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> Main > Combination with repetition algorithm |
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ManOfSteel 26 Oct 2006, 09:26
Hello,
Is there any algorithm to generate Combinations with repetition? like: 00 01 10 11 Thank you in advance. |
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26 Oct 2006, 09:26 |
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f0dder 26 Oct 2006, 09:36
If you're going to google for it, try "permutation" instead of "repetition".
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26 Oct 2006, 09:36 |
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vid 26 Oct 2006, 10:46
try to use "inc" and "dec" instructions
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26 Oct 2006, 10:46 |
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Maverick 26 Oct 2006, 12:39
also remember you need one of the new 64bit CPUs for that, even better a quad core
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26 Oct 2006, 12:39 |
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f0dder 26 Oct 2006, 12:41
Maverick: why not one of the quad-cpu dualcore intel systems, giving 8 logical CPUs? Or one of the quad-cpu dualcore with ht, giving 16 logical?
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26 Oct 2006, 12:41 |
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f0dder 26 Oct 2006, 13:43
Yeah well, PC hardware sucks. Decent timers wasn't added until APIC, and isn't really available for ring3 programmers. No generic high-performance DMA, etc.
(2D scrolling should be fine with an accelerated video card though... Even though that shouldn't have been necessary  ). |
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26 Oct 2006, 13:43 |
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Borsuc 26 Oct 2006, 14:44
do you mind recursion? it can be easily employed
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26 Oct 2006, 14:44 |
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vid 26 Oct 2006, 14:44
well, there were great scrollers on VGA with mode-X (or how was it called)
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26 Oct 2006, 14:44 |
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Maverick 26 Oct 2006, 15:12
As long as they syncronize it with the vertical refresh period then it's ok (no, I don't pretend also the horizontal, as in the Amiga and its Copper
).
But then again it's a habit: ever seen an Amiga mouse pointer? It's smooth, the PC ones are not, because once again they don't sync the sampling with the vbl. And I could go on and on. |
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26 Oct 2006, 15:12 |
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f0dder 26 Oct 2006, 15:19
It's possible to do horizontal syncing on PC as long as you don't do anything else
 - I've seen coppebars done in text mode as well. |
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26 Oct 2006, 15:19 |
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vid 26 Oct 2006, 16:16
what's "coppebar" ?
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26 Oct 2006, 16:16 |
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Madis731 27 Oct 2006, 13:23
Code:
xor eax,eax
@@:
inc eax
and eax,11b
jmp @b
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27 Oct 2006, 13:23 |
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