  We present a progress report on the Cluster Processor, a special-purpose
computer system for the Wolff simulation of the three-dimensional Ising model,
including an analysis of simulation results obtained thus far. These results
allow, within narrow error margins, a determination of the parameters
describing the phase transition of the simple-cubic Ising model and its
universality class. For an improved determination of the correction-to-scaling
exponent, we include Monte Carlo data for systems with nearest-neighbor and
third-neighbor interactions in the analysis.
