GCC does not produce FPU code - Beacon EmbeddedWorks

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Last Post 19 Dec 2005 01:09 PM by laslo

GCC does not produce FPU code

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laslo

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17 Nov 2005 12:19 PM
Hello. I've been trying to compile some fpu code but gcc does not want to cooperate. If i use the -m5407 option then it compiles in soft fpu emulation, if i try to use -mcfv4e (i think that this should be the right target for fpu) then i get an error message cc1: error: invalid option 'cfv4e' after some investigation it seems that m68k-elf-as does support -mcfv4e but cc1 does not. Any sugestions ? Thanks in advance.

laslo

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21 Nov 2005 10:45 AM
Does anybody have any sugestions ? Am i doing something wrong or does the GCC version packaged on the Zoom development kit CD not supposed to produce FPU instructions?

peter.barada@logicpd.com

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Posts:72

22 Nov 2005 11:09 AM
No, you are not doing anything wrong. The compiler supplied witht the development kit CD does not support the ColdFire v4e FPU instructions. I am currnetly working on creating Cygwin binaries of a compiler for m68k-elf that does support the ColdFire v4e FPU, using the gcc-3.4.3 source used to build the linux compiler. After testing, they will be posted to the website.

laslo

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22 Nov 2005 12:20 PM
Thank you that will be great, do you have an ETA on when it would be available? Thanks.

peter.barada@logicpd.com

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Posts:72

22 Nov 2005 12:23 PM
I don't have a specific date yet, since testing is just starting, but if all goes well, I hope "soon".

laslo

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12 Dec 2005 12:09 PM
Is there any progress with the new compier ? Thanks.

peter.barada@logicpd.com

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Posts:72

12 Dec 2005 12:15 PM
I've done some preliminary testing, but haven't really stress it out. If you'd care to do some alpha/beta testing on this version, I'll see if I can arrange it.

laslo

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19 Dec 2005 01:09 PM
Posted By peterb on 12 Dec 2005 0:15 PM I''ve done some preliminary testing, but haven''t really stress it out. If you''d care to do some alpha/beta testing on this version, I''ll see if I can arrange it. I've sent you an email last week, not sure if you got it. I would be interested in beta testing the new compiler.