Re: [avr-gcc-list] Code Size Causes Crash?

[Dmitry K.]

On Thursday 27 January 2005 04:58, Kevin Neff wrote:
[...]
> While investigating this problem, I made a simple program to test code
> size (which is included below).  I've incremented and deincremented 'i'
> many times to increase the code size.  with 404 increment and decrement
> statements, the code is run correctly (the LED blinks).  The addition
> of one statement beyond that breaks the program.
[...]
>   avr-objcopy --strip-all -O ihex main.elf main.hex
>      text    data     bss     dec     hex filename
>      4312       0       0    4312    10d8 main.elfa
>
>   avr-gcc -mmcu=atmega128 -Wl,-Map=main.map,--cref main.o -o main.elf
>   avr-objcopy --strip-all -O ihex main.elf main.hex
>      text    data     bss     dec     hex filename
>      4322       0       0    4322    10e2 main.elf

4322 ?  What is the version of your compiler?

I have try compile this program with 3.3.4 .
First, text size was 4312 bytes (the same as you).
But after addition of one statement -- 4324 bytes.
Difference is 22 bytes: 20 -- statement themselves,
and 2 -- `rjmp' is replaced to `jmp'.