How were 32-bit minis built in the 70s/80?

On 5/11/2019 5:14 PM, Warren Toomey via cctalk wrote: 8 bit computers are EVIL. REPENT DEAR BROTHER. I WILL PRAY FOR YOU. 24 bit computers are HOLY AND DIVINE. Building a 12/24 BIT CPU with 8 bit I/O. (back on topic) Early 70's computers other than IBM used TTL, and fast core memory with mostly a 16 bit word width. Other than the PDP 11, most computers where adapted from the transistor era with tweaks added for banks of memory.When the late 70's came around commercial customers had a large main frame computer or small control computer from a few years earlier with FAST TTL (S)logic, PDP 11's, IBM 360's or clones,or TTL standard/H like PDP 8 or NOVA computer. Bit slice logic like the 2901 alu, (1975) would make for nice low cost 16/32 bit cpu with byte load/store. The market for 32 bit computers was decided however to sell FAST LARGE systems (floating point/64K+ memory) like the VAX (S TTL) or upgrade other designs like the NOVA computer with Custom or semi-custom (PAL logic) logic. INTEL being slow with the forgotten APX 432 design came out with 8086 leaving us with the defective CPU's of today. Ben's view point. I am doing my computer with a FPGA development system for design logic and testing and later using 2901's and LS TTL with 3 proms used for the alu/control cards. I have A nice 8/16/32 cpu design with 512KB of memory (2901 alu )but I can't get it to route correctly. The 12/24 bit cpu just fits with the FREE develpment software. For a few K $ I can get the better version with being able route by hand my logic to meet timing specs. Once hardware SD card/serial port and software are working I then will port the design to TTL. I may need to write my own tiny langage to boot strap my system. Ben. PS: 16 bit computer format [op 3..1][ac 3..1][mode 3..1][ix 3..1][aux][k 3..1] The tricky part is K is the upper 3 address bits to extend 16 bit offset to 19 bits or a auto indexing mode. This would be valid memory for the late 70's early 1980's but not for today.