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On 24.03.2011 18:10, Eigil Krogh Sørensen wrote: > As far as I can find out there is no support for Cortex processors above M3 (M4, R4(F), A8..). The eCos arm-eabi-gcc for cygwin is v. 4.3 and support for the M4, R4(F) and A8 is introduces in gcc-4.4. Cortex M4 support is officially introduced in gcc 4.6 - released yesterday :-) http://gcc.gnu.org/gcc-4.6/changes.html so I would like to see it as new gcc for eCos. Btw, a new gcc release would be a benefit for Cortex M3 to due to ldrd fix. Regards Ilija -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss