Wrong values with COSINE!

[BigWumpus]

all my work is that i am getting Power. It is given as you know by:

P = V x I x Cos alpha.

And out of this silly task you are able to make such a lot of dust ?

P=V*I 16 Bit
X=COS(Alpha*255/360) 8 Bit 2-komplement
Minus=X.7
P=P*(X and %01111111) 32 Bit !!!
P=Div32 127
It's quick-n-dirty, maybe there is an error inside....

And all the way without using this boring 0,xxx, only integers !
Ha, the good old times are back, where programmers must understand what they are doing and counting the bits...

Just USE YOUR BRAIN, not your mouth !



Hello Mel,
Yes, I ruin you prices and your time....
but I inserted 1 mistake, so this code will not work right. But some postings ago, there was the right hint. Maybe we could train his brain....