qi-hardware/ben-blinkenlights
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Author SHA1 Message Date
Werner Almesberger
bac21bf8cb ubb-la/Makefile (CFLAGS): even -O1 isn't safe; use -O0 instead 
While -O1 gets rid of the unexpected read in the simple code of a synthetic
test, it's still there in the more complex environment we have in ubb-la.c
Turning off optimization completely seems to do the trick.
 2013-01-24 17:35:52 -03:00
Werner Almesberger
e1eea4fa86 ubb-la/Makefile (CFLAGS): -O9 is currently unsafe; use -O1 
Higher optimizations can cause the generation of code that unexpectedly
does the equivalent of  PDFUNS = PDFUNS;

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56098
 2013-01-24 15:31:59 -03:00
Werner Almesberger
2c5b3625a7 ubb-la/: data capture via UBB and MSC+DMA (WIP) 2013-01-23 11:54:23 -03:00