Meanwhile, the #PERQ has broken once again. A problem somewhere on the EIO board again, affecting floppy and hard drive both, but only after some data have been loaded from them. DDS=157 or 158 on HDD or FDD boots of POS respectively. PERQs gonna PERQ...

Handy: it looks like it works fine to replace a PAL16R8 with a GAL16V8 (at least a GAL16V8D, -15) as the DCD2 chip on a #PERQ 2T2's DIB.

I was able to reuse the old, singed DCD2 label from the original PAL... which I might have plugged in backwards one day...

I am an unabashed pixel slut. Annual cleaning jag complete: dust bun^Wrhinos rounded up, keyboards de-grossified, cable tangling gremlins thwarted again (for now). The next challenge is to get four *actual* #PERQ screens lit up to go with these four emulated ones. (And you thought AI datacenters were driving up your electric rates. Ha!)
Just in time for #PERQtober ! An adapter to replace your missing or broken #PERQ T2 landscape monitor with a VGA display. Thanks to @skeezicsb for early advice.
So you want to connect the floppy drive ribbon cable in your #PERQ to a Gotek instead of a Shugart 851 floppy drive? This might be handy...
At last, at last, at last. This boring photo may be one of my biggest milestone posts for this year: RSRE's Flex operating system recovered and finally running on an actual #PERQ 2. With thanks to @skeezicsb of course.
Okay, here's the screenshot of the #PERQ emulator holding up today's newspaper. For fans of #CommonLisp or #retrocomputing in general, I've slapped together an archive here: https://github.com/skeezicsb/PERQmedia/tree/master/Accent_S6/Lisp_M3 with a pre-configured hard disk image and config files. The T2 image works with the current release (v0.7.5) but to run the T4/4MB configuration requires a build from source or an updated release (v0.7.8) coming Real Soon Now. [Edited: oh yeah, Hemlock runs too.] Share and enjoy!
#PERQ Emulator progress: 24-bit/4MB "T4" configuration now booting Accent S7. Oooooooooooh can a Spice Lisp with enough space to do some stuff be far behind? :-)
@stepleton #PERQ
"Once more unto the breach, dear friends, once more;
Or close the wall up with our English dead.
In peace there’s nothing so becomes a man
As modest stillness and humility:
But when the blast of war blows misaligned fetches in our ears,
Then imitate the action of the MST PROM;
Stiffen the sinews, summon up the blood,
Disguise fair nature with hard-favour’d rage;
Then lend the eye a terrible aspect;
Let pry through the portage of the trace file
Like the brass cannon; let the brow o’erwhelm it
As fearfully as doth a galled address register
O’erhang and jutty his confounded LSBs,
Swill’d with the wild undefined behaviors
of an odd address'd Fetch2."