rjd (07/20/82)
The timings for the 16Mhz M68000 vs the VAX were probably correct. If you notice, the Motorola M68000 clocked at 16Mhz had no wait states. Presumably, a M68000 clocked at 8Mhz opitimized to have no wait states would run exactly 1/2 as fast as the Motorola timings for a 16Mhz processor or about .87 of a VAX. (observation care of lanl-a/jhf) What I want to know is what is a "VAX"? A 780?, 750?, or a 730?
news@sri-unix (07/24/82)
To: info-micro at BRL From: Michael <MTHoward@Parc-Maxc> Via: Parc-Maxc; 23 Jul 82 15:59-EDT Via: Brl; 23 Jul 82 16:27-EDT Via: Brl-Bmd; 23 Jul 82 16:40-EDT Via: Brl.ArpaNet; 23 Jul 82 20:23-PDT The reason that the 8 MHz versions of the 68000 ran less than half the speed of the 16 MHz version is because of wait states. I believe I said that the two 8 MHz machines tested ran with 2 and 4 wait states, respectively. Also, in the machine descriptions given I said that the VAX was a 780. Michael