cf232f113f
I586_OPTIMIZED_BCOPY is configured. Similarly for bzero/I586_OPTIMIZED_BZERO. Fake 586's had better have a hardware FPU with non-broken exception handling (we mask exceptions, but broken exception handling may trap on the instructions that do the masking). I guess this means that the routines won't work on most 386's or FPUless 486's even when they have a h/w FPU.