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INTROjr by Hornet [web]
[nfo]
screenshot added by phoenix on 2013-07-08 03:32:07
platform :
type :
release date : july 2013
release party : @party 2013
compo : oldskool demo
ranked : 2nd
  • 25
  • 1
  • 1
popularity : 60%
 60%
  • 0.89
alltime top: #6034
added on the 2013-07-08 03:32:07 by phoenix phoenix

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Youtube vid. We'll also post a full-framerate capture on Capped.

Yup, first intro/demo for the old PCjr, afaik (Trixter also did this :). This "final" version fixes the music and tweaks the rotozoom texture. DOSBox is missing half the scanlines and raster bars, but it'll at least give you the idea. We might even do a proper full-length demo for this machine someday.
added on the 2013-07-08 03:39:51 by phoenix phoenix
Tandy pls! :D
rulez added on the 2013-07-08 07:40:34 by Exin Exin
Tandy can't produce the video mode I invented, sorry! It doesn't look too bad if you run it anyway, so if you have a Tandy give it a shot.
rulez added on the 2013-07-08 07:56:53 by trixter trixter
Wow, finally a really oldschool PC demo with several parts.

How fast is PCjr? How many cycles left per frame at 50hz?

What is the information about the video mode you invented?

What is the sound? Sounds better than beeper. Adlib?
rulez added on the 2013-07-08 09:20:16 by Optimus Optimus
Ok, I realize some of the info are in the nfo file already.
added on the 2013-07-08 10:38:10 by Optimus Optimus
Nice PCJr demo
rulez added on the 2013-07-08 11:24:24 by Queen_Luna Queen_Luna
Best PCjr demo ever!
rulez added on the 2013-07-08 13:01:01 by Scali Scali
nice!
rulez added on the 2013-07-08 17:10:41 by sensenstahl sensenstahl
Awesome
rulez added on the 2013-07-08 17:28:09 by all i do is win all i do is win
A couple quick NFO corrections: 1. It's not really the first 100% Hornet demo/intro, for example there is this. 2. The music was made in MOD2PSG2, not Deflemask.
added on the 2013-07-08 17:40:19 by phoenix phoenix
Awesome. I knew it was about to happen one day :)
rulez added on the 2013-07-08 17:43:35 by visy visy
just in time i say!
rulez added on the 2013-07-08 17:45:36 by MuffinHop MuffinHop
Nicely done.
rulez added on the 2013-07-08 22:17:14 by zefyros zefyros
Nice intro. Didn't know phoenix were also making graphics. Are they recent gfx or some old stuff he made long time ago? I think I already saw that Hornet logo somewhere before.
rulez added on the 2013-07-09 03:36:34 by Forcer Forcer
Forcer: These gfx were all done recently for this intro. The (H) symbol is old; I just used it in the logo and rotozoom image.
added on the 2013-07-09 04:09:33 by phoenix phoenix
Until I saw his files for the demo, I didn't know phoenix was making graphics either!
added on the 2013-07-09 07:19:51 by trixter trixter
Very cool
rulez added on the 2013-07-09 07:57:27 by alk alk
That Hornet logo and man with the hat look quite nice.
added on the 2013-07-09 17:52:02 by Forcer Forcer
Very nice demo!
rulez added on the 2013-07-27 09:05:56 by Tronix Tronix
w000t!
rulez added on the 2013-07-27 22:50:53 by T$ T$
Just insane!!
rulez added on the 2013-08-03 00:03:41 by BackSpace BackSpace
rulez added on the 2013-08-18 23:29:18 by rudi rudi
xlat IS your friend
rulez added on the 2013-11-25 00:48:43 by ileaardbei ileaardbei
This is really oldschool.
rulez added on the 2014-01-16 13:21:37 by Alone_Coder Alone_Coder
Quote:

How fast is PCjr? How many cycles left per frame at 50hz?
What is the information about the video mode you invented?
What is the sound? Sounds better than beeper. Adlib?


PCjr is 4.77MHz 8088, same as the first PC, however the first 128K of RAM is treated as video memory so it runs with an additional wait state. Any code that runs in the first 128K runs at effectively half the speed of the original PC, making it slower than a C64. Obviously, I do everything I can to NOT run code in the first 128K, although interrupts must obviously access that area.

Cycles per frame at 60hz? Not sure, I never counted, but 8088 takes 4 cycles to access every byte, even instruction code, which sucks. Sometimes the smaller code runs faster than the "less cycles but larger" code.

Video mode I invented goes into graphics mode but then sets the video "page register" logic for text mode. This allows the hardware to double each scanline, changing 160x200x16 into 160x100x16.

Sound is the build-in TI 76496 (same chip as Sega Master System, BBC, TI 99/4a, others). 3-voice squarewave (mostly), with a 4th noise channel that can be either periodic or white noise in three predefined frequencies... OR you can have the noise frequency be programmable, but you give up the 3rd tone channel to do so. 16 logarithmic volume levels.
added on the 2014-01-16 17:26:00 by trixter trixter
Again, sick!

Seriously, you guys should be doing more demos!
rulez added on the 2014-01-16 17:39:06 by TomoAlien TomoAlien
The standard effect-parade down-ported to a truly horrible platform. Why??
sucks added on the 2014-01-16 21:00:37 by Photon Photon
awesome prod!
rulez added on the 2014-01-16 22:19:11 by whizart whizart
nice one
rulez added on the 2014-01-17 01:56:16 by Triace Triace
Cute prod, even if the framerate is a bit crap on some of the effects (not that I could do it any better :D )

@Photon: Yeah, kind of like most Amiga-demos in the past 15 ears ;)
rulez added on the 2014-01-17 08:49:23 by britelite britelite
past 15 years, that is :)
added on the 2014-01-17 08:49:45 by britelite britelite
Why this machine failed on the market?
Trixter could go to great lengths explaining why, but the Wikipedia article linked in my first comment is equally informative.
added on the 2014-01-17 16:41:47 by phoenix phoenix
Nice one, I especially like the music! :)
rulez added on the 2014-01-17 19:48:50 by StingRay StingRay
For anyone who wants to run this on a later-model Tandy 1000 system, NewRisingSun made a patch.
added on the 2016-01-18 23:35:05 by trixter trixter
jr!
rulez added on the 2016-02-12 09:39:43 by g0blinish g0blinish
Quote:
The standard effect-parade down-ported to a truly horrible platform. Why??


supporting horrible platforms is the essence of the demo scene ;)
rulez added on the 2018-04-16 22:08:15 by Asato Asato

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