> >You should be safe with BSF and MOVWF though > Whoops, looks like I took the wrong one of the two possible meanings Sorry for that. BSF _plus_ MOVWF As Olin calculated, even a fast PIC is not generally prone to r-m-w if some minor allowances are made. A fast micro like the Scenix, which has a port architecture similar to a 16-series PIC, can be, as cycle time is down at 20ns -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist