Matrix user forums

Morning all , hope everyone had a good xmas

I am stuck with this one, i have a project which reads all of the inputs for example "PORT C" and returned a value which can be 0 - 255 i want to be able to convert this into 1,2,3,4,5,6,7,8 so if i have a value of 20 i want to get an answer of 5 and 3 .
It has been a long time since i have done 2's Compliment stuff and i have forgot now

Steve

There are more efficient ways, but you could do this in a "long" (but perhaps more intuitive) way. For example, something similar to the following...
I'm not sure how you would want to output the result (especially as the result can be anything from zero to 8 different numbers), so I'll leave that part to you.

Thanks for that steve, will have a go with that later

trying to understand on how the example works

pin = 8
mask = 128

loop 8 times
if (portc_val >= mask)
//val found
output pin

portc_val = portc_val - mask
endif

pin = pin - 1
mask = mask / 2
end loop

Dont understand this . .

mask = 128

Should this be 255 ? if not why is it 128 ? or am i missing something

It's ok think i have sussed it . . .

steve