user: 请从给定的汇编指令推导出C源代码:

```asm
<printHelp>:
  endbr64
  push   %rbx
  mov    %rdi,%rbx
  lea    D139(%rip),%rdi
  call   <printf@plt>
  mov    %rbx,%rdi
  call   <printUsage@plt>
  lea    D46(%rip),%rdi
  call   <printf@plt>
  lea    D61(%rip),%rdi
  call   <printf@plt>
  lea    D0(%rip),%rdi
  call   <printf@plt>
  lea    D120(%rip),%rdi
  call   <printf@plt>
  lea    D101(%rip),%rdi
  call   <printf@plt>
  lea    D25(%rip),%rdi
  call   <printf@plt>
  lea    D26(%rip),%rdi
  call   <printf@plt>
  lea    D109(%rip),%rdi
  call   <printf@plt>
  lea    D17(%rip),%rdi
  call   <printf@plt>
  lea    D160(%rip),%rdi
  call   <printf@plt>
  lea    D24(%rip),%rdi
  call   <printf@plt>
  lea    D11(%rip),%rdi
  call   <printf@plt>
  lea    D80(%rip),%rdi
  call   <printf@plt>
  lea    D158(%rip),%rdi
  call   <printf@plt>
  lea    D82(%rip),%rdi
  call   <printf@plt>
  lea    D38(%rip),%rdi
  call   <printf@plt>
  pop    %rbx
  ret
```

tool_calls: name: read_data
arguments: label: D139
data_type: string
name: read_data
arguments: label: D46
data_type: string
name: read_data
arguments: label: D61
data_type: string
name: read_data
arguments: label: D0
data_type: string
name: read_data
arguments: label: D120
data_type: string
name: read_data
arguments: label: D101
data_type: string
name: read_data
arguments: label: D25
data_type: string
name: read_data
arguments: label: D26
data_type: string
name: read_data
arguments: label: D109
data_type: string
name: read_data
arguments: label: D17
data_type: string
name: read_data
arguments: label: D160
data_type: string
name: read_data
arguments: label: D24
data_type: string
name: read_data
arguments: label: D11
data_type: string
name: read_data
arguments: label: D80
data_type: string
name: read_data
arguments: label: D158
data_type: string
name: read_data
arguments: label: D82
data_type: string
name: read_data
arguments: label: D38
data_type: string

tool: D139: Sndmix Help:


tool: D46: 



tool: D61: Utility:


tool: D0: This program reads the files passed as arguments, scales the sample data by


tool: D120: their "mult", then adds together their sample data to make a single sound.



tool: D101: If the sounds have unequal channels, zeroed out channels will be added to the


tool: D25: one with fewer channels.


tool: D26: If the sounds have different bit depths, the smaller samples are scaled up to


tool: D109: match the larger ones.



tool: D17: Defaults:


tool: D160: Default output is in CS229 format (see -w option to change). 


tool: D24: Default output is to stdout unless another file is given (see -o)


tool: D11: If no source files are given, file is read from stdin



tool: D80: Options:


tool: D158: -h		Print this screen


tool: D82: -o [fileName]	Output file to fileName


tool: D38: -w		Output in WAVE format


assistant: ```c
void printHelp(char *cmd) {
  printf("Sndmix Help:\n");
  printUsage(cmd);
  printf("\n\n");
  printf("Utility:\n");
  printf("This program reads the files passed as arguments, scales the sample data by\n");
  printf("their \"mult\", then adds together their sample data to make a single sound.\n\n");
  printf("If the sounds have unequal channels, zeroed out channels will be added to the\n");
  printf("one with fewer channels.\n");
  printf("If the sounds have different bit depths, the smaller samples are scaled up to\n");
  printf("match the larger ones.\n\n");
  printf("Defaults:\n");
  printf("Default output is in CS229 format (see -w option to change). \n");
  printf("Default output is to stdout unless another file is given (see -o)\n");
  printf("If no source files are given, file is read from stdin\n\n");
  printf("Options:\n");
  printf("-h\t\tPrint this screen\n");
  printf("-o [fileName]\tOutput file to fileName\n");
  printf("-w\t\tOutput in WAVE format\n");
}
```