ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 这段汇编代码用C语言表示是什么样的？

```asm
<main>:
  endbr64
  push   %r13
  mov    $0x4,%esi
  lea    D15(%rip),%r13
  push   %r12
  push   %rbp
  xor    %ebp,%ebp
  push   %rbx
  sub    $0x28,%rsp
  movdqa D9(%rip),%xmm0
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    0x10(%rsp),%rdi
  mov    %rsp,%r12
  movl   $0x61616161,0x10(%rsp)
  movaps %xmm0,(%rsp)
  call   <Zero@plt>
L4:
  xor    %ebx,%ebx
L20:
  movsbl (%r12,%rbx,1),%ecx
  mov    %ebx,%edx
  mov    %ebp,%esi
  mov    %r13,%rdi
  add    $0x1,%rbx
  call   <printf@plt>
  cmp    $0x4,%rbx
  jne    L20
  add    $0x1,%ebp
  add    $0x4,%r12
  cmp    $0x5,%ebp
  jne    L4
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L1
  add    $0x28,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L1:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: disassemble_data
arguments: label: D15
type: string
name: disassemble_data
arguments: label: D9
type: byte[16]

tool: D15: us[%d][%d] is %c


tool: {"D9": [0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61,0x61]}

assistant: ```c
main() {
  int i, j;
  char us[5][4] = {'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a', 'a'};
  Zero((void *)us[4], 4);
  for (i = 0; i < 5; i++)
    for (j = 0; j < 4; j++)
      printf("us[%d][%d] is %c\n", i, j, us[i][j]);
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<afree>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  je     L5
  mov    -0x18(%rbp),%rax
  sub    $0x4,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  mov    (%rax),%eax
  cltq
  neg    %rax
  mov    %rax,%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  mov    -0x8(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  jmp    L1
L5:
  nop
L1:
  leave
  ret
```

assistant: ```c
void afree(void *ptr) {
  char *q;
  uint32_t *h;
  if (ptr == NULL)
    return;
  h = (uint32_t *)(ptr - 4);
  q = ((void *)h) - *h;
  free(q);
}
```
user: Translate the below assembly code into C programming language:

```asm
<afree>:
  endbr64
  test   %rdi,%rdi
  je     L4
  sub    $0x8,%rsp
  movslq -0x4(%rdi),%rax
  sub    %rax,%rdi
  lea    -0x4(%rdi),%rdi
  call   <free@plt>
  add    $0x8,%rsp
  ret
L4:
  ret
```

assistant: ```c
void afree(void *ptr) {
  char *q;
  uint32_t *h;
  if (ptr == NULL)
    return;
  h = (uint32_t *)(ptr - 4);
  q = ((void *)h) - *h;
  free(q);
}
```
user: What is the c source code of the assembly code below?

```asm
<afree>:
  endbr64
  test   %rdi,%rdi
  je     L0
  movslq -0x4(%rdi),%rax
  sub    %rax,%rdi
  sub    $0x4,%rdi
  jmp    1050 <free@plt>
  nopl   0x0(%rax)
L0:
  ret
```

assistant: ```c
void afree(void *ptr) {
  char *q;
  uint32_t *h;
  if (ptr == NULL)
    return;
  h = (uint32_t *)(ptr - 4);
  q = ((void *)h) - *h;
  free(q);
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<afree>:
  endbr64
  test   %rdi,%rdi
  je     L2
  movslq -0x4(%rdi),%rax
  sub    %rax,%rdi
  sub    $0x4,%rdi
  jmp    1050 <free@plt>
  nopl   0x0(%rax)
L2:
  ret
```

assistant: ```c
void afree(void *ptr) {
  char *q;
  uint32_t *h;
  if (ptr == NULL)
    return;
  h = (uint32_t *)(ptr - 4);
  q = ((void *)h) - *h;
  free(q);
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<remove_padding_bits>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x38(%rbp)
  mov    %rsi,-0x40(%rbp)
  mov    %rdx,-0x48(%rbp)
  mov    %rcx,-0x50(%rbp)
  mov    %r8d,-0x54(%rbp)
  mov    -0x50(%rbp),%rax
  sub    -0x48(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  movq   $0x0,-0x20(%rbp)
  movq   $0x0,-0x18(%rbp)
  movl   $0x0,-0x24(%rbp)
  jmp    L32
L36:
  movq   $0x0,-0x10(%rbp)
  jmp    L13
L54:
  mov    -0x18(%rbp),%rax
  shr    $0x3,%rax
  mov    %rax,%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  movzbl %al,%edx
  mov    -0x18(%rbp),%rax
  not    %eax
  and    $0x7,%eax
  mov    %eax,%ecx
  sar    %cl,%edx
  mov    %edx,%eax
  and    $0x1,%eax
  mov    %al,-0x25(%rbp)
  addq   $0x1,-0x18(%rbp)
  cmpb   $0x0,-0x25(%rbp)
  jne    L30
  mov    -0x20(%rbp),%rax
  shr    $0x3,%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  mov    -0x20(%rbp),%rax
  not    %eax
  and    $0x7,%eax
  mov    $0x1,%esi
  mov    %eax,%ecx
  shl    %cl,%esi
  mov    %esi,%eax
  not    %eax
  mov    %eax,%ecx
  mov    -0x20(%rbp),%rax
  shr    $0x3,%rax
  mov    %rax,%rsi
  mov    -0x38(%rbp),%rax
  add    %rsi,%rax
  and    %ecx,%edx
  mov    %dl,(%rax)
  jmp    L24
L30:
  mov    -0x20(%rbp),%rax
  shr    $0x3,%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  mov    %eax,%esi
  mov    -0x20(%rbp),%rax
  not    %eax
  and    $0x7,%eax
  mov    $0x1,%edx
  mov    %eax,%ecx
  shl    %cl,%edx
  mov    %edx,%eax
  or     %eax,%esi
  mov    %esi,%edx
  mov    -0x20(%rbp),%rax
  shr    $0x3,%rax
  mov    %rax,%rcx
  mov    -0x38(%rbp),%rax
  add    %rcx,%rax
  mov    %dl,(%rax)
L24:
  addq   $0x1,-0x20(%rbp)
  addq   $0x1,-0x10(%rbp)
L13:
  mov    -0x10(%rbp),%rax
  cmp    -0x48(%rbp),%rax
  jb     L54
  mov    -0x8(%rbp),%rax
  add    %rax,-0x18(%rbp)
  addl   $0x1,-0x24(%rbp)
L32:
  mov    -0x24(%rbp),%eax
  cmp    -0x54(%rbp),%eax
  jb     L36
  nop
  nop
  pop    %rbp
  ret
```

assistant: ```c
void remove_padding_bits(unsigned char *out, const unsigned char *in, unsigned long olinebits, unsigned long ilinebits, unsigned h) {
  unsigned y;
  unsigned long diff = ilinebits - olinebits;
  unsigned long obp = 0, ibp = 0;
  for (y = 0; y < h; y++) {
    unsigned long x;
    for (x = 0; x < olinebits; x++) {
      unsigned char bit = (unsigned char)((in[(ibp) >> 3] >> (7 - ((ibp)&0x7))) & 1);
      ibp++;
      if (bit == 0)
        out[(obp) >> 3] &= (unsigned char)(~(1 << (7 - ((obp)&0x7))));
      else
        out[(obp) >> 3] |= (1 << (7 - ((obp)&0x7)));
      ++obp;
    }
    ibp += diff;
  }
}
```
user: Translate the below assembly code into C programming language:

```asm
<remove_padding_bits>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rsi,%r11
  mov    %rdx,%rbp
  mov    %r8d,%r13d
  sub    %rdx,%rcx
  mov    %rcx,%r14
  mov    $0x0,%edx
  mov    $0x0,%ebx
  mov    $0x0,%r12d
  mov    $0x1,%r8d
  test   %r13d,%r13d
  jne    L53
L15:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L62:
  shr    $0x3,%rdx
  mov    %esi,%ecx
  and    $0x7,%ecx
  mov    %r8d,%r15d
  shl    %cl,%r15d
  or     %r15b,(%rdi,%rdx,1)
L1:
  sub    $0x1,%esi
  cmp    %rax,%r9
  je     L14
L54:
  lea    (%r10,%rax,1),%rdx
  mov    %rax,%rcx
  shr    $0x3,%rcx
  movzbl (%r11,%rcx,1),%r15d
  mov    %eax,%ecx
  not    %ecx
  and    $0x7,%ecx
  add    $0x1,%rax
  bt     %ecx,%r15d
  jb     L62
  shr    $0x3,%rdx
  mov    %esi,%ecx
  and    $0x7,%ecx
  mov    %r8d,%r15d
  shl    %cl,%r15d
  mov    %r15d,%ecx
  not    %ecx
  and    %cl,(%rdi,%rdx,1)
  jmp    L1
L14:
  add    %rbp,%rbx
L51:
  lea    (%r14,%r9,1),%rdx
  add    $0x1,%r12d
  cmp    %r12d,%r13d
  je     L15
L53:
  mov    %ebx,%esi
  not    %esi
  lea    0x0(%rbp,%rdx,1),%r9
  mov    %rdx,%rax
  mov    %rbx,%r10
  sub    %rdx,%r10
  test   %rbp,%rbp
  jne    L54
  mov    %rdx,%r9
  jmp    L51
```

assistant: ```c
void remove_padding_bits(unsigned char *out, const unsigned char *in, unsigned long olinebits, unsigned long ilinebits, unsigned h) {
  unsigned y;
  unsigned long diff = ilinebits - olinebits;
  unsigned long obp = 0, ibp = 0;
  for (y = 0; y < h; y++) {
    unsigned long x;
    for (x = 0; x < olinebits; x++) {
      unsigned char bit = (unsigned char)((in[(ibp) >> 3] >> (7 - ((ibp)&0x7))) & 1);
      ibp++;
      if (bit == 0)
        out[(obp) >> 3] &= (unsigned char)(~(1 << (7 - ((obp)&0x7))));
      else
        out[(obp) >> 3] |= (1 << (7 - ((obp)&0x7)));
      ++obp;
    }
    ibp += diff;
  }
}
```
user: What is the c source code of the assembly code below?

```asm
<remove_padding_bits>:
  endbr64
  push   %r15
  sub    %rdx,%rcx
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %r8d,-0x4(%rsp)
  test   %r8d,%r8d
  je     L21
  mov    %rdx,%r12
  mov    %rdi,%r11
  mov    %rsi,%r10
  mov    %rcx,%r14
  xor    %edx,%edx
  xor    %ebp,%ebp
  xor    %r13d,%r13d
  mov    $0x1,%ebx
  nopw   0x0(%rax,%rax,1)
L9:
  mov    %rbp,%r9
  mov    %edx,%r8d
  lea    (%r12,%rdx,1),%rdi
  mov    %rdx,%rax
  sub    %rdx,%r9
  sub    %ebp,%r8d
  test   %r12,%r12
  je     L39
  nopl   0x0(%rax,%rax,1)
L25:
  mov    %rax,%rcx
  lea    (%rax,%r9,1),%rdx
  mov    %ebx,%r15d
  shr    $0x3,%rcx
  shr    $0x3,%rdx
  movzbl (%r10,%rcx,1),%esi
  mov    %eax,%ecx
  add    $0x1,%rax
  add    %r11,%rdx
  not    %ecx
  and    $0x7,%ecx
  sar    %cl,%esi
  mov    %r8d,%ecx
  sub    %eax,%ecx
  and    $0x7,%ecx
  shl    %cl,%r15d
  mov    %r15d,%ecx
  not    %r15d
  or     (%rdx),%cl
  and    (%rdx),%r15b
  and    $0x1,%esi
  cmove  %r15d,%ecx
  mov    %cl,(%rdx)
  cmp    %rdi,%rax
  jne    L25
  add    %r12,%rbp
L27:
  lea    (%r14,%rdi,1),%rdx
  add    $0x1,%r13d
  cmp    %r13d,-0x4(%rsp)
  jne    L9
L21:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax,%rax,1)
L39:
  mov    %rdx,%rdi
  jmp    L27
```

assistant: ```c
void remove_padding_bits(unsigned char *out, const unsigned char *in, unsigned long olinebits, unsigned long ilinebits, unsigned h) {
  unsigned y;
  unsigned long diff = ilinebits - olinebits;
  unsigned long obp = 0, ibp = 0;
  for (y = 0; y < h; y++) {
    unsigned long x;
    for (x = 0; x < olinebits; x++) {
      unsigned char bit = (unsigned char)((in[(ibp) >> 3] >> (7 - ((ibp)&0x7))) & 1);
      ibp++;
      if (bit == 0)
        out[(obp) >> 3] &= (unsigned char)(~(1 << (7 - ((obp)&0x7))));
      else
        out[(obp) >> 3] |= (1 << (7 - ((obp)&0x7)));
      ++obp;
    }
    ibp += diff;
  }
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<remove_padding_bits>:
  endbr64
  push   %r15
  mov    %rcx,%rax
  push   %r14
  sub    %rdx,%rax
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %r8d,-0x10(%rsp)
  test   %r8d,%r8d
  je     L62
  mov    %rdx,%r9
  test   %rdx,%rdx
  je     L62
  mov    %eax,-0xc(%rsp)
  mov    %rdx,%rax
  mov    %rdi,%rbx
  mov    %rsi,%rbp
  sub    %rcx,%rax
  mov    %rcx,%r14
  xor    %r11d,%r11d
  xor    %r10d,%r10d
  mov    %rax,-0x8(%rsp)
  xor    %r15d,%r15d
  xor    %r13d,%r13d
  mov    $0x1,%r12d
  nopl   0x0(%rax,%rax,1)
L65:
  mov    %r13d,-0x14(%rsp)
  mov    %r15,%rax
  nopl   0x0(%rax,%rax,1)
L69:
  mov    %rax,%rcx
  lea    (%rax,%r10,1),%rdx
  mov    %eax,%esi
  add    $0x1,%rax
  shr    $0x3,%rcx
  not    %esi
  shr    $0x3,%rdx
  mov    %r12d,%r13d
  movzbl 0x0(%rbp,%rcx,1),%r8d
  mov    %r11d,%ecx
  and    $0x7,%esi
  add    %rbx,%rdx
  sub    %eax,%ecx
  movzbl (%rdx),%edi
  and    $0x7,%ecx
  shl    %cl,%r13d
  bt     %esi,%r8d
  mov    %r13d,%ecx
  jae    L67
  or     %edi,%ecx
  mov    %cl,(%rdx)
  cmp    %r9,%rax
  jne    L69
L18:
  mov    -0x14(%rsp),%r13d
  add    %r14,%r15
  add    %r14,%r9
  add    -0x8(%rsp),%r10
  add    -0xc(%rsp),%r11d
  add    $0x1,%r13d
  cmp    %r13d,-0x10(%rsp)
  jne    L65
L62:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L67:
  not    %ecx
  and    %edi,%ecx
  mov    %cl,(%rdx)
  cmp    %r9,%rax
  jne    L69
  jmp    L18
```

assistant: ```c
void remove_padding_bits(unsigned char *out, const unsigned char *in, unsigned long olinebits, unsigned long ilinebits, unsigned h) {
  unsigned y;
  unsigned long diff = ilinebits - olinebits;
  unsigned long obp = 0, ibp = 0;
  for (y = 0; y < h; y++) {
    unsigned long x;
    for (x = 0; x < olinebits; x++) {
      unsigned char bit = (unsigned char)((in[(ibp) >> 3] >> (7 - ((ibp)&0x7))) & 1);
      ibp++;
      if (bit == 0)
        out[(obp) >> 3] &= (unsigned char)(~(1 << (7 - ((obp)&0x7))));
      else
        out[(obp) >> 3] |= (1 << (7 - ((obp)&0x7)));
      ++obp;
    }
    ibp += diff;
  }
}
```
user: Translate the below assembly code into C programming language:

```asm
<flip_B7>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  movq   $0x0,-0x20(%rbp)
  movabs $0x102040810000000,%rax
  and    -0x28(%rbp),%rax
  mov    %rax,-0x18(%rbp)
  movabs $0x2040810200000,%rax
  and    -0x30(%rbp),%rax
  movabs $0xfdfbf7efc00000,%rdx
  or     %rdx,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  add    $0x200000,%rax
  and    -0x18(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  je     L18
  mov    -0x8(%rbp),%rax
  lea    -0x1(%rax),%rdx
  movabs $0x2040810200000,%rax
  and    %rdx,%rax
  or     %rax,-0x20(%rbp)
L18:
  movabs $0x4040404040000000,%rax
  and    -0x28(%rbp),%rax
  mov    %rax,-0x18(%rbp)
  movabs $0x40404040400000,%rax
  and    -0x30(%rbp),%rax
  movabs $0x3fbfbfbfbf800000,%rdx
  or     %rdx,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  add    $0x400000,%rax
  and    -0x18(%rbp),%rax
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  je     L1
  mov    -0x8(%rbp),%rax
  lea    -0x1(%rax),%rdx
  movabs $0x40404040400000,%rax
  and    %rdx,%rax
  or     %rax,-0x20(%rbp)
L1:
  mov    -0x28(%rbp),%rax
  and    $0x1f00,%eax
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  lea    (%rax,%rax,1),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  and    $0x4000,%eax
  mov    %rax,-0x8(%rbp)
  cmpq   $0x0,-0x8(%rbp)
  je     L28
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <last_bit@plt>
  mov    $0x2,%edx
  mov    %eax,%ecx
  shl    %cl,%rdx
  mov    $0x4000,%eax
  sub    %rdx,%rax
  or     %rax,-0x20(%rbp)
L28:
  mov    -0x20(%rbp),%rax
  leave
  ret
```

assistant: ```c
unsigned long long flip_B7(const unsigned long long discs_player, const unsigned long long discs_opponent) {
  unsigned long long my_discs, opp_discs, r, flipped = 0ULL;
  my_discs = discs_player & 0X0102040810000000ULL;
  opp_discs = (discs_opponent & 0X0002040810200000ULL) | 0X00FDFBF7EFC00000ULL;
  r = (opp_discs + 0X0000000000200000ULL) & my_discs;
  if (r != 0) {
    flipped |= (r - 1) & 0X0002040810200000ULL;
  }
  my_discs = discs_player & 0X4040404040000000ULL;
  opp_discs = (discs_opponent & 0X0040404040400000ULL) | 0X3FBFBFBFBF800000ULL;
  r = (opp_discs + 0X0000000000400000ULL) & my_discs;
  if (r != 0) {
    flipped |= (r - 1) & 0X0040404040400000ULL;
  }
  my_discs = discs_player & 0X0000000000001F00ULL;
  r = ((my_discs << 1) + discs_opponent) & 0X0000000000004000ULL;
  if (r != 0) {
    flipped |= 0X0000000000004000ULL - (0X2ULL << last_bit(my_discs));
  }
  return flipped;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<flip_B7>:
  endbr64
  push   %rbx
  mov    %rsi,%rdx
  movabs $0x2040810200000,%rbx
  and    %rsi,%rbx
  movabs $0xfdfbf7efc00000,%rax
  or     %rax,%rbx
  add    $0x200000,%rbx
  and    %rdi,%rbx
  movabs $0x102040810000000,%rax
  and    %rax,%rbx
  je     L13
  sub    $0x1,%rbx
  movabs $0x2040810200000,%rax
  and    %rax,%rbx
L13:
  movabs $0x40404040400000,%rax
  and    %rdx,%rax
  movabs $0x3fbfbfbfbf800000,%rcx
  or     %rcx,%rax
  add    $0x400000,%rax
  and    %rdi,%rax
  movabs $0x4040404040000000,%rcx
  and    %rcx,%rax
  je     L26
  sub    $0x1,%rax
  movabs $0x40404040400000,%rcx
  and    %rcx,%rax
  or     %rax,%rbx
L26:
  and    $0x1f00,%edi
  lea    (%rdx,%rdi,2),%rax
  test   $0x40,%ah
  jne    L36
L22:
  mov    %rbx,%rax
  pop    %rbx
  ret
L36:
  call   <last_bit@plt>
  mov    $0x2,%edx
  mov    %eax,%ecx
  shl    %cl,%rdx
  mov    $0x4000,%eax
  sub    %rdx,%rax
  or     %rax,%rbx
  jmp    L22
```

assistant: ```c
unsigned long long flip_B7(const unsigned long long discs_player, const unsigned long long discs_opponent) {
  unsigned long long my_discs, opp_discs, r, flipped = 0ULL;
  my_discs = discs_player & 0X0102040810000000ULL;
  opp_discs = (discs_opponent & 0X0002040810200000ULL) | 0X00FDFBF7EFC00000ULL;
  r = (opp_discs + 0X0000000000200000ULL) & my_discs;
  if (r != 0) {
    flipped |= (r - 1) & 0X0002040810200000ULL;
  }
  my_discs = discs_player & 0X4040404040000000ULL;
  opp_discs = (discs_opponent & 0X0040404040400000ULL) | 0X3FBFBFBFBF800000ULL;
  r = (opp_discs + 0X0000000000400000ULL) & my_discs;
  if (r != 0) {
    flipped |= (r - 1) & 0X0040404040400000ULL;
  }
  my_discs = discs_player & 0X0000000000001F00ULL;
  r = ((my_discs << 1) + discs_opponent) & 0X0000000000004000ULL;
  if (r != 0) {
    flipped |= 0X0000000000004000ULL - (0X2ULL << last_bit(my_discs));
  }
  return flipped;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<flip_B7>:
  endbr64
  movabs $0x2040810200000,%rcx
  push   %r12
  mov    %rsi,%r12
  mov    %rsi,%rdx
  movabs $0xfdfbf7efc00000,%rax
  and    %rcx,%r12
  movabs $0x40404040400000,%rsi
  or     %rax,%r12
  movabs $0x102040810000000,%rax
  add    $0x200000,%r12
  and    %rdi,%r12
  and    %rax,%r12
  lea    -0x1(%r12),%rax
  and    %rcx,%rax
  test   %r12,%r12
  movabs $0x3fbfbfbfbf800000,%rcx
  cmovne %rax,%r12
  mov    %rdx,%rax
  and    %rsi,%rax
  or     %rcx,%rax
  movabs $0x4040404040000000,%rcx
  add    $0x400000,%rax
  and    %rdi,%rax
  and    %rcx,%rax
  je     L3
  sub    $0x1,%rax
  and    %rsi,%rax
  or     %rax,%r12
L3:
  and    $0x1f00,%edi
  lea    (%rdx,%rdi,2),%rax
  test   $0x40,%ah
  jne    L16
  mov    %r12,%rax
  pop    %r12
  ret
L16:
  call   <last_bit@plt>
  mov    $0x2,%edx
  mov    %eax,%ecx
  mov    $0x4000,%eax
  shl    %cl,%rdx
  sub    %rdx,%rax
  or     %rax,%r12
  mov    %r12,%rax
  pop    %r12
  ret
```

assistant: ```c
unsigned long long flip_B7(const unsigned long long discs_player, const unsigned long long discs_opponent) {
  unsigned long long my_discs, opp_discs, r, flipped = 0ULL;
  my_discs = discs_player & 0X0102040810000000ULL;
  opp_discs = (discs_opponent & 0X0002040810200000ULL) | 0X00FDFBF7EFC00000ULL;
  r = (opp_discs + 0X0000000000200000ULL) & my_discs;
  if (r != 0) {
    flipped |= (r - 1) & 0X0002040810200000ULL;
  }
  my_discs = discs_player & 0X4040404040000000ULL;
  opp_discs = (discs_opponent & 0X0040404040400000ULL) | 0X3FBFBFBFBF800000ULL;
  r = (opp_discs + 0X0000000000400000ULL) & my_discs;
  if (r != 0) {
    flipped |= (r - 1) & 0X0040404040400000ULL;
  }
  my_discs = discs_player & 0X0000000000001F00ULL;
  r = ((my_discs << 1) + discs_opponent) & 0X0000000000004000ULL;
  if (r != 0) {
    flipped |= 0X0000000000004000ULL - (0X2ULL << last_bit(my_discs));
  }
  return flipped;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<flip_B7>:
  endbr64
  movabs $0x2040810200000,%rcx
  push   %r12
  mov    %rsi,%r12
  mov    %rsi,%rdx
  movabs $0xfdfbf7efc00000,%rax
  and    %rcx,%r12
  movabs $0x40404040400000,%rsi
  or     %rax,%r12
  movabs $0x102040810000000,%rax
  add    $0x200000,%r12
  and    %rdi,%r12
  and    %rax,%r12
  lea    -0x1(%r12),%rax
  and    %rcx,%rax
  test   %r12,%r12
  movabs $0x3fbfbfbfbf800000,%rcx
  cmovne %rax,%r12
  mov    %rdx,%rax
  and    %rsi,%rax
  or     %rcx,%rax
  movabs $0x4040404040000000,%rcx
  add    $0x400000,%rax
  and    %rdi,%rax
  and    %rcx,%rax
  je     L2
  sub    $0x1,%rax
  and    %rsi,%rax
  or     %rax,%r12
L2:
  and    $0x1f00,%edi
  lea    (%rdx,%rdi,2),%rax
  test   $0x40,%ah
  jne    L1
  mov    %r12,%rax
  pop    %r12
  ret
L1:
  call   <last_bit@plt>
  mov    $0x2,%edx
  mov    %eax,%ecx
  mov    $0x4000,%eax
  shl    %cl,%rdx
  sub    %rdx,%rax
  or     %rax,%r12
  mov    %r12,%rax
  pop    %r12
  ret
```

assistant: ```c
unsigned long long flip_B7(const unsigned long long discs_player, const unsigned long long discs_opponent) {
  unsigned long long my_discs, opp_discs, r, flipped = 0ULL;
  my_discs = discs_player & 0X0102040810000000ULL;
  opp_discs = (discs_opponent & 0X0002040810200000ULL) | 0X00FDFBF7EFC00000ULL;
  r = (opp_discs + 0X0000000000200000ULL) & my_discs;
  if (r != 0) {
    flipped |= (r - 1) & 0X0002040810200000ULL;
  }
  my_discs = discs_player & 0X4040404040000000ULL;
  opp_discs = (discs_opponent & 0X0040404040400000ULL) | 0X3FBFBFBFBF800000ULL;
  r = (opp_discs + 0X0000000000400000ULL) & my_discs;
  if (r != 0) {
    flipped |= (r - 1) & 0X0040404040400000ULL;
  }
  my_discs = discs_player & 0X0000000000001F00ULL;
  r = ((my_discs << 1) + discs_opponent) & 0X0000000000004000ULL;
  if (r != 0) {
    flipped |= 0X0000000000004000ULL - (0X2ULL << last_bit(my_discs));
  }
  return flipped;
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<suma2d>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x18(%rbp)
  mov    %ecx,-0x24(%rbp)
  mov    %r8d,-0x28(%rbp)
  mov    %r9d,-0x2c(%rbp)
  pxor   %xmm0,%xmm0
  movss  %xmm0,-0x4(%rbp)
  mov    -0x2c(%rbp),%ecx
  mov    -0x28(%rbp),%edx
  mov    -0x24(%rbp),%esi
  mov    -0x18(%rbp),%eax
  mov    %eax,%edi
  call   <okarea2@plt>
  test   %eax,%eax
  jne    L25
  movss  -0x4(%rbp),%xmm0
  jmp    L24
L25:
  mov    -0x18(%rbp),%eax
  mov    %eax,-0xc(%rbp)
  jmp    L56
L22:
  mov    -0xc(%rbp),%edi
  mov    -0x2c(%rbp),%ecx
  mov    -0x20(%rbp),%rdx
  mov    -0x14(%rbp),%esi
  mov    0x18(%rbp),%rax
  mov    0x10(%rbp),%r9
  mov    %edi,%r8d
  mov    %rax,%rdi
  call   *%r9
  mov    -0x28(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  jmp    L11
L20:
  mov    -0x8(%rbp),%eax
  cltq
  shl    $0x2,%rax
  lea    -0x4(%rax),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  movss  (%rax),%xmm0
  movss  -0x4(%rbp),%xmm1
  addss  %xmm1,%xmm0
  movss  %xmm0,-0x4(%rbp)
  addl   $0x1,-0x8(%rbp)
L11:
  mov    -0x8(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jle    L20
  addl   $0x1,-0xc(%rbp)
L56:
  mov    -0xc(%rbp),%eax
  cmp    -0x24(%rbp),%eax
  jle    L22
  movss  -0x4(%rbp),%xmm0
L24:
  leave
  ret
```

assistant: ```c
float suma2d(int idev, float *x, int ilowb, int ihighb, int ilowa, int ihigha, int (*read2d)(void *, int, float *, int, int), void *userdata) {
  int i, j;
  float sum = 0.0;
  if (!okarea2(ilowb, ihighb, ilowa, ihigha))
    return sum;
  for (i = ilowb; i <= ihighb; i++) {
    read2d(userdata, idev, x, ihigha, i);
    for (j = ilowa; j <= ihigha; j++)
      sum += x[j - 1];
  }
  return sum;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<suma2d>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %edi,0xc(%rsp)
  mov    %rsi,%rbx
  mov    %edx,%r12d
  mov    %ecx,%r15d
  mov    %r8d,%r14d
  mov    %r9d,%r13d
  mov    %r9d,%ecx
  mov    %r8d,%edx
  mov    %r15d,%esi
  mov    %r12d,%edi
  call   <okarea2@plt>
  pxor   %xmm1,%xmm1
  movss  %xmm1,0x8(%rsp)
  test   %eax,%eax
  je     L52
  cmp    %r15d,%r12d
  jg     L48
  movslq %r14d,%rdx
  lea    (%rbx,%rdx,4),%rax
  mov    %rax,0x18(%rsp)
  mov    %r13d,%eax
  sub    %r14d,%eax
  add    %rdx,%rax
  lea    0x4(%rbx,%rax,4),%rbp
  mov    %rbx,0x10(%rsp)
  mov    0x60(%rsp),%rbx
L47:
  mov    %r12d,%r8d
  mov    %r13d,%ecx
  mov    0x10(%rsp),%rdx
  mov    0xc(%rsp),%esi
  mov    0x68(%rsp),%rdi
  call   *%rbx
  cmp    %r13d,%r14d
  jg     L5
  mov    0x18(%rsp),%rax
  movss  0x8(%rsp),%xmm0
L59:
  addss  -0x4(%rax),%xmm0
  add    $0x4,%rax
  cmp    %rbp,%rax
  jne    L59
  movss  %xmm0,0x8(%rsp)
L5:
  add    $0x1,%r12d
  cmp    %r12d,%r15d
  jge    L47
L52:
  movss  0x8(%rsp),%xmm0
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L48:
  pxor   %xmm3,%xmm3
  movss  %xmm3,0x8(%rsp)
  jmp    L52
```

assistant: ```c
float suma2d(int idev, float *x, int ilowb, int ihighb, int ilowa, int ihigha, int (*read2d)(void *, int, float *, int, int), void *userdata) {
  int i, j;
  float sum = 0.0;
  if (!okarea2(ilowb, ihighb, ilowa, ihigha))
    return sum;
  for (i = ilowb; i <= ihighb; i++) {
    read2d(userdata, idev, x, ihigha, i);
    for (j = ilowa; j <= ihigha; j++)
      sum += x[j - 1];
  }
  return sum;
}
```