Hello everybody,
When I tried to compile my tinyos code where there is some machine code. I have
the following error :
BintM.nc:394: error: can't find a register in class 'BASE_POINTER_REGS' while
reloading 'asm'
Where the problem come from the fact there is some asm volatile
asm volatile (
" push r2 \n"
" push r3 \n"
" push r26 \n"
" push r27 \n"
" push r30 \n"
" push r31 \n"
"1: \n"
" ld r2, Z+ \n"
" ld r3, X \n"
" lsr %0 \n"
" sbc r3, r2 \n"
" rol %0 \n"
" st X+, r3 \n"
" dec %1 \n"
" brne 1b \n"
" pop r31 \n"
" pop r30 \n"
" pop r27 \n"
" pop r26 \n"
" pop r3 \n"
" pop r2 \n"
:"+r"(borrow), "+r"(nwords)
:"z"(a), "x"(b)
:"r2", "r3"
);
I search the web for the bug and I found it
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31786
This bug has been solve since the version 4.4 of avr-gcc
The problem is I have the version 4.1.2
/usr/lib/gcc/avr/4.1.2
And I am using ubuntu and I install the debian package for tinyos.
How can I update the gcc avr to the version 4.4 ?
Thanks a lot :)
Best
Loic
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