Brad Parker’s usim is a nice C-language emulator for the first Lisp Machine first broadly produced, the MIT-CADR. It’s said that by 1978 upwards of 25 were produced at MIT, pretty much making it the first ‘production’ Lisp Machine. The subsequent commercial Lisp machines much of their origins from the CADR, so it’s very interesting …
Continue reading “Hacking usim – A MIT-CADR Lisp Machine emulator”