Ok I mixed up the DX and SX; at least the DX has the fp hardware. Still, many of the x87 instructions you'd want to use to implement pow() take hundreds of cycl

Ok I mixed up the DX and SX; at least the DX has the fp hardware. Still, many of the x87 instructions you'd want to use to implement pow() take hundreds of cycles on a 486, so I'd bet it would take tens of usec to do each pow().