Broken optimiser?

Hi, We are encountering unexpected behaviour following an increase in optimisation levels from 8 to 9. The problem we are seeing centres around an XDATA variable assignment (vt_safety_u = B0_SAFETY...
code optimisation

what is meant by code optimization?how is it carried out?
Disappointing optimisation...

Hi, I'm doing a comparison between BL51 and Lx51 to determine the code space savings- I'm a bit suprised to see that for the same project, Lx51 yields a code reduction of only 0.6%- I've enabled the...
Optimising C++

I've ported some code from C to C++ and I'm shocked at how much more slowly it runs. I've written a lot of C++ in the past, so I know I haven't done anything absurdly inefficient, but execution times...
typedef & optimisation

In the book "TCP/IP Lean" [1], the author states: "I have used #define in preference to typedef because compilers use better optimisation strategies for their native data types." Is this true of...