> From: Johnny Billquist > I wonder if it really uses 18 bit addresses in the console.
Yes (if the question is 'for input'). What it puts out on the bus I haven't checked, definitely BBS7 plus the low 13 bits (0-12), dunno about BDAL13-21. > From: Ben Sinclair > For 18 bit addresses, I assume I would look at 74400 instead? No, that's only 15 bits. (In octal, each full digit is 3 bits. So an 18-bit address will range from 000000 to 777777; 16-bit from 000000 to 177777, etc.) Noel