mo@messy.bellcore.com (Michael O'Dell) (10/10/90)
Does anyone know of a 1620 simulator in C?? I suspect that a modern micro would be at least 2 orders of magnitude faster as simulating a 1620 than the real one ran. Just think! you could run MONITOR-I on it, for those of you who never had a 1301 disk on your 1620! -Mike PS - the only problem would be that Peter Langston's program which played music through a radio placed on the console (yes, controlled interference!) probably wouldn't work. All that nasty sheilding....
R_Tim_Coslet@cup.portal.com (10/15/90)
>Does anyone know of a 1620 simulator in C?? I suspect that >a modern micro would be at least 2 orders of magnitude faster >as simulating a 1620 than the real one ran. Just think! >you could run MONITOR-I on it, for those of you who never had >a 1301 disk on your 1620! OH MY!! I've thought of writing a 1620 simulator for my home computer SO MANY times... never did it yet though (I only have 3 or 4 decks of my old 1620 programs left, no SPS or FORTRAN II compiler though... and without a card reader wouldn't be much worth the trouble though). I'm sure it would be at least that much faster... 1620 used 12 digit instructions and spent 6 20us clock cycles fetching each one. MIGHT even be able to EXECUTE a complete clear core instruction in less time then the real 1620 took just to fetch it :-) > >PS - the only problem would be that Peter Langston's program which >played music through a radio placed on the console (yes, controlled >interference!) probably wouldn't work. All that nasty sheilding.... I remember hearing one that played music (jingle bells I think) on the LINE PRINTER! That "flying bar" printer made lots of interesting noises! R. Tim Coslet Usenet: R_Tim_Coslet@cup.portal.com BIX: r.tim_coslet
peter@ficc.ferranti.com (Peter da Silva) (10/17/90)
More recent, and better documented... how about an intel 4004 simulator? -- Peter da Silva. `-_-' +1 713 274 5180. 'U` peter@ferranti.com