2015-07-02 7:31 GMT+02:00 tony duell <a...@p850ug1.demon.co.uk>: > Not all minis came from the States :-) >
That's right. There were one odd swedish mini as well. Datasaab manufactured a line of minis called D5 in the early seventies. The D5/10, D5/20 and D5/30. 16 bits. They were used among others in banks for controlling terminals. The D5/20 apparently had 64 by 24 bit microcode, used serial arithmetic and the memory cycle was 1.33 us http://www.datasaab.se/Aktuellt/IT_ceum/D520_FUB.pdf (in Swedish) http://www.datasaab.se/Bildarkiv/D530/d530_eng.htm http://www.datasaab.se/Bildarkiv/NTP/ntp_eng.htm > > One of my favourite non-mainstream families is the Philips P800 series. > It's > a 16 bit machine with 16 registers (0 is the program counter and 15 > is the stack pointer, rest are mostly general purpose) and separate > I/O instructions (not memory-mapped I/O). There were several models > with various implementations of the architecture, including > > P850 (TTL, hardwired not microcoded) > > P855, P852, P856, P857, P860 (TTL, microcoded) > > P851 (Custom bitslice ICs, microcoded) > > P854 (AM2900 bitslice, microcoded) > > P853 I think (Single chip) > > No, I don't have all of those... > > -tony >
