Re: [avr-gcc-list] do-while problem

[George Kalovyrnas]

I believe that this is not an actual error of any of the tools you have
(compilers, linker etc.)
The generated assembly is a result of the compiler optimization. To overcome
this problem try define your variable ABC as a volatile one:

        unsigned char volatile ABC;

This statement will force your compiler to read the value of ABC variable
each time before the comparison.

avr-gcc-list at http://avr1.org