Subject:
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Re: memcpy patch for gcc 2.95.2 wanted
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Sun, 26 Mar 2000 02:29:31 GMT
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Viewed:
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2365 times
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On Sun, 26 Mar 2000, Ben Jackson wrote:
> In lugnet.robotics.rcx.legos, Rossz Vámos-Wentworth writes:
> > In an attempt to track down my RCX lockup problems I've been rereading
> > the older messages and came across the discussion that sounded exactly
> > like my problem: the RCX locks up when dll is executed. The conclusion
> > was that bad code was generated for the memcpy function, but I didn't
> > see a solution posted.
>
> That was probably me. I don't know anything about GCC asm macros so I wasn't
> sure if it was a bug in memcpy or a bug in GCC's code generation. I solved
> the
> problem by going to egcs-1.1.2 which generates correct code. I was hoping
> that
> someone else would take it from there!
Sorry... I was going to recommend the same thing last night, but got
sidetracked (it has been a tough two days to be a Duke basketball fan.) I
have a question: from where in the code is the incorrect assembly
generated? i.e., could it be something that Markus is specifying
incorrectly or is it definitely a compiler problem? If it is definitely a
compiler problem, the egcs/gcc people should be told about it and a bug
filed (however they handle that.)
-Luis
#######################################################################
Profanity is the one language that all programmers understand.
-Anonymous
#######################################################################
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Message has 1 Reply:
 | | Re: memcpy patch for gcc 2.95.2 wanted
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| (...) I think the compiler was generating incorrect code. I'm no gcc expert, but the asm macros looked OK to me, and besides, why should the macro work in one compiler version & not the other? FYI, I fixed it by compiling the source to an assembler (...) (25 years ago, 26-Mar-00, to lugnet.robotics.rcx.legos)
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Message is in Reply To:
| | Re: memcpy patch for gcc 2.95.2 wanted
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| (...) That was probably me. I don't know anything about GCC asm macros so I wasn't sure if it was a bug in memcpy or a bug in GCC's code generation. I solved the problem by going to egcs-1.1.2 which generates correct code. I was hoping that someone (...) (25 years ago, 26-Mar-00, to lugnet.robotics.rcx.legos)
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