12F675 compare voltage help.

[geckogrotto]

I am stuck again.

I multiply by 1000 to shift where the decimal will be.
The problem is my first calculation is
1022*1000 comes out 38960 instead of 1022000 How do I keep my whole number?


I tried this as well
dummy VAR WORD
adval0=1019
dummy = adval0*1000*3
adval0 = div32 1023


Gives me 111... Should be giving me 2988 or something...

[mister_e]

Try this...

    adval0 = adval0*3000
    adval0 = div32 1023

[geckogrotto]

Thank you much Mister_e!

[geckogrotto]

Stuck again. I'm just not understanding this math

adval0 = 2904
result = adval0 / 15100
remainder = adval0 // 15100
result = 0
remainder is 2904
How do I get the acutal number it should be 0.192xxx?


I'm looking at dig but not sure if thats the right thing to use because it will not always be 2 digits...

adval 0 = 2904*10
result = adval/151
192
then use dig to move the places... and do something like
if > 9999
if > 999
to figure out where the . should be... Is this the best way to do it?

[skimask]

Stuck again. I'm just not understanding this math

adval0 = 2904
result = adval0 / 15100
remainder = adval0 // 15100
result = 0
remainder is 2904
How do I get the acutal number it should be 0.192xxx?

You aren't going to get .192xxx.
PBP only deals with integer math, as stated in the PBP manual.
You'll have to write your own routines to get anything past the decimal point.

[geckogrotto]

Ok how do I do that. I had edited my post while you were posting.

[skimask]

Ok how do I do that. I had edited my post while you were posting.

I see the edit, and you're on the right track, pretty much the only track.