I thought most old traffic light controllers used 1802s. Some early printers used Prolog cpu boards with 4004s. They also used 4004s in some early cash registers as well but I'd not known they were used in traffic lights. I have an example of some code written for what I believe was a printer that came off a Prolog board. One can see that it took a simple keyboard input and wrote out several single value including a CRLF to some terminal device. It was interesting that I found a new use for the JCN instruction in this code. It is possible to create an "always don't jump" or a SKIP instruction. It messed up my disassembly because it didn't understand the operation of a conditional jump with not condition. I was able to modify my disassembler to handle this as well and added a new non-Intel instruction to my assembler. Dwight
________________________________ From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Fred Cisin via cctalk <cctalk@classiccmp.org> Sent: Tuesday, November 26, 2019 7:23 PM To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> Subject: Re: The information age On Tue, 26 Nov 2019, Jim Manley via cctalk wrote: > " ... like to write their own version" > It's a good thing no one else ever wrote their own version of history ... > oh, wait, _everyone_ does that! They once called it "To the victor goes > the spoils (of victory)." "History is written by the victors" is often attributed to Winston Churchill, but its origin is really unkown. > It's "lawsuit", not "law suite", BTW. Slingers of code and CAD layouts > have to get every single character and trace absolutely correct. Sometimes it becomes a suite of suits filed by the suits.
