Re: [TUHS] 68k prototypes & microcode

No, that was the 16032 from nat semi. I believe at least Nick and Les had been building oil drilling controll systems using pdp11s and custom TTL For Schulmerger before they came to Moto. They were definitely pdp11 fans. But they had used 360 systems at UT in college. So they idea of a 24 bit pointer stored in a 32 bit word they took from it. Remember the chip was a 16 chip inside. It has 16 bit Barallel shifter and All 32 bit operations took 2 ticks. And int was naturally 16 bits which is what it was in my compiler. I think it was Jack Test's compiler from MIT that was the first one ILP32 one for the 68k. I used to commute to work at Stellar with Les and he told me many of the stories btw. One of them I remember was they were worried about the Barallel shifter because it was one of the pieces that was different between the TTL prototype and the MOS implementation and it was the largest pattern on the die. It was one of the few parts of the chip that had full spice simulation. Clem On Wed, Feb 3, 2021 at 8:18 PM Arthur Krewat <krewat(a)kilonet.net> wrote: Sent from a handheld expect more typos than usual