Hi all,

I've been really tearing my hair out over this one recently. I need to subtract one 16 bit number from another 16 bit number in asm, and also catch if the result is negative.

I kind of got it working, but was getting huge minnus numbers screwing up my results :-)

I'm trying to work out the difference between one 16 bit ADC sample, and the next, for slow changing signals.

Can anyone help me with the code?

Thanks

Graham


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