AVR-Chat

Or in fact if your results may be > 16 bits you can use 

uint32_t result = param1 - param2
then check if > 65535 and deal with it.
etc

> To: avr-chat@yahoogroups.com
> From: catalin_cluj@hotmail.com
> Date: Fri, 2 Sep 2011 16:38:28 -0600
> Subject: RE: [AVR-Chat] Calculate signed and unsigned
> 
> 
> I would use 
> uint16_t instead of unsigned  int.
> int16_t instead of int.
> 
> 
> Cast to (uint16_t)
> 
> 
> I never know what an int size is :-)
> 
> 
> Your operations might result in numbers greater than 16 bits; must make sure you deal with that.
> 
> 
> Cat
> 
> > To: AVR-Chat@yahoogroups.com
> > From: djantoxa@rambler.ru
> > Date: Sat, 3 Sep 2011 01:10:58 +0300
> > Subject: [AVR-Chat] Calculate signed and unsigned
> > 
> > Hello!
> > 
> > I using AtMega32A, AVRStudio 4.18SP3 and WinAVR 2011.
> > 
> > unsigned int param1;
> >   signed int param2; (
> > unsigned int param3;
> > 
> > OCR1B = (unsigned int)(param1 - param2);
> > OCR1A = (unsigned int)(param1 - param2 - param3);
> > 
> > I do not get the correct result. How to calculate signed and unsigned variables?
> > 
> > --
> > Best regards,
> > Roman Antoshchenkov
> > 
> > Kharkiv
> > Ukraine
> 
>  		 	   		  
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> 
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