user: 请从给定的汇编指令推导出C源代码:

```asm
<Usage>:
  endbr64
  sub    $0x8,%rsp
  lea    D181(%rip),%rdi
  call   <printf@plt>
  lea    D21(%rip),%rdi
  call   <printf@plt>
  lea    D316(%rip),%rdi
  call   <printf@plt>
  lea    D250(%rip),%rdi
  call   <printf@plt>
  lea    D154(%rip),%rdi
  call   <printf@plt>
  lea    D184(%rip),%rdi
  call   <printf@plt>
  lea    D4(%rip),%rdi
  call   <printf@plt>
  lea    D70(%rip),%rdi
  call   <printf@plt>
  lea    D109(%rip),%rdi
  call   <printf@plt>
  lea    D3(%rip),%rdi
  call   <printf@plt>
  lea    D310(%rip),%rdi
  call   <printf@plt>
  lea    D289(%rip),%rdi
  call   <printf@plt>
  lea    D147(%rip),%rdi
  call   <printf@plt>
  lea    D194(%rip),%rdi
  call   <printf@plt>
  lea    D62(%rip),%rdi
  call   <printf@plt>
  lea    D168(%rip),%rdi
  call   <printf@plt>
  lea    D191(%rip),%rdi
  call   <printf@plt>
  lea    D30(%rip),%rdi
  call   <printf@plt>
  lea    D105(%rip),%rdi
  call   <printf@plt>
  lea    D96(%rip),%rdi
  call   <printf@plt>
  lea    D0(%rip),%rdi
  call   <printf@plt>
  lea    D287(%rip),%rdi
  call   <printf@plt>
  lea    D261(%rip),%rdi
  call   <printf@plt>
  lea    D298(%rip),%rdi
  call   <printf@plt>
  lea    D167(%rip),%rdi
  call   <printf@plt>
  lea    D193(%rip),%rdi
  call   <printf@plt>
  lea    D203(%rip),%rdi
  call   <printf@plt>
  lea    D69(%rip),%rdi
  call   <printf@plt>
  lea    D269(%rip),%rdi
  call   <printf@plt>
  lea    D54(%rip),%rdi
  call   <printf@plt>
  lea    D297(%rip),%rdi
  call   <printf@plt>
  lea    D133(%rip),%rdi
  add    $0x8,%rsp
  jmp    1050 <printf@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D181
datatype: string
name: extract_symbolic_data
arguments: data_label: D21
datatype: string
name: extract_symbolic_data
arguments: data_label: D316
datatype: string
name: extract_symbolic_data
arguments: data_label: D250
datatype: string
name: extract_symbolic_data
arguments: data_label: D154
datatype: string
name: extract_symbolic_data
arguments: data_label: D184
datatype: string
name: extract_symbolic_data
arguments: data_label: D4
datatype: string
name: extract_symbolic_data
arguments: data_label: D70
datatype: string
name: extract_symbolic_data
arguments: data_label: D109
datatype: string
name: extract_symbolic_data
arguments: data_label: D3
datatype: string
name: extract_symbolic_data
arguments: data_label: D310
datatype: string
name: extract_symbolic_data
arguments: data_label: D289
datatype: string
name: extract_symbolic_data
arguments: data_label: D147
datatype: string
name: extract_symbolic_data
arguments: data_label: D194
datatype: string
name: extract_symbolic_data
arguments: data_label: D62
datatype: string
name: extract_symbolic_data
arguments: data_label: D168
datatype: string
name: extract_symbolic_data
arguments: data_label: D191
datatype: string
name: extract_symbolic_data
arguments: data_label: D30
datatype: string
name: extract_symbolic_data
arguments: data_label: D105
datatype: string
name: extract_symbolic_data
arguments: data_label: D96
datatype: string
name: extract_symbolic_data
arguments: data_label: D0
datatype: string
name: extract_symbolic_data
arguments: data_label: D287
datatype: string
name: extract_symbolic_data
arguments: data_label: D261
datatype: string
name: extract_symbolic_data
arguments: data_label: D298
datatype: string
name: extract_symbolic_data
arguments: data_label: D167
datatype: string
name: extract_symbolic_data
arguments: data_label: D193
datatype: string
name: extract_symbolic_data
arguments: data_label: D203
datatype: string
name: extract_symbolic_data
arguments: data_label: D69
datatype: string
name: extract_symbolic_data
arguments: data_label: D269
datatype: string
name: extract_symbolic_data
arguments: data_label: D54
datatype: string
name: extract_symbolic_data
arguments: data_label: D297
datatype: string
name: extract_symbolic_data
arguments: data_label: D133
datatype: string

tool: D181: pifacertc [-d nBusDevId] [-i 0|1] [-o option]


tool: D21: pifacertc [-d nBusDevId] [-i 0|1] [-p] [-u]


tool: D316: pifacertc [-d nBusDevId] [-i 0|1] [-r] [-w "..."]


tool: D250: pifacertc [-d nBusDevId] [-i 0|1] [-c] [[[[[cc]yy]mm]dd]HH]MM[.ss]


tool: D154: pifacertc [-d nBusDevId] [-i 0|1] [-s]


tool: D184: pifacertc [-d nBusDevId] [-i 0|1] [-d]



tool: D4: Set or get the current date/time from the PiFace RTC, or get or set options.



tool: D70: -b nn              Use the nBusDevId specified (7-bit address)


tool: D109: -c                 Set the real time clock from the computer clock.


tool: D3: -d                 Output the date/time as input to the date command.


tool: D310: -h                 Prints this help.


tool: D289: -i 0|1             Use /dev/iic0 or /dev/iic1 (will guess without).


tool: D147: -o option          Set an option on the HW RTC.

The following options are supported



tool: D194:   init      Initialize the RTC, and set the date to the current date/time


tool: D62:   bat       Enable battery backup (*)


tool: D168:   nobat     Disable battery backup (*)


tool: D191:   batstat   Show the battery status


tool: D30:   clrnvram  Clear the NVRAM


tool: D105:   cal       Calibrate the device (write 0x47 to TRIM register)


tool: D96:   osc       Enable the oscillator (*)


tool: D0:   noosc     Disable the oscillator (*)


tool: D287:   oscset    Get the oscillator setting


tool: D261:   oscstat   Display the oscialltor status


tool: D298:   pwrstat   Get the power fail status


tool: D167:   clrpwr    Clear the powerfail status bit if set



tool: D193: Options can be separated with a comma, e.g. "pifacertc -o bat,osc".


tool: D203: (*) indicates options that can corrupt the RTC if used incorrectly.



tool: D69: -p                 Print the time that the power was turned off at or failed


tool: D269: -r                 Read the contents of the NVRAM from the Real Time Clock.


tool: D54: -s                 Set the computer clock from the RTC.


tool: D297: -u                 Print the time that the power was turned on or restored


tool: D133: -w "..."           Write to the NVRAM on the Real Time Clock.


assistant: ```c
void Usage(void) {
  (void)printf("pifacertc [-d nBusDevId] [-i 0|1] [-o option]\n");
  (void)printf("pifacertc [-d nBusDevId] [-i 0|1] [-p] [-u]\n");
  (void)printf("pifacertc [-d nBusDevId] [-i 0|1] [-r] [-w \"...\"]\n");
  (void)printf("pifacertc [-d nBusDevId] [-i 0|1] [-c] [[[[[cc]yy]mm]dd]HH]MM[.ss]\n");
  (void)printf("pifacertc [-d nBusDevId] [-i 0|1] [-s]\n");
  (void)printf("pifacertc [-d nBusDevId] [-i 0|1] [-d]\n\n");
  (void)printf("Set or get the current date/time from the PiFace RTC, or get or set options.\n\n");
  (void)printf("-b nn              Use the nBusDevId specified (7-bit address)\n");
  (void)printf("-c                 Set the real time clock from the computer clock.\n");
  (void)printf("-d                 Output the date/time as input to the date command.\n");
  (void)printf("-h                 Prints this help.\n");
  (void)printf("-i 0|1             Use /dev/iic0 or /dev/iic1 (will guess without).\n");
  (void)printf("-o option          Set an option on the HW RTC.\n\nThe following options are supported\n\n");
  (void)printf("  init      Initialize the RTC, and set the date to the current date/time\n");
  (void)printf("  bat       Enable battery backup (*)\n");
  (void)printf("  nobat     Disable battery backup (*)\n");
  (void)printf("  batstat   Show the battery status\n");
  (void)printf("  clrnvram  Clear the NVRAM\n");
  (void)printf("  cal       Calibrate the device (write 0x47 to TRIM register)\n");
  (void)printf("  osc       Enable the oscillator (*)\n");
  (void)printf("  noosc     Disable the oscillator (*)\n");
  (void)printf("  oscset    Get the oscillator setting\n");
  (void)printf("  oscstat   Display the oscialltor status\n");
  (void)printf("  pwrstat   Get the power fail status\n");
  (void)printf("  clrpwr    Clear the powerfail status bit if set\n\n");
  (void)printf("Options can be separated with a comma, e.g. \"pifacertc -o bat,osc\".\n");
  (void)printf("(*) indicates options that can corrupt the RTC if used incorrectly.\n\n");
  (void)printf("-p                 Print the time that the power was turned off at or failed\n");
  (void)printf("-r                 Read the contents of the NVRAM from the Real Time Clock.\n");
  (void)printf("-s                 Set the computer clock from the RTC.\n");
  (void)printf("-u                 Print the time that the power was turned on or restored\n");
  (void)printf("-w \"...\"           Write to the NVRAM on the Real Time Clock.\n");
}
```