History

Unix

https://en.wikipedia.org/wiki/Compatible_Time-Sharing_System

8080

S-100 bus

CP/M page

Mirrors:

   barnyard.co.uk in the UK.
   uxpro.com in the USA.
   cpm.cn-k.de in Germany.
   braeworks.org in Australia.
   datatraveler.co.uk in the UK.
   cpm.retropc.se in Sweden.

big collection

ZX Spectrum, teletext stuff

Intel

4004

Z80

educational Z80

ZX Spectrum collection

worldofspectrum

http://www.shadowmagic.org.uk/

The Z80 development kit

See also zsdcc, hisoft C

Zeus Assembler

TRS-80 soft

BBC Micro

Software archive BBC Basic

Gigatron

процессор, реализованный на мелкой логике

ROMs archive

https://github.com/Abdess/retroarch_system

Xerox

Кронос - Based on N.Würth' Lilith, extended from 16 to 32 bits.

PDP-11

УКНЦ

Apple

Macintosh development stories

Atari

6502 assembler