simple.abl

自己编写的GAL可编程逻辑电路的编译软件abel4的windows界面

module simple 
title 'Simple ABEL example
Dan Poole   Data I/O Corp   15 Oct 1987'

		U7	device	'P14H4';
	A1,A2,A3	pin 1,2,3;
	N1,N2,N3	pin 4,5,6;
	AND,NAND	pin 14,15;

equations
	 AND	= A1 & A2 & A3;

	!NAND	= N1 & N2 & N3;

test_vectors  'Test And Gate'
	      ( [A1,A2,A3] -> AND )	
		[ 0, 0, 0] ->  0;
		[ 1, 0, 0] ->  0;
		[ 0, 1, 0] ->  0;
		[ 0, 0, 1] ->  0;
		[ 1, 1, 1] ->  1;

test_vectors  'Test Nand Gate'
	      ( [N1,N2,N3] -> NAND )	
		[ 0, 0, 0] ->  1;
		[ 1, 0, 0] ->  1;
		[ 0, 1, 0] ->  1;
		[ 0, 0, 1] ->  1;
		[ 1, 1, 1] ->  0;
end simple