> -----Original Message----- > From: Georg-Johann Lay [mailto:a...@gjlay.de] > Sent: Monday, August 01, 2011 8:38 AM > To: gcc-patches@gcc.gnu.org > Cc: Anatoly Sokolov; Denis Chertykov; Weddington, Eric > Subject: [Patch,AVR]: Supply and use information on skip core bug > > Some AVR devices have the skip bug, i.e. they must not use any skip > instruction to bypass a 2-word instruction. > > Affected devices are AT90S8515 (core avr2) and ATmega103 (core avr31). > > For information see the new file errata.txt. > > This patch supplies new built-in macros so that a user can test if that > erratum might be active. Moreover, libgcc.S uses the new built-in macros > because they allow for more exact test for the bug. > > struct mcu_type_s has a new field "errata_bug" which is set to one for the > following devices: > > * avr2 and none (as avr2 is default if no -mmcu is given) > * avr31 > * at90s8515 > * atmega103 > > avr-tables.opt does not change and needs not to be regenerated. > > Ok to install?
Hi Johann, It all looks fine to me, except that I don't think we really need to have a separate errata.txt file, do we? The information in errata.txt could be condensed (we don't need the full email response back from Atmel, just the information that it is the 2 devices that have this errata) and put it in a comment in avr-devices.c or avr-mcus.def. Approved with that small change. Thanks for doing this. Eric Weddington
