Subject:
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Re: mindstorms NXT and memory
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 9 Jan 2006 23:51:03 GMT
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Original-From:
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steve <sjbaker1@airmail#spamcake#.net>
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Viewed:
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9481 times
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pisymbol wrote:
> So for example, is the NXT chip capable of SIMD? I suspect it is since the
> NXT FAQ talks about playing music.
You can play music quite easily without SIMD.
> What about Jazelle? I know someone asked about using Java with the
> NXT (a nice idea from the programmers standpoint). I know the J2ME KVM
> can be as small as 128K.
Well, you can run Java on an RCX...
http://lejos.sourceforge.net/
...so you certainly have the capacity to do so on the NXT.
> In fact, someone stated that historically ARM was "hard" to
> program for and I have to disagree.
I said that RISC machines (in general) are harder to program in
machine code. The ARM is as easy as any other processor to program
in high level languages.
> The first order of business for the NXT is to have some kind of sane cross or
> toolchain environment that people could download and use.
That's gonna happen VERY quickly if Lego let us get into the machine
at the machine code level as they did with the RCX. There is already
a complete OpenSourced tool chain for the ARM in the form of the GNU
gcc/g++ compilers and libraries.
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Message has 1 Reply:
 | | Re: mindstorms NXT and memory
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| (...) Do you mean machine code (binary) or assembly language? I first learned assembly language programming on a MIPS chip (RISC). I've also done it on a Motorola 68HC11 (a microcontroller), and I've written both pure machine code and assembly (...) (19 years ago, 10-Jan-06, to lugnet.robotics, FTX)
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Message is in Reply To:
| | Re: mindstorms NXT and memory
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| (...) Right but that's not what I'm really asking! :-)! I'm sure its a variation of an ARM7 chip which will implement the standard ARM ISA. However, with any ARM7 implementation it can be catered to a specific applications. From the ARM website: (...) (19 years ago, 9-Jan-06, to lugnet.robotics)
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