RE: PDP-8 signed overflow detection

2019-03-25 Thread mike via cctalk
Kyle and Vince, thanks for the education. Not sure I can use this right now, but it is always helpful to see how others attack a problem. Mike Zahorik (414) 254-6768 -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Kyle Owen via cctalk Sent: Monday, Marc

Re: PDP-8 signed overflow detection

2019-03-25 Thread Charles Dickman via cctalk
On Mon, Mar 25, 2019 at 1:26 AM Kyle Owen via cctalk wrote: > > All this to fix a ~45 year old bug in Spacewar! where a ship's velocity > overflows, causing the ship to "bounce" off of nothing. > > I would have figured it was bouncing off a chunk of dark matter. Cool stuff! PDP-8 programming alw