On Friday 25 January 2008 22:35, Wouter van Gulik wrote: > __clzqi2: > clr r_count ; load with 0 > com r_count ; invert (load with -1) + set carry > __clzqi2_loop: > rol r_arg1L ; Rotate through carry > inc r_count ; Carry not touch by inc > brcc __clzqi2_loop ; Branch on no carry
That is splendid! After a superficial view: . A short rcall/rjmp is not safe with unknown (big) library for intermodule link. Also a conditional branch. . Are this function intended for math functions? If so, the strong size optimization is not a best solution (IMHO). An addition of few words may speed up in few times for some 32/16-bit functions. Regards, Dmitry. _______________________________________________ AVR-GCC-list mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/avr-gcc-list
