unsigned char LED @ 0x21;
bit volatile LEDdp@((unsigned)&LED*8+0;
bit volatile LEDg@((unsigned)&LED*8+1;
bit volatile LEDf@((unsigned)&LED*8+2;
bit volatile LEDe@((unsigned)&LED*8+3;
bit volatile LEDd@((unsigned)&LED*8+4;
bit volatile LEDc@((unsigned)&LED*8+5;
bit volatile LEDb@((unsigned)&LED*8+6;
bit volatile LEDa@((unsigned)&LED*8+7;