 | | RE: AI and even more exiciting stuff
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(...) Yes, and no. It is an interpreter, that you can type (or upload) ASCII text to. It then compiles it into an efficient bytecode (really 16 bits) that lets you execute later. It allows for LOTS of variables and best of all, you don't need to be (...) (25 years ago, 18-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | RE: AI and even more exiciting stuff
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(...) 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 (...) (25 years ago, 18-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | RCX Firmware and SP
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Hi All, After a very frustrating weekend of fiddling with pbFORTH, I caved and asked Kekoa to help with a problem I was having with read_sensor() and pbFORTH. The problem we (mostly he) unearthed has to do with the SP and RCX firmware routines, so I (...) (25 years ago, 17-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.legos, lugnet.robotics.rcx.pbforth)
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| | RE: Rotaion Sensor Sampling Speed?
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(...) I thought the problem was that it vibrated itself? (...) <snip forth code, which looks cool :)> (...) Take a look at the code that Markus sent out a while ago with the new firmdl he cooked up, particularly the code in keepalive.c and the code (...) (25 years ago, 14-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | RE: Rotaion Sensor Sampling Speed?
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(...) Well, I'd need to vibrate things while looking at raw values, which is possible, I guess. I could run the gantry, smaple as long as possible and then store the value in an array... Something like: CREATE BUFFER 5000 CELLS ALLOT ( makes room (...) (25 years ago, 14-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | RE: pbForth
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(...) I think there are some C to FORTH translators at www.forth.org, but the problem is you need to configure them to run on your CPU and then to output FORTH compatible with your target. Not an easy task. Why not just learn FORTH? I learned about (...) (25 years ago, 14-Oct-99, to lugnet.robotics.rcx.pbforth)
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| | FW: Mindstorms/reinforcement learning
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-----Original Message----- From: Ralph Hempel [mailto:rhempel@bmts.com] Sent: Wednesday, October 13, 1999 11:59 AM To: Blake Winton Subject: RE: Mindstorms/reinforcement learning (...) Yes!!! The simple FORTH tutorial is good. Thanks for the link. (...) (25 years ago, 13-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | RE: Forth vs Assembler
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(...) There are a couple of reasons to choose pbFORTH over raw assembler... 1. Assembler requires an assembler, which means downloading and configuring the GNU tools on eiher Linux or Cygwin for Win9x. Not for the faint of heart. 2. Once you get (...) (25 years ago, 13-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | RE: Mindstorms/reinforcement learning
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(...) Declaring variables (almost any number of them) in pbFORTH is like this: VARIABLE FOO Fetching and storing is like this: 23 FOO ! ( this stores the value ) FOO @ ( this fetches the value ) Values are 16 bit integers - 32 bit doubles use a (...) (25 years ago, 13-Oct-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | RCX Image Uploader Wins Contest
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Hmmm - I just got emailed that I won the "Best Lightweight Use" of the TclTk programming language in a contest sponsored by Scriptics (URL) Here's the URL from Scriptics and if you follow the link to me on that page it'll take you right to my (...) (25 years ago, 25-Aug-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth)
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| | Re: New pbFORTH 106 release
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Hi Ralph, Thanks for the new release. I have a couple of questions: 1. How do I use BUTTON_GET? The documentation says it just expects to find an address on the stack, but I get this: RCX_BUTTON BUTTON_GET BUTTON_GET ? stack underflow 2. What (...) (25 years ago, 29-Jul-99, to lugnet.robotics.rcx.pbforth)
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| | New pbFORTH 106 release
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This is a bulk mailing of notice of the new pbFORTH 106 release. If you don't want to be on this list, please email me so I can take you off. The latest and greatest pbFORTH is now available. Enhancements include: 1. Fixed issues with timers (thanks (...) (25 years ago, 28-Jul-99, to lugnet.robotics.rcx, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx.legos)
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| | RE: TIMER 0 is flakey
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(...) That's not all. Seems like I've left half of the words using the old calling convention..... I'll get 1.0.6 out and posted by tomorrow, along with the TCL gui and a small test suite. Cheers, Ralph Hempel - P.Eng ---...--- The train stops at (...) (25 years ago, 28-Jul-99, to lugnet.robotics.rcx.pbforth)
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| | RE: Do the high resolution timers work?
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(...) Yep, you've got the parameters backwards. Try FFFF 0 timer_set. Also, I'm not sure about numbers above 0x8000... I'm working on a TclTk interface for uploading firmware images to the RCX and for pbFORTH scripts. I ALMOST have the comment (...) (25 years ago, 27-Jul-99, to lugnet.robotics.rcx.pbforth)
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| | RE: TIMER 0 is flakey
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(...) Looks like I'd better test this again, and maybe release 1.06... Sorry. Cheers, Ralph Hempel - P.Eng ---...--- The train stops at the train station, The bus stops at the bus station, So why am I sitting at a work station? ---...--- Reply to: (...) (25 years ago, 27-Jul-99, to lugnet.robotics.rcx.pbforth)
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| | TIMER 0 is flakey
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Hi Ralph, It looks like TIMER 0 is hosed in v1.05. Take a gander at this: ----- : time RCX_INIT 0 0 TIMER_SET 32 0 DO 0 TIMER_GET . LOOP ; ok time 0 0 0 0 0 0 0 0 0 0 0 0 1 1 -32639 -32639 130 130 -32638 131 131 131 -32637 132 132 132 133 -32635 (...) (25 years ago, 27-Jul-99, to lugnet.robotics.rcx.pbforth)
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| | Do the high resolution timers work?
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Hi Ralph, Are timer_SET and timer_GET working? I can't seem to get any non-zero values from them: RCX_INIT ok 0 FFFF timer_SET ok 0 timer_GET . 0 ok Am I missing something? Thanks, Jonathan (25 years ago, 27-Jul-99, to lugnet.robotics.rcx.pbforth)
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| | RE: Couple of questions about the Mindstorms software
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<Silly fly thread snipped...it WAS funny though> (...) Well, pbFORTH DOES have the ability to emit arbitrary bytes by the use of the EMIT word. And it has the ability to receive arbitrary bytes since that's how the terminal program talks to it. It's (...) (25 years ago, 20-Jul-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | Re: Couple of questions about the Mindstorms software
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(...) LOL! BTW, speaking of viruses (in the good sense) and on-the-fly bytecode compiling, do any of the RCX packages currently support the spontaneous exchange of high-level code between two or more RCX bricks? It seems like it would almost be a (...) (25 years ago, 19-Jul-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | [ANN] pbFORTH 1.0.5 for RCX
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Finally, I have got pbFORTH to where I can release it again. It now has: - A simple cooperative tasker - A marker word so you can erase things easily - Support for poweroff - High res (10msec) count down and stop timers - Various and sundry fixes (...) (25 years ago, 21-Jun-99, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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