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

```asm
<Exchange>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x14(%rbp)
  mov    %esi,-0x18(%rbp)
  mov    %edx,-0x1c(%rbp)
  mov    %ecx,-0x20(%rbp)
  mov    %r8d,-0x24(%rbp)
  mov    %r9,-0x30(%rbp)
  mov    -0x20(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    0x10(%rbp),%rax
  add    %rdx,%rax
  pxor   %xmm0,%xmm0
  cvtsi2sdl -0x14(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x14(%rbp),%eax
  cmp    -0x20(%rbp),%eax
  je     L39
  movl   $0x0,-0xc(%rbp)
  jmp    L29
L21:
  mov    -0xc(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x14(%rbp),%eax
  cltq
  shl    $0x3,%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movsd  %xmm0,-0x8(%rbp)
  mov    -0xc(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x20(%rbp),%eax
  cltq
  shl    $0x3,%rax
  add    %rax,%rdx
  mov    -0xc(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    -0x30(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%rcx
  mov    -0x14(%rbp),%eax
  cltq
  shl    $0x3,%rax
  add    %rcx,%rax
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0xc(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x20(%rbp),%eax
  cltq
  shl    $0x3,%rax
  add    %rdx,%rax
  movsd  -0x8(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0xc(%rbp)
L29:
  mov    -0xc(%rbp),%eax
  cmp    -0x1c(%rbp),%eax
  jle    L21
  mov    -0x18(%rbp),%eax
  mov    %eax,-0xc(%rbp)
  jmp    L12
L20:
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0xc(%rbp),%eax
  cltq
  shl    $0x3,%rax
  add    %rdx,%rax
  movsd  (%rax),%xmm0
  movsd  %xmm0,-0x8(%rbp)
  mov    -0x20(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0xc(%rbp),%eax
  cltq
  shl    $0x3,%rax
  add    %rax,%rdx
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rcx
  mov    -0x30(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%rcx
  mov    -0xc(%rbp),%eax
  cltq
  shl    $0x3,%rax
  add    %rcx,%rax
  movsd  (%rdx),%xmm0
  movsd  %xmm0,(%rax)
  mov    -0x20(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x30(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0xc(%rbp),%eax
  cltq
  shl    $0x3,%rax
  add    %rdx,%rax
  movsd  -0x8(%rbp),%xmm0
  movsd  %xmm0,(%rax)
  addl   $0x1,-0xc(%rbp)
L12:
  mov    -0xc(%rbp),%eax
  cmp    -0x24(%rbp),%eax
  jl     L20
L39:
  nop
  pop    %rbp
  ret
```

assistant: ```c
void Exchange(j, k, l, m, n, a, scale) int j;
int k;
int l;
int m;
int n;
double **a;
double *scale;
{
  int i;
  double f;
  scale[m] = (double)j;
  if (j != m) {
    for (i = 0; i <= l; i++) {
      f = a[i][j];
      a[i][j] = a[i][m];
      a[i][m] = f;
    }
    for (i = k; i < n; i++) {
      f = a[j][i];
      a[j][i] = a[m][i];
      a[m][i] = f;
    }
  }
}
```
user: Translate the below assembly code into C programming language:

```asm
<Exchange>:
  endbr64
  push   %rbx
  movslq %ecx,%rax
  pxor   %xmm0,%xmm0
  cvtsi2sd %edi,%xmm0
  mov    0x10(%rsp),%r10
  movsd  %xmm0,(%r10,%rax,8)
  cmp    %edi,%ecx
  je     L42
  mov    %esi,%r11d
  lea    0x0(,%rax,8),%rsi
  test   %edx,%edx
  js     L6
  movslq %edi,%r10
  shl    $0x3,%r10
  mov    %r9,%rax
  mov    %edx,%edx
  lea    0x8(%r9,%rdx,8),%rbx
L14:
  mov    (%rax),%rcx
  lea    (%rcx,%r10,1),%rdx
  movsd  (%rdx),%xmm0
  movsd  (%rcx,%rsi,1),%xmm1
  movsd  %xmm1,(%rdx)
  mov    (%rax),%rdx
  movsd  %xmm0,(%rdx,%rsi,1)
  add    $0x8,%rax
  cmp    %rbx,%rax
  jne    L14
L6:
  cmp    %r8d,%r11d
  jge    L42
  movslq %edi,%rdi
  lea    (%r9,%rdi,8),%r10
  movslq %r11d,%rdx
  lea    0x0(,%rdx,8),%rax
  sub    $0x1,%r8d
  sub    %r11d,%r8d
  lea    0x1(%rdx,%r8,1),%rdi
  shl    $0x3,%rdi
  add    %rsi,%r9
L37:
  mov    %rax,%rdx
  add    (%r10),%rdx
  movsd  (%rdx),%xmm0
  mov    (%r9),%rcx
  movsd  (%rcx,%rax,1),%xmm1
  movsd  %xmm1,(%rdx)
  mov    (%r9),%rdx
  movsd  %xmm0,(%rdx,%rax,1)
  add    $0x8,%rax
  cmp    %rdi,%rax
  jne    L37
L42:
  pop    %rbx
  ret
```

assistant: ```c
void Exchange(j, k, l, m, n, a, scale) int j;
int k;
int l;
int m;
int n;
double **a;
double *scale;
{
  int i;
  double f;
  scale[m] = (double)j;
  if (j != m) {
    for (i = 0; i <= l; i++) {
      f = a[i][j];
      a[i][j] = a[i][m];
      a[i][m] = f;
    }
    for (i = k; i < n; i++) {
      f = a[j][i];
      a[j][i] = a[m][i];
      a[m][i] = f;
    }
  }
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<Exchange>:
  endbr64
  pxor   %xmm0,%xmm0
  push   %rbp
  movslq %esi,%rax
  movslq %ecx,%rbp
  cvtsi2sd %edi,%xmm0
  push   %rbx
  mov    0x18(%rsp),%rsi
  movsd  %xmm0,(%rsi,%rbp,8)
  cmp    %edi,%ecx
  je     L48
  test   %edx,%edx
  js     L45
  movslq %edi,%r10
  movslq %edx,%rdx
  lea    0x0(,%rbp,8),%r11
  mov    %r9,%rcx
  shl    $0x3,%r10
  lea    0x8(%r9,%rdx,8),%rbx
L24:
  mov    (%rcx),%rdx
  add    $0x8,%rcx
  lea    (%rdx,%r10,1),%rsi
  add    %r11,%rdx
  movsd  (%rsi),%xmm0
  movsd  (%rdx),%xmm1
  movsd  %xmm1,(%rsi)
  movsd  %xmm0,(%rdx)
  cmp    %rcx,%rbx
  jne    L24
L45:
  cmp    %r8d,%eax
  jge    L48
  movslq %edi,%rdi
  mov    (%r9,%rbp,8),%rdx
  mov    (%r9,%rdi,8),%rcx
  nopl   0x0(%rax,%rax,1)
L27:
  movsd  (%rcx,%rax,8),%xmm0
  movsd  (%rdx,%rax,8),%xmm1
  movsd  %xmm1,(%rcx,%rax,8)
  movsd  %xmm0,(%rdx,%rax,8)
  add    $0x1,%rax
  cmp    %eax,%r8d
  jg     L27
L48:
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
void Exchange(j, k, l, m, n, a, scale) int j;
int k;
int l;
int m;
int n;
double **a;
double *scale;
{
  int i;
  double f;
  scale[m] = (double)j;
  if (j != m) {
    for (i = 0; i <= l; i++) {
      f = a[i][j];
      a[i][j] = a[i][m];
      a[i][m] = f;
    }
    for (i = k; i < n; i++) {
      f = a[j][i];
      a[j][i] = a[m][i];
      a[m][i] = f;
    }
  }
}
```
user: What is the c source code of the assembly code below?

```asm
<Exchange>:
  endbr64
  pxor   %xmm0,%xmm0
  push   %rbp
  movslq %edx,%rax
  movslq %ecx,%rbp
  cvtsi2sd %edi,%xmm0
  push   %rbx
  mov    0x18(%rsp),%rdx
  movsd  %xmm0,(%rdx,%rbp,8)
  cmp    %edi,%ecx
  je     L21
  test   %eax,%eax
  js     L85
  movslq %edi,%r10
  lea    0x0(,%rbp,8),%r11
  mov    %r9,%rdx
  shl    $0x3,%r10
  lea    0x8(%r9,%rax,8),%rbx
  nopl   0x0(%rax)
L48:
  mov    (%rdx),%rax
  add    $0x8,%rdx
  lea    (%rax,%r10,1),%rcx
  add    %r11,%rax
  movsd  (%rcx),%xmm0
  movsd  (%rax),%xmm1
  movsd  %xmm1,(%rcx)
  movsd  %xmm0,(%rax)
  cmp    %rbx,%rdx
  jne    L48
L85:
  cmp    %r8d,%esi
  jge    L21
  movslq %edi,%rdi
  mov    (%r9,%rbp,8),%rdx
  movslq %esi,%rax
  mov    %r8d,%r11d
  mov    (%r9,%rdi,8),%rcx
  lea    0x10(,%rax,8),%r10
  lea    0x0(,%rax,8),%rdi
  sub    %esi,%r11d
  lea    (%rdx,%r10,1),%rbx
  lea    (%rdx,%rdi,1),%r9
  add    %rcx,%rdi
  cmp    %rbx,%rdi
  setae  %bl
  add    %rcx,%r10
  cmp    %r10,%r9
  setae  %r10b
  or     %r10b,%bl
  je     L36
  lea    -0x1(%r11),%r10d
  cmp    $0x1,%r10d
  jbe    L36
  mov    %r11d,%r8d
  xor    %eax,%eax
  shr    %r8d
  shl    $0x4,%r8
  xchg   %ax,%ax
L62:
  movupd (%rdi,%rax,1),%xmm0
  movupd (%r9,%rax,1),%xmm2
  movups %xmm2,(%rdi,%rax,1)
  movups %xmm0,(%r9,%rax,1)
  add    $0x10,%rax
  cmp    %r8,%rax
  jne    L62
  mov    %r11d,%edi
  and    $0xfffffffe,%edi
  lea    (%rdi,%rsi,1),%eax
  cmp    %edi,%r11d
  je     L21
  cltq
  shl    $0x3,%rax
  add    %rax,%rcx
  add    %rdx,%rax
  movsd  (%rcx),%xmm0
  movsd  (%rax),%xmm1
  movsd  %xmm1,(%rcx)
  movsd  %xmm0,(%rax)
L21:
  pop    %rbx
  pop    %rbp
  ret
  nopw   0x0(%rax,%rax,1)
L36:
  movsd  (%rcx,%rax,8),%xmm0
  movsd  (%rdx,%rax,8),%xmm1
  movsd  %xmm1,(%rcx,%rax,8)
  movsd  %xmm0,(%rdx,%rax,8)
  add    $0x1,%rax
  cmp    %eax,%r8d
  jg     L36
  jmp    L21
```

assistant: ```c
void Exchange(j, k, l, m, n, a, scale) int j;
int k;
int l;
int m;
int n;
double **a;
double *scale;
{
  int i;
  double f;
  scale[m] = (double)j;
  if (j != m) {
    for (i = 0; i <= l; i++) {
      f = a[i][j];
      a[i][j] = a[i][m];
      a[i][m] = f;
    }
    for (i = k; i < n; i++) {
      f = a[j][i];
      a[j][i] = a[m][i];
      a[m][i] = f;
    }
  }
}
```
user: 请从给定的汇编指令推导出C源代码：

```asm
<GetAsn1StringBytes>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x24(%rbp)
  cmpq   $0x0,-0x18(%rbp)
  je     L25
  cmpl   $0x0,-0x24(%rbp)
  jns    L63
L25:
  mov    $0x0,%eax
  jmp    L8
L63:
  mov    -0x18(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  not    %eax
  shr    $0x1f,%eax
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  cmpl   $0x0,-0x4(%rbp)
  jns    L42
  mov    $0x0,%eax
  jmp    L8
L42:
  cmpq   $0x0,-0x20(%rbp)
  je     L6
  mov    -0x24(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  jge    L35
L6:
  mov    -0x4(%rbp),%eax
  neg    %eax
  jmp    L8
L35:
  mov    -0x4(%rbp),%edx
  mov    -0x18(%rbp),%rax
  mov    0x4(%rax),%ecx
  mov    -0x20(%rbp),%rax
  mov    %ecx,%esi
  mov    %rax,%rdi
  call   <memcpy@plt>
  mov    $0x1,%eax
L8:
  leave
  ret
```

assistant: ```c
int32_t GetAsn1StringBytes(ASN1_STRING *asn1, uint8_t *pBuf, int32_t cBuf) {
  if (!asn1 || cBuf < 0) {
    return 0;
  }
  int length = asn1->length;
  assert(length >= 0);
  if (length < 0) {
    return 0;
  }
  if (!pBuf || cBuf < length) {
    return -length;
  }
  memcpy(pBuf, asn1->data, (unsigned int)length);
  return 1;
}
```
user: 下面的汇编指令对应的C源代码是什么:

```asm
<GetAsn1StringBytes>:
  endbr64
  test   %rdi,%rdi
  je     L45
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbx
  mov    %rsi,%r13
  mov    %edx,%ebp
  mov    $0x0,%eax
  test   %edx,%edx
  js     L44
  mov    (%rdi),%r12d
  mov    %r12d,%edi
  not    %edi
  shr    $0x1f,%edi
  call   <assert@plt>
  mov    $0x0,%eax
  test   %r12d,%r12d
  js     L44
  test   %r13,%r13
  je     L28
  cmp    %r12d,%ebp
  jl     L28
  mov    0x4(%rbx),%esi
  mov    %r12d,%edx
  mov    %r13,%rdi
  call   <memcpy@plt>
  mov    $0x1,%eax
  jmp    L44
L28:
  mov    %r12d,%eax
  neg    %eax
L44:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L45:
  mov    $0x0,%eax
  ret
```

assistant: ```c
int32_t GetAsn1StringBytes(ASN1_STRING *asn1, uint8_t *pBuf, int32_t cBuf) {
  if (!asn1 || cBuf < 0) {
    return 0;
  }
  int length = asn1->length;
  assert(length >= 0);
  if (length < 0) {
    return 0;
  }
  if (!pBuf || cBuf < length) {
    return -length;
  }
  memcpy(pBuf, asn1->data, (unsigned int)length);
  return 1;
}
```
user: Translate the below assembly code into C programming language:

```asm
<GetAsn1StringBytes>:
  endbr64
  test   %rdi,%rdi
  je     L33
  push   %r13
  push   %r12
  push   %rbp
  mov    %edx,%ebp
  push   %rbx
  sub    $0x8,%rsp
  test   %edx,%edx
  js     L16
  mov    (%rdi),%r12d
  mov    %rdi,%rbx
  mov    %rsi,%r13
  mov    %r12d,%edi
  not    %edi
  shr    $0x1f,%edi
  call   <assert@plt>
  test   %r12d,%r12d
  js     L16
  test   %r13,%r13
  je     L34
  cmp    %r12d,%ebp
  jl     L34
  mov    0x4(%rbx),%esi
  mov    %r12d,%edx
  mov    %r13,%rdi
  call   <memcpy@plt>
  add    $0x8,%rsp
  mov    $0x1,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L16:
  add    $0x8,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   (%rax)
L34:
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  neg    %eax
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L33:
  xor    %eax,%eax
  ret
```

assistant: ```c
int32_t GetAsn1StringBytes(ASN1_STRING *asn1, uint8_t *pBuf, int32_t cBuf) {
  if (!asn1 || cBuf < 0) {
    return 0;
  }
  int length = asn1->length;
  assert(length >= 0);
  if (length < 0) {
    return 0;
  }
  if (!pBuf || cBuf < length) {
    return -length;
  }
  memcpy(pBuf, asn1->data, (unsigned int)length);
  return 1;
}
```
user: What is the c source code of the assembly code below?

```asm
<GetAsn1StringBytes>:
  endbr64
  test   %rdi,%rdi
  je     L16
  push   %r13
  push   %r12
  push   %rbp
  mov    %edx,%ebp
  push   %rbx
  sub    $0x8,%rsp
  test   %edx,%edx
  js     L13
  mov    (%rdi),%r12d
  mov    %rdi,%rbx
  mov    %rsi,%r13
  mov    %r12d,%edi
  not    %edi
  shr    $0x1f,%edi
  call   <assert@plt>
  test   %r12d,%r12d
  js     L13
  test   %r13,%r13
  je     L14
  cmp    %r12d,%ebp
  jl     L14
  mov    0x4(%rbx),%esi
  mov    %r12d,%edx
  mov    %r13,%rdi
  call   <memcpy@plt>
  add    $0x8,%rsp
  mov    $0x1,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L13:
  add    $0x8,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   (%rax)
L14:
  add    $0x8,%rsp
  mov    %r12d,%eax
  pop    %rbx
  neg    %eax
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L16:
  xor    %eax,%eax
  ret
```

assistant: ```c
int32_t GetAsn1StringBytes(ASN1_STRING *asn1, uint8_t *pBuf, int32_t cBuf) {
  if (!asn1 || cBuf < 0) {
    return 0;
  }
  int length = asn1->length;
  assert(length >= 0);
  if (length < 0) {
    return 0;
  }
  if (!pBuf || cBuf < length) {
    return -length;
  }
  memcpy(pBuf, asn1->data, (unsigned int)length);
  return 1;
}
```
user: What is the c source code of the assembly code below:

```asm
<_Print_s>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x20,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %edx,-0x34(%rbp)
  mov    %ecx,-0x38(%rbp)
  mov    $0x0,%ebx
  mov    $0x20,%r14d
  cmpl   $0x0,-0x34(%rbp)
  jle    L119
  mov    $0x0,%r12d
  mov    -0x30(%rbp),%r13
  jmp    L20
L97:
  add    $0x1,%r12d
  add    $0x1,%r13
L20:
  movzbl 0x0(%r13),%eax
  test   %al,%al
  jne    L97
  cmp    -0x34(%rbp),%r12d
  jl     L13
  movl   $0x0,-0x34(%rbp)
  jmp    L86
L13:
  sub    %r12d,-0x34(%rbp)
L86:
  mov    -0x38(%rbp),%eax
  and    $0x2,%eax
  test   %eax,%eax
  je     L119
  mov    $0x30,%r14d
L119:
  mov    -0x38(%rbp),%eax
  and    $0x1,%eax
  test   %eax,%eax
  jne    L14
  jmp    L121
L34:
  mov    %r14d,%eax
  movsbl %al,%edx
  mov    -0x28(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <_PrintChar@plt>
  add    $0x1,%ebx
  subl   $0x1,-0x34(%rbp)
L121:
  cmpl   $0x0,-0x34(%rbp)
  jg     L34
  jmp    L14
L24:
  mov    -0x30(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%edx
  mov    -0x28(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <_PrintChar@plt>
  add    $0x1,%ebx
  addq   $0x1,-0x30(%rbp)
L14:
  mov    -0x30(%rbp),%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L24
  jmp    L91
L49:
  mov    %r14d,%eax
  movsbl %al,%edx
  mov    -0x28(%rbp),%rax
  mov    %edx,%esi
  mov    %rax,%rdi
  call   <_PrintChar@plt>
  add    $0x1,%ebx
  subl   $0x1,-0x34(%rbp)
L91:
  cmpl   $0x0,-0x34(%rbp)
  jg     L49
  mov    %ebx,%eax
  add    $0x20,%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %rbp
  ret
```

assistant: ```c
int _Print_s(char **out, const char *string, int width, int pad) {
  register int pc = 0, padchar = ' ';
  if (width > 0) {
    register int len = 0;
    register const char *ptr;
    for (ptr = string; *ptr; ++ptr)
      ++len;
    if (len >= width)
      width = 0;
    else
      width -= len;
    if (pad & 2)
      padchar = '0';
  }
  if (!(pad & 1)) {
    for (; width > 0; --width) {
      _PrintChar(out, padchar);
      ++pc;
    }
  }
  for (; *string; ++string) {
    _PrintChar(out, *string);
    ++pc;
  }
  for (; width > 0; --width) {
    _PrintChar(out, padchar);
    ++pc;
  }
  return pc;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<_Print_s>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%rbp
  mov    %rsi,%r15
  mov    %edx,%r12d
  test   %edx,%edx
  jle    L21
  cmpb   $0x0,(%rsi)
  je     L87
  mov    %rsi,%rax
  mov    $0x1,%edx
  sub    %esi,%edx
L126:
  lea    (%rdx,%rax,1),%esi
  add    $0x1,%rax
  cmpb   $0x0,(%rax)
  jne    L126
  mov    $0x0,%r13d
  cmp    %esi,%r12d
  jg     L149
L134:
  mov    %ecx,%eax
  and    $0x2,%eax
  cmp    $0x1,%eax
  sbb    %r14d,%r14d
  and    $0xfffffff0,%r14d
  add    $0x30,%r14d
  and    $0x1,%ecx
  jne    L57
  test   %r13d,%r13d
  jle    L41
  mov    %r13d,%r12d
  movsbl %r14b,%ebx
L113:
  mov    %ebx,%esi
  mov    %rbp,%rdi
  call   <_PrintChar@plt>
  sub    $0x1,%r12d
  jne    L113
L117:
  movzbl (%r15),%esi
  test   %sil,%sil
  jne    L28
  jmp    L124
L87:
  mov    $0x0,%esi
L149:
  sub    %esi,%r12d
  mov    %r12d,%r13d
  jmp    L134
L57:
  mov    %r13d,%r12d
  jmp    L83
L41:
  mov    %r13d,%r12d
  mov    %ecx,%r13d
  jmp    L117
L72:
  mov    $0x20,%r14d
  jmp    L117
L21:
  and    $0x1,%ecx
  mov    %ecx,%r13d
  je     L72
  mov    $0x20,%r14d
L83:
  movzbl (%r15),%esi
  mov    $0x0,%r13d
  test   %sil,%sil
  je     L36
L28:
  mov    %r15,%rbx
  sub    %r15d,%r13d
  lea    0x1(%r13),%r15d
L130:
  movsbl %sil,%esi
  mov    %rbp,%rdi
  call   <_PrintChar@plt>
  lea    (%r15,%rbx,1),%r13d
  add    $0x1,%rbx
  movzbl (%rbx),%esi
  test   %sil,%sil
  jne    L130
L36:
  test   %r12d,%r12d
  jle    L124
  mov    %r12d,%ebx
  movsbl %r14b,%r14d
L20:
  mov    %r14d,%esi
  mov    %rbp,%rdi
  call   <_PrintChar@plt>
  sub    $0x1,%ebx
  jne    L20
  lea    0x0(%r13,%r12,1),%r13d
L124:
  mov    %r13d,%eax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
int _Print_s(char **out, const char *string, int width, int pad) {
  register int pc = 0, padchar = ' ';
  if (width > 0) {
    register int len = 0;
    register const char *ptr;
    for (ptr = string; *ptr; ++ptr)
      ++len;
    if (len >= width)
      width = 0;
    else
      width -= len;
    if (pad & 2)
      padchar = '0';
  }
  if (!(pad & 1)) {
    for (; width > 0; --width) {
      _PrintChar(out, padchar);
      ++pc;
    }
  }
  for (; *string; ++string) {
    _PrintChar(out, *string);
    ++pc;
  }
  for (; width > 0; --width) {
    _PrintChar(out, padchar);
    ++pc;
  }
  return pc;
}
```
user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<_Print_s>:
  endbr64
  push   %r15
  mov    %rsi,%r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %edx,%ebp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  movsbl (%rsi),%esi
  test   %edx,%edx
  jle    L25
  test   %sil,%sil
  je     L13
  mov    $0x1,%edx
  mov    %r15,%rax
  sub    %r15d,%edx
  nopl   0x0(%rax)
L116:
  lea    (%rdx,%rax,1),%edi
  add    $0x1,%rax
  cmpb   $0x0,(%rax)
  jne    L116
  cmp    %ebp,%edi
  jl     L130
  mov    %ecx,%ebp
  and    $0x2,%ebp
  jne    L134
  and    $0x1,%ecx
  mov    %ecx,%r14d
  je     L136
  xor    %r14d,%r14d
L136:
  mov    $0x20,%r12d
  jmp    L131
  xchg   %ax,%ax
L130:
  mov    %ebp,%r14d
  sub    %edi,%r14d
L31:
  mov    %ecx,%eax
  mov    %r14d,%ebp
  and    $0x2,%eax
  cmp    $0x1,%eax
  sbb    %r12d,%r12d
  and    $0xfffffff0,%r12d
  add    $0x30,%r12d
  and    $0x1,%ecx
  jne    L152
  test   %r14d,%r14d
  jle    L81
  xchg   %ax,%ax
L94:
  mov    %r12d,%esi
  mov    %rbx,%rdi
  call   <_PrintChar@plt>
  sub    $0x1,%ebp
  jne    L94
  movsbl (%r15),%esi
L34:
  test   %sil,%sil
  je     L89
L131:
  sub    %r15d,%r14d
  lea    0x1(%r14),%r13d
L196:
  lea    0x0(%r13,%r15,1),%r14d
  mov    %rbx,%rdi
  add    $0x1,%r15
  call   <_PrintChar@plt>
  movsbl (%r15),%esi
  test   %sil,%sil
  jne    L196
L44:
  test   %ebp,%ebp
  jle    L89
  mov    %ebp,%r13d
  nopl   0x0(%rax)
L42:
  mov    %r12d,%esi
  mov    %rbx,%rdi
  call   <_PrintChar@plt>
  sub    $0x1,%r13d
  jne    L42
  add    %ebp,%r14d
L89:
  add    $0x8,%rsp
  mov    %r14d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  xchg   %ax,%ax
L25:
  mov    $0x20,%r12d
  xor    %r14d,%r14d
  jmp    L34
  nopl   0x0(%rax,%rax,1)
L134:
  mov    $0x30,%r12d
  xor    %r14d,%r14d
  xor    %ebp,%ebp
  jmp    L131
L152:
  xor    %r14d,%r14d
  test   %sil,%sil
  jne    L131
  jmp    L44
L13:
  mov    %edx,%r14d
  jmp    L31
L81:
  xor    %r14d,%r14d
  jmp    L34
```

assistant: ```c
int _Print_s(char **out, const char *string, int width, int pad) {
  register int pc = 0, padchar = ' ';
  if (width > 0) {
    register int len = 0;
    register const char *ptr;
    for (ptr = string; *ptr; ++ptr)
      ++len;
    if (len >= width)
      width = 0;
    else
      width -= len;
    if (pad & 2)
      padchar = '0';
  }
  if (!(pad & 1)) {
    for (; width > 0; --width) {
      _PrintChar(out, padchar);
      ++pc;
    }
  }
  for (; *string; ++string) {
    _PrintChar(out, *string);
    ++pc;
  }
  for (; width > 0; --width) {
    _PrintChar(out, padchar);
    ++pc;
  }
  return pc;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<_Print_s>:
  endbr64
  push   %r15
  mov    %rsi,%r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  mov    %edx,%ebp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x8,%rsp
  movsbl (%rsi),%esi
  test   %edx,%edx
  jle    L174
  test   %sil,%sil
  je     L39
  mov    $0x1,%edx
  mov    %r15,%rax
  sub    %r15d,%edx
  nopl   0x0(%rax)
L105:
  lea    (%rdx,%rax,1),%edi
  add    $0x1,%rax
  cmpb   $0x0,(%rax)
  jne    L105
  cmp    %edi,%ebp
  jg     L136
  mov    %ecx,%ebp
  and    $0x2,%ebp
  jne    L190
  and    $0x1,%ecx
  mov    %ecx,%r14d
  je     L134
  xor    %r14d,%r14d
L134:
  mov    $0x20,%r12d
  jmp    L34
  xchg   %ax,%ax
L136:
  mov    %ebp,%r14d
  sub    %edi,%r14d
L28:
  mov    %ecx,%eax
  mov    %r14d,%ebp
  and    $0x2,%eax
  cmp    $0x1,%eax
  sbb    %r12d,%r12d
  and    $0xfffffff0,%r12d
  add    $0x30,%r12d
  and    $0x1,%ecx
  jne    L196
  test   %r14d,%r14d
  jle    L50
  xchg   %ax,%ax
L138:
  mov    %r12d,%esi
  mov    %rbx,%rdi
  call   <_PrintChar@plt>
  sub    $0x1,%ebp
  jne    L138
  movsbl (%r15),%esi
L177:
  test   %sil,%sil
  je     L42
L34:
  sub    %r15d,%r14d
  lea    0x1(%r14),%r13d
L128:
  lea    0x0(%r13,%r15,1),%r14d
  mov    %rbx,%rdi
  add    $0x1,%r15
  call   <_PrintChar@plt>
  movsbl (%r15),%esi
  test   %sil,%sil
  jne    L128
L142:
  test   %ebp,%ebp
  jle    L42
  mov    %ebp,%r13d
  nopl   0x0(%rax)
L126:
  mov    %r12d,%esi
  mov    %rbx,%rdi
  call   <_PrintChar@plt>
  sub    $0x1,%r13d
  jne    L126
  add    %ebp,%r14d
L42:
  add    $0x8,%rsp
  mov    %r14d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  xchg   %ax,%ax
L174:
  mov    $0x20,%r12d
  xor    %r14d,%r14d
  jmp    L177
  nopl   0x0(%rax,%rax,1)
L190:
  mov    $0x30,%r12d
  xor    %r14d,%r14d
  xor    %ebp,%ebp
  jmp    L34
L196:
  xor    %r14d,%r14d
  test   %sil,%sil
  jne    L34
  jmp    L142
L39:
  mov    %edx,%r14d
  jmp    L28
L50:
  xor    %r14d,%r14d
  jmp    L177
```

assistant: ```c
int _Print_s(char **out, const char *string, int width, int pad) {
  register int pc = 0, padchar = ' ';
  if (width > 0) {
    register int len = 0;
    register const char *ptr;
    for (ptr = string; *ptr; ++ptr)
      ++len;
    if (len >= width)
      width = 0;
    else
      width -= len;
    if (pad & 2)
      padchar = '0';
  }
  if (!(pad & 1)) {
    for (; width > 0; --width) {
      _PrintChar(out, padchar);
      ++pc;
    }
  }
  for (; *string; ++string) {
    _PrintChar(out, *string);
    ++pc;
  }
  for (; width > 0; --width) {
    _PrintChar(out, padchar);
    ++pc;
  }
  return pc;
}
```