[avr-gcc-list] SREG save?

[Gergely Szentesi]

Hi!

I`m working on a small project with an atmega128 proc.
About the gcc i have a following question: 
Should i save the SREG ( system register ) to a register when the program 
enters to a signal or interrup routine or after a cli() ( disable global 
interrupt )?

SIGNAL(...)
{
    char csreg;
    csreg = SREG;        //is it important or not?
    ...code....
    SREG = csreg;
}

Thanx: )


Szentesi

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