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 Robotics / RCX / legOS / 1904
1903  |  1905
Subject: 
Re: problem with floating point numbers (legOS 0.2.5)
Newsgroups: 
lugnet.robotics.rcx.legos
Date: 
Tue, 29 May 2001 13:29:53 GMT
Reply-To: 
bancon@sm.u-bordeaux2.^ihatespam^fr
Viewed: 
1362 times
  
Kekoa Proudfoot wrote:

Laurent Bancon <bancon@sm.u-bordeaux2.fr> wrote:
Here are two programs I've compiled and downloaded into my RCX. The first
one works fine whereas the second doesn't (no music). Since the only
difference between them is the type of the variable "number", I'm
worrying about the ability of the system RCX/LegOS to handle floating
point numbers.

You are the second person to report something like this, so there must be
something wrong somewhere.  I will take a closer look at this when I get a
chance.  I am busy until Tuesday though.  I know I will forget, so keep
e-mailing me until I fix it (starting Tuesday)!

-Kekoa
kekoa@graphics.stanford.edu


Actually, the problem seems to come with gcc 2.96 (recent installation of
Red Hat 7.1). My program runs without any problem on an other PC with gcc
2.95. I have forced the system to use egcs, re-built everything, and now it
works fine.



Message has 3 Replies:
  gcc [was Re: problem with floating point numbers (legOS 0.2.5)]
 
Has anyone tried to use gcc 3.0 (one of the pres) with legOS? Just curious... Luis (...) (23 years ago, 29-May-01, to lugnet.robotics.rcx.legos)
  Re: problem with floating point numbers (legOS 0.2.5)
 
(...) Okay, good to hear the problem has been resolved. Hopefully the person who ran into this problem before you also found something that worked in the end. -Kekoa (23 years ago, 31-May-01, to lugnet.robotics.rcx.legos)
  Re: problem with floating point numbers (legOS 0.2.5)
 
(...) Yes, the gcc version (2.96) which comes with RH 7.1 doesn't compile the things older versions used to do it. For example try to recompile kernel 2.2.5 and you'll see a strange error con checksum.S. As far as I know 2.96 is not a stable (...) (23 years ago, 19-Jun-01, to lugnet.robotics.rcx.legos)

Message is in Reply To:
  Re: problem with floating point numbers (legOS 0.2.5)
 
(...) You are the second person to report something like this, so there must be something wrong somewhere. I will take a closer look at this when I get a chance. I am busy until Tuesday though. I know I will forget, so keep e-mailing me until I fix (...) (23 years ago, 26-May-01, to lugnet.robotics.rcx.legos)

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