Re: Oracle Releases Solaris 11.4 "CBE" Free For Open-Source Developers / Non-Production Use

2022-04-20 Thread Michael-John Turner via cctalk
On Tue, Apr 19, 2022 at 11:18:07AM -0400, Chris Zach via cctalk wrote: Wonder if there is a SPARC build. Guess it's too much to ask if it will run on my Sun 386i's There is, but the hardware support does exclude a lot of "hobbyist" SPARC systems[1]: "Oracle Solaris 11.4 supports systems bas

Re: interesting DEC Pro stuff on eBay

2022-04-20 Thread Paul Koning via cctalk
> On Apr 19, 2022, at 3:38 PM, John Foust via cctalk > wrote: > > At 01:40 PM 4/19/2022, Bjoren Davis via cctalk wrote: >> Looking at the photo I see the name "Dave Iacobone". I wonder if he is >> still around and remembers that board. > > https://www.linkedin.com/in/dave-iacobone-0a11436

Re: interesting DEC Pro stuff on eBay

2022-04-20 Thread Chris Zach via cctalk
Maybe a different guy, since Pro development was in the late 1970s to early 1980s. paul Probably. Still would be interesting to see what the board actually is/does, I wondered why they never did DMA transfers for the Pro, maybe being a single user system it was pretty much pointless

Re: interesting DEC Pro stuff on eBay

2022-04-20 Thread Paul Koning via cctalk
> On Apr 20, 2022, at 1:37 PM, Chris Zach via cctalk > wrote: > >> Maybe a different guy, since Pro development was in the late 1970s to early >> 1980s. >> paul > > Probably. Still would be interesting to see what the board actually is/does, > I wondered why they never did DMA transfe

Re: interesting DEC Pro stuff on eBay

2022-04-20 Thread John Foust via cctalk
At 12:27 PM 4/20/2022, Paul Koning wrote: >Maybe a different guy, since Pro development was in the late 1970s to early >1980s. Perhaps his son? Or the guy returned to DEC, or listed his career differently on LinkedIn for other reasons? It's not a common name. - John

RE: idea for a universal disk interface

2022-04-20 Thread Tom Gardner via cctalk
I don't know it for certain, but I am pretty sure that it is true that virtually all controllers issue the commands in this sequence, Set Cylinder, Set Head and then Seek, or words to that effect. They then wait for Ready which can be 10's of milliseconds later. So there is plenty of time to loa

RE: idea for a universal disk interface

2022-04-20 Thread Fred Cisin via cctalk
On Wed, 20 Apr 2022, Tom Gardner via cctalk wrote: Likewise, I don't know it for certain, but I am pretty sure that it is true that virtually all controllers switch heads sequentially when transferring blocks beyond the end of the track, Are you implying that data/file that is more than one tr

Re: idea for a universal disk interface

2022-04-20 Thread shadoooo via cctalk
Guy, I agree that accessing data in blockram (synchronous with fixed latency) is really easier than accessing it from RAM (asynchronous with variable latency). Anyway I'm weighting the "cost" of additional complexity, which in change would allow to spare on Zynq cost. In any case memory access is

Re: idea for a universal disk interface

2022-04-20 Thread Guy Sotomayor via cctalk
I'm using Zynq SOMs (System on a module) that will plug into a "base board" (with hilrose connectors).  It is the base board that will have the "personality" of the emulator.  The baseboard will be fairly simple (level shifters, a small bit of logic and the drive interface transceivers).  So th