 | | useful battery program
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Here's a short program to display the battery voltage. The get_battery_mv() interface might be useful in the kernel itself. Would it be appropriate for the kernel to turn on the low battery indicator as well? The A/D converter that the RCX uses to (...) (25 years ago, 12-Jan-00, to lugnet.robotics.rcx.legos)
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| | RE: RCX "locking up" when trying to use dll
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(...) Great story! When doing tedious diff compares, I usually find it in the last pair of files :-) 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 (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: RCX "locking up" when trying to use dll
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(...) I built the H8/300 binutils-2.9.1 and gcc-2.95.2 and compiled the legOS kernel and it was locking up when downloading programs. People here said get egcs-1.1.2 -- it works! So I built egcs-1.1.2 and cd'd to legOS/boot, make clean/make and the (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: RCX "locking up" when trying to use dll
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(...) Actually I won't, since I just read memcpy.c and I see it's an __asm__ macro. I don't know if that's a valid __asm__ or not. In this case, if it's causing legOS pain, memcpy.c should just be replaced by memcpy.s with the correct assembly (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.legos)
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| | RE: RCX "locking up" when trying to use dll
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(...) <Snipped disassembly showing exactly what the bug is...> WOW! Good catch Ben! I have recently been looking through some disassembly on a totally unrelated topic and have found a bug in an unnamed commercial compiler. But of course I had a (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: RCX "locking up" when trying to use dll
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(...) It's actually in the library. I just found it. Here is a disassembly of a correct memcpy.o, as built by egcs-1.1.2: 00000000 <_memcpy>: 0: 0d 13 mov.w r1,r3 2: 09 23 add.w r2,r3 4: 1d 13 cmp.w r1,r3 6: 47 00 beq .0 (8) 8: 6c 1a mov.b @r1+,r2l (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.legos)
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| | RE: pbFORTH needs better uploading, docs
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(...) I realized this later, and felt it would be even more confusing to clear it up! Mea Culpa again! (...) Great. I've been struggling with getting info for the FAQ together that makes it easy for all platforms to use pbForth. The goofy line-end (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.pbforth)
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| | Re: RcxCC and tabs
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"Mark Rendle" <rendle2000@hotmail.com> wrote in message news:Fo5y6u.MuF@lugnet.com... (...) to (...) the (...) others (...) for the (...) with (...) I can do that in vi (and that is what I did last time I played with my RCX about a year ago), but (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.nqc)
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| | Re: pbFORTH needs better uploading, docs
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In response to a message by Ben Jackson, Ralph Hempel wrote: <snip> (...) Actually Ralph, I think that was me. :) Although there are a few things *I've* said about pbforth that I don't like, you've given your reasons for the choices you've made to a (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.pbforth)
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| | Re: RCX "locking up" when trying to use dll
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Ben Jackson schrieb: (...) Some parts of legOS, especially the interrupt handlers, are less portable than they should be - they use some assembly, or my attribute((rcx_interrupt)) which I haven't verified with 2.95.2. (...) Sounds like a problem (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: legOS is really neat!
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Ben Jackson schrieb: (...) I'm still looking for someone to write an R2D2 sound scheme ;-) Markus. (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: OO programing in RCX
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Hi Eric, Yes, I believe you could create a sensor object on the VB side and write your code thinking in terms of a sensor object. Here's one way: =-=-=-= BEGIN SAMPLE CODE =-=-=-= Private m_SensorNumber As Integer Private m_SensorType As Integer (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx)
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| | Re: How advanced can RCX programming be?
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(...) but (...) More than that. You can (for instance) have a 'command' thread, which looks at a variable, and decides according to the values on this whether to turn left/right or issue some other response, and does this by changeing other values. (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx, lugnet.robotics)
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| | Re: How advanced can RCX programming be?
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"TM" == Tobias Möller <tobias.moller@telia.com> writes: TM> If I´ve understood this multi-tasking right, then it means that TM> you can have one program running for the motors of a robot, and TM> another for the sensors, but at the same time. It (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx, lugnet.robotics)
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| | Re: How advanced can RCX programming be?
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(...) That wasn't me! David Leeper (has been a computer programmer for 17 years! :^)) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx, lugnet.robotics)
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| | Re: OO programing in RCX
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Hi Dave, On the RCX side, I wouldn't want true objects. I wouldn't want to fill up the RCX variables with vtables and the program memory with the code to use the vtables. But on the PC side of things I'm beginning to think objects can be very (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx)
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| | Re: How advanced can RCX programming be?
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In lugnet.robotics.rcx, David Leeper writes: I´m no computer programmer, but I´ve downloaded NQC but haven´t installed it yet. If I´ve understood this multi-tasking right, then it means that you can have one program running for the motors of a (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx, lugnet.robotics)
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| | Re: RCX "locking up" when trying to use dll
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(...) 1.1.2 (...) Ok, I got egcs-1.1.2 (plus patch) and rebuilt legOS.srec. Now it works. I did confirm that the compiler is tripping over something in the libs rather than the kernel (at first I only rebuilt the kernel sources and the problem was (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.legos)
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| | Re: RcxCC and tabs
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alex wetmore <alex@phred.org> wrote in message news:947527538.49673...red.org... (...) Surely if you're a vi-head you could use vi, and set up keyboard macros for the compile and download calls to NQC? Personally I always used to set vi up with the (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.nqc)
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| | Re: RCX "locking up" when trying to use dll
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(...) unfortunately not. AFAIK, nobody has ever managed to compile a dll-capable legOS with gcc-2.95.x, neither with the rcx-compiler patch nor without. (...) Sure, this is exactly the gcc-2.95.2 symptom many people already experienced. There has (...) (25 years ago, 11-Jan-00, to lugnet.robotics.rcx.legos)
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