calculation problem

hi all,
my project now is dealing with some calculation.The main purpose is i want to get average value of Xs and Ys .
The problem i faced now is when i compile it,there was error "unable to fix the variable "
the formula are:
tan thetai= (yi – ys)/(xi- xs) i=1,2,3


below was the code i wrote:

X1 var word
Y1 var word
X2 var word
Y2 var word
X3 var word
Y3 var word
Xs var word
Ys var word
Xs1 var word
Xs2 var word
Xs3 var word
Ys1 var word
Ys2 var word
Ys3 var word



theta1 var word
theta2 var word
theta3 var word

sin_value1 var word
cos_value1 var word
tan_value1 var word

sin_value2 var word
cos_value2 var word
tan_value2 var word

sin_value3 var word
cos_value3 var word
tan_value3 var word

temp1 var word
temp2 var word
temp3 var word
temp4 var word
temp5 var word
temp6 var word
temp7 var word
temp8 var word
temp9 var word
temp10 var word
temp11 var word
temp12 var word
temp13 var word
temp14 var word
temp15 var word
temp16 var word
temp17 var word
temp18 var word
temp19 var word
temp20 var word
temp21 var word
temp22 var word
temp23 var word
temp24 var word
temp25 var word
temp26 var word
tempA var word
tempB var word
tempC var word

let X1 = 0000
let Y1 = 0000
let X2 = 0000
let Y2 = 6000
let X3 = 6000
let Y3 = 6000




sin_value1 = sin theta1
cos_value1 = cos theta1
tan_value1 = sin_value1/cos_value1


sin_value2 = sin theta2
cos_value2 = cos theta2
tan_value2 = sin_value2/cos_value2


sin_value3 = sin theta3
cos_value3 = cos theta3
tan_value3 = sin_value3/cos_value3




temp1 = Y2-Y1
temp2 = X1*tan_value1
temp3 = X2*tan_value2
temp4 = tan_value1 - tan_value2
temp5 = temp2 - temp3
temp6 = temp1 + temp5
Xs1 = temp6 / temp4

temp7 = Xs1 -X1
temp8 = temp7 * tan_value1
Ys1 = Y1 + temp8


temp9 = Y3-Y2
temp10 = X2*tan_value2
temp11 = X3*tan_value3
temp12 = tan_value2 - tan_value3
temp13 = temp10 - temp11
temp14 = temp9 + temp13
Xs2 = temp14 / temp12

temp15 = Xs2 -X2
temp16 = temp15 * tan_value2
Ys2 = Y2 + temp16


temp17 = Y3-Y1
temp18 = X1*tan_value1
temp19 = X3*tan_value3
temp20 = tan_value1 - tan_value3
temp21 = temp18 - temp19
temp22 = temp17 + temp21
Xs3 = temp22 / temp20

temp23 = Xs3 -X1
temp24 = temp23 * tan_value1
Ys3 = Y1 + temp24

temp25 = Xs1+Xs2+Xs3
temp26 = Ys1 + Ys2 + Ys3
Xs = temp25/3
Ys = temp26/3

end



thanks a lot :)

Are you sure the error was not “ERROR: Unable to fit variable” instead of “fix the variable”? If it was “fit”, then you are most certainly using a PIC without enough RAM for all 110 bytes that you are requesting.

Your code as is compiles fine using a 16F628 (224 bytes of RAM) as the target device but NOT with the 16F84A (68 bytes of RAM) as the target device. In the latter, I get the unable to fit error noted above. Check the data sheet for your PIC to see how much RAM is available. Please let us know.

Good Luck,

Paul Borgmeier
Salt Lake City, Utah
USA

thank you very much paul. Before this i use 16F84A (68 bytes of RAM) as the target device, and now change it to 16F877A and it can compile sucessfully..
thanks again. :)