On Fri, 2007-12-07 at 14:28 -0500, Aaron Kulkis wrote: > Hans Witvliet wrote: > > On Fri, 2007-12-07 at 12:59 -0500, James Knott wrote: > >> The Data General Eclipse line had a feature called "Writable Control > >> Store", which could be used to add custom instructions to the CPU. The > >> VAX 11/780 had it's microcode loaded from floppy at boot, but I don't > >> recall if it was changeable in the same manner as the Eclipse WCS. > >> > > > > Floppy? > > It was a real huge 8" flop ... (still have them here) > > > > Holding all of about 50k or so? > > I remember seeing some of those in an office supply store > in Hafir-Al-Batin, Saudi Arabia back in 1992. > > > hw
No! A (for that time) decent 2MB (rediculous these days) I used it on flex & uniflex OS on my 6809. Still beautiful DISC cpu (decent instruction set computer ;) All orthoginal instructions on one A4 page. Still regret it that Intel won that battle. hw -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
