DEVICE		16V8;
TITLE		BASIC FLIP-FLOPS;
NAME		C.L.G;
SIGNATURE	B_FLOPS;

/*   This example can be found on page 5-10 in the GAL handbook.           */


PIN	2	=	S;
PIN	3	=	R;
PIN	18	=	QSC;
PIN	19	=	QST;


PIN	5	=	T;
PIN	17	=	QTT;
PIN	16	=	QTC;

PIN	6	=	D;
PIN	15	=	QDT;
PIN	14	=	QDC;

PIN	7	=	J;
PIN	8	=	K;
PIN	13	=	QJT;
PIN	12	=	QJC;

PIN	1	=	CLK;
PIN	4	=	PR;
PIN	9	=	CLR;
PIN	11	=	OE;


/*	RS LATCH            */

QST	= !S |  (R & QST);
QSC	= !R |  (S & QSC);

/*	T FLIP-FLOP         */

QTT.D	= PR  | (!CLR & !T & QTT) | (!CLR &  T & QTC);
QTC.D	= CLR | (!PR  & !T & QTC) | (!PR  &  T & QTT);

/*	D FLIP-FLOP         */

QDT.D	= PR  | ( D & !CLR);
QDC.D	= CLR | (!D & !PR );

/*	JK FLIP-FLOP        */

QJT.D	= PR  | ( J & QJC & !CLR) | (!K & QJT & !CLR);
QJC.D	= CLR | (!J & QJC & !PR ) | ( K & QJT & !PR );