Something IBM did right (RT div

[stt at inmet]

The flip-side of this div = shift is to take
the route that Intel did with the 80960, and provide
an additional right shift instruction which does the same thing as
"normal" divide on negative numbers.  It is a lot
faster than divide, and always truncates toward 0.
Essentially it is a divide-by-power-of-2 instruction.

S. Tucker Taft
Intermetrics, Inc.
Cambridge, MA  02138