At 23:30 12/11/97 -0600, you wrote: >i've had this idea in the past. > >if you have 8 banks of 80ns ram and rotated the active bank then writing >every 10ns could be done. Comes around, goes around. Back in the 16 bit mini days, it was very common to use interleaved memory. Just use the low order 2 or 3 bits as the bank select, then sequential reads or writes step thru the banks. Assuming most of the memory access is sequential, you can increase performance a bunch. The next thing we need to reinvent is a 16 fixed head fast hard drive for memory paging. Methinks I just showed my age ;-) 'Grif' N7IVS