On Sat, Feb 4, 2023, 4:44 AM emanuel stiebler via cctalk < cctalk@classiccmp.org> wrote:
> On 2023-02-03 22:48, Chris Zach via cctalk wrote: > > > 2) There are at least two RQDX3 ROM sets. The earlier one does not > > support the RX33 floppy and doesn't give any info during formatting. The > > later version (Version 4) does support the RX33 and is a lot nicer. > > Is it just the ROMs, or also some HW changes? > Do we have backup of the newer versions? > http://www.dunnington.info/public/DECROMs/ http://www.dunnington.info/public/DECROMs/ROMlist > 23-216E5 23-217E5 M7555 16K RQDX3 T-11 code issue 1 0 23-217E5 23-216E5 M7555 16K RQDX3 T-11 code issue 1 1 23-243E5 23-244E5 M7555 16K RQDX3 T-11 code issue 2 0 23-244E5 23-243E5 M7555 16K RQDX3 T-11 code issue 2 1 23-285E5 23-286E5 M7555 16K RQDX3 T-11 code issue 3 0 up to RD53 only(?) 23-286E5 23-285E5 M7555 16K RQDX3 T-11 code issue 3 1 up to RD53 only(?) 23-339E5 23-340E5 M7555 16K RQDX3 T-11 code issue 4 0 Handles RD54 23-340E5 23-339E5 M7555 16K RQDX3 T-11 code issue 4 1 Handles RD54 Some good 30+ year old information here: http://www.ibiblio.org/pub/academic/computer-science/history/pdp-11/hardware/third-party-disks.txt >
