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 Robotics / RCX / pbFORTH / *318 (-10)
  Re: Standard extension suggestions
 
(...) >Let me describe how I program on the RCX and it (...) Actually, it's this first bit that I find intimidating...the forth part sounds fun. Jeff jeffrey.hazen@northmill.net (24 years ago, 8-May-00, to lugnet.robotics.rcx.pbforth)
 
  Re: Standard extension suggestions
 
(...) It is hard for me to tell. It is not hard for me but I am a programmer with many years under his belt. However forth seems idealy suited for someone getting started. It is a very interactive environment which encourages experimentation. Let me (...) (24 years ago, 8-May-00, to lugnet.robotics.rcx.pbforth)
 
  RE: Standard extension suggestions
 
I think this would be a good idea, even if they never incorporated into the "official" kernel. Sort of a code repository similar to what has been proposed for NQC. That said, the thing that intimidates me is my lack of any experience with the (...) (24 years ago, 8-May-00, to lugnet.robotics.rcx.pbforth)
 
  Standard extension suggestions
 
I suggest that we collectively create a standard extension package that makes life a little simpler for beginners or maybe for developers in general. I have already started what I would use but it occured to me that this might be of general value. (...) (24 years ago, 8-May-00, to lugnet.robotics.rcx.pbforth)
 
  POWER_OFF serial port interaction
 
The following word has unexpected behavior: : off ." off" CR CR POWER_OFF ." on" CR ; I see the output when it turns off. when I turn it on I see nothing on the serial port. It finally appears when I type anything at the terminal. The character I (...) (24 years ago, 6-May-00, to lugnet.robotics.rcx.pbforth)
 
  Re: How much RAM is left?
 
(...) Pfff. As if that could possibly be important. If it isn't an object-oriented client-server architecture in Java++, it can't be serious :-) (...) If I read the source correctly, memory is allocated sequentially, and in my image I've got SOURCE (...) (24 years ago, 5-May-00, to lugnet.robotics.rcx.pbforth)
 
  RE: How much RAM is left?
 
(...) Nope, the memory is allocated linearly from the end of the image. The current image size is 12 or 13K. New dictionary entries and ALLOTed memory are interspersed as they occur. NOTE WELL that there is a subtle bug in the RCX ROM routines when (...) (24 years ago, 5-May-00, to lugnet.robotics.rcx.pbforth)
 
  How much RAM is left?
 
(...) I believe that. 32k of RAM is a luxury for forth. That's another thing people don't generally understand about forth, they way it effectively compresses runtime software. I've heard of ram reductions of a factor of 5-10 for forth when compared (...) (24 years ago, 5-May-00, to lugnet.robotics.rcx.pbforth)
 
  RE: Which terminal on Linux? plus random thoughts.
 
(...) Umm, I mean cover the tower and the RCX with a box.... :-) (...) No, Ernst's idea has a preamble byte for the transfer, and then the RCX grabs all of the chars and sums them. If the sum is wrong, then it NAKs the packet and the host sends it (...) (24 years ago, 4-May-00, to lugnet.robotics.rcx.pbforth)
 
  Re: Which terminal on Linux? plus random thoughts.
 
(...) I missed that. What do you mean by simply covered. (...) No surprise there. I implemented XMODEM a long time ago on a spectrometer. I don't remember the details but obviously it stayed with me. Besides all protocols tend to look the same at (...) (24 years ago, 4-May-00, to lugnet.robotics.rcx.pbforth)


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