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oziphantom
Registered: Oct 2014
Posts: 490 |
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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Oswald
Registered: Apr 2002
Posts: 5094 |
in 26 you can make rasterbars, is that usefule for you ?
btw:
sta xxxx,x = 5 sta xx,x = 4
lda xxxx,x = 4/5 lda xx,x = 4 |
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Cruzer
Registered: Dec 2001
Posts: 1048 |
When would this ever be relevant? |
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JackAsser
Registered: Jun 2002
Posts: 2014 |
Quote: When would this ever be relevant?
+1 |
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chatGPZ
Registered: Dec 2001
Posts: 11386 |
you could perhaps put an extra clock in the border! |
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oziphantom
Registered: Oct 2014
Posts: 490 |
C128, you can enable 2Mhz mode in the border. So when you subtract the clocks to get in and out of 2Mhz mode you get 26 clocks to do stuff. Or if you drop the 38 col you would get 30 clocks. |
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Cruzer
Registered: Dec 2001
Posts: 1048 |
Ah, cool. Sorry for my ignorance. 🎅 |
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chatGPZ
Registered: Dec 2001
Posts: 11386 |
you might be able to cram a sample player in there.... the question is a bit generic though, hard to give an answer without knowing what else you are planning to do :) |
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Frantic
Registered: Mar 2003
Posts: 1648 |
I'd do some addition! |
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Perplex
Registered: Feb 2009
Posts: 255 |
Quoting FranticI'd do some addition!
+1 |
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Skate
Registered: Jul 2003
Posts: 494 |
Make some double, triple sine table lookups for your excellent dynamic raster based effect... whichever it is. |
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HCL
Registered: Feb 2003
Posts: 728 |
I would say, if you have 27 clocks in the border, things would get truly interesting.. |
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Mixer
Registered: Apr 2008
Posts: 452 |
Let the cpu rest. Setting bits on and off all the time, it is so hard. |
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ChristopherJam
Registered: Aug 2004
Posts: 1409 |
Eight sprites under/over FLI |
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Oswald
Registered: Apr 2002
Posts: 5094 |
risen from oblivion used 2mhz on sideborder for smth. |
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Soren
Registered: Dec 2001
Posts: 547 |
Just be Crossbow/Crest and you won't need to worry about stuff ;) |
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oziphantom
Registered: Oct 2014
Posts: 490 |
Quoting ChristopherJamEight 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. |
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ChristopherJam
Registered: Aug 2004
Posts: 1409 |
Quoting oziphantomQuoting ChristopherJamEight 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. |
