 | | Re: RCX as a PGP engine
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(...) It really isn't that limited when you consider other platforms that run full PK systems, such as the Dallas Semiconductor iButton. It has a much more limited processors, more limited RAM, and you write your code in Java so it has to be (...) (23 years ago, 9-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: RCX as a PGP engine
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(...) Excellent point, Benton Jackson e-mailed me with the following: (...) Good idea using a external sensor to seed some sort of random number generator function. However, the codebase for PGP is pretty darned large and after looking at the source (...) (23 years ago, 9-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: RCX as a PGP engine
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(...) The key word is a "good" generator. Random() is way too predictable to use in a crypto application. (23 years ago, 9-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: exponents, e^
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(...) Remote control and lejos: You can download a Java object to accept commands from the remote. Check out (URL) lejos. Roger (23 years ago, 9-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: Makefile command to make *.map files
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I had a similar problem with the "sort" program apparently not functioning and then someone kindly looked at my error output and pointed out that I should make sure that the CYGWIN bin path was added to the FRONT of my path as declared in my (...) (23 years ago, 9-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: RCX as a PGP engine
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(...) Even if it needed FP, legOS supports that. (...) Well, maybe. Maybe not. legOS has a random() function, right? Once the TCP/IP patch is stable, why not use an RCX as an echo server with built in en/decryption? You could just telnet to it, type (...) (23 years ago, 9-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: Attention cygwin and windows users
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Quoting Ed Manlove (emanlove@ieee.org): (...) If we actually get to the point of doing another release (and thus finding a maintainer for the project, etc) maybe this is something we should consider integrating? Anyone else building on Cygwin and (...) (23 years ago, 8-Mar-02, to lugnet.robotics.rcx.legos)
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| | Attention cygwin and windows users
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For those using the cygwin tools under a windows OS as described in the article "LegOS 0.2.4 - Instructions for installing on NT/Win9x with Cygwin" you could be experiencing a conflict with dos and cygwin tools. In particular is you are following (...) (23 years ago, 8-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: Compile error when make demos
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Zhengrong, I know this is an old post but what was your setup for this build (OS,cygwin?, etc)? Ed (...) (23 years ago, 8-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: Makefile command to make *.map files
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For clarity I am running under Win98 using CYGWIN tools as outlined by the instructions "LegOS0.2.4 - Instructions for installing on NT/Win9x with Cygwin". I was looking for help on the sort command using $sort --help but I was getting a similar (...) (23 years ago, 8-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: Makefile command to make *.map files
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Quoting Ed Manlove (emanlove@ieee.org): (...) I can't speak for absolute certain about this, not being familiar with that part of the code, but sort -u is used to unique a list of strings. That is, if you pipe a file: spam spam spam eggs through (...) (23 years ago, 8-Mar-02, to lugnet.robotics.rcx.legos)
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| | Makefile command to make *.map files
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What is the sort command doing in the command to create *.map files within the Makefile.kernal? # how to make map files %.map: %.coff $(NM) $*.coff | sort -u > $*.map Doing my build I get the following error and the resulting map file has size zero. (...) (23 years ago, 8-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: binutils?
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(...) It has several useful things in it, but the one most important for legOS is probably the linker, ld. ROSCO (23 years ago, 7-Mar-02, to lugnet.robotics.rcx.legos)
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| | binutils?
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when i first got legOS up and running i used rcx-egcs-1.1.2-1.i386 rcx-egcs-c++-1.1.2-1.i386 rcx-binutils-2.9.5.0.22-1.i386 i'm assuming the first two are the c and c++ compilers, however what is the function of the binutils? thanks (23 years ago, 7-Mar-02, to lugnet.robotics.rcx.legos)
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| | backing up programs
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Hi, I have a couple of RCX's and was wondering if anyone has done any work on a way to transfer a program from one rcx to another in the case of a battery failure, etc. instead of replacing the rcx in the robot with the other one. thanks (23 years ago, 7-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: exponents, e^
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i tried the lejos environment and found the exponent and trig functions worked very well. and they work with doubles. so if anyone is having trouble with using trig, log, exp functions in legOS, you might want to try lejos. plus it was easier to (...) (23 years ago, 7-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: exponents, e^
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(...) Only one I can think of off-hand is support for the remote control, I've been thinking about looking at that if I can get some time (though it's still only a patch in legOS, have to do something about that, too). There may be others I don't (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: exponents, e^
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you know i was looking at lejos, java for RCX, and it seems to have exponents, trig, etc. functions built in. any advantages legOS has over lejos i don't know about. if not, i think i may give it a whirl.... -dave (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.legos)
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| | Re: exponents, e^
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Dave I am working on a number of maths functions that includes loge log10 expe and exp10 x^y as well as trig functions. As you note it requires the specification of the mantassa and exponent desciption of the float variable for the RCX. Usually this (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.legos)
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| | exponents, e^
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hello, i've searched through the discussions but i haven't been able to find any info on using floats with exponents in legOS, specifically the inverse of natural log: e^. actually, i can't find any info about integers with exponents either. i am (...) (23 years ago, 6-Mar-02, to lugnet.robotics.rcx.legos)
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