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Warnock
Registered: Sep 2007
Posts: 28 |
DYCP and DYBP
Can someone post the sorce for these two routine? You can
explain how it works in theory all day and I still won't get the message. I need to see the routine in action. That's how I learned the various scrolling routines I have to date. I had a double dycp routine but my library was lost during my move to Va back in 1996.
Thanks,
Warnock/Style
P.S. - Seems my group is too busy to help me out.
Grrrrrrrrr. |
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Moloch
Registered: Jan 2002
Posts: 2928 |
Quote: dybp represented a different y-position every two bits wide (4 per char), while dypp was for every eight bits (8 per char). at least in the ntsc world.
dybp was more efficient and visually looked just as good in my opinion. some of those 1x1 dypp scrollers were almost impossible to read due the text being stretched out so much.
Yes, quite true about the impossible to read scrolltext.
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Testa
Account closed
Registered: Oct 2004
Posts: 197 |
once i coded a scroll with different y pos each 2 bits..
i had the idea to make this one as big as posible, so i made it 3 chars high so you can use a 3x3 charset... ofcourse i needs to much rastertime to make it 40 chars wide so my scroller was 20 chars wide and disappears behind some graphics (sprites).. it's some time ago i cant remember if the routine uses one or two frames to update.. but i think two...(25 fps) nice to code on a rainy sunday midday...
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
Quoting Clarence@Cruzer, I have found the Triangle demo with the (first?) DYSP abbreviation. :)
PhotonDYSP
Yeps, 'Photon DYSP' introduced the term but it didn't actually do what it said it did. The first real DYSP was this demo:
Real D.Y.S.P./Triton
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Codey
Registered: Oct 2005
Posts: 79 |
Quote: Quoting Clarence@Cruzer, I have found the Triangle demo with the (first?) DYSP abbreviation. :)
PhotonDYSP
Yeps, 'Photon DYSP' introduced the term but it didn't actually do what it said it did. The first real DYSP was this demo:
Real D.Y.S.P./Triton
actually, The Larch 3 has a pretty nice sized 1x1 side border dypp (the demo refers to it as a dypp) which is controllable with the joystick. considering the speed it runs at, i always assumed the chars were pre plotted at every unique position in the sin wave. imo, this is one the best technical demos ever being it was released in 1989. |
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Cruzer
Registered: Dec 2001
Posts: 1048 |
It's animated.
And if a DYSP isn't in sideborder but only over rastersplits, what do you call it? Pretty sure I've seen routines like that, which were referred to as DYSPs.
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TNT
Account closed
Registered: Oct 2004
Posts: 189 |
Quote: It's animated.
And if a DYSP isn't in sideborder but only over rastersplits, what do you call it? Pretty sure I've seen routines like that, which were referred to as DYSPs.
D.Y.S.P.I.D.C.E. for example. |
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tlr
Registered: Sep 2003
Posts: 1790 |
Quote: D.Y.S.P.I.D.C.E. for example.
and this: 6566+
(predates the term DYSP though)
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Cruzer
Registered: Dec 2001
Posts: 1048 |
Finally got to check out the linked demos. Quite interesting, don't remember having seen any of them before. I always love it when someone claims to have done something "impossible", but cheats, and someone else responds by doing it properly. Total pwnage, as the kids say.
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Warnock
Registered: Sep 2007
Posts: 28 |
Thanks Oswald. I tried the previously posted routine, which I had downloaded before. There were a few problems with the code. The data tables had to be re-aligned to
fit turbo assembler. The entire source was in capital letters. (ha ha) The scrolltext is limited to 64 bytes in length. I'll try Oswald's source posted here. I hope it's a little more user-friendly.
DYBP - is a blit plotting version of the dycp. More detailed.
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Cruzer
Registered: Dec 2001
Posts: 1048 |
DYPPINATOR ftw
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