[Hawk552]

Originally Posted by danielkza The only thing we learned from all this is that AMXX's compiler sucks.

I thought that was self evident.

Also, I'm wrong for once. Very refreshing.

[Spunky]

In C++, use:

PHP Code:

while (true) 


instead of

PHP Code:

while (1) 


Because in C++, bool (1 byte) is smaller than int (4 bytes). Always take your types into account when making optimizations.

[Pro Patria Finland]

Originally Posted by Sean D experience? sure i guess... as danielkza was getting at, any modern compiler is going to know that the condition is always true so it will compile down to a jump. how much code it takes in the language doesn't determine how fast the machine code is; modern compilers are pretty smart. if you want proof then compile each and disassemble the executables in ida. by the way, if you're trying to optimize your code, you really should be using a profiler to pinpoint the bottleneck of your software so you don't have to waste time guessing. also don't listen to anything hawk says, he doesn't know what he's talking about

This answer suffices for me, I think. Stupid me, I didn't even check the hex codes my compilers give me. I'll check later today if I have time what the AVR GCC -compiler outputs. I guess it should be similar to the tables posted earlier. I should start writing in Assembly anyhow.

[Pro Patria Finland]

Originally Posted by danielkza The only thing we learned from all this is that AMXX's compiler sucks.

No, I learned that from Bailopans blagblog last year. Although very interesting information still.

[Sean D]

Originally Posted by Spunky Because in C++, bool (1 byte) is smaller than int (4 bytes). Always take your types into account when making optimizations.

we have already been over this: it will compile down into the same code. in any case, i'm pretty sure using booleans could actually end up being slower sometimes, because using anything smaller than the size of a word (4 bytes on 32-bit architectures) can cause a loss in speed due to the machine operations being slower.

@ pro patria finland: yeah the object code i posted was compiled with gcc without any extra optimization flags.

PS: sonata arctica owns