Re: [Sdcc-user] SDCC interrupt woes

[Maarten B. <sou...@ds...>]

Ronny,

If the registers are not used in the ISR they do not 
need to be saved and restored. The compiler does check 
that.

And without a clue what the source and generated asm 
looks like we cannot help you more.

Maarten

> I have a small routine that uses an interrupt to reset a timer. It  appears 
> to all work well, but upon entering the ISR, the chip appears to go into  a 
> cold start. After checking the assembly listing, it appears the registers are  
> not being saved ie.; eliminated unneeded push/pop psw, etc. Why is the  compiler 
> suppressing the register storage? This is not something I called for  with a 
> pragma.
> Thanks for the help,
> Ron
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