Subject:
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Re: Notes on WinNT and legOS 0.2.2
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Thu, 18 Nov 1999 18:46:12 GMT
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Viewed:
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1504 times
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On Thu, 18 Nov 1999, Jonathan Knudsen wrote:
> Luis Villa wrote:
> > I thought the perl aspect was gone? As far as I can see, it is only the
> > old-style firmware disassembly that needs it, and that should be easy to
> > comment out. Am I correct, Markus?
>
> I think that making .lx files doesn't involve Perl, even though
> building legOS.srec and the util stuff still uses Perl. This implies
> that you could distribute a precompiled legOS.srec and a smaller
> set of tools, sans Perl, for people to build .lx files.
In fact, as currently configured, building user-land programs also
requires one of the perl programs in util, so we can't quite get rid of
it yet. Here is my perl analysis-
As far as I can tell (via extensive grepping and make-file reading), of
the five perl scripts in the 0.2.2 package (all in /util):
-multireplace and merge-map are no longer used, or at least not unless
you want to do disassembly (unlikely.)
-genlds is still used, and while not directly part of .lx creation, still
plays a neccesary role in the creation of .ds1 and ds2 files, which (as
far as I can tell) is still important. This directly contradicts Markus's
claim that making .lx files is now perl free, so either a) I'm wrong
(quite likely) or b) Markus forgot about the lower-level use of perl in
the process. (given the complexity of the make process, this is also likely.)
-sample-convert is optional.
-fixdeps is still used. I'm finally seeing what it is used for- and it
seems like a sort of.... well, it is not an ugly hack, but it's not
wonderful either.
Wow. Actually, after having (literally) spent an hour tracking through
the makefiles
1) I've learned a lot
2) I have even more respect for Markus and
3) there is a lot more messy stuff in the Makefile system than even I
suspected.
Things that I think can be ripped out (Markus, please correct me if I'm
wrong- otherwise I'll be cleaning them up on my own...)
everything related to .dis2 files. As a direct result, the dmap and dcoff
files are also unecessary. Nothing big here- just cleaning stuff up.
I also think I can replace fixdeps with a similar C program, but Markus is
right- it is much nicer in perl than it would be in C The preferable
situation (I think) would be to process the depends in such a way as to
avoid the problem fixdeps fixes. I'm not sure that is possible, but I'll
look into it.
Unfortunately, genlds looks like the kicker- no way around using that, at
least not within my scope of understanding, which means we are stuck with
perl to compile _everything_. Markus?
> > dll should work with the old compiler- I have not yet compiled the new
> > compiler (the weird 2.95.2 problems I spoke of earlier) but I can get dll
> > to work just fine. Is there an error message?
>
> I thought lnp might not run in the legOS firmware because the
> new compiler doesn't include the RCX interrupt patch. But I
> really don't understand this very well.
I can't claim to be much of an expert either- I had a pretty firm grasp of
what was going on in 0.1.7, but I'm still working on 0.2.2. From what I
can see (and as he has indicated to the list), Markus has made a valiant
effort to make lnp usable without the patch. I think the question then is
whether or not task downloading is dependent on LNP. I don't believe that
is the case- the sub-program(?) download is not 4 speed, as I understand
it, so it shouldn't depend on LNP. But, I can't be sure without more time
that I don't have right at the moment.
Good thread, so far-
-Luis
P.S. Markus, I cc'd you because I thought you might be ignoring a winNT
thread, and this has gotten to the point where you might be interested.
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Message is in Reply To:
 | | Re: Notes on WinNT and legOS 0.2.2
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| (...) I think that making .lx files doesn't involve Perl, even though building legOS.srec and the util stuff still uses Perl. This implies that you could distribute a precompiled legOS.srec and a smaller set of tools, sans Perl, for people to build (...) (25 years ago, 18-Nov-99, to lugnet.robotics.rcx.legos)
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