[PD] working with integers

[rolfm at dds.nl]

hi, 

because of the problems i had with calculations using floating point
math, 

and following Roman's advice, i changed to integer math. 

however that's easier said then done. 

i'm running again into an unexpected limitation: 

32-bits can represent signed integers upto 2.147...billion. 

however, as soon as a number is greater then binary 27 bits the last
byte stays 0.( after 134217727 ) 

e.g. 134200000 + 25000 = 134224992 (should be 134225000). 

what am i missing? 

rolf
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