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Forums > C64 Coding > 26 clocks in a border, anything useful?
2016-12-18 08:34
oziphantom

Registered: Oct 2014
Posts: 95
26 clocks in a border, anything useful?

If you had 26 clocks in the border, could anything useful be done with the extra clocks? If you need to do a XXXX,X this could be dropped to XX,X to save an extra clock.
 
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2016-12-18 23:38
Frantic

Registered: Mar 2003
Posts: 1274
I'd do some addition!
2016-12-19 00:28
Perplex

Registered: Feb 2009
Posts: 187
Quoting Frantic
I'd do some addition!

+1
2016-12-19 01:29
Skate

Registered: Jul 2003
Posts: 451
Make some double, triple sine table lookups for your excellent dynamic raster based effect... whichever it is.
2016-12-19 08:57
HCL

Registered: Feb 2003
Posts: 652
I would say, if you have 27 clocks in the border, things would get truly interesting..
2016-12-19 09:53
Mixer

Registered: Apr 2008
Posts: 210
Let the cpu rest. Setting bits on and off all the time, it is so hard.
2016-12-19 11:41
ChristopherJam

Registered: Aug 2004
Posts: 503
Eight sprites under/over FLI
2016-12-19 13:50
Oswald

Registered: Apr 2002
Posts: 3990
risen from oblivion used 2mhz on sideborder for smth.
2016-12-19 14:21
Soren

Registered: Dec 2001
Posts: 533
Just be Crossbow/Crest and you won't need to worry about stuff ;)
2016-12-19 15:31
oziphantom

Registered: Oct 2014
Posts: 95
Quoting ChristopherJam
Eight sprites under/over FLI


ZMhz mode switches off the VIC bus access, so it will show sprites but the sprite data will be whatever the CPU was loading/storing.

Thinking about it, on a non bad line, you would be able to pull into 2mhz on the first clock of the border which would give you an extra 10 clocks to give you 36 clocks on non bad lines, or 40 clocks in 38 col mode.
2016-12-19 16:09
ChristopherJam

Registered: Aug 2004
Posts: 503
Quoting oziphantom
Quoting ChristopherJam
Eight sprites under/over FLI


ZMhz mode switches off the VIC bus access, so it will show sprites but the sprite data will be whatever the CPU was loading/storing.


Damn. I should have expected that really.
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