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Skeezics Boondoggle

@skeezicsb@oldbytes.space
  • Open on oldbytes.space

He's just this guy, y'know?

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8 Posts
Joined September 01, 2023

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skeezicsb
Skeezics Boondoggle @skeezicsb@oldbytes.space · Jun 02, 2026
Skeezics Boondoggle
@skeezicsb@oldbytes.space

He's just this guy, y'know?

oldbytes.space

One mantra of the sysadmin arts imparted by my sensei many, many moons ago: "Anything with moving parts is evil." RS-232 is _full_ of moving parts.

What is the sound of one handshaking? USB-to-serial converters that... don't.

The states of "enlightenment" and "dejected resignation" are one.

#PERQ sufferers, from novitiate to master, take heed; this is as far as I go with shameless self-promotion:

https://github.com/skeezicsb/PERQemu/releases

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Open post
skeezicsb
Skeezics Boondoggle @skeezicsb@oldbytes.space · Apr 11, 2026
Skeezics Boondoggle
@skeezicsb@oldbytes.space

He's just this guy, y'know?

oldbytes.space
Replying to @stepleton@oldbytes.space
@stepleton@oldbytes.space Hmm. I wonder if this is an actual manifestation of the symptom noted in the microcode source, where "the hardware has a glitch when first starting up the Writable Control Store RAMs, the power surge can screw up the Z80". It would be interesting to watch the +5V rail during bootup to see how pronounced that surge actually is. DDS 170 at least means that maybe your DIB is okay and you can skip desoldering and testing every 74S225 in sight. For now. :-)
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Open post
skeezicsb
Skeezics Boondoggle @skeezicsb@oldbytes.space · Apr 11, 2026
Skeezics Boondoggle
@skeezicsb@oldbytes.space

He's just this guy, y'know?

oldbytes.space
Replying to @stepleton@oldbytes.space
@stepleton@oldbytes.space Hardcopy of the schematics and code listing, *spiral bound*? 🔥
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Open post
skeezicsb
Skeezics Boondoggle @skeezicsb@oldbytes.space · Mar 07, 2026
Skeezics Boondoggle
@skeezicsb@oldbytes.space

He's just this guy, y'know?

oldbytes.space
Replying to @lefebvre@hachyderm.io
@lefebvre@hachyderm.io Um, I do. :-)
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Open post
skeezicsb
Skeezics Boondoggle @skeezicsb@oldbytes.space · Jan 03, 2026
Skeezics Boondoggle
@skeezicsb@oldbytes.space

He's just this guy, y'know?

oldbytes.space

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!)

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Open post
skeezicsb
Skeezics Boondoggle @skeezicsb@oldbytes.space · Jul 08, 2025
Skeezics Boondoggle
@skeezicsb@oldbytes.space

He's just this guy, y'know?

oldbytes.space

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!

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Open post
skeezicsb
Skeezics Boondoggle @skeezicsb@oldbytes.space · Jul 07, 2025
Skeezics Boondoggle
@skeezicsb@oldbytes.space

He's just this guy, y'know?

oldbytes.space

#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? :-)

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skeezicsb
Skeezics Boondoggle @skeezicsb@oldbytes.space · Jun 24, 2025
Skeezics Boondoggle
@skeezicsb@oldbytes.space

He's just this guy, y'know?

oldbytes.space

@stepleton@oldbytes.space #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."

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