ylfeng/ReF-Decompile-dataset huggingface dataset:
user: 请将以下的汇编代码转换成C语言代码:

```asm
<real_add_sub>:
  endbr64
  push   %r12
  mov    %rdx,%r12
  push   %rbp
  mov    %rdi,%rbp
  mov    $0xa,%edi
  push   %rbx
  mov    %rsi,%rbx
  call   <putchar@plt>
  lea    D16(%rip),%rdi
  call   <puts@plt>
  lea    D14(%rip),%rdi
  pxor   %xmm0,%xmm0
  mov    $0x1,%eax
  cvtss2sd 0x0(%rbp),%xmm0
  call   <printf@plt>
  pxor   %xmm0,%xmm0
  lea    D32(%rip),%rdi
  mov    $0x1,%eax
  cvtss2sd (%rbx),%xmm0
  call   <printf@plt>
  movss  0x0(%rbp),%xmm0
  addss  (%rbx),%xmm0
  lea    D37(%rip),%rdi
  pop    %rbx
  mov    $0x1,%eax
  pop    %rbp
  movss  %xmm0,(%r12)
  pop    %r12
  cvtss2sd %xmm0,%xmm0
  jmp    1090 <printf@plt>
```

tool_calls: name: read_data
arguments: data_label: D16
data_type: string
name: read_data
arguments: data_label: D14
data_type: string
name: read_data
arguments: data_label: D32
data_type: string
name: read_data
arguments: data_label: D37
data_type: string

tool: D16: REAL_ADD_SUB:

tool: D14:   Input R1 = %f.


tool: D32:   Input R2 = %f.


tool: D37:   Output R3 = %f.


assistant: ```c
void real_add_sub(float *r1, float *r2, float *r3) {
  printf("\n");
  printf("REAL_ADD_SUB:\n");
  printf("  Input R1 = %f.\n", *r1);
  printf("  Input R2 = %f.\n", *r2);
  *r3 = *r1 + *r2;
  printf("  Output R3 = %f.\n", *r3);
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<real_add_sub>:
  endbr64
  push   %r12
  mov    %rdx,%r12
  push   %rbp
  mov    %rdi,%rbp
  mov    $0xa,%edi
  push   %rbx
  mov    %rsi,%rbx
  call   <putchar@plt>
  lea    D29(%rip),%rdi
  call   <puts@plt>
  lea    D31(%rip),%rdi
  pxor   %xmm0,%xmm0
  mov    $0x1,%eax
  cvtss2sd 0x0(%rbp),%xmm0
  call   <printf@plt>
  pxor   %xmm0,%xmm0
  lea    D2(%rip),%rdi
  mov    $0x1,%eax
  cvtss2sd (%rbx),%xmm0
  call   <printf@plt>
  movss  0x0(%rbp),%xmm0
  addss  (%rbx),%xmm0
  lea    D6(%rip),%rdi
  pop    %rbx
  mov    $0x1,%eax
  pop    %rbp
  movss  %xmm0,(%r12)
  pop    %r12
  cvtss2sd %xmm0,%xmm0
  jmp    1090 <printf@plt>
```

tool_calls: name: parse_data
arguments: data_label: D29
type_infered: string
name: parse_data
arguments: data_label: D31
type_infered: string
name: parse_data
arguments: data_label: D2
type_infered: string
name: parse_data
arguments: data_label: D6
type_infered: string

tool: D29: REAL_ADD_SUB:

tool: D31:   Input R1 = %f.


tool: D2:   Input R2 = %f.


tool: D6:   Output R3 = %f.


assistant: ```c
void real_add_sub(float *r1, float *r2, float *r3) {
  printf("\n");
  printf("REAL_ADD_SUB:\n");
  printf("  Input R1 = %f.\n", *r1);
  printf("  Input R2 = %f.\n", *r2);
  *r3 = *r1 + *r2;
  printf("  Output R3 = %f.\n", *r3);
}
```
user: What is the c source code of the assembly code below:

```asm
<PyMPELog_NewState>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %edi,-0x14(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    %rcx,-0x30(%rbp)
  mov    %r8,-0x38(%rbp)
  movl   $0x0,-0x4(%rbp)
  mov    -0x4(%rbp),%eax
  pop    %rbp
  ret
```

assistant: ```c
int PyMPELog_NewState(int commID, const char name[], const char color[], const char format[], int stateID[2]) {
  int ierr = 0;
  return ierr;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<PyMPELog_NewState>:
  endbr64
  mov    $0x0,%eax
  ret
```

assistant: ```c
int PyMPELog_NewState(int commID, const char name[], const char color[], const char format[], int stateID[2]) {
  int ierr = 0;
  return ierr;
}
```
user: Please show me the C implementation that matches the assembly code listed below:

```asm
<PyMPELog_NewState>:
  endbr64
  xor    %eax,%eax
  ret
```

assistant: ```c
int PyMPELog_NewState(int commID, const char name[], const char color[], const char format[], int stateID[2]) {
  int ierr = 0;
  return ierr;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<PyMPELog_NewState>:
  endbr64
  xor    %eax,%eax
  ret
```

assistant: ```c
int PyMPELog_NewState(int commID, const char name[], const char color[], const char format[], int stateID[2]) {
  int ierr = 0;
  return ierr;
}
```
user: 请将以下的汇编代码转换成C语言代码：

```asm
<srand48_r>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x8(%rbp)
  mov    %rsi,-0x10(%rbp)
  mov    $0xffffffff,%eax
  and    %rax,-0x8(%rbp)
  mov    -0x10(%rbp),%rax
  mov    (%rax),%rax
  add    $0x10,%rax
  mov    -0x8(%rbp),%rdx
  sar    $0x10,%rdx
  mov    %rdx,(%rax)
  mov    -0x10(%rbp),%rax
  mov    (%rax),%rax
  lea    0x8(%rax),%rdx
  mov    -0x8(%rbp),%rax
  movzwl %ax,%eax
  mov    %rax,(%rdx)
  mov    -0x10(%rbp),%rax
  mov    (%rax),%rax
  movq   $0x330e,(%rax)
  mov    -0x10(%rbp),%rax
  movl   $0xdeece66d,0x8(%rax)
  mov    -0x10(%rbp),%rax
  movl   $0xb,0xc(%rax)
  mov    -0x10(%rbp),%rax
  movl   $0x1,0x10(%rax)
  mov    $0x0,%eax
  pop    %rbp
  ret
```

assistant: ```c
int srand48_r(long int seedval, struct drand48_data *buffer) {
  if (sizeof(long int) > 4)
    seedval &= 0xffffffffl;
  buffer->__x[2] = seedval >> 16;
  buffer->__x[1] = seedval & 0xffffl;
  buffer->__x[0] = 0x330e;
  buffer->__a = 0x5deece66dull;
  buffer->__c = 0xb;
  buffer->__init = 1;
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<srand48_r>:
  endbr64
  mov    (%rsi),%rdx
  mov    %rdi,%rax
  sar    $0x10,%rax
  and    $0xffff,%eax
  mov    %rax,0x10(%rdx)
  mov    (%rsi),%rax
  and    $0xffff,%edi
  mov    %rdi,0x8(%rax)
  mov    (%rsi),%rax
  movq   $0x330e,(%rax)
  movl   $0xdeece66d,0x8(%rsi)
  movl   $0xb,0xc(%rsi)
  movl   $0x1,0x10(%rsi)
  mov    $0x0,%eax
  ret
```

assistant: ```c
int srand48_r(long int seedval, struct drand48_data *buffer) {
  if (sizeof(long int) > 4)
    seedval &= 0xffffffffl;
  buffer->__x[2] = seedval >> 16;
  buffer->__x[1] = seedval & 0xffffl;
  buffer->__x[0] = 0x330e;
  buffer->__a = 0x5deece66dull;
  buffer->__c = 0xb;
  buffer->__init = 1;
  return 0;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<srand48_r>:
  endbr64
  mov    %rdi,%rdx
  mov    (%rsi),%rax
  and    $0xffff,%edi
  sar    $0x10,%rdx
  and    $0xffff,%edx
  mov    %rdi,0x8(%rax)
  mov    %rdx,0x10(%rax)
  movq   $0x330e,(%rax)
  movabs $0xbdeece66d,%rax
  mov    %rax,0x8(%rsi)
  xor    %eax,%eax
  movl   $0x1,0x10(%rsi)
  ret
```

assistant: ```c
int srand48_r(long int seedval, struct drand48_data *buffer) {
  if (sizeof(long int) > 4)
    seedval &= 0xffffffffl;
  buffer->__x[2] = seedval >> 16;
  buffer->__x[1] = seedval & 0xffffl;
  buffer->__x[0] = 0x330e;
  buffer->__a = 0x5deece66dull;
  buffer->__c = 0xb;
  buffer->__init = 1;
  return 0;
}
```
user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<srand48_r>:
  endbr64
  mov    %rdi,%rdx
  mov    (%rsi),%rax
  and    $0xffff,%edi
  sar    $0x10,%rdx
  and    $0xffff,%edx
  mov    %rdi,0x8(%rax)
  mov    %rdx,0x10(%rax)
  movq   $0x330e,(%rax)
  mov    D6(%rip),%rax
  movl   $0x1,0x10(%rsi)
  mov    %rax,0x8(%rsi)
  xor    %eax,%eax
  ret
```

tool_calls: name: extract_symbolic_data
arguments: tag: D6
data_type: byte[8]

tool: {"D6": [0x6d,0xe6,0xec,0xde,0x0b,0x00,0x00,0x00]}

assistant: ```c
int srand48_r(long int seedval, struct drand48_data *buffer) {
  if (sizeof(long int) > 4)
    seedval &= 0xffffffffl;
  buffer->__x[2] = seedval >> 16;
  buffer->__x[1] = seedval & 0xffffl;
  buffer->__x[0] = 0x330e;
  buffer->__a = 0x5deece66dull;
  buffer->__c = 0xb;
  buffer->__init = 1;
  return 0;
}
```
user: Translate the below assembly code into C programming language:

```asm
<round_weed>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,-0x1c(%rbp)
  mov    %rdx,-0x28(%rbp)
  mov    %rcx,-0x30(%rbp)
  mov    %r8,-0x38(%rbp)
  mov    %r9,-0x40(%rbp)
  mov    -0x28(%rbp),%rax
  sub    0x10(%rbp),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x28(%rbp),%rdx
  mov    0x10(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  jmp    L15
L91:
  mov    -0x1c(%rbp),%eax
  cltq
  lea    -0x1(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%edx
  sub    $0x1,%edx
  mov    %dl,(%rax)
  mov    -0x40(%rbp),%rax
  add    %rax,-0x38(%rbp)
L15:
  mov    -0x38(%rbp),%rax
  cmp    -0x10(%rbp),%rax
  jge    L31
  mov    -0x30(%rbp),%rax
  sub    -0x38(%rbp),%rax
  cmp    %rax,-0x40(%rbp)
  jg     L31
  mov    -0x38(%rbp),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  cmp    %rax,-0x10(%rbp)
  jg     L91
  mov    -0x10(%rbp),%rax
  sub    -0x38(%rbp),%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rcx
  mov    -0x40(%rbp),%rax
  add    %rcx,%rax
  sub    -0x10(%rbp),%rax
  cmp    %rax,%rdx
  jge    L91
L31:
  mov    -0x38(%rbp),%rax
  cmp    -0x8(%rbp),%rax
  jge    L87
  mov    -0x30(%rbp),%rax
  sub    -0x38(%rbp),%rax
  cmp    %rax,-0x40(%rbp)
  jg     L87
  mov    -0x38(%rbp),%rdx
  mov    -0x40(%rbp),%rax
  add    %rdx,%rax
  cmp    %rax,-0x8(%rbp)
  jg     L27
  mov    -0x8(%rbp),%rax
  sub    -0x38(%rbp),%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rcx
  mov    -0x40(%rbp),%rax
  add    %rcx,%rax
  sub    -0x8(%rbp),%rax
  cmp    %rax,%rdx
  jle    L87
L27:
  mov    $0x0,%eax
  jmp    L98
L87:
  mov    0x10(%rbp),%rax
  add    %rax,%rax
  cmp    %rax,-0x38(%rbp)
  jl     L104
  mov    0x10(%rbp),%rax
  lea    0x0(,%rax,4),%rdx
  mov    -0x30(%rbp),%rax
  sub    %rdx,%rax
  cmp    %rax,-0x38(%rbp)
  jg     L104
  mov    $0x1,%eax
  jmp    L98
L104:
  mov    $0x0,%eax
L98:
  pop    %rbp
  ret
```

assistant: ```c
int round_weed(char *buffer, int len, uint64_t wp_W, uint64_t delta, uint64_t rest, uint64_t ten_kappa, uint64_t ulp) {
  uint64_t wp_Wup = wp_W - ulp;
  uint64_t wp_Wdown = wp_W + ulp;
  while (rest < wp_Wup && delta - rest >= ten_kappa && (rest + ten_kappa < wp_Wup || wp_Wup - rest >= rest + ten_kappa - wp_Wup)) {
    --buffer[len - 1];
    rest += ten_kappa;
  }
  if (rest < wp_Wdown && delta - rest >= ten_kappa && (rest + ten_kappa < wp_Wdown || wp_Wdown - rest > rest + ten_kappa - wp_Wdown)) {
    return 0;
  }
  return 2 * ulp <= rest && rest <= delta - 4 * ulp;
}
```
user: Converte this assembly snippet into its equivalent C code:

```asm
<round_weed>:
  endbr64
  push   %rbp
  push   %rbx
  mov    %rdi,%r10
  mov    %rdx,%rbx
  mov    %rcx,%rdi
  mov    0x18(%rsp),%rbp
  sub    %rbp,%rdx
  cmp    %r8,%rdx
  jle    L17
  mov    %esi,%r11d
  mov    %rcx,%rax
  sub    %r8,%rax
  cmp    %rax,%r9
  jg     L99
  lea    (%r8,%r9,1),%rcx
  mov    %rdi,%rax
  sub    %rcx,%rax
  movslq %esi,%rcx
  lea    -0x1(%r10,%rcx,1),%rcx
  jmp    L89
L79:
  mov    %rsi,%r8
  jmp    L17
L129:
  mov    %rdi,%rax
  sub    %r8,%rax
  cmp    %r9,%rax
  jl     L99
  add    %r8,%r9
  mov    $0x0,%eax
  cmp    %rbx,%r9
  jl     L48
  mov    %rbx,%rdx
  sub    %r8,%rdx
  sub    %rbx,%r9
  cmp    %r9,%rdx
  jle    L99
  jmp    L48
L33:
  subb   $0x1,(%rcx)
  sub    %r9,%rax
  jl     L99
L89:
  mov    %r8,%rsi
  add    %r9,%r8
  cmp    %rdx,%r8
  jl     L33
  mov    %rdx,%rcx
  sub    %rsi,%rcx
  mov    %r8,%rax
  sub    %rdx,%rax
  cmp    %rax,%rcx
  jl     L79
  movslq %r11d,%r11
  subb   $0x1,-0x1(%r10,%r11,1)
L17:
  add    %rbp,%rbx
  cmp    %r8,%rbx
  jg     L129
L99:
  lea    0x0(%rbp,%rbp,1),%rdx
  mov    $0x0,%eax
  cmp    %r8,%rdx
  jg     L48
  shl    $0x2,%rbp
  sub    %rbp,%rdi
  cmp    %r8,%rdi
  setge  %al
  movzbl %al,%eax
L48:
  pop    %rbx
  pop    %rbp
  ret
```

assistant: ```c
int round_weed(char *buffer, int len, uint64_t wp_W, uint64_t delta, uint64_t rest, uint64_t ten_kappa, uint64_t ulp) {
  uint64_t wp_Wup = wp_W - ulp;
  uint64_t wp_Wdown = wp_W + ulp;
  while (rest < wp_Wup && delta - rest >= ten_kappa && (rest + ten_kappa < wp_Wup || wp_Wup - rest >= rest + ten_kappa - wp_Wup)) {
    --buffer[len - 1];
    rest += ten_kappa;
  }
  if (rest < wp_Wdown && delta - rest >= ten_kappa && (rest + ten_kappa < wp_Wdown || wp_Wdown - rest > rest + ten_kappa - wp_Wdown)) {
    return 0;
  }
  return 2 * ulp <= rest && rest <= delta - 4 * ulp;
}
```
user: Translate the below assembly code into C programming language:

```asm
<round_weed>:
  endbr64
  push   %r12
  push   %rbp
  mov    %rcx,%rbp
  mov    %rdx,%rcx
  push   %rbx
  mov    0x20(%rsp),%r12
  mov    %rdx,%rbx
  sub    %r12,%rcx
  cmp    %r8,%rcx
  jle    L55
  mov    %rbp,%rax
  sub    %r8,%rax
  cmp    %rax,%r9
  jg     L129
  movslq %esi,%r11
  lea    (%r8,%r9,1),%rax
  mov    %rbp,%rdx
  mov    %rdi,%r10
  movslq %r11d,%rsi
  sub    %rax,%rdx
  lea    -0x1(%rdi,%rsi,1),%rsi
  nopl   0x0(%rax)
L143:
  mov    %r8,%rdi
  mov    %rax,%r8
  cmp    %rcx,%rax
  jl     L45
  mov    %rcx,%rdx
  sub    %rcx,%rax
  sub    %rdi,%rdx
  cmp    %rax,%rdx
  jl     L153
  subb   $0x1,-0x1(%r10,%r11,1)
L55:
  add    %r12,%rbx
  cmp    %r8,%rbx
  jg     L78
L129:
  lea    (%r12,%r12,1),%rax
  cmp    %r8,%rax
  jle    L96
L43:
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
  nop
L45:
  subb   $0x1,(%rsi)
  sub    %r9,%rdx
  jl     L129
  add    %r9,%rax
  jmp    L143
  nopl   (%rax)
L96:
  shl    $0x2,%r12
  mov    $0x1,%eax
  sub    %r12,%rbp
  cmp    %r8,%rbp
  jl     L43
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  cs nopw 0x0(%rax,%rax,1)
L78:
  mov    %rbp,%rax
  sub    %r8,%rax
  cmp    %r9,%rax
  jl     L129
  add    %r8,%r9
  cmp    %rbx,%r9
  jl     L43
  mov    %rbx,%rax
  sub    %rbx,%r9
  sub    %r8,%rax
  cmp    %r9,%rax
  jg     L43
  lea    (%r12,%r12,1),%rax
  cmp    %r8,%rax
  jg     L43
  jmp    L96
  nopl   0x0(%rax)
L153:
  mov    %rdi,%r8
  add    %r12,%rbx
  cmp    %r8,%rbx
  jle    L129
  jmp    L78
```

assistant: ```c
int round_weed(char *buffer, int len, uint64_t wp_W, uint64_t delta, uint64_t rest, uint64_t ten_kappa, uint64_t ulp) {
  uint64_t wp_Wup = wp_W - ulp;
  uint64_t wp_Wdown = wp_W + ulp;
  while (rest < wp_Wup && delta - rest >= ten_kappa && (rest + ten_kappa < wp_Wup || wp_Wup - rest >= rest + ten_kappa - wp_Wup)) {
    --buffer[len - 1];
    rest += ten_kappa;
  }
  if (rest < wp_Wdown && delta - rest >= ten_kappa && (rest + ten_kappa < wp_Wdown || wp_Wdown - rest > rest + ten_kappa - wp_Wdown)) {
    return 0;
  }
  return 2 * ulp <= rest && rest <= delta - 4 * ulp;
}
```
user: What is the c source code of the assembly code below?

```asm
<round_weed>:
  endbr64
  push   %r12
  push   %rbp
  mov    %rcx,%rbp
  mov    %rdx,%rcx
  push   %rbx
  mov    0x20(%rsp),%r12
  mov    %rdx,%rbx
  sub    %r12,%rcx
  cmp    %r8,%rcx
  jle    L149
  mov    %rbp,%rax
  sub    %r8,%rax
  cmp    %rax,%r9
  jg     L75
  movslq %esi,%r11
  lea    (%r8,%r9,1),%rax
  mov    %rbp,%rdx
  mov    %rdi,%r10
  movslq %r11d,%rsi
  sub    %rax,%rdx
  lea    -0x1(%rdi,%rsi,1),%rsi
  nopl   0x0(%rax)
L74:
  mov    %r8,%rdi
  mov    %rax,%r8
  cmp    %rcx,%rax
  jl     L73
  mov    %rcx,%rdx
  sub    %rcx,%rax
  sub    %rdi,%rdx
  cmp    %rax,%rdx
  jl     L26
  subb   $0x1,-0x1(%r10,%r11,1)
L149:
  add    %r12,%rbx
  cmp    %r8,%rbx
  jg     L107
L75:
  lea    (%r12,%r12,1),%rax
  cmp    %r8,%rax
  jle    L109
L159:
  pop    %rbx
  xor    %eax,%eax
  pop    %rbp
  pop    %r12
  ret
  nop
L73:
  subb   $0x1,(%rsi)
  sub    %r9,%rdx
  jl     L75
  add    %r9,%rax
  jmp    L74
  nopl   (%rax)
L109:
  shl    $0x2,%r12
  mov    $0x1,%eax
  sub    %r12,%rbp
  cmp    %r8,%rbp
  jl     L159
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  cs nopw 0x0(%rax,%rax,1)
L107:
  mov    %rbp,%rax
  sub    %r8,%rax
  cmp    %r9,%rax
  jl     L75
  add    %r8,%r9
  cmp    %rbx,%r9
  jl     L159
  mov    %rbx,%rax
  sub    %rbx,%r9
  sub    %r8,%rax
  cmp    %r9,%rax
  jg     L159
  lea    (%r12,%r12,1),%rax
  cmp    %r8,%rax
  jg     L159
  jmp    L109
  nopl   0x0(%rax)
L26:
  mov    %rdi,%r8
  add    %r12,%rbx
  cmp    %r8,%rbx
  jle    L75
  jmp    L107
```

assistant: ```c
int round_weed(char *buffer, int len, uint64_t wp_W, uint64_t delta, uint64_t rest, uint64_t ten_kappa, uint64_t ulp) {
  uint64_t wp_Wup = wp_W - ulp;
  uint64_t wp_Wdown = wp_W + ulp;
  while (rest < wp_Wup && delta - rest >= ten_kappa && (rest + ten_kappa < wp_Wup || wp_Wup - rest >= rest + ten_kappa - wp_Wup)) {
    --buffer[len - 1];
    rest += ten_kappa;
  }
  if (rest < wp_Wdown && delta - rest >= ten_kappa && (rest + ten_kappa < wp_Wdown || wp_Wdown - rest > rest + ten_kappa - wp_Wdown)) {
    return 0;
  }
  return 2 * ulp <= rest && rest <= delta - 4 * ulp;
}
```
user: What is the c source code of the assembly code below?

```asm
<pack_chars_tail>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  movl   $0x0,-0xc(%rbp)
  mov    -0x20(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    %rax,-0x8(%rbp)
  cmpq   $0x5,-0x20(%rbp)
  ja     L9
  mov    -0x20(%rbp),%rax
  lea    0x0(,%rax,4),%rdx
  lea    D16(%rip),%rax
  mov    (%rdx,%rax,1),%eax
  cltq
  lea    D16(%rip),%rdx
  add    %rdx,%rax
  notrack jmp *%rax
  mov    -0x8(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <encode_packchar@plt>
  shl    $0x6,%eax
  xor    %eax,-0xc(%rbp)
  mov    -0x8(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <encode_packchar@plt>
  shl    $0xb,%eax
  xor    %eax,-0xc(%rbp)
  mov    -0x8(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <encode_packchar@plt>
  shl    $0x10,%eax
  xor    %eax,-0xc(%rbp)
  mov    -0x8(%rbp),%rax
  lea    -0x1(%rax),%rdx
  mov    %rdx,-0x8(%rbp)
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <encode_packchar@plt>
  shl    $0x15,%eax
  xor    %eax,-0xc(%rbp)
  mov    -0x8(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  mov    %eax,%edi
  call   <encode_packchar@plt>
  shl    $0x1a,%eax
  xor    %eax,-0xc(%rbp)
L9:
  mov    -0xc(%rbp),%eax
  leave
  ret
```

assistant: ```c
uint32_t pack_chars_tail(const char *str, size_t size) {
  uint32_t h = 0;
  const char *pos = (str + size - 1);
  switch (size) {
  case 5:
    h ^= encode_packchar(*pos--) << (1 + (5 * 1));
  case 4:
    h ^= encode_packchar(*pos--) << (1 + (5 * 2));
  case 3:
    h ^= encode_packchar(*pos--) << (1 + (5 * 3));
  case 2:
    h ^= encode_packchar(*pos--) << (1 + (5 * 4));
  case 1:
    h ^= encode_packchar(*pos) << (1 + (5 * 5));
  }
  return h;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<pack_chars_tail>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  lea    -0x1(%rsi,%rdi,1),%rbx
  cmp    $0x5,%rsi
  ja     L22
  lea    D9(%rip),%rdx
  movslq (%rdx,%rsi,4),%rax
  add    %rdx,%rax
  notrack jmp *%rax
  lea    -0x1(%rbx),%rbp
  movsbl (%rbx),%edi
  call   <encode_packchar@plt>
  shl    $0x6,%eax
  mov    %eax,%r12d
  mov    %rbp,%rbx
  jmp    L29
  mov    $0x0,%r12d
L29:
  lea    -0x1(%rbx),%r13
  movsbl (%rbx),%edi
  call   <encode_packchar@plt>
  shl    $0xb,%eax
  mov    %eax,%ebp
  xor    %r12d,%ebp
  mov    %r13,%rbx
L10:
  lea    -0x1(%rbx),%r13
  movsbl (%rbx),%edi
  call   <encode_packchar@plt>
  shl    $0x10,%eax
  mov    %eax,%r12d
  xor    %ebp,%r12d
L1:
  lea    -0x1(%r13),%rbx
  movsbl 0x0(%r13),%edi
  call   <encode_packchar@plt>
  shl    $0x15,%eax
  mov    %eax,%ebp
  xor    %r12d,%ebp
L34:
  movsbl (%rbx),%edi
  call   <encode_packchar@plt>
  shl    $0x1a,%eax
  xor    %ebp,%eax
L8:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  mov    $0x0,%ebp
  jmp    L10
  mov    %rbx,%r13
  mov    $0x0,%r12d
  jmp    L1
  mov    $0x0,%ebp
  jmp    L34
L22:
  mov    $0x0,%eax
  jmp    L8
```

assistant: ```c
uint32_t pack_chars_tail(const char *str, size_t size) {
  uint32_t h = 0;
  const char *pos = (str + size - 1);
  switch (size) {
  case 5:
    h ^= encode_packchar(*pos--) << (1 + (5 * 1));
  case 4:
    h ^= encode_packchar(*pos--) << (1 + (5 * 2));
  case 3:
    h ^= encode_packchar(*pos--) << (1 + (5 * 3));
  case 2:
    h ^= encode_packchar(*pos--) << (1 + (5 * 4));
  case 1:
    h ^= encode_packchar(*pos) << (1 + (5 * 5));
  }
  return h;
}
```
user: What would the C source look like for the assembly code provided here?

```asm
<pack_chars_tail>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  lea    -0x1(%rsi,%rdi,1),%rbx
  sub    $0x8,%rsp
  cmp    $0x5,%rsi
  ja     L32
  lea    D2(%rip),%rdx
  movslq (%rdx,%rsi,4),%rax
  add    %rdx,%rax
  notrack jmp *%rax
  xchg   %ax,%ax
  xor    %r12d,%r12d
L39:
  movsbl (%rbx),%edi
  lea    -0x1(%rbx),%r13
  mov    %r13,%rbx
  call   <encode_packchar@plt>
  shl    $0xb,%eax
  mov    %eax,%ebp
  xor    %r12d,%ebp
L48:
  movsbl (%rbx),%edi
  lea    -0x1(%rbx),%r13
  call   <encode_packchar@plt>
  shl    $0x10,%eax
  mov    %eax,%r12d
  xor    %ebp,%r12d
L11:
  movsbl 0x0(%r13),%edi
  lea    -0x1(%r13),%rbx
  call   <encode_packchar@plt>
  shl    $0x15,%eax
  mov    %eax,%ebp
  xor    %r12d,%ebp
L14:
  movsbl (%rbx),%edi
  call   <encode_packchar@plt>
  shl    $0x1a,%eax
  xor    %ebp,%eax
L55:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   (%rax)
  xor    %ebp,%ebp
  jmp    L48
  nopl   0x0(%rax)
  mov    %rbx,%r13
  xor    %r12d,%r12d
  jmp    L11
  xor    %ebp,%ebp
  jmp    L14
  nopl   0x0(%rax)
  movsbl (%rbx),%edi
  lea    -0x1(%rbx),%rbp
  mov    %rbp,%rbx
  call   <encode_packchar@plt>
  shl    $0x6,%eax
  mov    %eax,%r12d
  jmp    L39
L32:
  xor    %eax,%eax
  jmp    L55
```

assistant: ```c
uint32_t pack_chars_tail(const char *str, size_t size) {
  uint32_t h = 0;
  const char *pos = (str + size - 1);
  switch (size) {
  case 5:
    h ^= encode_packchar(*pos--) << (1 + (5 * 1));
  case 4:
    h ^= encode_packchar(*pos--) << (1 + (5 * 2));
  case 3:
    h ^= encode_packchar(*pos--) << (1 + (5 * 3));
  case 2:
    h ^= encode_packchar(*pos--) << (1 + (5 * 4));
  case 1:
    h ^= encode_packchar(*pos) << (1 + (5 * 5));
  }
  return h;
}
```
user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<pack_chars_tail>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  lea    -0x1(%rsi,%rdi,1),%rbx
  sub    $0x8,%rsp
  cmp    $0x5,%rsi
  ja     L58
  lea    D6(%rip),%rdx
  movslq (%rdx,%rsi,4),%rax
  add    %rdx,%rax
  notrack jmp *%rax
  xchg   %ax,%ax
  xor    %r12d,%r12d
L50:
  movsbl (%rbx),%edi
  lea    -0x1(%rbx),%r13
  mov    %r13,%rbx
  call   <encode_packchar@plt>
  shl    $0xb,%eax
  mov    %eax,%ebp
  xor    %r12d,%ebp
L30:
  movsbl (%rbx),%edi
  lea    -0x1(%rbx),%r13
  call   <encode_packchar@plt>
  shl    $0x10,%eax
  mov    %eax,%r12d
  xor    %ebp,%r12d
L31:
  movsbl 0x0(%r13),%edi
  lea    -0x1(%r13),%rbx
  call   <encode_packchar@plt>
  shl    $0x15,%eax
  mov    %eax,%ebp
  xor    %r12d,%ebp
L5:
  movsbl (%rbx),%edi
  call   <encode_packchar@plt>
  shl    $0x1a,%eax
  xor    %ebp,%eax
L19:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   (%rax)
  xor    %ebp,%ebp
  jmp    L30
  nopl   0x0(%rax)
  mov    %rbx,%r13
  xor    %r12d,%r12d
  jmp    L31
  xor    %ebp,%ebp
  jmp    L5
  nopl   0x0(%rax)
  movsbl (%rbx),%edi
  lea    -0x1(%rbx),%rbp
  mov    %rbp,%rbx
  call   <encode_packchar@plt>
  shl    $0x6,%eax
  mov    %eax,%r12d
  jmp    L50
L58:
  xor    %eax,%eax
  jmp    L19
```

assistant: ```c
uint32_t pack_chars_tail(const char *str, size_t size) {
  uint32_t h = 0;
  const char *pos = (str + size - 1);
  switch (size) {
  case 5:
    h ^= encode_packchar(*pos--) << (1 + (5 * 1));
  case 4:
    h ^= encode_packchar(*pos--) << (1 + (5 * 2));
  case 3:
    h ^= encode_packchar(*pos--) << (1 + (5 * 3));
  case 2:
    h ^= encode_packchar(*pos--) << (1 + (5 * 4));
  case 1:
    h ^= encode_packchar(*pos) << (1 + (5 * 5));
  }
  return h;
}
```