ylfeng/ReF-Decompile-dataset huggingface dataset:
user: What would the C source look like for the assembly code provided here:

```asm
<zxy2bufs>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %esi,-0x18(%rbp)
  mov    %edx,-0x1c(%rbp)
  mov    %rcx,-0x28(%rbp)
  mov    %r8,-0x30(%rbp)
  mov    %r9d,-0x20(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x20(%rbp),%edx
  mov    -0x28(%rbp),%rax
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  mov    -0x20(%rbp),%edx
  mov    -0x30(%rbp),%rax
  mov    $0x0,%esi
  mov    %rax,%rdi
  call   <memset@plt>
  movl   $0x0,-0xc(%rbp)
  mov    $0x20,%eax
  sub    -0x14(%rbp),%eax
  mov    %eax,%ecx
  shll   %cl,-0x18(%rbp)
  mov    $0x20,%eax
  sub    -0x14(%rbp),%eax
  mov    %eax,%ecx
  shll   %cl,-0x1c(%rbp)
  mov    -0x14(%rbp),%eax
  add    %eax,%eax
  mov    %eax,%edi
  lea    -0xc(%rbp),%rcx
  mov    -0x28(%rbp),%rdx
  mov    -0x1c(%rbp),%esi
  mov    -0x18(%rbp),%eax
  mov    $0x0,%r9d
  mov    %edi,%r8d
  mov    %eax,%edi
  call   <xy2buf@plt>
  mov    -0x20(%rbp),%edx
  mov    -0x28(%rbp),%rcx
  mov    -0x30(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <memcpy@plt>
  jmp    L24
L3:
  mov    -0xc(%rbp),%eax
  lea    0x7(%rax),%edx
  test   %eax,%eax
  cmovs  %edx,%eax
  sar    $0x3,%eax
  mov    %eax,%edx
  movslq %edx,%rcx
  mov    -0x30(%rbp),%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  mov    %eax,%edi
  mov    -0xc(%rbp),%eax
  mov    %eax,%ecx
  sar    $0x1f,%ecx
  shr    $0x1d,%ecx
  add    %ecx,%eax
  and    $0x7,%eax
  sub    %ecx,%eax
  mov    %eax,%ecx
  mov    $0x7,%eax
  sub    %ecx,%eax
  mov    $0x1,%esi
  mov    %eax,%ecx
  shl    %cl,%esi
  mov    %esi,%eax
  or     %eax,%edi
  mov    %edi,%ecx
  movslq %edx,%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    %ecx,%edx
  mov    %dl,(%rax)
  mov    -0xc(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,-0xc(%rbp)
L24:
  mov    -0x20(%rbp),%eax
  lea    0x0(,%rax,8),%edx
  mov    -0xc(%rbp),%eax
  cmp    %eax,%edx
  jg     L3
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L27
  call   <__stack_chk_fail@plt>
L27:
  leave
  ret
```

assistant: ```c
void zxy2bufs(unsigned int z, unsigned int x, unsigned int y, unsigned char *startbuf, unsigned char *endbuf, int bytes) {
  memset(startbuf, 0, bytes);
  memset(endbuf, 0, bytes);
  int i = 0;
  x <<= (32 - z);
  y <<= (32 - z);
  xy2buf(x, y, startbuf, &i, 2 * z, 0);
  memcpy(endbuf, startbuf, bytes);
  for (; i < bytes * 8; i++) {
    endbuf[i / 8] |= 1 << (7 - (i % 8));
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<zxy2bufs>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  mov    %edi,%r15d
  mov    %esi,%r13d
  mov    %edx,%r14d
  mov    %rcx,%r12
  mov    %r8,%rbx
  mov    %r9d,%ebp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  mov    %r9d,%edx
  mov    $0x0,%esi
  mov    %rcx,%rdi
  call   <memset@plt>
  mov    %ebp,%edx
  mov    $0x0,%esi
  mov    %rbx,%rdi
  call   <memset@plt>
  movl   $0x0,0x4(%rsp)
  mov    $0x20,%ecx
  sub    %r15d,%ecx
  lea    0x4(%rsp),%rax
  mov    %r14d,%esi
  shl    %cl,%esi
  mov    %r13d,%edi
  shl    %cl,%edi
  mov    $0x0,%r9d
  lea    (%r15,%r15,1),%r8d
  mov    %rax,%rcx
  mov    %r12,%rdx
  call   <xy2buf@plt>
  mov    %ebp,%edx
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <memcpy@plt>
  lea    0x0(,%rbp,8),%r9d
  mov    0x4(%rsp),%edx
  cmp    %edx,%r9d
  jle    L23
  mov    $0x7,%r8d
  mov    $0x1,%edi
L29:
  lea    0x7(%rdx),%eax
  test   %edx,%edx
  cmovns %edx,%eax
  sar    $0x3,%eax
  cltq
  mov    %edx,%ecx
  sar    $0x1f,%ecx
  shr    $0x1d,%ecx
  lea    (%rdx,%rcx,1),%esi
  and    $0x7,%esi
  sub    %ecx,%esi
  mov    %r8d,%ecx
  sub    %esi,%ecx
  mov    %edi,%esi
  shl    %cl,%esi
  or     %sil,(%rbx,%rax,1)
  add    $0x1,%edx
  cmp    %edx,%r9d
  jne    L29
L23:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L18
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L18:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void zxy2bufs(unsigned int z, unsigned int x, unsigned int y, unsigned char *startbuf, unsigned char *endbuf, int bytes) {
  memset(startbuf, 0, bytes);
  memset(endbuf, 0, bytes);
  int i = 0;
  x <<= (32 - z);
  y <<= (32 - z);
  xy2buf(x, y, startbuf, &i, 2 * z, 0);
  memcpy(endbuf, startbuf, bytes);
  for (; i < bytes * 8; i++) {
    endbuf[i / 8] |= 1 << (7 - (i % 8));
  }
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<zxy2bufs>:
  endbr64
  push   %r15
  mov    %edi,%r15d
  mov    %rcx,%rdi
  push   %r14
  mov    %edx,%r14d
  mov    %r9d,%edx
  push   %r13
  mov    %esi,%r13d
  xor    %esi,%esi
  push   %r12
  mov    %rcx,%r12
  push   %rbp
  mov    %r9d,%ebp
  push   %rbx
  mov    %r8,%rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  call   <memset@plt>
  mov    %ebp,%edx
  xor    %esi,%esi
  mov    %rbx,%rdi
  call   <memset@plt>
  mov    $0x20,%ecx
  mov    %r14d,%esi
  mov    %r13d,%edi
  sub    %r15d,%ecx
  lea    0x4(%rsp),%r10
  xor    %r9d,%r9d
  mov    %r12,%rdx
  shl    %cl,%esi
  shl    %cl,%edi
  lea    (%r15,%r15,1),%r8d
  mov    %r10,%rcx
  movl   $0x0,0x4(%rsp)
  call   <xy2buf@plt>
  mov    %ebp,%edx
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <memcpy@plt>
  mov    0x4(%rsp),%edx
  lea    0x0(,%rbp,8),%r9d
  cmp    %edx,%r9d
  jle    L16
  mov    $0x7,%r8d
  mov    $0x1,%edi
  nopw   0x0(%rax,%rax,1)
L28:
  test   %edx,%edx
  lea    0x7(%rdx),%eax
  mov    %edx,%ecx
  cmovns %edx,%eax
  sar    $0x1f,%ecx
  shr    $0x1d,%ecx
  lea    (%rdx,%rcx,1),%esi
  sar    $0x3,%eax
  add    $0x1,%edx
  and    $0x7,%esi
  cltq
  sub    %ecx,%esi
  mov    %r8d,%ecx
  sub    %esi,%ecx
  mov    %edi,%esi
  shl    %cl,%esi
  or     %sil,(%rbx,%rax,1)
  cmp    %edx,%r9d
  jne    L28
L16:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L17
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L17:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void zxy2bufs(unsigned int z, unsigned int x, unsigned int y, unsigned char *startbuf, unsigned char *endbuf, int bytes) {
  memset(startbuf, 0, bytes);
  memset(endbuf, 0, bytes);
  int i = 0;
  x <<= (32 - z);
  y <<= (32 - z);
  xy2buf(x, y, startbuf, &i, 2 * z, 0);
  memcpy(endbuf, startbuf, bytes);
  for (; i < bytes * 8; i++) {
    endbuf[i / 8] |= 1 << (7 - (i % 8));
  }
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<zxy2bufs>:
  endbr64
  push   %r15
  mov    %edi,%r15d
  mov    %rcx,%rdi
  push   %r14
  mov    %edx,%r14d
  mov    %r9d,%edx
  push   %r13
  mov    %esi,%r13d
  xor    %esi,%esi
  push   %r12
  mov    %rcx,%r12
  push   %rbp
  mov    %r9d,%ebp
  push   %rbx
  mov    %r8,%rbx
  sub    $0x18,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x8(%rsp)
  xor    %eax,%eax
  call   <memset@plt>
  mov    %ebp,%edx
  xor    %esi,%esi
  mov    %rbx,%rdi
  call   <memset@plt>
  mov    $0x20,%ecx
  mov    %r14d,%esi
  mov    %r13d,%edi
  sub    %r15d,%ecx
  lea    0x4(%rsp),%r10
  xor    %r9d,%r9d
  mov    %r12,%rdx
  shl    %cl,%esi
  shl    %cl,%edi
  lea    (%r15,%r15,1),%r8d
  mov    %r10,%rcx
  movl   $0x0,0x4(%rsp)
  call   <xy2buf@plt>
  mov    %ebp,%edx
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <memcpy@plt>
  mov    0x4(%rsp),%edx
  lea    0x0(,%rbp,8),%r9d
  cmp    %edx,%r9d
  jle    L8
  mov    $0x7,%r8d
  mov    $0x1,%edi
  nopw   0x0(%rax,%rax,1)
L2:
  test   %edx,%edx
  lea    0x7(%rdx),%eax
  mov    %edx,%ecx
  cmovns %edx,%eax
  sar    $0x1f,%ecx
  shr    $0x1d,%ecx
  lea    (%rdx,%rcx,1),%esi
  sar    $0x3,%eax
  add    $0x1,%edx
  and    $0x7,%esi
  cltq
  sub    %ecx,%esi
  mov    %r8d,%ecx
  sub    %esi,%ecx
  mov    %edi,%esi
  shl    %cl,%esi
  or     %sil,(%rbx,%rax,1)
  cmp    %edx,%r9d
  jne    L2
L8:
  mov    0x8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L14
  add    $0x18,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L14:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
void zxy2bufs(unsigned int z, unsigned int x, unsigned int y, unsigned char *startbuf, unsigned char *endbuf, int bytes) {
  memset(startbuf, 0, bytes);
  memset(endbuf, 0, bytes);
  int i = 0;
  x <<= (32 - z);
  y <<= (32 - z);
  xy2buf(x, y, startbuf, &i, 2 * z, 0);
  memcpy(endbuf, startbuf, bytes);
  for (; i < bytes * 8; i++) {
    endbuf[i / 8] |= 1 << (7 - (i % 8));
  }
}
```
user: Demonstrate the C code that generates the assembly output below:

```asm
<min>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    -0x8(%rbp),%rax
  cmp    -0x10(%rbp),%rax
  jae    L5
  mov    -0x8(%rbp),%rax
  jmp    L17
L5:
  mov    -0x10(%rbp),%rax
L17:
  pop    %rbp
  ret
```

assistant: ```c
size_t min(size_t a, size_t b) {
  if (a < b)
    return a;
  else
    return b;
}
```
user: What is the c source code of the assembly code below:

```asm
<min>:
  endbr64
  cmp    %rsi,%rdi
  mov    %rsi,%rax
  cmovbe %rdi,%rax
  ret
```

assistant: ```c
size_t min(size_t a, size_t b) {
  if (a < b)
    return a;
  else
    return b;
}
```
user: 请从给定的汇编指令推导出C源代码:

```asm
<min>:
  endbr64
  cmp    %rsi,%rdi
  mov    %rsi,%rax
  cmovbe %rdi,%rax
  ret
```

assistant: ```c
size_t min(size_t a, size_t b) {
  if (a < b)
    return a;
  else
    return b;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<min>:
  endbr64
  cmp    %rsi,%rdi
  mov    %rsi,%rax
  cmovbe %rdi,%rax
  ret
```

assistant: ```c
size_t min(size_t a, size_t b) {
  if (a < b)
    return a;
  else
    return b;
}
```
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   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,-0x14(%rbp)
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,-0x10(%rbp)
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,-0xc(%rbp)
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,-0x8(%rbp)
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,-0x4(%rbp)
  mov    -0x14(%rbp),%edx
  mov    -0xc(%rbp),%eax
  add    %edx,%eax
  test   %eax,%eax
  js     L29
  jmp    L48
L39:
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  test   %eax,%eax
  je     L6
  mov    -0x14(%rbp),%eax
  mov    %eax,-0x10(%rbp)
  mov    -0xc(%rbp),%eax
  mov    %eax,-0x8(%rbp)
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,-0x14(%rbp)
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,-0xc(%rbp)
  jmp    L48
L6:
  mov    -0x14(%rbp),%eax
  mov    %eax,-0x10(%rbp)
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,-0x14(%rbp)
L48:
  mov    -0x14(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  jg     L29
  mov    -0x10(%rbp),%eax
  lea    (%rax,%rax,1),%edx
  mov    -0xc(%rbp),%eax
  add    %edx,%eax
  cmp    %eax,-0x14(%rbp)
  jl     L29
  mov    -0x8(%rbp),%eax
  cmp    -0xc(%rbp),%eax
  jge    L29
  mov    -0x10(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jl     L39
L29:
  mov    $0x0,%eax
  leave
  ret
```

assistant: ```c
int main() {
  int x = __VERIFIER_nondet_int();
  int tx = __VERIFIER_nondet_int();
  int y = __VERIFIER_nondet_int();
  int ty = __VERIFIER_nondet_int();
  int n = __VERIFIER_nondet_int();
  if (x + y >= 0) {
    while (x <= n && x >= 2 * tx + y && y >= ty + 1 && x >= tx + 1) {
      if (__VERIFIER_nondet_int()) {
        tx = x;
        ty = y;
        x = __VERIFIER_nondet_int();
        y = __VERIFIER_nondet_int();
      } else {
        tx = x;
        x = __VERIFIER_nondet_int();
      }
    }
  }
  return 0;
}
```
user: What is the c source code of the assembly code below:

```asm
<main>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%r12d
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebx
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebp
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%r13d
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%r14d
  mov    %r12d,%eax
  add    %ebp,%eax
  js     L88
  cmp    %r14d,%r12d
  jg     L88
  lea    0x0(%rbp,%rbx,2),%eax
  cmp    %eax,%r12d
  jl     L88
  cmp    %r13d,%ebp
  jle    L88
  cmp    %ebx,%r12d
  jg     L33
L88:
  mov    $0x0,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L75:
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebx
L64:
  cmp    %ebx,%r14d
  jl     L88
  lea    0x0(%rbp,%r12,2),%eax
  cmp    %ebx,%eax
  jg     L88
  cmp    %r13d,%ebp
  jle    L88
  cmp    %r12d,%ebx
  jle    L88
  mov    %ebx,%r12d
L33:
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  test   %eax,%eax
  je     L75
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebx
  mov    $0x0,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %ebp,%r13d
  mov    %eax,%ebp
  jmp    L64
```

assistant: ```c
int main() {
  int x = __VERIFIER_nondet_int();
  int tx = __VERIFIER_nondet_int();
  int y = __VERIFIER_nondet_int();
  int ty = __VERIFIER_nondet_int();
  int n = __VERIFIER_nondet_int();
  if (x + y >= 0) {
    while (x <= n && x >= 2 * tx + y && y >= ty + 1 && x >= tx + 1) {
      if (__VERIFIER_nondet_int()) {
        tx = x;
        ty = y;
        x = __VERIFIER_nondet_int();
        y = __VERIFIER_nondet_int();
      } else {
        tx = x;
        x = __VERIFIER_nondet_int();
      }
    }
  }
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<main>:
  endbr64
  push   %r14
  xor    %eax,%eax
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%r12d
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebx
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebp
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%r14d
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%r13d
  mov    %r12d,%eax
  add    %ebp,%eax
  js     L43
  cmp    %r13d,%r12d
  jg     L43
  lea    0x0(%rbp,%rbx,2),%eax
  cmp    %eax,%r12d
  jl     L43
  cmp    %r14d,%ebp
  jle    L43
  cmp    %ebx,%r12d
  jg     L24
  jmp    L43
  nopl   (%rax)
L54:
  call   <__VERIFIER_nondet_int@plt>
  mov    %ebp,%r14d
  mov    %eax,%ebx
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebp
  cmp    %ebx,%r13d
  jl     L43
L34:
  lea    0x0(%rbp,%r12,2),%eax
  cmp    %ebx,%eax
  jg     L43
  cmp    %ebp,%r14d
  jge    L43
  cmp    %r12d,%ebx
  jle    L43
  mov    %ebx,%r12d
L24:
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  test   %eax,%eax
  mov    $0x0,%eax
  jne    L54
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebx
  cmp    %ebx,%r13d
  jge    L34
L43:
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

assistant: ```c
int main() {
  int x = __VERIFIER_nondet_int();
  int tx = __VERIFIER_nondet_int();
  int y = __VERIFIER_nondet_int();
  int ty = __VERIFIER_nondet_int();
  int n = __VERIFIER_nondet_int();
  if (x + y >= 0) {
    while (x <= n && x >= 2 * tx + y && y >= ty + 1 && x >= tx + 1) {
      if (__VERIFIER_nondet_int()) {
        tx = x;
        ty = y;
        x = __VERIFIER_nondet_int();
        y = __VERIFIER_nondet_int();
      } else {
        tx = x;
        x = __VERIFIER_nondet_int();
      }
    }
  }
  return 0;
}
```
user: What is the c source code of the assembly code below?

```asm
<main>:
  endbr64
  push   %r14
  xor    %eax,%eax
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%r12d
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebx
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebp
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%r14d
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%r13d
  mov    %r12d,%eax
  add    %ebp,%eax
  js     L55
  cmp    %r13d,%r12d
  jg     L55
  lea    0x0(%rbp,%rbx,2),%eax
  cmp    %eax,%r12d
  jl     L55
  cmp    %r14d,%ebp
  jle    L55
  cmp    %ebx,%r12d
  jg     L117
  jmp    L55
  nopl   (%rax)
L60:
  call   <__VERIFIER_nondet_int@plt>
  mov    %ebp,%r14d
  mov    %eax,%ebx
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebp
  cmp    %ebx,%r13d
  jl     L55
L113:
  lea    0x0(%rbp,%r12,2),%eax
  cmp    %ebx,%eax
  jg     L55
  cmp    %ebp,%r14d
  jge    L55
  cmp    %r12d,%ebx
  jle    L55
  mov    %ebx,%r12d
L117:
  xor    %eax,%eax
  call   <__VERIFIER_nondet_int@plt>
  test   %eax,%eax
  mov    $0x0,%eax
  jne    L60
  call   <__VERIFIER_nondet_int@plt>
  mov    %eax,%ebx
  cmp    %ebx,%r13d
  jge    L113
L55:
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
```

assistant: ```c
int main() {
  int x = __VERIFIER_nondet_int();
  int tx = __VERIFIER_nondet_int();
  int y = __VERIFIER_nondet_int();
  int ty = __VERIFIER_nondet_int();
  int n = __VERIFIER_nondet_int();
  if (x + y >= 0) {
    while (x <= n && x >= 2 * tx + y && y >= ty + 1 && x >= tx + 1) {
      if (__VERIFIER_nondet_int()) {
        tx = x;
        ty = y;
        x = __VERIFIER_nondet_int();
        y = __VERIFIER_nondet_int();
      } else {
        tx = x;
        x = __VERIFIER_nondet_int();
      }
    }
  }
  return 0;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<str_diffn>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  mov    %rdi,%rcx
  mov    %rsi,%rax
  mov    %edx,-0xc(%rbp)
L222:
  mov    -0xc(%rbp),%edx
  lea    -0x1(%rdx),%esi
  mov    %esi,-0xc(%rbp)
  test   %edx,%edx
  jne    L160
  mov    $0x0,%eax
  jmp    L134
L160:
  movzbl (%rcx),%ebx
  movzbl (%rax),%edx
  cmp    %dl,%bl
  jne    L74
  test   %bl,%bl
  je     L8
  add    $0x1,%rcx
  add    $0x1,%rax
  mov    -0xc(%rbp),%edx
  lea    -0x1(%rdx),%esi
  mov    %esi,-0xc(%rbp)
  test   %edx,%edx
  jne    L226
  mov    $0x0,%eax
  jmp    L134
L226:
  movzbl (%rcx),%ebx
  movzbl (%rax),%edx
  cmp    %dl,%bl
  jne    L189
  test   %bl,%bl
  je     L116
  add    $0x1,%rcx
  add    $0x1,%rax
  mov    -0xc(%rbp),%edx
  lea    -0x1(%rdx),%esi
  mov    %esi,-0xc(%rbp)
  test   %edx,%edx
  jne    L202
  mov    $0x0,%eax
  jmp    L134
L202:
  movzbl (%rcx),%ebx
  movzbl (%rax),%edx
  cmp    %dl,%bl
  jne    L199
  test   %bl,%bl
  je     L100
  add    $0x1,%rcx
  add    $0x1,%rax
  mov    -0xc(%rbp),%edx
  lea    -0x1(%rdx),%esi
  mov    %esi,-0xc(%rbp)
  test   %edx,%edx
  jne    L73
  mov    $0x0,%eax
  jmp    L134
L73:
  movzbl (%rcx),%ebx
  movzbl (%rax),%edx
  cmp    %dl,%bl
  jne    L152
  test   %bl,%bl
  je     L5
  add    $0x1,%rcx
  add    $0x1,%rax
  jmp    L222
L74:
  nop
  jmp    L63
L8:
  nop
  jmp    L63
L189:
  nop
  jmp    L63
L116:
  nop
  jmp    L63
L199:
  nop
  jmp    L63
L100:
  nop
  jmp    L63
L152:
  nop
  jmp    L63
L5:
  nop
L63:
  mov    %ebx,%edx
  movzbl %dl,%edx
  movzbl (%rax),%eax
  movzbl %al,%ecx
  mov    %edx,%eax
  sub    %ecx,%eax
L134:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
int str_diffn(s, t, len)
register char *s;
register char *t;
unsigned int len;
{
  register char x;
  for (;;) {
    if (!len--)
      return 0;
    x = *s;
    if (x != *t)
      break;
    if (!x)
      break;
    ++s;
    ++t;
    if (!len--)
      return 0;
    x = *s;
    if (x != *t)
      break;
    if (!x)
      break;
    ++s;
    ++t;
    if (!len--)
      return 0;
    x = *s;
    if (x != *t)
      break;
    if (!x)
      break;
    ++s;
    ++t;
    if (!len--)
      return 0;
    x = *s;
    if (x != *t)
      break;
    if (!x)
      break;
    ++s;
    ++t;
  }
  return ((int)(unsigned int)(unsigned char)x) - ((int)(unsigned int)(unsigned char)*t);
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<str_diffn>:
  endbr64
  test   %edx,%edx
  je     L46
L34:
  movzbl (%rdi),%eax
  cmp    %al,(%rsi)
  jne    L58
  test   %al,%al
  je     L58
  cmp    $0x1,%edx
  je     L6
  movzbl 0x1(%rdi),%eax
  cmp    %al,0x1(%rsi)
  jne    L65
  test   %al,%al
  je     L65
  cmp    $0x2,%edx
  je     L67
  movzbl 0x2(%rdi),%eax
  cmp    %al,0x2(%rsi)
  jne    L32
  test   %al,%al
  je     L32
  cmp    $0x3,%edx
  je     L40
  movzbl 0x3(%rdi),%eax
  cmp    %al,0x3(%rsi)
  jne    L35
  test   %al,%al
  je     L35
  add    $0x4,%rdi
  add    $0x4,%rsi
  sub    $0x4,%edx
  jne    L34
  mov    $0x0,%eax
  ret
L65:
  add    $0x1,%rsi
L58:
  movzbl %al,%eax
  movzbl (%rsi),%edx
  sub    %edx,%eax
  ret
L32:
  add    $0x2,%rsi
  jmp    L58
L35:
  add    $0x3,%rsi
  jmp    L58
L46:
  mov    $0x0,%eax
  ret
L6:
  mov    $0x0,%eax
  ret
L67:
  mov    $0x0,%eax
  ret
L40:
  mov    $0x0,%eax
  ret
```

assistant: ```c
int str_diffn(s, t, len)
register char *s;
register char *t;
unsigned int len;
{
  register char x;
  for (;;) {
    if (!len--)
      return 0;
    x = *s;
    if (x != *t)
      break;
    if (!x)
      break;
    ++s;
    ++t;
    if (!len--)
      return 0;
    x = *s;
    if (x != *t)
      break;
    if (!x)
      break;
    ++s;
    ++t;
    if (!len--)
      return 0;
    x = *s;
    if (x != *t)
      break;
    if (!x)
      break;
    ++s;
    ++t;
    if (!len--)
      return 0;
    x = *s;
    if (x != *t)
      break;
    if (!x)
      break;
    ++s;
    ++t;
  }
  return ((int)(unsigned int)(unsigned char)x) - ((int)(unsigned int)(unsigned char)*t);
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<str_diffn>:
  endbr64
  test   %edx,%edx
  je     L90
L52:
  movzbl (%rdi),%eax
  movzbl (%rsi),%ecx
  cmp    %al,%cl
  jne    L6
  test   %cl,%cl
  je     L80
  cmp    $0x1,%edx
  je     L90
  movzbl 0x1(%rdi),%eax
  movzbl 0x1(%rsi),%ecx
  cmp    %al,%cl
  jne    L6
  test   %cl,%cl
  je     L80
  cmp    $0x2,%edx
  je     L90
  movzbl 0x2(%rdi),%eax
  movzbl 0x2(%rsi),%ecx
  cmp    %al,%cl
  jne    L6
  test   %cl,%cl
  je     L80
  cmp    $0x3,%edx
  je     L90
  movzbl 0x3(%rdi),%eax
  movzbl 0x3(%rsi),%ecx
  cmp    %al,%cl
  jne    L6
  test   %al,%al
  je     L80
  add    $0x4,%rdi
  add    $0x4,%rsi
  sub    $0x4,%edx
  jne    L52
L90:
  xor    %eax,%eax
  ret
  nopl   (%rax)
L80:
  xor    %eax,%eax
L6:
  sub    %ecx,%eax
  ret
```

assistant: ```c
int str_diffn(s, t, len)
register char *s;
register char *t;
unsigned int len;
{
  register char x;
  for (;;) {
    if (!len--)
      return 0;
    x = *s;
    if (x != *t)
      break;
    if (!x)
      break;
    ++s;
    ++t;
    if (!len--)
      return 0;
    x = *s;
    if (x != *t)
      break;
    if (!x)
      break;
    ++s;
    ++t;
    if (!len--)
      return 0;
    x = *s;
    if (x != *t)
      break;
    if (!x)
      break;
    ++s;
    ++t;
    if (!len--)
      return 0;
    x = *s;
    if (x != *t)
      break;
    if (!x)
      break;
    ++s;
    ++t;
  }
  return ((int)(unsigned int)(unsigned char)x) - ((int)(unsigned int)(unsigned char)*t);
}
```