The testing facilities at Trane air conditionings in Tyler, TX still employs one of these things, my dad designed the facility's systems almost 20 years ago. I've seen its pretty cool. I guess if it aint broke don't fix it
The Motorola 68000 processor's instruction set is almost a direct rip-off of the PDP11's instruction set. I guess if you have to use switches, better make the machine instruction set as comfortable as possible. ;)
@porcorosso81 "The Motorola 68000 processor's instruction set is almost a direct rip-off of the PDP11's instruction set". Not really. They are quite a bit different. A Motorola engineer told me that his company asked DEC if they could use the PDP instruction set and they refused. Motorola had little recourse than to develop their own architecture. Differences include 32-bit bit (68K) vs. 16-bit (PDP) and the 68K has both address registers as well as data registers (PDP only has one kind).
oh...I feel old. I sold this stuff. It's museumesque!
fred30777 1 month ago
Ah, brings back memories in USAF. We used PDP-11/84.
fvalen001 1 month ago
The testing facilities at Trane air conditionings in Tyler, TX still employs one of these things, my dad designed the facility's systems almost 20 years ago. I've seen its pretty cool. I guess if it aint broke don't fix it
XXTheHacker 1 year ago
Paul allen granted me access to one of his VAX 11's!
6364gg2 2 years ago
Fine computers at that time.
Very important pioneers for the development of CISC (Complex Instruction Set Computer)
TengriAsura 3 years ago
@TengriAsura
The Motorola 68000 processor's instruction set is almost a direct rip-off of the PDP11's instruction set. I guess if you have to use switches, better make the machine instruction set as comfortable as possible. ;)
porcorosso81 11 months ago
@porcorosso81 "The Motorola 68000 processor's instruction set is almost a direct rip-off of the PDP11's instruction set". Not really. They are quite a bit different. A Motorola engineer told me that his company asked DEC if they could use the PDP instruction set and they refused. Motorola had little recourse than to develop their own architecture. Differences include 32-bit bit (68K) vs. 16-bit (PDP) and the 68K has both address registers as well as data registers (PDP only has one kind).
Tapajara 1 day ago