> -----Original Message----- > From: avr-gcc-list-bounces+eric.weddington=atmel....@nongnu.org > [mailto:avr-gcc-list-bounces+eric.weddington=atmel....@nongnu.org] On > Behalf Of David Brown > Sent: Friday, January 13, 2012 10:48 AM > To: avr-gcc-list@nongnu.org > Subject: Re: [avr-gcc-list] AVR Libc int32_t and uint32_t > typedefsareincorrect >
> > Here is an idea to try out - instead of using "unsigned char" and > "signed char" as your basis for 8-bit data, try using C++ classes around > them with arithmetic operators defined. In many cases, you can get more > efficient code since there are no promotions for C++ classes. > > It was a while back that I tried this, and although some code was > smaller and faster than using normal uint8_t, other code was much worse. > But it would be fun to try again. Interesting approach! It might be nice to work up a kind of "test suite" with those C++ classes to be able to compare the codegen of many kinds of operations with the C compiler output. _______________________________________________ AVR-GCC-list mailing list AVR-GCC-list@nongnu.org https://lists.nongnu.org/mailman/listinfo/avr-gcc-list
