/*
按下 set 鍵，L1 會亮，放開就熄掉。
按下 down 鍵，L2 會亮，放開就熄掉。
按下 mode 鍵，L3 會亮，放開就熄掉。
*/

#include "..\..\lib\8000a.h"

void ShowLed5(unsigned cnt)
{ int i;

	for(i=5;i>0;i--){
		Show5DigitLed(i,cnt%10);
		cnt/=10;
	}		
}

extern int WDT_Pin; 
extern unsigned char far *WdtFlag;

#if 0
#define SKEY_SET    1
#define SKEY_DOWN   2
#define SKEY_MODE   3
#define SKEY_UP     4
extern unsigned char far * const KeyStatus;
#define SKEY_SET_DOWN   0x08
#define SKEY_DOWN_DOWN  0x04
#define SKEY_UP_DOWN    0x02
#define SKEY_MODE_DOWN  0x01
#endif

// #define USE_NEW_TIMER

void main(int argc,char *argv[])
{ int key;
  unsigned cnt=0;
  long st;
  unsigned char OldKeyStatus,ks;
  int bUseNewTimer=1;
  int (*_IsSystemKey_)(void);
  int (*_GetSystemKey_)(void);
  
    
	InitLib();
	if(argc>1){
		bUseNewTimer=0;
	}
	
	if(bUseNewTimer){
		Print("Install New Timer ISR\r\n");
		InstallNewTimer();
		_IsSystemKey_=IsSystemKey;
		_GetSystemKey_=GetSystemKey;
	}
	else {
		Print("Use OS Timer ISR\r\n");
		_IsSystemKey_=IsSystemKey;
		_GetSystemKey_=GetSystemKey;
	}	
    Init5DigitLed();
    ShowLed5(cnt);
	st=GetTimeTicks();
	Print("[WDT_Pin=%d,WdtFlag=%p]",WDT_Pin,WdtFlag);
	EnableWDT();
	_asm cli
	OldKeyStatus=*KeyStatus;
	_asm sti;
	while(1){
		if(GetTimeTicks()-st>=100){
			st+=100;
		    ShowLed5(++cnt);
		}
		RefreshWDT();
		if(_IsSystemKey_()){
			key=_GetSystemKey_();
			Print("[key=%X",key);
			if(key==SKEY_SET) Puts("(SET)]\r\n");
			else if(key==SKEY_DOWN) Puts("(DOWN)]\r\n");
			else if(key==SKEY_MODE) Puts("(MODE)]\r\n");
			else if(key==SKEY_UP) Puts("(UP)]\r\n");
		}

		_asm cli
		ks=*KeyStatus;	// ks=新的狀態
		_asm sti;
		if(ks != OldKeyStatus){
			ks ^= OldKeyStatus; // ks = 有改變的按鍵 
			OldKeyStatus ^= ks; // OldKeyStatus=新的狀態
			//ks ^= OldKeyStatus; //兩者交換完畢
			if(ks & SKEY_MODE_DOWN){
				// MODE 按鍵有變化
				Print("[MODE key:%s]\r\n",OldKeyStatus & SKEY_MODE_DOWN ? "DOWN" : "UP");
				if(OldKeyStatus & SKEY_MODE_DOWN) SetLedL3(LED_ON);
				else SetLedL3(LED_OFF);
			}
			if(ks & SKEY_UP_DOWN){
				// UP 按鍵有變化
				Print("[UP key:%s]\r\n",OldKeyStatus & SKEY_UP_DOWN ? "DOWN" : "UP");
			}
			if(ks & SKEY_DOWN_DOWN){
				// MODE 按鍵有變化
				Print("[DOWN key:%s]\r\n",OldKeyStatus & SKEY_DOWN_DOWN ? "DOWN" : "UP");
				if(OldKeyStatus & SKEY_DOWN_DOWN) SetLedL2(LED_ON);
				else SetLedL2(LED_OFF);
			}
			if(ks & SKEY_SET_DOWN){
				// SET 按鍵有變化
				Print("[SET key:%s]\r\n",OldKeyStatus & SKEY_SET_DOWN ? "DOWN" : "UP");
				if(OldKeyStatus & SKEY_SET_DOWN) SetLedL1(LED_ON);
				else SetLedL1(LED_OFF);
			}
		}
		if(Kbhit()){
			break;
		}    
	}
	if(bUseNewTimer) RestoreNewTimer();
	DisableWDT();
	Getch();
}