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Forums > C64 Coding > Holy Grails
2018-03-18 10:10
Krill

Registered: Apr 2002
Posts: 2850
Holy Grails

I've been wondering about them, with some having been finally discovered, others not yet, and some probably going to remain in the realm of the impossible forever.

I'm speaking of things like:
- 320x200x16 graphics without restrictions
- Crash-free all-direction hardware scrolling
- Digi replay of 8-bit samples at one register write per sample and without requiring cycle accuracy

on standard vanilla hardware, of course.

Some examples of discovered grails are:
- Cube rotating at 50 fps about 3 axes
- The 9th sprite (with some restrictions)
- On-the-fly standard GCR block read+decode+checksumming

As for definition, they all satisfy some measure of being perfect or optimal or being possible after all, with no further improvements required, possible or necessary. But i'm not so sure if that definition holds water with regard to some of the examples i listed. :D

The question is, what other Holy Grails are there, already discovered or still elusive?
What are your pet grails you've been chasing after for decades or have found eventually? :)
 
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2018-03-26 11:12
JackAsser

Registered: Jun 2002
Posts: 1989
Quote: I would add "free-rotating tunnel" to the list. :)

Yeah! FD-tunnel. I think Oswalds 8x8 attempt is the closest so far
2018-03-26 12:39
Oswald

Registered: Apr 2002
Posts: 5022
Quote: Yeah! FD-tunnel. I think Oswalds 8x8 attempt is the closest so far

that's by Bubis, and in 4x4 :)
2018-03-26 18:35
Krill

Registered: Apr 2002
Posts: 2850
Quoting Oswald
that's by Bubis, and in 4x4 :)
Not calculated to 8x8 and then interpolated to 4x4? =)
2018-03-26 18:49
Oswald

Registered: Apr 2002
Posts: 5022
Quote: Quoting Oswald
that's by Bubis, and in 4x4 :)
Not calculated to 8x8 and then interpolated to 4x4? =)


exactly.
2018-03-26 22:09
JackAsser

Registered: Jun 2002
Posts: 1989
Quote: that's by Bubis, and in 4x4 :)

Oh, sorry Bubis! :D
2018-03-27 09:42
CreaMD

Registered: Dec 2001
Posts: 3035
True Hires/MultiColor bitmap split (without visible gaps to cover bugs) / text wrap around images. Counts as a holy grail to me. See the animated gif screenshot for what I mean.

Dawn #1
2018-03-27 10:37
Oswald

Registered: Apr 2002
Posts: 5022
graffity did mcol and gfxmode split way earlier than this.
2018-03-27 11:58
Krill

Registered: Apr 2002
Posts: 2850
Maybe Holy Grails and world-firsts aren't quite the same thing. :)
2018-03-27 12:02
Oswald

Registered: Apr 2002
Posts: 5022
btw VIC does some weird stuff when changing from mc to hires, or when making gaps with d016, anyone ever used those? holy grail :)
2018-03-27 12:35
Krill

Registered: Apr 2002
Posts: 2850
I think Crossbow used something like that to have more than 320 pixels worth of char/bitmap graphics per rasterline.
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