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Altera_Forum's avatar
Altera_Forum
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22 years ago

Nios 1 vs Nios 2

We have an avionics lighting group in our company that is expanding into newer technology. It is only a matter of time that they will need a super low cost micro solution. I am in a group that desi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
22 years ago

Thsoe are speed only optimizations? I figured it was for speed and size.

With NIOS I, I didn't see any difference between -O2 and -O3 when looking at the ojbect dump file.

However -O0, and -O1 I do see a difference (larger memory footprint).

If I need to squeeze code that much then I jump to ASM since you can usually get a footprint thats twice as small or more,

then the original C code at -O2. I'll need to give -Os a try since I don't think I've ever tried that before.