ylfeng/ReF-Decompile-dataset huggingface dataset:
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<crossVectorsNorm>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    -0x28(%rbp),%rdx
  mov    -0x20(%rbp),%rcx
  mov    -0x18(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <crossVectors@plt>
  mov    -0x28(%rbp),%rax
  movss  (%rax),%xmm1
  mov    -0x28(%rbp),%rax
  movss  (%rax),%xmm0
  mulss  %xmm0,%xmm1
  mov    -0x28(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm2
  mov    -0x28(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  mov    -0x28(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm2
  mov    -0x28(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm0
  mulss  %xmm2,%xmm0
  addss  %xmm0,%xmm1
  movd   %xmm1,%eax
  movd   %eax,%xmm0
  call   <sqrt@plt>
  pxor   %xmm0,%xmm0
  cvtsi2ss %rax,%xmm0
  movss  %xmm0,-0x4(%rbp)
  pxor   %xmm0,%xmm0
  ucomiss -0x4(%rbp),%xmm0
  jp     L29
  pxor   %xmm0,%xmm0
  ucomiss -0x4(%rbp),%xmm0
  jne    L29
  lea    D7(%rip),%rax
  mov    %rax,%rdi
  call   <mexWarnMsgTxt@plt>
  jmp    L24
L29:
  mov    -0x28(%rbp),%rax
  movss  (%rax),%xmm0
  divss  -0x4(%rbp),%xmm0
  mov    -0x28(%rbp),%rax
  movss  %xmm0,(%rax)
  mov    -0x28(%rbp),%rax
  add    $0x4,%rax
  movss  (%rax),%xmm0
  mov    -0x28(%rbp),%rax
  add    $0x4,%rax
  divss  -0x4(%rbp),%xmm0
  movss  %xmm0,(%rax)
  mov    -0x28(%rbp),%rax
  add    $0x8,%rax
  movss  (%rax),%xmm0
  mov    -0x28(%rbp),%rax
  add    $0x8,%rax
  divss  -0x4(%rbp),%xmm0
  movss  %xmm0,(%rax)
L24:
  nop
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: label: D7
type: string

tool: D7: Normal equal to zero! But should be ok.

assistant: ```c
void crossVectorsNorm(const float *u, const float *v, float *res) {
  float norm_res;
  crossVectors(u, v, res);
  norm_res = (float)sqrt((float)(res[0] * res[0] + res[1] * res[1] + res[2] * res[2]));
  if (norm_res == 0) {
    mexWarnMsgTxt("Normal equal to zero! But should be ok.");
  } else {
    res[0] = res[0] / norm_res;
    res[1] = res[1] / norm_res;
    res[2] = res[2] / norm_res;
  }
}
```
user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<crossVectorsNorm>:
  endbr64
  push   %rbx
  mov    %rdx,%rbx
  call   <crossVectors@plt>
  movss  (%rbx),%xmm0
  movss  0x4(%rbx),%xmm2
  movss  0x8(%rbx),%xmm1
  mulss  %xmm0,%xmm0
  mulss  %xmm2,%xmm2
  addss  %xmm2,%xmm0
  mulss  %xmm1,%xmm1
  addss  %xmm1,%xmm0
  call   <sqrt@plt>
  pxor   %xmm0,%xmm0
  cvtsi2ss %rax,%xmm0
  ucomiss D13(%rip),%xmm0
  jp     L25
  je     L14
L25:
  movss  (%rbx),%xmm1
  divss  %xmm0,%xmm1
  movss  %xmm1,(%rbx)
  movss  0x4(%rbx),%xmm1
  divss  %xmm0,%xmm1
  movss  %xmm1,0x4(%rbx)
  movss  0x8(%rbx),%xmm1
  divss  %xmm0,%xmm1
  movss  %xmm1,0x8(%rbx)
L12:
  pop    %rbx
  ret
L14:
  lea    D10(%rip),%rdi
  call   <mexWarnMsgTxt@plt>
  jmp    L12
```

tool_calls: name: unpack_data
arguments: data_tag: D13
type_infered: byte[4]
name: unpack_data
arguments: data_tag: D10
type_infered: string

tool: {"D13": [0x00,0x00,0x00,0x00]}

tool: D10: Normal equal to zero! But should be ok.

assistant: ```c
void crossVectorsNorm(const float *u, const float *v, float *res) {
  float norm_res;
  crossVectors(u, v, res);
  norm_res = (float)sqrt((float)(res[0] * res[0] + res[1] * res[1] + res[2] * res[2]));
  if (norm_res == 0) {
    mexWarnMsgTxt("Normal equal to zero! But should be ok.");
  } else {
    res[0] = res[0] / norm_res;
    res[1] = res[1] / norm_res;
    res[2] = res[2] / norm_res;
  }
}
```
user: What would the C source look like for the assembly code provided here:

```asm
<crossVectorsNorm>:
  endbr64
  push   %rbx
  mov    %rdx,%rbx
  call   <crossVectors@plt>
  movss  (%rbx),%xmm0
  movss  0x4(%rbx),%xmm2
  movss  0x8(%rbx),%xmm1
  mulss  %xmm2,%xmm2
  mulss  %xmm0,%xmm0
  mulss  %xmm1,%xmm1
  addss  %xmm2,%xmm0
  addss  %xmm1,%xmm0
  call   <sqrt@plt>
  pxor   %xmm0,%xmm0
  cvtsi2ss %rax,%xmm0
  ucomiss D0(%rip),%xmm0
  jp     L15
  je     L9
L15:
  movss  (%rbx),%xmm1
  divss  %xmm0,%xmm1
  movss  %xmm1,(%rbx)
  movss  0x4(%rbx),%xmm1
  divss  %xmm0,%xmm1
  movss  %xmm1,0x4(%rbx)
  movss  0x8(%rbx),%xmm1
  divss  %xmm0,%xmm1
  movss  %xmm1,0x8(%rbx)
  pop    %rbx
  ret
  nopw   0x0(%rax,%rax,1)
L9:
  lea    D14(%rip),%rdi
  pop    %rbx
  jmp    1080 <mexWarnMsgTxt@plt>
```

tool_calls: name: read_data
arguments: data_tag: D0
data_type: byte[4]
name: read_data
arguments: data_tag: D14
data_type: string

tool: {"D0": [0x00,0x00,0x00,0x00]}

tool: D14: Normal equal to zero! But should be ok.

assistant: ```c
void crossVectorsNorm(const float *u, const float *v, float *res) {
  float norm_res;
  crossVectors(u, v, res);
  norm_res = (float)sqrt((float)(res[0] * res[0] + res[1] * res[1] + res[2] * res[2]));
  if (norm_res == 0) {
    mexWarnMsgTxt("Normal equal to zero! But should be ok.");
  } else {
    res[0] = res[0] / norm_res;
    res[1] = res[1] / norm_res;
    res[2] = res[2] / norm_res;
  }
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<crossVectorsNorm>:
  endbr64
  push   %rbx
  mov    %rdx,%rbx
  call   <crossVectors@plt>
  movss  (%rbx),%xmm0
  movss  0x4(%rbx),%xmm2
  movss  0x8(%rbx),%xmm1
  mulss  %xmm2,%xmm2
  mulss  %xmm0,%xmm0
  mulss  %xmm1,%xmm1
  addss  %xmm2,%xmm0
  addss  %xmm1,%xmm0
  call   <sqrt@plt>
  pxor   %xmm1,%xmm1
  cvtsi2ss %rax,%xmm1
  ucomiss D9(%rip),%xmm1
  jp     L0
  je     L15
L0:
  movss  (%rbx),%xmm0
  movss  0x4(%rbx),%xmm2
  divss  %xmm1,%xmm0
  divss  %xmm1,%xmm2
  unpcklps %xmm2,%xmm0
  movlps %xmm0,(%rbx)
  movss  0x8(%rbx),%xmm0
  divss  %xmm1,%xmm0
  movss  %xmm0,0x8(%rbx)
  pop    %rbx
  ret
  nop
L15:
  lea    D17(%rip),%rdi
  pop    %rbx
  jmp    1080 <mexWarnMsgTxt@plt>
```

tool_calls: name: parse_data
arguments: label: D9
data_type: byte[4]
name: parse_data
arguments: label: D17
data_type: string

tool: {"D9": [0x00,0x00,0x00,0x00]}

tool: D17: Normal equal to zero! But should be ok.

assistant: ```c
void crossVectorsNorm(const float *u, const float *v, float *res) {
  float norm_res;
  crossVectors(u, v, res);
  norm_res = (float)sqrt((float)(res[0] * res[0] + res[1] * res[1] + res[2] * res[2]));
  if (norm_res == 0) {
    mexWarnMsgTxt("Normal equal to zero! But should be ok.");
  } else {
    res[0] = res[0] / norm_res;
    res[1] = res[1] / norm_res;
    res[2] = res[2] / norm_res;
  }
}
```
user: Translate the below assembly code into C programming language:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0xffffffff,-0x10(%rbp)
  movl   $0x0,-0xc(%rbp)
  jmp    L22
L11:
  lea    -0x18(%rbp),%rax
  mov    %rax,%rsi
  lea    D17(%rip),%rax
  mov    %rax,%rdi
  call   <scanf@plt>
  mov    -0x18(%rbp),%eax
  cmp    %eax,-0x10(%rbp)
  jge    L13
  mov    -0x18(%rbp),%eax
  mov    %eax,-0x10(%rbp)
  mov    -0xc(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,-0x14(%rbp)
L13:
  addl   $0x1,-0xc(%rbp)
L22:
  cmpl   $0x63,-0xc(%rbp)
  jle    L11
  mov    -0x14(%rbp),%edx
  mov    -0x10(%rbp),%eax
  mov    %eax,%esi
  lea    D15(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L21
  call   <__stack_chk_fail@plt>
L21:
  leave
  ret
```

tool_calls: name: read_data
arguments: data_label: D17
type_guessed: string
name: read_data
arguments: data_label: D15
type_guessed: string

tool: D17: %d

tool: D15: %d
%d


assistant: ```c
int main() {
  int highestPosition, highestValue = -1;
  int i;
  int num;
  for (i = 0; i < 100; i++) {
    scanf("%d", &num);
    if (num > highestValue) {
      highestValue = num;
      highestPosition = i + 1;
    }
  }
  printf("%d\n%d\n", highestValue, highestPosition);
  return 0;
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<main>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  mov    $0x1,%ebx
  mov    $0xffffffff,%ebp
  lea    D6(%rip),%r12
  jmp    L47
L22:
  add    $0x1,%ebx
  cmp    $0x65,%ebx
  je     L14
L47:
  lea    0x4(%rsp),%rsi
  mov    %r12,%rdi
  call   <scanf@plt>
  mov    0x4(%rsp),%eax
  cmp    %ebp,%eax
  jle    L22
  mov    %ebx,%r13d
  mov    %eax,%ebp
  jmp    L22
L14:
  mov    %r13d,%edx
  mov    %ebp,%esi
  lea    D9(%rip),%rdi
  call   <printf@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L44
  mov    $0x0,%eax
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L44:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_label: D6
datatype: string
name: unpack_data
arguments: data_label: D9
datatype: string

tool: D6: %d

tool: D9: %d
%d


assistant: ```c
int main() {
  int highestPosition, highestValue = -1;
  int i;
  int num;
  for (i = 0; i < 100; i++) {
    scanf("%d", &num);
    if (num > highestValue) {
      highestValue = num;
      highestPosition = i + 1;
    }
  }
  printf("%d\n%d\n", highestValue, highestPosition);
  return 0;
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<main>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  lea    D18(%rip),%r12
  push   %rbp
  mov    $0xffffffff,%ebp
  push   %rbx
  xor    %ebx,%ebx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%r13
  nopl   0x0(%rax,%rax,1)
L13:
  mov    %r13,%rsi
  mov    %r12,%rdi
  add    $0x1,%ebx
  call   <scanf@plt>
  mov    0x4(%rsp),%eax
  cmp    %ebp,%eax
  jle    L10
  mov    %eax,%ebp
  mov    %ebx,%r14d
L10:
  cmp    $0x64,%ebx
  jne    L13
  mov    %r14d,%edx
  mov    %ebp,%esi
  lea    D6(%rip),%rdi
  call   <printf@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L23
  add    $0x10,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L23:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_tag: D18
type_guessed: string
name: unpack_data
arguments: data_tag: D6
type_guessed: string

tool: D18: %d

tool: D6: %d
%d


assistant: ```c
int main() {
  int highestPosition, highestValue = -1;
  int i;
  int num;
  for (i = 0; i < 100; i++) {
    scanf("%d", &num);
    if (num > highestValue) {
      highestValue = num;
      highestPosition = i + 1;
    }
  }
  printf("%d\n%d\n", highestValue, highestPosition);
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<main>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  lea    D17(%rip),%r12
  push   %rbp
  mov    $0xffffffff,%ebp
  push   %rbx
  xor    %ebx,%ebx
  sub    $0x10,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  lea    0x4(%rsp),%r13
  nopl   0x0(%rax,%rax,1)
L27:
  mov    %r13,%rsi
  mov    %r12,%rdi
  add    $0x1,%ebx
  call   <scanf@plt>
  mov    0x4(%rsp),%eax
  cmp    %ebp,%eax
  jle    L26
  mov    %eax,%ebp
  mov    %ebx,%r14d
L26:
  cmp    $0x64,%ebx
  jne    L27
  mov    %r14d,%edx
  mov    %ebp,%esi
  lea    D11(%rip),%rdi
  call   <printf@plt>
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L5
  add    $0x10,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L5:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: label: D17
type_infered: string
name: read_data
arguments: label: D11
type_infered: string

tool: D17: %d

tool: D11: %d
%d


assistant: ```c
int main() {
  int highestPosition, highestValue = -1;
  int i;
  int num;
  for (i = 0; i < 100; i++) {
    scanf("%d", &num);
    if (num > highestValue) {
      highestValue = num;
      highestPosition = i + 1;
    }
  }
  printf("%d\n%d\n", highestValue, highestPosition);
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<copy_block>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x430,%rsp
  mov    %edi,-0x424(%rbp)
  mov    %esi,-0x428(%rbp)
  mov    %rdx,-0x430(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movq   $0x0,-0x418(%rbp)
  jmp    L50
L76:
  mov    -0x420(%rbp),%rdx
  lea    -0x410(%rbp),%rcx
  mov    -0x424(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <write_block@plt>
  cmp    %rax,-0x420(%rbp)
  jle    L71
  mov    $0xffffffffffffffff,%rax
  jmp    L24
L71:
  mov    -0x420(%rbp),%rax
  add    %rax,-0x418(%rbp)
  mov    -0x420(%rbp),%rax
  sub    %rax,-0x430(%rbp)
L50:
  cmpq   $0x0,-0x430(%rbp)
  je     L20
  mov    -0x430(%rbp),%rax
  mov    $0x400,%edx
  cmp    %rdx,%rax
  cmova  %rdx,%rax
  mov    %eax,%edx
  lea    -0x410(%rbp),%rcx
  mov    -0x428(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <read_block@plt>
  mov    %rax,-0x420(%rbp)
  cmpq   $0x0,-0x420(%rbp)
  jg     L76
L20:
  cmpq   $0x0,-0x420(%rbp)
  jns    L37
  mov    -0x420(%rbp),%rax
  jmp    L24
L37:
  mov    -0x418(%rbp),%rax
L24:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L15
  call   <__stack_chk_fail@plt>
L15:
  leave
  ret
```

assistant: ```c
ssize_t copy_block(int fd_out, int fd_in, size_t nbyte) {
  char buffer[(1024)];
  ssize_t rd;
  size_t total;
  total = 0;
  while (nbyte > 0 && (rd = read_block(fd_in, buffer, nbyte > sizeof(buffer) ? sizeof(buffer) : nbyte)) > 0) {
    if (write_block(fd_out, buffer, rd) < rd) {
      return -1;
    }
    total += rd;
    nbyte -= rd;
  }
  if (rd < 0) {
    return rd;
  } else {
    return total;
  }
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<copy_block>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x418,%rsp
  mov    %edi,%r15d
  mov    %esi,%r14d
  mov    %rdx,%rbp
  mov    %fs:0x28,%rax
  mov    %rax,0x408(%rsp)
  xor    %eax,%eax
  mov    $0x0,%r13d
  mov    %rsp,%r12
  test   %rdx,%rdx
  je     L8
L42:
  mov    $0x400,%edx
  cmp    %rdx,%rbp
  cmovbe %rbp,%rdx
  mov    %r12,%rsi
  mov    %r14d,%edi
  call   <read_block@plt>
  mov    %rax,%rbx
  test   %rax,%rax
  jle    L34
  mov    %rbx,%rdx
  mov    %r12,%rsi
  mov    %r15d,%edi
  call   <write_block@plt>
  cmp    %rbx,%rax
  jl     L20
  add    %rbx,%r13
  sub    %rbx,%rbp
  jne    L42
L63:
  mov    %r13,%rbx
L47:
  mov    0x408(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L61
  mov    %rbx,%rax
  add    $0x418,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L8:
  mov    %rdx,%r13
  mov    $0x0,%ebx
L34:
  test   %rbx,%rbx
  js     L47
  jmp    L63
L20:
  mov    $0xffffffffffffffff,%rbx
  jmp    L47
L61:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
ssize_t copy_block(int fd_out, int fd_in, size_t nbyte) {
  char buffer[(1024)];
  ssize_t rd;
  size_t total;
  total = 0;
  while (nbyte > 0 && (rd = read_block(fd_in, buffer, nbyte > sizeof(buffer) ? sizeof(buffer) : nbyte)) > 0) {
    if (write_block(fd_out, buffer, rd) < rd) {
      return -1;
    }
    total += rd;
    nbyte -= rd;
  }
  if (rd < 0) {
    return rd;
  } else {
    return total;
  }
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<copy_block>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  xor    %r13d,%r13d
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  push   %rbx
  sub    $0x418,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x408(%rsp)
  xor    %eax,%eax
  test   %rdx,%rdx
  je     L39
  mov    %edi,%r15d
  mov    %esi,%r14d
  mov    %rdx,%rbx
  mov    %rsp,%rbp
  jmp    L33
  nopl   0x0(%rax)
L78:
  mov    %r12,%rdx
  mov    %rbp,%rsi
  mov    %r15d,%edi
  call   <write_block@plt>
  cmp    %r12,%rax
  jl     L54
  add    %r12,%r13
  sub    %r12,%rbx
  je     L84
L33:
  mov    $0x400,%edx
  mov    %rbp,%rsi
  mov    %r14d,%edi
  cmp    %rdx,%rbx
  cmovbe %rbx,%rdx
  call   <read_block@plt>
  mov    %rax,%r12
  test   %rax,%rax
  jg     L78
L39:
  test   %r12,%r12
  je     L84
L43:
  mov    0x408(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L87
  add    $0x418,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nop
L84:
  mov    %r13,%r12
  jmp    L43
  nopl   (%rax)
L54:
  mov    $0xffffffffffffffff,%r12
  jmp    L43
L87:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
ssize_t copy_block(int fd_out, int fd_in, size_t nbyte) {
  char buffer[(1024)];
  ssize_t rd;
  size_t total;
  total = 0;
  while (nbyte > 0 && (rd = read_block(fd_in, buffer, nbyte > sizeof(buffer) ? sizeof(buffer) : nbyte)) > 0) {
    if (write_block(fd_out, buffer, rd) < rd) {
      return -1;
    }
    total += rd;
    nbyte -= rd;
  }
  if (rd < 0) {
    return rd;
  } else {
    return total;
  }
}
```
user: 请显示与下面列出的汇编代码相匹配的C语言实现:

```asm
<copy_block>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  xor    %r13d,%r13d
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  push   %rbx
  sub    $0x418,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x408(%rsp)
  xor    %eax,%eax
  test   %rdx,%rdx
  je     L26
  mov    %edi,%r15d
  mov    %esi,%r14d
  mov    %rdx,%rbx
  mov    %rsp,%rbp
  jmp    L87
  nopl   0x0(%rax)
L70:
  mov    %r12,%rdx
  mov    %rbp,%rsi
  mov    %r15d,%edi
  call   <write_block@plt>
  cmp    %r12,%rax
  jl     L81
  add    %r12,%r13
  sub    %r12,%rbx
  je     L35
L87:
  mov    $0x400,%edx
  mov    %rbp,%rsi
  mov    %r14d,%edi
  cmp    %rdx,%rbx
  cmovbe %rbx,%rdx
  call   <read_block@plt>
  mov    %rax,%r12
  test   %rax,%rax
  jg     L70
L26:
  test   %r12,%r12
  je     L35
L71:
  mov    0x408(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L20
  add    $0x418,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nop
L35:
  mov    %r13,%r12
  jmp    L71
  nopl   (%rax)
L81:
  mov    $0xffffffffffffffff,%r12
  jmp    L71
L20:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
ssize_t copy_block(int fd_out, int fd_in, size_t nbyte) {
  char buffer[(1024)];
  ssize_t rd;
  size_t total;
  total = 0;
  while (nbyte > 0 && (rd = read_block(fd_in, buffer, nbyte > sizeof(buffer) ? sizeof(buffer) : nbyte)) > 0) {
    if (write_block(fd_out, buffer, rd) < rd) {
      return -1;
    }
    total += rd;
    nbyte -= rd;
  }
  if (rd < 0) {
    return rd;
  } else {
    return total;
  }
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<CANInit>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    $0x40040000,%eax
  movq   $0x41,(%rax)
  movl   $0x1,-0x4(%rbp)
  jmp    L19
L28:
  nop
L3:
  mov    $0x40040020,%eax
  mov    (%rax),%rax
  and    $0x8000,%eax
  test   %rax,%rax
  jne    L3
  mov    $0x40040024,%eax
  movq   $0xb0,(%rax)
  mov    $0x40040034,%eax
  movq   $0x0,(%rax)
  mov    $0x40040038,%eax
  movq   $0x0,(%rax)
  mov    $0x40040020,%edx
  mov    -0x4(%rbp),%eax
  cltq
  mov    %rax,(%rdx)
  addl   $0x1,-0x4(%rbp)
L19:
  cmpl   $0x20,-0x4(%rbp)
  jle    L28
  mov    $0x40040004,%eax
  mov    (%rax),%rax
  nop
  pop    %rbp
  ret
```

assistant: ```c
void CANInit(void) {
  int iMsg;
  (*((volatile unsigned long *)(0x40040000 + 0x00000000))) = 0x00000001 | 0x00000040;
  for (iMsg = 1; iMsg <= 32; iMsg++) {
    while ((*((volatile unsigned long *)(0x40040000 + 0x00000020))) & 0x00008000) {
    }
    (*((volatile unsigned long *)(0x40040000 + 0x00000024))) = 0x00000080 | 0x00000020 | 0x00000010;
    (*((volatile unsigned long *)(0x40040000 + 0x00000034))) = 0;
    (*((volatile unsigned long *)(0x40040000 + 0x00000038))) = 0;
    (*((volatile unsigned long *)(0x40040000 + 0x00000020))) = iMsg;
  }
  (*((volatile unsigned long *)(0x40040000 + 0x00000004)));
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<CANInit>:
  endbr64
  movq   $0x41,0x40040000
  mov    $0x1,%edx
L5:
  mov    0x40040020,%rax
  test   $0x80,%ah
  jne    L5
  movq   $0xb0,0x40040024
  movq   $0x0,0x40040034
  movq   $0x0,0x40040038
  mov    %rdx,0x40040020
  add    $0x1,%rdx
  cmp    $0x21,%rdx
  jne    L5
  mov    0x40040004,%rax
  ret
```

assistant: ```c
void CANInit(void) {
  int iMsg;
  (*((volatile unsigned long *)(0x40040000 + 0x00000000))) = 0x00000001 | 0x00000040;
  for (iMsg = 1; iMsg <= 32; iMsg++) {
    while ((*((volatile unsigned long *)(0x40040000 + 0x00000020))) & 0x00008000) {
    }
    (*((volatile unsigned long *)(0x40040000 + 0x00000024))) = 0x00000080 | 0x00000020 | 0x00000010;
    (*((volatile unsigned long *)(0x40040000 + 0x00000034))) = 0;
    (*((volatile unsigned long *)(0x40040000 + 0x00000038))) = 0;
    (*((volatile unsigned long *)(0x40040000 + 0x00000020))) = iMsg;
  }
  (*((volatile unsigned long *)(0x40040000 + 0x00000004)));
}
```
user: What is the c source code of the assembly code below:

```asm
<CANInit>:
  endbr64
  movq   $0x41,0x40040000
  mov    $0x1,%edx
  nopl   (%rax)
L0:
  mov    0x40040020,%rax
  test   $0x80,%ah
  jne    L0
  movq   $0xb0,0x40040024
  movq   $0x0,0x40040034
  movq   $0x0,0x40040038
  mov    %rdx,0x40040020
  add    $0x1,%rdx
  cmp    $0x21,%rdx
  jne    L0
  mov    0x40040004,%rax
  ret
```

assistant: ```c
void CANInit(void) {
  int iMsg;
  (*((volatile unsigned long *)(0x40040000 + 0x00000000))) = 0x00000001 | 0x00000040;
  for (iMsg = 1; iMsg <= 32; iMsg++) {
    while ((*((volatile unsigned long *)(0x40040000 + 0x00000020))) & 0x00008000) {
    }
    (*((volatile unsigned long *)(0x40040000 + 0x00000024))) = 0x00000080 | 0x00000020 | 0x00000010;
    (*((volatile unsigned long *)(0x40040000 + 0x00000034))) = 0;
    (*((volatile unsigned long *)(0x40040000 + 0x00000038))) = 0;
    (*((volatile unsigned long *)(0x40040000 + 0x00000020))) = iMsg;
  }
  (*((volatile unsigned long *)(0x40040000 + 0x00000004)));
}
```
user: 请将以下的汇编代码转换成C语言代码:

```asm
<CANInit>:
  endbr64
  movq   $0x41,0x40040000
  mov    $0x1,%edx
  nopl   (%rax)
L5:
  mov    0x40040020,%rax
  test   $0x80,%ah
  jne    L5
  movq   $0xb0,0x40040024
  movq   $0x0,0x40040034
  movq   $0x0,0x40040038
  mov    %rdx,0x40040020
  add    $0x1,%rdx
  cmp    $0x21,%rdx
  jne    L5
  mov    0x40040004,%rax
  ret
```

assistant: ```c
void CANInit(void) {
  int iMsg;
  (*((volatile unsigned long *)(0x40040000 + 0x00000000))) = 0x00000001 | 0x00000040;
  for (iMsg = 1; iMsg <= 32; iMsg++) {
    while ((*((volatile unsigned long *)(0x40040000 + 0x00000020))) & 0x00008000) {
    }
    (*((volatile unsigned long *)(0x40040000 + 0x00000024))) = 0x00000080 | 0x00000020 | 0x00000010;
    (*((volatile unsigned long *)(0x40040000 + 0x00000034))) = 0;
    (*((volatile unsigned long *)(0x40040000 + 0x00000038))) = 0;
    (*((volatile unsigned long *)(0x40040000 + 0x00000020))) = iMsg;
  }
  (*((volatile unsigned long *)(0x40040000 + 0x00000004)));
}
```