AFAIK gpu's and ps3 cell chip did not support subnormals for that reason, also as the other poster said, they can be disabled. Alternatively you can add white-n

AFAIK gpu's and ps3 cell chip did not support subnormals for that reason, also as the other poster said, they can be disabled. Alternatively you can add white-noise to your data to avoid it (Say after an IIR filter on sound data).