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Wanderer
Account closed
Registered: Apr 2003
Posts: 478 |
Side border scrolling
Here's a question that I've had on my mind for almost 20 years now.
How do you think side border scrolling was invented?
Do you think someone had sprites on the screen while a scroller was moving and they noticed a gap?
Perhaps someone was watching a depack routine and noticed that the side borders opened up by one raster line. You know the crunchers that used to increment $d016 as it uncrunched.
Or did someone simply break out the programmers reference guide and figure it out?
This is speculation but I'd like to hear your comments.
Oh and here's another... in the early 80's when there were no cartridges I always wondered how games were cracked. You would reset the computer by grounding the first and third pins on the far left port but you'd also lose data in the process sometimes. How would they have done it??? Granted much of it was simple disk error protection but it would still require you to reboot and load a monitor to view.
p.s. I think the easiest crack of all time had to be Flight Simulator in which, if you viewed the sectors it read "23 READ ERROR". You changed the 23 to a "00" (for OK) and it was cracked.
Mike
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HCL
Registered: Feb 2003
Posts: 728 |
@Pernod: Oh!! Sorry. I checked again :), this *is* sprite-crunching. I thought it looked like a normal d017-stretcher, i'm not used to counting d021-splits :). I thought that i found something new myself back in 1993-1994, but i didn't know what to use it for. And then it was well known in the 80's already. What a stopid rookey i am!
@Rost: The Crest-demo with sprite-crunching is Krestage, 1997..something, check that. But it's not the first usage of sprite-crunching, just check out Pernod's posts. |
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Rost
Registered: Oct 2004
Posts: 22 |
ok, new entry.
Sprite Crunching:
05.11.1989 Pernod / Fairlight - Rutig Banan |
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hollowman
Registered: Dec 2001
Posts: 474 |
pernod, i noticed that on pouet ( http://www.pouet.net/prod.php?which=9801 ) it says that rutig banan was released at Pepsi Hacker Conference in august 1989, i guess this info comes from scenery http://exotica.fix.no/info/scenery/online/1989.html , was the demo shown there first, or is the information there simply inaccurate? |
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pernod
Account closed
Registered: Nov 2004
Posts: 25 |
@hollowman: the three last parts of Rutig Banan were finished in the summer of 89, and perhaps also shown to some people then (I can't remember), but they weren't released until november at Light's party in Bålsta.
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WVL
Registered: Mar 2002
Posts: 902 |
How come my version of Rutig Banan only has the last 3 parts? I just checked the version in csdb, and it had 3 more parts than the version i have..
hehe.. btw, i distinctly remember checking out the code of part 4 (the shrinking Fairlight logo) and made the all border sprite zoomer I did in Design Overdose in kinda the same fashion (but easier code)...
hehehe.. routine ripping ahoy! I still cant believe i was the first one to make that, arent there any earlier examples? (Glasnosts all border zoomer is something else, imo). |
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ToD
Account closed
Registered: Dec 2003
Posts: 10 |
megajive back in oct86 was the first demo id seen with full screen sprites..
http://www.cosine.demon.co.uk/legacy/files/legacy_pack_2.zip
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Ben
Account closed
Registered: Feb 2003
Posts: 163 |
Quote: megajive back in oct86 was the first demo id seen with full screen sprites..
http://www.cosine.demon.co.uk/legacy/files/legacy_pack_2.zip
This demo also contains FLD btw! |
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Rost
Registered: Oct 2004
Posts: 22 |
@Ben: where is the FLD in MegaJive? MegaJive2 seems to be older. In the CSDb the year is 1987. mhhh..
@XrAyZ: i would say the 'Edam Nibblers' (1001,scrolltext megajive) , spread the first fullscreen sprite pictures (ESCOS).
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Ben
Account closed
Registered: Feb 2003
Posts: 163 |
@Rost: Try wiggling joystick :) BTW.. Pressing reset also gives a nice 'stretcher' :) |
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Zeus
Registered: Jun 2005
Posts: 16 |
Just as an amendment to the FLI debate: X-Rated did the 160 (cheat) splits then in their party winner "Ratio 80". |
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