ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<format_hex_bytes>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    %rcx,-0x40(%rbp)
  mov    %r8d,-0x44(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  movq   $0x0,-0x8(%rbp)
  movl   $0x0,-0x14(%rbp)
  jmp    L39
L4:
  cmpq   $0x0,-0x8(%rbp)
  je     L21
  mov    -0x8(%rbp),%rdx
  mov    -0x10(%rbp),%rax
  lea    D4(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  cltq
  add    %rax,-0x10(%rbp)
  jmp    L15
L21:
  mov    -0x38(%rbp),%rax
  mov    %rax,-0x8(%rbp)
L15:
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x30(%rbp),%rcx
  mov    -0x10(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <sprintf@plt>
  cltq
  add    %rax,-0x10(%rbp)
  addl   $0x1,-0x14(%rbp)
L39:
  mov    -0x14(%rbp),%eax
  cmp    -0x44(%rbp),%eax
  jl     L4
  mov    -0x10(%rbp),%rax
  sub    -0x28(%rbp),%rax
  leave
  ret
```

tool_calls: name: unpack_data
arguments: label: D4
type_guessed: string

tool: D4: %s

assistant: ```c
int format_hex_bytes(char *dst, const char *format, const char *delim, const uint8_t *src, int len) {
  char *d = dst;
  int i;
  const char *cdelim = NULL;
  for (i = 0; i < len; i++) {
    if (cdelim)
      d += sprintf(d, "%s", cdelim);
    else
      cdelim = delim;
    d += sprintf(d, format, src[i]);
  }
  return d - dst;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<format_hex_bytes>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,0x8(%rsp)
  test   %r8d,%r8d
  jle    L35
  mov    %rsi,%r13
  mov    %rdx,%r12
  mov    %rcx,%rbp
  lea    -0x1(%r8),%eax
  lea    (%rcx,%rax,8),%r14
  mov    %rdi,%rbx
  lea    D5(%rip),%r15
  jmp    L30
L38:
  add    $0x8,%rbp
L30:
  mov    0x0(%rbp),%rdx
  mov    %r13,%rsi
  mov    %rbx,%rdi
  call   <sprintf@plt>
  cltq
  add    %rax,%rbx
  cmp    %r14,%rbp
  je     L8
  test   %r12,%r12
  je     L38
  mov    %r12,%rdx
  mov    %r15,%rsi
  mov    %rbx,%rdi
  call   <sprintf@plt>
  cltq
  add    %rax,%rbx
  jmp    L38
L35:
  mov    0x8(%rsp),%rbx
L8:
  mov    %ebx,%eax
  sub    0x8(%rsp),%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

tool_calls: name: parse_data
arguments: label: D5
type_guessed: string

tool: D5: %s

assistant: ```c
int format_hex_bytes(char *dst, const char *format, const char *delim, const uint8_t *src, int len) {
  char *d = dst;
  int i;
  const char *cdelim = NULL;
  for (i = 0; i < len; i++) {
    if (cdelim)
      d += sprintf(d, "%s", cdelim);
    else
      cdelim = delim;
    d += sprintf(d, format, src[i]);
  }
  return d - dst;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<format_hex_bytes>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,0x8(%rsp)
  test   %r8d,%r8d
  jle    L12
  lea    -0x1(%r8),%eax
  mov    %rsi,%r12
  mov    %rdx,%rbp
  mov    %rcx,%r14
  lea    (%rcx,%rax,8),%r13
  mov    %rdi,%rbx
  lea    D3(%rip),%r15
  jmp    L23
  nopl   0x0(%rax)
L4:
  test   %rbp,%rbp
  je     L17
  mov    %rbx,%rdi
  mov    %rbp,%rdx
  mov    %r15,%rsi
  call   <sprintf@plt>
  cltq
  add    %rax,%rbx
L17:
  add    $0x8,%r14
L23:
  mov    (%r14),%rdx
  mov    %rbx,%rdi
  mov    %r12,%rsi
  call   <sprintf@plt>
  cltq
  add    %rax,%rbx
  cmp    %r13,%r14
  jne    L4
  mov    %ebx,%eax
  sub    0x8(%rsp),%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L12:
  add    $0x18,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

tool_calls: name: extract_symbolic_data
arguments: label: D3
type_infered: string

tool: D3: %s

assistant: ```c
int format_hex_bytes(char *dst, const char *format, const char *delim, const uint8_t *src, int len) {
  char *d = dst;
  int i;
  const char *cdelim = NULL;
  for (i = 0; i < len; i++) {
    if (cdelim)
      d += sprintf(d, "%s", cdelim);
    else
      cdelim = delim;
    d += sprintf(d, format, src[i]);
  }
  return d - dst;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<format_hex_bytes>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %rdi,0x8(%rsp)
  test   %r8d,%r8d
  jle    L2
  mov    %rsi,%rbp
  mov    %rdx,%r12
  mov    %rcx,%rbx
  test   %rdx,%rdx
  je     L55
  lea    -0x1(%r8),%eax
  mov    %rdi,%r15
  lea    D0(%rip),%r14
  lea    0x8(%rcx,%rax,8),%r13
  jmp    L16
  nopl   0x0(%rax,%rax,1)
L29:
  mov    %r15,%rdi
  mov    %r12,%rdx
  mov    %r14,%rsi
  call   <sprintf@plt>
  cltq
  add    %rax,%r15
L16:
  mov    (%rbx),%rdx
  mov    %r15,%rdi
  mov    %rbp,%rsi
  add    $0x8,%rbx
  call   <sprintf@plt>
  cltq
  add    %rax,%r15
  cmp    %r13,%rbx
  jne    L29
L7:
  mov    %r15d,%eax
  sub    0x8(%rsp),%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   (%rax)
L55:
  lea    -0x1(%r8),%eax
  mov    %rdi,%r15
  lea    0x8(%rcx,%rax,8),%r12
  nopl   0x0(%rax)
L34:
  mov    (%rbx),%rdx
  mov    %r15,%rdi
  mov    %rbp,%rsi
  add    $0x8,%rbx
  call   <sprintf@plt>
  cltq
  add    %rax,%r15
  cmp    %r12,%rbx
  jne    L34
  jmp    L7
  xchg   %ax,%ax
L2:
  add    $0x18,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

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

tool: D0: %s

assistant: ```c
int format_hex_bytes(char *dst, const char *format, const char *delim, const uint8_t *src, int len) {
  char *d = dst;
  int i;
  const char *cdelim = NULL;
  for (i = 0; i < len; i++) {
    if (cdelim)
      d += sprintf(d, "%s", cdelim);
    else
      cdelim = delim;
    d += sprintf(d, format, src[i]);
  }
  return d - dst;
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<isaac_mix>:
  endbr64
  mov    %rdi,%rdx
  mov    $0x2,%eax
  lea    D9(%rip),%r10
  lea    0x1(%r10),%r9
L3:
  lea    -0x1(%rax),%ecx
  and    $0x7,%ecx
  lea    (%rdx,%rcx,4),%rdi
  movzbl (%r10,%rax,1),%ecx
  mov    (%rdi),%esi
  shl    %cl,%esi
  mov    %esi,%ecx
  xor    -0x8(%rdx,%rax,4),%ecx
  mov    %ecx,-0x8(%rdx,%rax,4)
  lea    0x1(%rax),%esi
  and    $0x7,%esi
  lea    (%rdx,%rsi,4),%r8
  add    %ecx,(%r8)
  mov    %rax,%rcx
  and    $0x7,%ecx
  lea    (%rdx,%rcx,4),%rsi
  mov    (%rsi),%ecx
  add    %ecx,(%rdi)
  movzbl (%rax,%r9,1),%ecx
  mov    (%rsi),%edi
  shr    %cl,%edi
  mov    %edi,%ecx
  xor    -0x4(%rdx,%rax,4),%ecx
  mov    %ecx,-0x4(%rdx,%rax,4)
  lea    0x2(%rax),%edi
  and    $0x7,%edi
  add    %ecx,(%rdx,%rdi,4)
  mov    (%r8),%ecx
  add    %ecx,(%rsi)
  add    $0x2,%rax
  cmp    $0xa,%rax
  jne    L3
  ret
```

assistant: ```c
void isaac_mix(unsigned _x[8]) {
  static const unsigned char SHIFT[8] = {11, 2, 8, 16, 10, 4, 8, 9};
  int i;
  for (i = 0; i < 8; i++) {
    _x[i] ^= _x[i + 1 & 7] << SHIFT[i];
    _x[i + 3 & 7] += _x[i];
    _x[i + 1 & 7] += _x[i + 2 & 7];
    i++;
    _x[i] ^= _x[i + 1 & 7] >> SHIFT[i];
    _x[i + 3 & 7] += _x[i];
    _x[i + 1 & 7] += _x[i + 2 & 7];
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<isaac_mix>:
  endbr64
  lea    D7(%rip),%r10
  mov    %rdi,%rdx
  mov    $0x2,%eax
  mov    $0x2,%r11d
  mov    $0xb,%ecx
  lea    0x1(%r10),%r9
L2:
  lea    -0x1(%rax),%esi
  movslq %esi,%rsi
  lea    (%rdx,%rsi,4),%rdi
  mov    (%rdi),%esi
  shl    %cl,%esi
  mov    -0x8(%rdx,%rax,4),%ecx
  xor    %esi,%ecx
  lea    0x1(%rax),%esi
  and    $0x7,%esi
  mov    %ecx,-0x8(%rdx,%rax,4)
  lea    (%rdx,%rsi,4),%r8
  add    %ecx,(%r8)
  mov    %rax,%rcx
  and    $0x7,%ecx
  lea    (%rdx,%rcx,4),%rsi
  mov    (%rsi),%ecx
  add    %ecx,(%rdi)
  mov    %r11d,%ecx
  mov    (%rsi),%edi
  shr    %cl,%edi
  mov    -0x4(%rdx,%rax,4),%ecx
  xor    %edi,%ecx
  lea    0x2(%rax),%edi
  and    $0x7,%edi
  mov    %ecx,-0x4(%rdx,%rax,4)
  add    %ecx,(%rdx,%rdi,4)
  mov    (%r8),%ecx
  add    %ecx,(%rsi)
  cmp    $0x8,%rax
  je     L5
  movzbl (%r10,%rax,1),%ecx
  movzbl (%rax,%r9,1),%r11d
  add    $0x2,%rax
  jmp    L2
  nopw   0x0(%rax,%rax,1)
L5:
  ret
```

assistant: ```c
void isaac_mix(unsigned _x[8]) {
  static const unsigned char SHIFT[8] = {11, 2, 8, 16, 10, 4, 8, 9};
  int i;
  for (i = 0; i < 8; i++) {
    _x[i] ^= _x[i + 1 & 7] << SHIFT[i];
    _x[i + 3 & 7] += _x[i];
    _x[i + 1 & 7] += _x[i + 2 & 7];
    i++;
    _x[i] ^= _x[i + 1 & 7] >> SHIFT[i];
    _x[i + 3 & 7] += _x[i];
    _x[i + 1 & 7] += _x[i + 2 & 7];
  }
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<isaac_mix>:
  endbr64
  mov    0x4(%rdi),%eax
  mov    %rdi,%rdx
  mov    0xc(%rdi),%ecx
  mov    %eax,%r9d
  shl    $0xb,%r9d
  xor    (%rdi),%r9d
  mov    0x8(%rdi),%edi
  add    %r9d,%ecx
  mov    %edi,%r8d
  add    %edi,%eax
  mov    %ecx,%esi
  add    %ecx,%edi
  shr    $0x2,%r8d
  shl    $0x8,%esi
  xor    %eax,%r8d
  mov    0x10(%rdx),%eax
  xor    %esi,%edi
  mov    0x14(%rdx),%esi
  add    %r8d,%eax
  add    %edi,%esi
  mov    %eax,%r10d
  add    %eax,%ecx
  add    %esi,%eax
  shr    $0x10,%r10d
  xor    %r10d,%ecx
  mov    %esi,%r10d
  shl    $0xa,%r10d
  mov    %ecx,0xc(%rdx)
  add    0x18(%rdx),%ecx
  xor    %r10d,%eax
  mov    %ecx,%r10d
  add    %ecx,%esi
  shr    $0x4,%r10d
  mov    %eax,0x10(%rdx)
  add    0x1c(%rdx),%eax
  xor    %r10d,%esi
  add    %eax,%ecx
  add    %esi,%r9d
  mov    %esi,0x14(%rdx)
  mov    %eax,%esi
  shl    $0x8,%esi
  add    %r9d,%eax
  xor    %esi,%ecx
  mov    %r9d,%esi
  shr    $0x9,%esi
  mov    %ecx,0x18(%rdx)
  add    %r8d,%ecx
  xor    %esi,%eax
  mov    %ecx,0x4(%rdx)
  add    %r9d,%ecx
  mov    %eax,0x1c(%rdx)
  add    %edi,%eax
  mov    %eax,0x8(%rdx)
  mov    %ecx,(%rdx)
  ret
```

assistant: ```c
void isaac_mix(unsigned _x[8]) {
  static const unsigned char SHIFT[8] = {11, 2, 8, 16, 10, 4, 8, 9};
  int i;
  for (i = 0; i < 8; i++) {
    _x[i] ^= _x[i + 1 & 7] << SHIFT[i];
    _x[i + 3 & 7] += _x[i];
    _x[i + 1 & 7] += _x[i + 2 & 7];
    i++;
    _x[i] ^= _x[i + 1 & 7] >> SHIFT[i];
    _x[i + 3 & 7] += _x[i];
    _x[i + 1 & 7] += _x[i + 2 & 7];
  }
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<printchar>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %rdi,-0x8(%rbp)
  mov    %esi,-0xc(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  je     L6
  mov    -0x8(%rbp),%rax
  mov    (%rax),%rax
  mov    -0xc(%rbp),%edx
  mov    %dl,(%rax)
  mov    -0x8(%rbp),%rax
  mov    (%rax),%rax
  lea    0x1(%rax),%rdx
  mov    -0x8(%rbp),%rax
  mov    %rdx,(%rax)
  jmp    L13
L6:
  mov    -0xc(%rbp),%eax
  mov    %eax,%edi
  call   <U0putch@plt>
L13:
  nop
  leave
  ret
```

assistant: ```c
void printchar(char **str, int c) {
  extern void U0putch(int c);
  if (str) {
    **str = c;
    ++(*str);
  } else
    (void)U0putch(c);
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<printchar>:
  endbr64
  test   %rdi,%rdi
  je     L1
  mov    (%rdi),%rdx
  mov    %sil,(%rdx)
  addq   $0x1,(%rdi)
  ret
L1:
  sub    $0x8,%rsp
  mov    %esi,%edi
  call   <U0putch@plt>
  add    $0x8,%rsp
  ret
```

assistant: ```c
void printchar(char **str, int c) {
  extern void U0putch(int c);
  if (str) {
    **str = c;
    ++(*str);
  } else
    (void)U0putch(c);
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<printchar>:
  endbr64
  test   %rdi,%rdi
  je     L6
  mov    (%rdi),%rdx
  mov    %sil,(%rdx)
  addq   $0x1,(%rdi)
  ret
  nopl   0x0(%rax)
L6:
  mov    %esi,%edi
  jmp    1050 <U0putch@plt>
```

assistant: ```c
void printchar(char **str, int c) {
  extern void U0putch(int c);
  if (str) {
    **str = c;
    ++(*str);
  } else
    (void)U0putch(c);
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<printchar>:
  endbr64
  test   %rdi,%rdi
  je     L7
  mov    (%rdi),%rdx
  mov    %sil,(%rdx)
  addq   $0x1,(%rdi)
  ret
  nopl   0x0(%rax)
L7:
  mov    %esi,%edi
  jmp    1050 <U0putch@plt>
```

assistant: ```c
void printchar(char **str, int c) {
  extern void U0putch(int c);
  if (str) {
    **str = c;
    ++(*str);
  } else
    (void)U0putch(c);
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<send_n_bytes>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %edi,-0x24(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  cmpq   $0x0,-0x30(%rbp)
  je     L48
  cmpq   $0x0,-0x38(%rbp)
  jne    L6
L48:
  mov    $0xffffffff,%eax
  jmp    L37
L6:
  movq   $0x0,-0x18(%rbp)
  mov    -0x30(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  jmp    L29
L92:
  mov    -0x30(%rbp),%rax
  sub    -0x10(%rbp),%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  lea    (%rdx,%rax,1),%rsi
  lea    -0x18(%rbp),%rcx
  mov    -0x10(%rbp),%rdx
  mov    -0x24(%rbp),%eax
  mov    %eax,%edi
  call   <transmit@plt>
  test   %rax,%rax
  je     L69
  mov    $0xffffffff,%eax
  jmp    L37
L69:
  mov    -0x18(%rbp),%rax
  test   %rax,%rax
  je     L73
  mov    -0x18(%rbp),%rax
  sub    %rax,-0x10(%rbp)
L29:
  cmpq   $0x0,-0x10(%rbp)
  jne    L92
  jmp    L26
L73:
  nop
L26:
  mov    -0x30(%rbp),%rax
  mov    %eax,%edx
  mov    -0x10(%rbp),%rax
  mov    %eax,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
L37:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L36
  call   <__stack_chk_fail@plt>
L36:
  leave
  ret
```

assistant: ```c
int send_n_bytes(int fd, size_t n, char *buf) {
  if (!n || !buf)
    return -1;
  size_t tx = 0;
  size_t to_send = n;
  while (to_send > 0) {
    if (transmit(fd, buf + (n - to_send), to_send, &tx) != 0) {
      return -1;
    } else if (tx == 0) {
      break;
    } else {
      to_send -= tx;
    }
  }
  return n - to_send;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<send_n_bytes>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  test   %rsi,%rsi
  je     L16
  mov    %edi,%r13d
  mov    %rsi,%rbp
  mov    %rdx,%r12
  test   %rdx,%rdx
  je     L16
  movq   $0x0,(%rsp)
  mov    %rsi,%rbx
  mov    %rsp,%r14
L41:
  mov    %rbp,%rsi
  sub    %rbx,%rsi
  add    %r12,%rsi
  mov    %r14,%rcx
  mov    %rbx,%rdx
  mov    %r13d,%edi
  call   <transmit@plt>
  test   %rax,%rax
  jne    L53
  mov    (%rsp),%rax
  test   %rax,%rax
  je     L8
  sub    %rax,%rbx
  jne    L41
L8:
  mov    %ebp,%eax
  sub    %ebx,%eax
L25:
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L38
  add    $0x10,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L16:
  mov    $0xffffffff,%eax
  jmp    L25
L53:
  mov    $0xffffffff,%eax
  jmp    L25
L38:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int send_n_bytes(int fd, size_t n, char *buf) {
  if (!n || !buf)
    return -1;
  size_t tx = 0;
  size_t to_send = n;
  while (to_send > 0) {
    if (transmit(fd, buf + (n - to_send), to_send, &tx) != 0) {
      return -1;
    } else if (tx == 0) {
      break;
    } else {
      to_send -= tx;
    }
  }
  return n - to_send;
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<send_n_bytes>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  test   %rsi,%rsi
  je     L24
  mov    %rdx,%r12
  test   %rdx,%rdx
  je     L24
  mov    %edi,%r13d
  mov    %rsi,%rbp
  mov    %rsi,%rbx
  mov    %rsp,%r14
  movq   $0x0,(%rsp)
  nopl   0x0(%rax)
L6:
  mov    %rbp,%rsi
  mov    %r14,%rcx
  mov    %rbx,%rdx
  mov    %r13d,%edi
  sub    %rbx,%rsi
  add    %r12,%rsi
  call   <transmit@plt>
  test   %rax,%rax
  jne    L24
  mov    (%rsp),%rax
  test   %rax,%rax
  je     L20
  sub    %rax,%rbx
  jne    L6
  xor    %ebx,%ebx
L20:
  mov    %ebp,%eax
  sub    %ebx,%eax
L10:
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L27
  add    $0x10,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   (%rax)
L24:
  mov    $0xffffffff,%eax
  jmp    L10
L27:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int send_n_bytes(int fd, size_t n, char *buf) {
  if (!n || !buf)
    return -1;
  size_t tx = 0;
  size_t to_send = n;
  while (to_send > 0) {
    if (transmit(fd, buf + (n - to_send), to_send, &tx) != 0) {
      return -1;
    } else if (tx == 0) {
      break;
    } else {
      to_send -= tx;
    }
  }
  return n - to_send;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<send_n_bytes>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  test   %rsi,%rsi
  je     L29
  mov    %rdx,%r12
  test   %rdx,%rdx
  je     L29
  mov    %edi,%r13d
  mov    %rsi,%rbp
  mov    %rsi,%rbx
  mov    %rsp,%r14
  movq   $0x0,(%rsp)
  nopl   0x0(%rax)
L22:
  mov    %rbp,%rsi
  mov    %r14,%rcx
  mov    %rbx,%rdx
  mov    %r13d,%edi
  sub    %rbx,%rsi
  add    %r12,%rsi
  call   <transmit@plt>
  test   %rax,%rax
  jne    L29
  mov    (%rsp),%rax
  test   %rax,%rax
  je     L27
  sub    %rax,%rbx
  jne    L22
  xor    %ebx,%ebx
L27:
  mov    %ebp,%eax
  sub    %ebx,%eax
L69:
  mov    0x8(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L6
  add    $0x10,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   (%rax)
L29:
  mov    $0xffffffff,%eax
  jmp    L69
L6:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int send_n_bytes(int fd, size_t n, char *buf) {
  if (!n || !buf)
    return -1;
  size_t tx = 0;
  size_t to_send = n;
  while (to_send > 0) {
    if (transmit(fd, buf + (n - to_send), to_send, &tx) != 0) {
      return -1;
    } else if (tx == 0) {
      break;
    } else {
      to_send -= tx;
    }
  }
  return n - to_send;
}
```
user: What is the c source code of the assembly code below?

```asm
<PDJPG_TransIRDCT>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x218,%rsp
  mov    %rdi,%r12
  mov    %rsi,%rbp
  mov    %edx,%ebx
  mov    %fs:0x28,%rax
  mov    %rax,0x208(%rsp)
  xor    %eax,%eax
  mov    %rsp,%r13
  mov    %r13,%rsi
  call   <PDJPG_TransIRDCT_Vert@plt>
  lea    0x4(%rsp),%rsi
  lea    0x2(%r12),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Vert@plt>
  lea    0x8(%rsp),%rsi
  lea    0x4(%r12),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Vert@plt>
  lea    0xc(%rsp),%rsi
  lea    0x6(%r12),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Vert@plt>
  lea    0x10(%rsp),%rsi
  lea    0x8(%r12),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Vert@plt>
  lea    0x14(%rsp),%rsi
  lea    0xa(%r12),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Vert@plt>
  lea    0x18(%rsp),%rsi
  lea    0xc(%r12),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Vert@plt>
  lea    0x1c(%rsp),%rsi
  lea    0xe(%r12),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Vert@plt>
  lea    0x100(%rsp),%rsi
  mov    %r13,%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Horiz@plt>
  lea    0x120(%rsp),%rsi
  lea    0x20(%rsp),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Horiz@plt>
  lea    0x140(%rsp),%rsi
  lea    0x40(%rsp),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Horiz@plt>
  lea    0x160(%rsp),%rsi
  lea    0x60(%rsp),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Horiz@plt>
  lea    0x180(%rsp),%rsi
  lea    0x80(%rsp),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Horiz@plt>
  lea    0x1a0(%rsp),%rsi
  lea    0xa0(%rsp),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Horiz@plt>
  lea    0x1c0(%rsp),%rsi
  lea    0xc0(%rsp),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Horiz@plt>
  lea    0x1e0(%rsp),%rsi
  lea    0xe0(%rsp),%rdi
  mov    $0x0,%eax
  call   <PDJPG_TransIRDCT_Horiz@plt>
  mov    $0x0,%eax
L10:
  mov    %ebx,%edx
  add    0x100(%rsp,%rax,4),%edx
  mov    %dx,0x0(%rbp,%rax,2)
  add    $0x1,%rax
  cmp    $0x40,%rax
  jne    L10
  mov    0x208(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L11
  add    $0x218,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L11:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void PDJPG_TransIRDCT(short *iblk, short *oblk, int dcbias, int rtm) {
  int s[64];
  int t[64];
  int i, j;
  PDJPG_TransIRDCT_Vert(iblk + 0, s + 0);
  PDJPG_TransIRDCT_Vert(iblk + 1, s + 1);
  PDJPG_TransIRDCT_Vert(iblk + 2, s + 2);
  PDJPG_TransIRDCT_Vert(iblk + 3, s + 3);
  PDJPG_TransIRDCT_Vert(iblk + 4, s + 4);
  PDJPG_TransIRDCT_Vert(iblk + 5, s + 5);
  PDJPG_TransIRDCT_Vert(iblk + 6, s + 6);
  PDJPG_TransIRDCT_Vert(iblk + 7, s + 7);
  PDJPG_TransIRDCT_Horiz(s + 0, t + 0);
  PDJPG_TransIRDCT_Horiz(s + 8, t + 8);
  PDJPG_TransIRDCT_Horiz(s + 16, t + 16);
  PDJPG_TransIRDCT_Horiz(s + 24, t + 24);
  PDJPG_TransIRDCT_Horiz(s + 32, t + 32);
  PDJPG_TransIRDCT_Horiz(s + 40, t + 40);
  PDJPG_TransIRDCT_Horiz(s + 48, t + 48);
  PDJPG_TransIRDCT_Horiz(s + 56, t + 56);
  for (i = 0; i < 64; i++) {
    j = (t[i]) + dcbias;
    oblk[i] = j;
  }
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<getmarker>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    $0x0,%edi
  call   <rb@plt>
  mov    %eax,-0x4(%rbp)
  cmpl   $0xffffffff,-0x4(%rbp)
  jne    L20
  mov    $0xffffffff,%eax
  jmp    L9
L20:
  cmpl   $0xff,-0x4(%rbp)
  je     L37
  mov    $0xffffffff,%eax
  jmp    L9
L37:
  mov    $0x0,%edi
  call   <rb@plt>
  mov    %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
L9:
  leave
  ret
```

assistant: ```c
int getmarker(void) {
  int c;
  c = rb(0);
  if (c == -1)
    return -1;
  if (c != 0xff)
    return -1;
  c = rb(0);
  return c;
}
```
user: What is the c source code of the assembly code below:

```asm
<getmarker>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x0,%edi
  call   <rb@plt>
  cmp    $0xff,%eax
  jne    L18
  mov    $0x0,%edi
  call   <rb@plt>
L17:
  add    $0x8,%rsp
  ret
L18:
  mov    $0xffffffff,%eax
  jmp    L17
```

assistant: ```c
int getmarker(void) {
  int c;
  c = rb(0);
  if (c == -1)
    return -1;
  if (c != 0xff)
    return -1;
  c = rb(0);
  return c;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<getmarker>:
  endbr64
  sub    $0x8,%rsp
  xor    %edi,%edi
  call   <rb@plt>
  cmp    $0xff,%eax
  jne    L5
  xor    %edi,%edi
  add    $0x8,%rsp
  jmp    1050 <rb@plt>
  nopl   0x0(%rax)
L5:
  mov    $0xffffffff,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int getmarker(void) {
  int c;
  c = rb(0);
  if (c == -1)
    return -1;
  if (c != 0xff)
    return -1;
  c = rb(0);
  return c;
}
```
user: 这段汇编代码用C语言表示是什么样的：

```asm
<getmarker>:
  endbr64
  sub    $0x8,%rsp
  xor    %edi,%edi
  call   <rb@plt>
  cmp    $0xff,%eax
  jne    L5
  xor    %edi,%edi
  add    $0x8,%rsp
  jmp    1050 <rb@plt>
  nopl   0x0(%rax)
L5:
  mov    $0xffffffff,%eax
  add    $0x8,%rsp
  ret
```

assistant: ```c
int getmarker(void) {
  int c;
  c = rb(0);
  if (c == -1)
    return -1;
  if (c != 0xff)
    return -1;
  c = rb(0);
  return c;
}
```