pbFORTH : 127


Robotics / RCX / pbFORTH / 127	126 \| 128

Subject:	RE: AI and even more exiciting stuff
Newsgroups:	lugnet.robotics, lugnet.robotics.rcx.pbforth
Date:	Mon, 18 Oct 1999 13:15:27 GMT
Viewed:	6 times

Luis wrote: > > Not that I am need of the room (yet...). I have only pretty recently > > actually got this stuff, and I just want to know my limits, as I am a > > curious creature myself. > > Well, your main limits (once you get rid of the standard firmware) are: > 1) memory. While you'd be surprised how big 32K actually is, it can be a > problem. > 2) speed. When you need floating point calculations, the speed > issue can be > painful. ACK! Don't they teach fixed point any more? I encourage anyone to post an application where the dynamic range of signed 32 bit values is outside the range of numbers which would be useful to an RCX application! I'm not flaming, I'm just trying to figure out why eveyone is soooo fixated on floating point. Cheers, Ralph Hempel - P.Eng -------------------------------------------------------- Check out pbFORTH for LEGO Mindstorms at: <http://www.hempeldesigngroup.com/lego/pbFORTH> -------------------------------------------------------- Reply to: rhempel at bmts dot com --------------------------------------------------------

Message has 2 Replies:

		RE: AI and even more exiciting stuff
(...) Well, we are trying to teach AI, not embedded systems :) Towards that end, we've sort of tried to simplify things as much as possible for the kids who are taking the class, since most of them will probably never do an embedded system again. (...) (25 years ago, 18-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)

		Re: AI and even more exiciting stuff
(...) Here is a simple example where 32 bits isn't enough precision. Task: Given a robot with at least one motor, rotational velocity sensors [1] on each motor and a light sensor, implement a program to compile statistics on motor speed and light (...) (25 years ago, 25-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)

Message is in Reply To:

		Re: AI and even more exiciting stuff
(...) Good luck. You'll find links to my HOWTO in various places- feel free to ask if you have problems. (...) Forth is a language for embedded systems, and since it is designed for embedded systems, (i.e., very low level) resembles assembly in some (...) (25 years ago, 18-Oct-99, to lugnet.robotics)

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