  endbr64
  mov    $0x1,%eax
  test   %dil,%dil
  jns    L22
  mov    $0x0,%eax
  test   $0x40,%dil
  je     L22
  mov    $0x2,%eax
  test   $0x20,%dil
  je     L22
  test   $0x10,%dil
  setne  %al
  movzbl %al,%eax
  add    $0x3,%rax
L22:
  ret
```

assistant: ```c
size_t utf8_len(unsigned char c) {
  if ((c & (1 << 7)) == 0) {
    return 1;
  }
  if ((c & (1 << 6)) == 0) {
    return 0;
  }
  if ((c & (1 << 5)) == 0) {
    return 2;
  }
  if ((c & (1 << 4)) == 0) {
    return 3;
  }
  return 4;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<utf8_len>:
  endbr64
  mov    $0x1,%eax
  test   %dil,%dil
  jns    L24
  xor    %eax,%eax
  test   $0x40,%dil
  je     L24
  mov    $0x2,%eax
  test   $0x20,%dil
  je     L24
  xor    %eax,%eax
  and    $0x10,%edi
  setne  %al
  add    $0x3,%rax
L24:
  ret
```

assistant: ```c
size_t utf8_len(unsigned char c) {
  if ((c & (1 << 7)) == 0) {
    return 1;
  }
  if ((c & (1 << 6)) == 0) {
    return 0;
  }
  if ((c & (1 << 5)) == 0) {
    return 2;
  }
  if ((c & (1 << 4)) == 0) {
    return 3;
  }
  return 4;
}
```
user: Translate the below assembly code into C programming language:

```asm
<utf8_len>:
  endbr64
  mov    $0x1,%eax
  test   %dil,%dil
  jns    L22
  xor    %eax,%eax
  test   $0x40,%dil
  je     L22
  mov    $0x2,%eax
  test   $0x20,%dil
  je     L22
  xor    %eax,%eax
  and    $0x10,%edi
  setne  %al
  add    $0x3,%rax
L22:
  ret
```

assistant: ```c
size_t utf8_len(unsigned char c) {
  if ((c & (1 << 7)) == 0) {
    return 1;
  }
  if ((c & (1 << 6)) == 0) {
    return 0;
  }
  if ((c & (1 << 5)) == 0) {
    return 2;
  }
  if ((c & (1 << 4)) == 0) {
    return 3;
  }
  return 4;
}
```