2 bytes to word array variable - fastest way

[cncmachineguy]

Have you tested that? it seems like it will shift ADRESH 8 times, then assign it to the word. DOing it like that would be better I think like this:

adcdata[index] = ADRESH
adcdata[index] = adcdata[index]<<8
adcdata[index] = adcdata[index]+ADRESL

Not sure about that either.

I think you can do this:

adcdata.highbyte[index] = ADRESH
adcdata.lowbyte[index] = ADRESL

I am not certain on this, so my reply is as much a question as an answer. Hmmm, that sounds a little deep

OK, this I am certain about:

tempword var word
 
tempword.highbyte = ADRESH
tempword.lowbyte = ADRESL
adcdata[index] = tempword