Compiler optimalization

[foto4me]

Compiler problem description:

1/ almost any optimalization CODE

2/ parameter passing via STACK is an AVR MCU wildness (bad)

3/ Is use uncorrect refresh stack poiter
(as far is called interrupt between OUT SPL,R26 and OUT SPH,R27
in exceeding limit 256b, as to interrupt use uncorrect SP )

4/ Compiler almost not using REGISTERS ,
using almost RAM via X/Y/Z poiter.

5/ Not suppor externall RAM (XRAM)

[marko.medic]

Hi,

Please explain your questions in more details.
I'm afraid that i didn't understand your questions clearly.
Also provide us with some code which demonstrate mentioned problems.

Regards