ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 下面的汇编指令对应的C源代码是什么:

```asm
<__seed48_r>:
  endbr64
  push   %rbp
  mov    %rdi,%rbp
  mov    $0x8,%edx
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x8,%rsp
  mov    0x14(%rsi),%edi
  mov    (%rsi),%rsi
  call   <memcpy@plt>
  movzwl 0x4(%rbp),%edx
  mov    (%rbx),%rax
  mov    %dx,0x4(%rax)
  movzwl 0x2(%rbp),%edx
  mov    %dx,0x2(%rax)
  movzwl 0x0(%rbp),%edx
  mov    %dx,(%rax)
  mov    D7(%rip),%rax
  movl   $0x1,0x10(%rbx)
  mov    %rax,0x8(%rbx)
  add    $0x8,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  ret
```

tool_calls: name: retrieve_data
arguments: data_tag: D7
type: byte[8]

tool: {"D7": [0x6d,0xe6,0xec,0xde,0x0b,0x00,0x00,0x00]}

assistant: ```c
int __seed48_r(unsigned short int seed16v[3], struct drand48_data *buffer) {
  memcpy(buffer->__old_x, buffer->__x, sizeof(buffer->__x));
  buffer->__x[2] = seed16v[2];
  buffer->__x[1] = seed16v[1];
  buffer->__x[0] = seed16v[0];
  buffer->__a = 0x5deece66dull;
  buffer->__c = 0xb;
  buffer->__init = 1;
  return 0;
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<gfxEnd>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    $0x1,%edi
  call   <curs_set@plt>
  mov    $0x0,%eax
  call   <echo@plt>
  mov    $0x0,%eax
  call   <endwin@plt>
  nop
  pop    %rbp
  ret
```

assistant: ```c
void gfxEnd() {
  curs_set(1);
  echo();
  endwin();
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<gfxEnd>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x1,%edi
  call   <curs_set@plt>
  mov    $0x0,%eax
  call   <echo@plt>
  mov    $0x0,%eax
  call   <endwin@plt>
  add    $0x8,%rsp
  ret
```

assistant: ```c
void gfxEnd() {
  curs_set(1);
  echo();
  endwin();
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<gfxEnd>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x1,%edi
  call   <curs_set@plt>
  xor    %eax,%eax
  call   <echo@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  jmp    1070 <endwin@plt>
```

assistant: ```c
void gfxEnd() {
  curs_set(1);
  echo();
  endwin();
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<gfxEnd>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x1,%edi
  call   <curs_set@plt>
  xor    %eax,%eax
  call   <echo@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  jmp    1070 <endwin@plt>
```

assistant: ```c
void gfxEnd() {
  curs_set(1);
  echo();
  endwin();
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %edi,-0x4(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    -0x10(%rbp),%rax
  add    $0x8,%rax
  mov    (%rax),%rax
  mov    %rax,%rdi
  call   <font_file_read@plt>
  mov    $0x2,%edi
  call   <font_scale_height@plt>
  lea    D11(%rip),%rax
  mov    %rax,%rdi
  call   <font_rename@plt>
  lea    D17(%rip),%rax
  mov    %rax,%rdi
  call   <font_file_write@plt>
  mov    $0x0,%eax
  leave
  ret
```

tool_calls: name: parse_data
arguments: data_tag: D11
datatype: string
name: parse_data
arguments: data_tag: D17
datatype: string

tool: D11: test

tool: 

assistant: ```c
int main(int argc, char *argv[]) {
  font_file_read(argv[1]);
  font_scale_height(2);
  font_rename("test");
  font_file_write("");
  return (0);
}
```
user: What is the c source code of the assembly code below?

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  mov    0x8(%rsi),%rdi
  call   <font_file_read@plt>
  mov    $0x2,%edi
  call   <font_scale_height@plt>
  lea    D3(%rip),%rdi
  call   <font_rename@plt>
  lea    D8(%rip),%rdi
  call   <font_file_write@plt>
  mov    $0x0,%eax
  add    $0x8,%rsp
  ret
```

tool_calls: name: retrieve_data
arguments: label: D3
data_type: string
name: retrieve_data
arguments: label: D8
data_type: string

tool: D3: test

tool: 

assistant: ```c
int main(int argc, char *argv[]) {
  font_file_read(argv[1]);
  font_scale_height(2);
  font_rename("test");
  font_file_write("");
  return (0);
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  mov    0x8(%rsi),%rdi
  call   <font_file_read@plt>
  mov    $0x2,%edi
  call   <font_scale_height@plt>
  lea    D19(%rip),%rdi
  call   <font_rename@plt>
  lea    D16(%rip),%rdi
  call   <font_file_write@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  ret
```

tool_calls: name: parse_data
arguments: data_tag: D19
type: string
name: parse_data
arguments: data_tag: D16
type: string

tool: D19: test

tool: 

assistant: ```c
int main(int argc, char *argv[]) {
  font_file_read(argv[1]);
  font_scale_height(2);
  font_rename("test");
  font_file_write("");
  return (0);
}
```
user: What is the c source code of the assembly code below?

```asm
<main>:
  endbr64
  sub    $0x8,%rsp
  mov    0x8(%rsi),%rdi
  call   <font_file_read@plt>
  mov    $0x2,%edi
  call   <font_scale_height@plt>
  lea    D17(%rip),%rdi
  call   <font_rename@plt>
  lea    D10(%rip),%rdi
  call   <font_file_write@plt>
  xor    %eax,%eax
  add    $0x8,%rsp
  ret
```

tool_calls: name: unpack_data
arguments: label: D17
type_guessed: string
name: unpack_data
arguments: label: D10
type_guessed: string

tool: D17: test

tool: 

assistant: ```c
int main(int argc, char *argv[]) {
  font_file_read(argv[1]);
  font_scale_height(2);
  font_rename("test");
  font_file_write("");
  return (0);
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<varint_verify>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %rsi,-0x40(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0x24(%rbp)
  mov    -0x24(%rbp),%eax
  and    $0x1,%eax
  test   %eax,%eax
  sete   %al
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  lea    -0x12(%rbp),%rdx
  mov    -0x38(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <packvarint@plt>
  mov    -0x24(%rbp),%edx
  shr    %edx
  mov    %edx,%ecx
  lea    -0x12(%rbp),%rdx
  add    %rcx,%rdx
  cmp    %rdx,%rax
  sete   %al
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  lea    -0x12(%rbp),%rax
  add    $0xa,%rax
  lea    -0x20(%rbp),%rdx
  lea    -0x12(%rbp),%rcx
  mov    %rax,%rsi
  mov    %rcx,%rdi
  call   <unpackvarint@plt>
  mov    -0x24(%rbp),%edx
  shr    %edx
  mov    %edx,%ecx
  lea    -0x12(%rbp),%rdx
  add    %rcx,%rdx
  cmp    %rdx,%rax
  sete   %al
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0x20(%rbp),%rax
  cmp    %rax,-0x38(%rbp)
  sete   %al
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  movl   $0x0,-0x28(%rbp)
  jmp    L15
L4:
  mov    -0x28(%rbp),%eax
  movzbl -0x12(%rbp,%rax,1),%eax
  movzbl %al,%edx
  lea    -0x15(%rbp),%rax
  mov    %edx,%ecx
  lea    D2(%rip),%rdx
  mov    $0x3,%esi
  mov    %rax,%rdi
  call   <snprintf@plt>
  movzbl -0x15(%rbp),%edx
  mov    -0x28(%rbp),%eax
  add    %eax,%eax
  mov    %eax,%ecx
  mov    -0x40(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  cmp    %al,%dl
  sete   %al
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  movzbl -0x14(%rbp),%edx
  mov    -0x28(%rbp),%eax
  add    %eax,%eax
  add    $0x1,%eax
  mov    %eax,%ecx
  mov    -0x40(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  cmp    %al,%dl
  sete   %al
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  addl   $0x1,-0x28(%rbp)
L15:
  mov    -0x24(%rbp),%eax
  shr    %eax
  cmp    %eax,-0x28(%rbp)
  jb     L4
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L12
  call   <__stack_chk_fail@plt>
L12:
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D2
type_guessed: string

tool: D2: %02x

assistant: ```c
void varint_verify(uint64_t value, const char *representation) {
  const unsigned sz = strlen(representation);
  assert(sz % 2 == 0);
  unsigned char buf[10];
  uint64_t eulav;
  unsigned int i;
  assert(packvarint(value, buf) == buf + sz / 2);
  assert(unpackvarint(buf, buf + 10, &eulav) == buf + sz / 2);
  assert(value == eulav);
  for (i = 0; i < sz / 2; ++i) {
    char hex[3];
    snprintf(hex, 3, "%02x", buf[i] & 0xff);
    assert(hex[0] == representation[2 * i]);
    assert(hex[1] == representation[2 * i + 1]);
  }
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<varint_verify>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %rdi,%r13
  mov    %rsi,%rbp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    %rsi,%rdi
  call   <strlen@plt>
  mov    %eax,%ebx
  mov    %eax,%edi
  xor    $0x1,%edi
  and    $0x1,%edi
  call   <assert@plt>
  lea    0xe(%rsp),%r15
  mov    %r15,%rsi
  mov    %r13,%rdi
  call   <packvarint@plt>
  mov    %ebx,%r12d
  shr    %r12d
  mov    %r12d,%r14d
  add    %r15,%r14
  cmp    %rax,%r14
  sete   %dil
  movzbl %dil,%edi
  call   <assert@plt>
  mov    %rsp,%rdx
  lea    0x18(%rsp),%rsi
  mov    %r15,%rdi
  call   <unpackvarint@plt>
  cmp    %rax,%r14
  sete   %dil
  movzbl %dil,%edi
  call   <assert@plt>
  cmp    %r13,(%rsp)
  sete   %dil
  movzbl %dil,%edi
  call   <assert@plt>
  cmp    $0x1,%ebx
  jbe    L12
  mov    $0x0,%ebx
  lea    D3(%rip),%r13
L6:
  movzbl 0xe(%rsp,%rbx,1),%ecx
  lea    0xb(%rsp),%rdi
  mov    %r13,%rdx
  mov    $0x3,%esi
  call   <snprintf@plt>
  movzbl 0x0(%rbp,%rbx,2),%eax
  cmp    %al,0xb(%rsp)
  sete   %dil
  movzbl %dil,%edi
  call   <assert@plt>
  movzbl 0x1(%rbp,%rbx,2),%eax
  cmp    %al,0xc(%rsp)
  sete   %dil
  movzbl %dil,%edi
  call   <assert@plt>
  add    $0x1,%rbx
  cmp    %ebx,%r12d
  ja     L6
L12:
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L10
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L10:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: tag: D3
datatype: string

tool: D3: %02x

assistant: ```c
void varint_verify(uint64_t value, const char *representation) {
  const unsigned sz = strlen(representation);
  assert(sz % 2 == 0);
  unsigned char buf[10];
  uint64_t eulav;
  unsigned int i;
  assert(packvarint(value, buf) == buf + sz / 2);
  assert(unpackvarint(buf, buf + 10, &eulav) == buf + sz / 2);
  assert(value == eulav);
  for (i = 0; i < sz / 2; ++i) {
    char hex[3];
    snprintf(hex, 3, "%02x", buf[i] & 0xff);
    assert(hex[0] == representation[2 * i]);
    assert(hex[1] == representation[2 * i + 1]);
  }
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<varint_verify>:
  endbr64
  push   %r15
  push   %r14
  mov    %rdi,%r14
  mov    %rsi,%rdi
  push   %r13
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    0xe(%rsp),%r12
  call   <strlen@plt>
  mov    %eax,%edi
  mov    %eax,%ebx
  not    %edi
  shr    %ebx
  and    $0x1,%edi
  mov    %ebx,%r13d
  call   <assert@plt>
  mov    %r12,%rsi
  mov    %r14,%rdi
  lea    (%r12,%r13,1),%r15
  call   <packvarint@plt>
  xor    %edi,%edi
  cmp    %rax,%r15
  sete   %dil
  call   <assert@plt>
  mov    %rsp,%rdx
  lea    0x18(%rsp),%rsi
  mov    %r12,%rdi
  call   <unpackvarint@plt>
  xor    %edi,%edi
  cmp    %rax,%r15
  sete   %dil
  call   <assert@plt>
  xor    %edi,%edi
  cmp    %r14,(%rsp)
  sete   %dil
  call   <assert@plt>
  test   %ebx,%ebx
  je     L2
  xor    %ebx,%ebx
  lea    0xb(%rsp),%r15
  lea    D4(%rip),%r14
  nopl   0x0(%rax)
L16:
  movzbl (%r12,%rbx,1),%ecx
  mov    %r14,%rdx
  mov    $0x3,%esi
  mov    %r15,%rdi
  call   <snprintf@plt>
  movzbl 0x0(%rbp,%rbx,2),%eax
  xor    %edi,%edi
  cmp    %al,0xb(%rsp)
  sete   %dil
  call   <assert@plt>
  movzbl 0x1(%rbp,%rbx,2),%eax
  xor    %edi,%edi
  cmp    %al,0xc(%rsp)
  sete   %dil
  add    $0x1,%rbx
  call   <assert@plt>
  cmp    %rbx,%r13
  jne    L16
L2:
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L29
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L29:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: retrieve_data
arguments: data_label: D4
type_infered: string

tool: D4: %02x

assistant: ```c
void varint_verify(uint64_t value, const char *representation) {
  const unsigned sz = strlen(representation);
  assert(sz % 2 == 0);
  unsigned char buf[10];
  uint64_t eulav;
  unsigned int i;
  assert(packvarint(value, buf) == buf + sz / 2);
  assert(unpackvarint(buf, buf + 10, &eulav) == buf + sz / 2);
  assert(value == eulav);
  for (i = 0; i < sz / 2; ++i) {
    char hex[3];
    snprintf(hex, 3, "%02x", buf[i] & 0xff);
    assert(hex[0] == representation[2 * i]);
    assert(hex[1] == representation[2 * i + 1]);
  }
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<varint_verify>:
  endbr64
  push   %r15
  push   %r14
  mov    %rdi,%r14
  mov    %rsi,%rdi
  push   %r13
  push   %r12
  push   %rbp
  mov    %rsi,%rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  lea    0xe(%rsp),%r12
  call   <strlen@plt>
  mov    %eax,%edi
  mov    %eax,%ebx
  not    %edi
  shr    %ebx
  and    $0x1,%edi
  mov    %ebx,%r13d
  call   <assert@plt>
  mov    %r12,%rsi
  mov    %r14,%rdi
  lea    (%r12,%r13,1),%r15
  call   <packvarint@plt>
  xor    %edi,%edi
  cmp    %rax,%r15
  sete   %dil
  call   <assert@plt>
  mov    %rsp,%rdx
  lea    0x18(%rsp),%rsi
  mov    %r12,%rdi
  call   <unpackvarint@plt>
  xor    %edi,%edi
  cmp    %rax,%r15
  sete   %dil
  call   <assert@plt>
  xor    %edi,%edi
  cmp    %r14,(%rsp)
  sete   %dil
  call   <assert@plt>
  test   %ebx,%ebx
  je     L2
  xor    %ebx,%ebx
  lea    0xb(%rsp),%r15
  lea    D6(%rip),%r14
  nopl   0x0(%rax)
L12:
  movzbl (%r12,%rbx,1),%ecx
  mov    %r14,%rdx
  mov    $0x3,%esi
  mov    %r15,%rdi
  call   <snprintf@plt>
  movzbl 0x0(%rbp,%rbx,2),%eax
  xor    %edi,%edi
  cmp    %al,0xb(%rsp)
  sete   %dil
  call   <assert@plt>
  movzbl 0x1(%rbp,%rbx,2),%eax
  xor    %edi,%edi
  cmp    %al,0xc(%rsp)
  sete   %dil
  add    $0x1,%rbx
  call   <assert@plt>
  cmp    %rbx,%r13
  jne    L12
L2:
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L4
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L4:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: label: D6
type: string

tool: D6: %02x

assistant: ```c
void varint_verify(uint64_t value, const char *representation) {
  const unsigned sz = strlen(representation);
  assert(sz % 2 == 0);
  unsigned char buf[10];
  uint64_t eulav;
  unsigned int i;
  assert(packvarint(value, buf) == buf + sz / 2);
  assert(unpackvarint(buf, buf + 10, &eulav) == buf + sz / 2);
  assert(value == eulav);
  for (i = 0; i < sz / 2; ++i) {
    char hex[3];
    snprintf(hex, 3, "%02x", buf[i] & 0xff);
    assert(hex[0] == representation[2 * i]);
    assert(hex[1] == representation[2 * i + 1]);
  }
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<cmp>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    %edx,-0x14(%rbp)
  mov    -0x14(%rbp),%edx
  mov    -0x8(%rbp),%rax
  mov    $0x1,%esi
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <decode@plt>
  lea    D14(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    D15(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  nop
  leave
  ret
```

tool_calls: name: parse_data
arguments: label: D14
type: string
name: parse_data
arguments: label: D15
type: string

tool: D14: srca = -srca;

tool: D15: dst = srca + srcb;

assistant: ```c
void cmp(p, a, s) struct h8_opcode *p;
char *a;
int s;
{
  decode(p, 1, s);
  printf("srca = -srca;\n");
  printf("dst = srca + srcb;\n");
}
```
user: 这段汇编代码用C语言表示是什么样的?

```asm
<cmp>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x1,%esi
  mov    $0x0,%eax
  call   <decode@plt>
  lea    D10(%rip),%rdi
  call   <puts@plt>
  lea    D8(%rip),%rdi
  call   <puts@plt>
  add    $0x8,%rsp
  ret
```

tool_calls: name: disassemble_data
arguments: data_tag: D10
type_guessed: string
name: disassemble_data
arguments: data_tag: D8
type_guessed: string

tool: D10: srca = -srca;

tool: D8: dst = srca + srcb;

assistant: ```c
void cmp(p, a, s) struct h8_opcode *p;
char *a;
int s;
{
  decode(p, 1, s);
  printf("srca = -srca;\n");
  printf("dst = srca + srcb;\n");
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<cmp>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x1,%esi
  xor    %eax,%eax
  call   <decode@plt>
  lea    D3(%rip),%rdi
  call   <puts@plt>
  lea    D14(%rip),%rdi
  add    $0x8,%rsp
  jmp    1060 <puts@plt>
```

tool_calls: name: parse_data
arguments: label: D3
type_guessed: string
name: parse_data
arguments: label: D14
type_guessed: string

tool: D3: srca = -srca;

tool: D14: dst = srca + srcb;

assistant: ```c
void cmp(p, a, s) struct h8_opcode *p;
char *a;
int s;
{
  decode(p, 1, s);
  printf("srca = -srca;\n");
  printf("dst = srca + srcb;\n");
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<cmp>:
  endbr64
  sub    $0x8,%rsp
  mov    $0x1,%esi
  xor    %eax,%eax
  call   <decode@plt>
  lea    D17(%rip),%rdi
  call   <puts@plt>
  lea    D18(%rip),%rdi
  add    $0x8,%rsp
  jmp    1060 <puts@plt>
```

tool_calls: name: parse_data
arguments: data_label: D17
datatype: string
name: parse_data
arguments: data_label: D18
datatype: string

tool: D17: srca = -srca;

tool: D18: dst = srca + srcb;

assistant: ```c
void cmp(p, a, s) struct h8_opcode *p;
char *a;
int s;
{
  decode(p, 1, s);
  printf("srca = -srca;\n");
  printf("dst = srca + srcb;\n");
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<mixcolumns>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  add    $0xffffffffffffff80,%rsp
  mov    %rdi,-0x78(%rbp)
  mov    %rsi,-0x80(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x78(%rbp),%rcx
  lea    -0x50(%rbp),%rax
  mov    $0x40,%edx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  movl   $0x0,-0x60(%rbp)
  jmp    L13
L49:
  movl   $0x0,-0x5c(%rbp)
  jmp    L2
L11:
  movl   $0x0,-0x64(%rbp)
  movl   $0x0,-0x58(%rbp)
  movl   $0x0,-0x54(%rbp)
  jmp    L25
L65:
  mov    -0x5c(%rbp),%eax
  cltq
  shl    $0x4,%rax
  mov    %rax,%rdx
  mov    -0x80(%rbp),%rax
  add    %rax,%rdx
  mov    -0x58(%rbp),%eax
  cltq
  mov    (%rdx,%rax,4),%edx
  mov    -0x54(%rbp),%eax
  lea    0x0(,%rax,4),%ecx
  mov    -0x60(%rbp),%eax
  add    %ecx,%eax
  cltq
  mov    -0x50(%rbp,%rax,4),%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <galois_multiply@plt>
  xor    %eax,-0x64(%rbp)
  addl   $0x1,-0x58(%rbp)
  addl   $0x1,-0x54(%rbp)
L25:
  cmpl   $0x3,-0x58(%rbp)
  jle    L65
  mov    -0x5c(%rbp),%eax
  lea    0x0(,%rax,4),%edx
  mov    -0x60(%rbp),%eax
  add    %edx,%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x78(%rbp),%rax
  add    %rax,%rdx
  mov    -0x64(%rbp),%eax
  mov    %eax,(%rdx)
  addl   $0x1,-0x5c(%rbp)
L2:
  cmpl   $0x3,-0x5c(%rbp)
  jle    L11
  addl   $0x1,-0x60(%rbp)
L13:
  cmpl   $0x3,-0x60(%rbp)
  jle    L49
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L33
  call   <__stack_chk_fail@plt>
L33:
  leave
  ret
```

assistant: ```c
void mixcolumns(uint16_t *state, const uint16_t matrix[4][4]) {
  uint16_t state_copy[(4 * 4)], value;
  int i, j, x, y;
  memcpy(state_copy, state, sizeof(state_copy));
  for (i = 0; i < 4; i++) {
    for (j = 0; j < 4; j++) {
      value = 0;
      for (x = 0, y = 0; x < 4; x++, y++) {
        value ^= galois_multiply(state_copy[y * 4 + i], matrix[j][x]);
      }
      state[j * 4 + i] = value;
    }
  }
}
```
user: 这段汇编代码用C语言表示是什么样的:

```asm
<mixcolumns>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %rdi,%r15
  mov    %rsi,(%rsp)
  mov    %fs:0x28,%rax
  mov    %rax,0x58(%rsp)
  xor    %eax,%eax
  lea    0x10(%rsp),%r14
  mov    $0x40,%edx
  mov    %rdi,%rsi
  mov    %r14,%rdi
  call   <memcpy@plt>
  movl   $0x0,0xc(%rsp)
L17:
  mov    $0x0,%r12d
L15:
  mov    (%rsp),%rax
  lea    (%rax,%r12,1),%r13
  mov    $0x0,%ebx
  mov    $0x0,%ebp
L30:
  mov    0x0(%r13,%rbx,4),%esi
  mov    %rbx,%rax
  shl    $0x4,%rax
  mov    (%r14,%rax,1),%edi
  call   <galois_multiply@plt>
  xor    %eax,%ebp
  add    $0x1,%rbx
  cmp    $0x4,%rbx
  jne    L30
  mov    %ebp,(%r15,%r12,1)
  add    $0x10,%r12
  cmp    $0x40,%r12
  jne    L15
  addl   $0x1,0xc(%rsp)
  mov    0xc(%rsp),%eax
  add    $0x4,%r15
  add    $0x4,%r14
  cmp    $0x4,%eax
  jne    L17
  mov    0x58(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L8
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L8:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void mixcolumns(uint16_t *state, const uint16_t matrix[4][4]) {
  uint16_t state_copy[(4 * 4)], value;
  int i, j, x, y;
  memcpy(state_copy, state, sizeof(state_copy));
  for (i = 0; i < 4; i++) {
    for (j = 0; j < 4; j++) {
      value = 0;
      for (x = 0, y = 0; x < 4; x++, y++) {
        value ^= galois_multiply(state_copy[y * 4 + i], matrix[j][x]);
      }
      state[j * 4 + i] = value;
    }
  }
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<mixcolumns>:
  endbr64
  push   %r15
  mov    $0x40,%edx
  push   %r14
  push   %r13
  mov    %rdi,%r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %rsi,(%rsp)
  lea    0x10(%rsp),%r12
  mov    %rdi,%rsi
  mov    %r12,%rdi
  mov    %fs:0x28,%rax
  mov    %rax,0x58(%rsp)
  xor    %eax,%eax
  call   <memcpy@plt>
  movl   $0x0,0xc(%rsp)
L20:
  xor    %ebp,%ebp
L1:
  mov    (%rsp),%rax
  xor    %ebx,%ebx
  xor    %r15d,%r15d
  lea    (%rax,%rbp,1),%r14
L31:
  mov    %rbx,%rax
  mov    (%r14,%rbx,4),%esi
  add    $0x1,%rbx
  shl    $0x4,%rax
  mov    (%r12,%rax,1),%edi
  call   <galois_multiply@plt>
  xor    %eax,%r15d
  cmp    $0x4,%rbx
  jne    L31
  mov    %r15d,0x0(%r13,%rbp,1)
  add    $0x10,%rbp
  cmp    $0x40,%rbp
  jne    L1
  addl   $0x1,0xc(%rsp)
  mov    0xc(%rsp),%eax
  add    $0x4,%r13
  add    $0x4,%r12
  cmp    $0x4,%eax
  jne    L20
  mov    0x58(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L24
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L24:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void mixcolumns(uint16_t *state, const uint16_t matrix[4][4]) {
  uint16_t state_copy[(4 * 4)], value;
  int i, j, x, y;
  memcpy(state_copy, state, sizeof(state_copy));
  for (i = 0; i < 4; i++) {
    for (j = 0; j < 4; j++) {
      value = 0;
      for (x = 0, y = 0; x < 4; x++, y++) {
        value ^= galois_multiply(state_copy[y * 4 + i], matrix[j][x]);
      }
      state[j * 4 + i] = value;
    }
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<mixcolumns>:
  endbr64
  push   %r15
  mov    $0x40,%edx
  push   %r14
  push   %r13
  mov    %rdi,%r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %rsi,(%rsp)
  lea    0x10(%rsp),%r12
  mov    %rdi,%rsi
  mov    %r12,%rdi
  mov    %fs:0x28,%rax
  mov    %rax,0x58(%rsp)
  xor    %eax,%eax
  call   <memcpy@plt>
  movl   $0x0,0xc(%rsp)
L27:
  xor    %ebp,%ebp
L21:
  mov    (%rsp),%rax
  xor    %ebx,%ebx
  xor    %r15d,%r15d
  lea    (%rax,%rbp,1),%r14
L7:
  mov    %rbx,%rax
  mov    (%r14,%rbx,4),%esi
  add    $0x1,%rbx
  shl    $0x4,%rax
  mov    (%r12,%rax,1),%edi
  call   <galois_multiply@plt>
  xor    %eax,%r15d
  cmp    $0x4,%rbx
  jne    L7
  mov    %r15d,0x0(%r13,%rbp,1)
  add    $0x10,%rbp
  cmp    $0x40,%rbp
  jne    L21
  addl   $0x1,0xc(%rsp)
  mov    0xc(%rsp),%eax
  add    $0x4,%r13
  add    $0x4,%r12
  cmp    $0x4,%eax
  jne    L27
  mov    0x58(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L12
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L12:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void mixcolumns(uint16_t *state, const uint16_t matrix[4][4]) {
  uint16_t state_copy[(4 * 4)], value;
  int i, j, x, y;
  memcpy(state_copy, state, sizeof(state_copy));
  for (i = 0; i < 4; i++) {
    for (j = 0; j < 4; j++) {
      value = 0;
      for (x = 0, y = 0; x < 4; x++, y++) {
        value ^= galois_multiply(state_copy[y * 4 + i], matrix[j][x]);
      }
      state[j * 4 + i] = value;
    }
  }
}
```