|Re: FFT routines Kategorie: Programmierung Assembler (von PeterS - 28.02.2013 17:28)|
Als Antwort auf Re: FFT routines von PepeV - 28.02.2013 15:41
> > > Peter: can you explain why interrupts mess up my routines? Is it that interrupts|
> > > trigger actions that change registers while my routines are running? Is it the Y-
> > > register?
> > Hello Pepe,
> > you are right. I just had forgotten that the Y-Register should better not be changed,
> > because it is normally used as Data Stackpointer. The interrupt routines are using it
> > to save the contents of registers.
> > Regards,
> > Peter
> Hi Peter,
> There is a remark about the use of the Y-register in the English manual ('do not
> use it') but I was uncertain wether that also holds when the register is saved with
> push and pop.
> The FFT-routines use a lot of (pointer) variables so I can hardly do without the
> Y-register. But what is the effect on the program flow when I disable global
> interrupts? Will that do any damage? Are there any side effects?
There is no damage. The only possible side-effect is that that the Timer Interrupt
could be delayed, and the clock, multitasking & servos might be not accurate.
Re: FFT routines (von PepeV - 28.02.2013 21:26)
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