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 Robotics / RCX / pbFORTH / *102 (-20)
  RE: Whither 0> ?
 
(...) Yes, it's not in the hFORTH (ANSI) standard. You can always do SWAP 0< instead. The new release I'm working on does define 0> .... As a workaround, you can define 0> as above, and then remove the alias later. Cheers, Ralph Hempel - P.Eng (...) (25 years ago, 3-Jun-99, to lugnet.robotics.rcx.pbforth)
 
  Whither 0> ?
 
Hi Ralph, I'm able to use <, =, >, 0<, and 0=, but 0> is not defined. Any idea why? Thanks, Jonathan (25 years ago, 3-Jun-99, to lugnet.robotics.rcx.pbforth)
 
  RE: Java 2 pbFORTH console, version 0.2 source release
 
(...) Wow! I haven't looked at this, and probably won't until I get more Java experience, but thanks for the effort. Just to keep everyone up to date on pbFORTH, I have (as usual) got too much other stuff on my plate right now. I am going to have (...) (25 years ago, 3-Jun-99, to lugnet.robotics.rcx.pbforth)
 
  Java 2 pbFORTH console, version 0.2 source release
 
Hello, This is not for the faint of heart. I wrote a Java 2-based pbFORTH console that strips out repeated characters when talking with the RCX (most of the time). It still chokes when the IR tower awakens, but you can get some pretty clean-looking (...) (25 years ago, 3-Jun-99, to lugnet.robotics.rcx.pbforth)
 
  Re: Assembly tool?
 
(...) I'm afraid I was going to use Delphi (25 years ago, 19-May-99, to lugnet.robotics.rcx.pbforth)
 
  RE: Assembly tool?
 
(...) John, Are you thinking of doing this in TclTk as discussed before? If so, why don't we collaborate a bit...I've done a serial handler in TclTk for a proprietary RS485 network at 9600 baud. At 2400 baud, I'm sure I could do the same. Your (...) (25 years ago, 19-May-99, to lugnet.robotics.rcx.pbforth)
 
  Re: Assembly tool?
 
Ah, in that case you will need my pbFORTH IDE and downloader, which is not on the drawing board yet, but just a wishlist: o filter out ddoouubbllee letters, use echo to check o fast download, skipping comments and compressing whitespace, macro (...) (25 years ago, 19-May-99, to lugnet.robotics.rcx.pbforth)
 
  Re: Assembly tool?
 
I have Windows NT, but I'm running the CygWin stuff for legOS. Jonathan (...) (25 years ago, 19-May-99, to lugnet.robotics.rcx.pbforth)
 
  RE: Assembly tool?
 
(...) Its not pbFORTH, its the RCX tower. Thats how I can tell if pbFORTH crashed, the HyperTerminal screen looks NORMAL!!!! It is a bit annoying though. I started work on a Tcl uploader when I decided a better tutorial was more important. More (...) (25 years ago, 18-May-99, to lugnet.robotics.rcx.pbforth)
 
  Re: Assembly tool?
 
What operating system are you running on? (25 years ago, 18-May-99, to lugnet.robotics.rcx.pbforth)
 
  Re: Assembly tool?
 
Hi Ralph, (...) I wanted to see if I could stop pbFORTH from echoing characters back to the PC. I figured it wouldn't be hard to do, and it would make my HyperTerminal sessions look a lot cleaner. So what do you use? I couldn't get (...) (25 years ago, 18-May-99, to lugnet.robotics.rcx.pbforth)
 
  RE: Assembly tool?
 
(...) Jonathan, you use the GNU toolchain to assemble the files, but why bother? The pbforth.srec file is available for download and it is complete by itself. Just use "nqc -firmware pbforth.srec " to get it into the RCX. I have a newer release with (...) (25 years ago, 18-May-99, to lugnet.robotics.rcx.pbforth)
 
  Assembly tool?
 
Hello, I was wondering what tool I need to compile the pbFORTH asm files. I have the tools that are used for legOS--is there something there that can assemble the asm files? Thanks, Jonathan (25 years ago, 18-May-99, to lugnet.robotics.rcx.pbforth)
 
  Re: Multitasker test script
 
Perhaps I should not have stripped all the comments for speed :) \ The rationale for the delay above and the delay after the IR flash is \ that the message is 77 bits of 417 microseconds each, a total \ transmission time of 32 milliseconds, the (...) (25 years ago, 13-May-99, to lugnet.robotics.rcx.pbforth)
 
  Re: Multitasker test script
 
(...) It was this line that trashed the task chain when the power button was pressed, I thought I'd checked it a few times but perhaps it was something else. (...) Yes. What I really want is an equivalent of SendMessage in NQC (which maps to opcode (...) (25 years ago, 13-May-99, to lugnet.robotics.rcx.pbforth)
 
  RE: Multitasker test script
 
John, I've been looking at your ping routine and note the following... Even if FF EMIT did not block, the wait makes things irrelevant. At 2400 baud, the FF is out the port within 4 msec. In fact, if EMIT did not block, you could probably wait jsut (...) (25 years ago, 13-May-99, to lugnet.robotics.rcx.pbforth)
 
  FORTH documentation on line
 
No, it's not documentation for pbFORTH - yet. I have found a decent book on line, it is Tim Hendtlass's Real-Time FORTH book. It is really geared for FPC, a dialect that is available for the PC, but the sections on numbers, stack manipulation, (...) (25 years ago, 13-May-99, to lugnet.robotics.rcx.pbforth)
 
  RE: Multitasker test script
 
John, I tried to put this part of the code into my test script without the ping word and it worked fine. Yes, I uncommented the line that does not work for you. I'm going to have a closer look at ping...I wonder if it's running out of stack or doing (...) (25 years ago, 13-May-99, to lugnet.robotics.rcx.pbforth)
 
  Re: Multitasker test script
 
Here it is, it is working, but is waiting for IR_MODE_HI, STOP and a non-blocking EMIT. There is a light sensor on the centre connector pad. .dp displays proximity in the LCD as DEFCON.RawLight alternating with the average ambient raw light sensor (...) (25 years ago, 12-May-99, to lugnet.robotics.rcx.pbforth)
 
  RE: Multitasker test script
 
(...) Post away! Two heads (too bad there only seem to be two of us :-( are usually better than one! Cheers, Ralph Hempel - P.Eng ---...--- Check out pbFORTH for LEGO Mindstorms at: (URL) ---...--- Reply to: rhempel at bmts dot com ---...--- (25 years ago, 12-May-99, to lugnet.robotics.rcx.pbforth)


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