4 ms·
Interesting and surprising! Is there a source for this? There seems to have been a lot of work on emulation by Gary Davidian from an early stage - starting wit
by klelatti 3y ago
Interesting and surprising! Is there a source for this?
There seems to have been a lot of work on emulation by Gary Davidian from an early stage - starting with the AMD 29000 then 88k and then finally on PowerPC - according to his CHM oral history.
- twoodfin 3y agoThe version of this story I heard first comes from the (absurdly fun, if you’re into that sort of thing) 65scribe YouTube channel’s video on the PowerMac 8100: https://youtu.be/XYWp_R33mDs?si=4czECGOaHiM-MQqt https://youtu.be/XYWp_R33mDs?si=4czECGOaHiM-MQqt Roughly lines up with the history recounted here: https://lowendmac.com/2014/ibm-apple-risc-and-the-roots-of-the-powerpc/ https://lowendmac.com/2014/ibm-apple-risc-and-the-roots-of-t... Apple was planning to go with a radical new design, breaking with the past in both software and hardware, but Gary Davidian & co. saved them from their own foolishness via a skunkworks project that actually could ship.
- klelatti 3y agoMany thanks! Yes, all fits together. By complete co-incidence I have a blog post on the various Mac CPU transitions in draft that should be out tomorrow. One mildly amusing point, which I don't think is mentioned in either link is that the Cognac project was so called because the surname of John Hennessy, of Stanford RISC and MIPS fame, is also, of course, the name of a brand of Cognac.