 | | RE: h8/300 16-bit multiply
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(...) <snipped code...> Are you sure that it works for signed numbers :-) (...) If you like, I can give you some notes on how my Forth was developed. I'm using a simple pseudo-assembler that lets me port this Forth to a new processor in less than a (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx)
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| | Re: h8/300 16-bit multiply
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Thanks. I have a version just 2 words longer that doesn't use the ROM code. Basically it's the ROM's code, trimmed down after assuming high words are zero initially. It's completely untested though, so there may be a bug. CODE UM* \ 16x16=32 (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx)
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| | RE: rotation sensors
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(...) Yes, you need to read the rotation sensor continuously. Be careful to not read it TOO quickly, especially if the sensor is turning slowly or you get the jumpy count problem. There is a fix for it and I might add it too the rotation sensor code (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | RE: problems with communications
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(...) Keep digging. Try using a PC first and get that working. (...) Yep. (...) Sounds like pbForth is picking up steam again. Good. It's emails like this that keep me motivated to keep development going. I'm just back from a vacation, so I'll do (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | RE: h8/300 16-bit multiply
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(...) The easiest thing is to cast your 16 bit values to 32 bits and use the built-in 32x32 multiply... Here's the code from pbForth that does it. (It's written in a pseudo- assebler, but you can probably figure it out...) #---...--- # UM* UM* ( u1 (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx)
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| | RE: Support for pbForth in BricxCC
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(...) John, This is great news! My own Tcl based GUI is a bit lacking, and a grand unified firmware uploader sounds like a great idea. I've been away on holidays and conferences most of the month, so I've missed most of this thread. Quick question, (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Support for pbForth in BricxCC
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(...) I wrote a hack to dump all the words, and here's the result for version 2.0.0. The word list has changed since 1999. I think the list is complete, but no guarantees. ?DUP 2SWAP 2OVER 2DROP 2DUP RSHIFT DLShift LSHIFT MOD / * */ SM/REM /MOD (...) (23 years ago, 4-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Support for pbForth in BricxCC
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(...) My plan is to simply have the editor syntax highlight the built-in words in various (configurable) ways. Comments, for instance, () and \ would be highlighter in a certain way. Numbers in another. Standard Forth words that are not simple (...) (23 years ago, 3-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Re: Support for pbForth in BricxCC
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(...) I'm also playing with interfaces to pbforth at the moment. What you're doing and I'm not is syntax highlighting. I'm not actually sure how well that works in pbforth, since I'm not sure how the editor knows which words have been defined (...) (23 years ago, 3-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | rotation sensors
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Do I have to manually frequently read the values from rotation sensors for the count to work, or does the firmware monitor the sensor for me? I have home-brew passive sensors, touch sensors and light sensors working fine, but the rotation sensor is (...) (23 years ago, 3-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | Support for pbForth in BricxCC
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I've started a project recently related to pbForth. And I'm interested in some community feedback. Last night I wrote a preliminary pbForth syntax highlighter for the editor component I use in BricxCC. And I modified BricxCC slightly so that you can (...) (23 years ago, 3-Mar-02, to lugnet.robotics.rcx.pbforth)
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| | new EmuLegOS release 1.2.5.0
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I just posted a new release of EmuLegOS, if you're interested you can grab it from (URL) of the changes were just adding support for additional sensor types. Here is the changelog. 1.2.5.0 03/02/02 Mark Falco - added include for semaphore.h so user (...) (23 years ago, 2-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: pbrick.dll
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(...) spirit.ocx (...) as for the spirit.ocx? (...) comes in the (...) Hi, I don't know about pbrick.dll, but Lego finally made the RIS2 SDK available. Besides a linkable API dll ("Ghost") it also contains a COM server with functionality similar to (...) (23 years ago, 1-Mar-02, to lugnet.robotics.rcx)
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| | Re: reliability of quad speed LNP
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(...) Probably depends on the make-up of the data you're transferring. ROSCO (23 years ago, 28-Feb-02, to lugnet.robotics.rcx.legos)
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| | Re: reliability of quad speed LNP
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So with inverting every other message byte were you able to work at 4x? Were you then also able to work at close range at 4x? It would seem easy to patch LNP to automatically do this inversion. I'll have to give this a try. thanks, mark (23 years ago, 28-Feb-02, to lugnet.robotics.rcx.legos)
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| | Re: RFC: Creation of Version 0.2.6
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(...) We asked our lawyers about this many months ago, when the whole issue first came up. It's okay with them if the name "legOS" is used in a "formerly known as" context. Just like what you describe, basically - to make sure people understand that (...) (23 years ago, 27-Feb-02, to lugnet.robotics.rcx.legos)
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| | h8/300 16-bit multiply
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I'm trying to implement a 16bit multiply that leaves a 32bit result on the H8/300. The RCX ROM includes 16x16=16 and 32x32=32 multiplication routines, but not the intermediate step. Any hints or pointers? (it should be straightforward, but my eyes (...) (23 years ago, 27-Feb-02, to lugnet.robotics.rcx)
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| | pbrick.dll
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Hi everyone, I found this replacement controller of the spirit.ocx Does anyone know if there is any documentation for pbrick.dll?Or is it the same as for the spirit.ocx? Another question:Does the pbrick.dll support the USB tower that comes in the (...) (23 years ago, 27-Feb-02, to lugnet.robotics.rcx)
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| | Re: Power to RCX
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Hi every one, Thanks for all your help on my previous inquiery. My other idea is, to power my newly acquired Scout with a Solar panel. The Solar panel (car battery saver) is 12V at ~70mA; which I intend to connect a Voltage converter (ready made (...) (23 years ago, 27-Feb-02, to lugnet.robotics.rcx)
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| | Re: reliability of quad speed LNP
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"Mark Falco" <falcom@onebox.com> wrote in message news:Gs44C0.MGL@lugnet.com... (...) <<snip>> I'm not familiar with LNP but I have also experienced similar messaging problems. I have an old RCX 1.0 (S/N 22751) with serial tower and a newer RCX 2.0 (...) (23 years ago, 27-Feb-02, to lugnet.robotics.rcx.legos)
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