AVR-Chat

At 09:42 AM 8/08/2013, you wrote:
>I could be wrong, but, on page 86 of the GCC manual it says that "-O" (or
>"-O1"):

I use C under duress...but.. -O needs to be followed by another number
AFAIK like -O1, -O2, -O3 and -Os.

Maybe -O without anything else is equal to -O0.

I always use the AS4 default of -Os, in fact I will use that
even with the Code Red compiler or AS6 whenever I must use them.

The project I'm working on at the moment has TWI and I'm using -Os.

Maybe we will need to wait for a GCC guru to enlighten both of us. :-)




Regards

John Samperi

********************************************************
Ampertronics Pty. Ltd.
11 Brokenwood Place Baulkham Hills, NSW 2153 AUSTRALIA
Tel. (02) 9674-6495
Website  http://www.ampertronics.com.au
*Electronic Design * Custom Products * Contract Assembly
********************************************************