bug or missunderstood?

[Haplo]

Hello, if I run this program:

Code:

cls dim a,b as ubyte dim dw1,dw2 as uinteger dim valor as uinteger a=10 b=5 valor=a*b print "valor:";valor a=100 valor=a*b print "valor:";valor valor=10000 print "valor:";valor print valor=a*b print "valor:";valor print dw1=10 dw2=5 valor=dw1*dw2 print "valor:";valor dw1=100 valor=dw1*dw2 print "valor:";valor

the output in screen is:

valor:50
valor:244
valor:10000

valor:244

valor:50
valor:500

This is a bug?