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Messages - bwang
Pages: 1 ... 17 18 [19] 20 21 ... 44
271
« on: July 26, 2010, 09:18:08 pm »
Here's mine.
Linux is very good at pretending to be Windows.
272
« on: July 26, 2010, 09:13:34 pm »
Here's a very simple "cyclical" algorithm: http://en.wikipedia.org/wiki/Pollard%27s_rho_algorithmI do not know of any recursive algorithms. In case anyone is interested, I'll attach my Java QS implementation. It implements the sieving step from the QS, and is utterly useless (because Java is inherently slow) except for educational purposes. It builds the matrix, but I haven't implemented block Lanczos yet.
273
« on: July 26, 2010, 08:32:07 pm »
OK, I got tilemapping working. I also replaced a bunch of subtractions and a division in the loop with a table lookup, so its even faster now. The tile map is rather boring at the moment, since I don't have any good tiles to work with  So I just stole a wall texture from Ncaster.
274
« on: July 26, 2010, 04:30:25 am »
Why can't we choose several options in the poll? Many people dual/triple boot...
I use XP and Ubuntu (10.04) on the desktop and Vista on the laptop.
I was trying to change it to allow multiple votes, but I couldn't find the option. If a staff member wishes to edit it for me, go ahead.
275
« on: July 26, 2010, 03:40:24 am »
This one is courtesy of calc84maniac:
void clear_buffer(char* buffer)
{
__asm__ __volatile__ (
"mov r1,#120\n\t"
"mvn r2,#0\n\t"
"mvn r3,#0\n\t"
"mvn r4,#0\n\t"
"mvn r5,#0\n\t"
"mvn r6,#0\n\t"
"mvn r7,#0\n\t"
"mvn r8,#0\n\t"
"mvn r9,#0\n\t"
"mvn r10,#0\n\t"
"mvn r11,#0\n\t"
"1:\n\t"
"stmia %0!,{r2-r11}\n\t"
"stmia %0!,{r2-r11}\n\t"
"stmia %0!,{r2-r11}\n\t"
"stmia %0!,{r2-r11}\n\t"
"stmia %0!,{r2-r11}\n\t"
"stmia %0!,{r2-r11}\n\t"
"stmia %0!,{r2-r11}\n\t"
"stmia %0!,{r2-r11}\n\t"
"subs r1,r1,#1\n\t"
"bne 1b\t"
:
: "r"(buffer)
: "r1","r2","r3","r4","r5","r6","r7","r8","r9","r10","r11"
);
}
It clears a screen buffer very, very quickly.
NOTE: It can only clear a screen buffer, not a buffer of arbitrary size.
Edit by calc84maniac: potentially harmful typo
276
« on: July 26, 2010, 01:38:05 am »
Phew, I think I didn't miss anything big  So, what OS do you use? I have various Ubuntus and Linux distros, with my netbook dualbooting 7.
277
« on: July 26, 2010, 12:19:44 am »
Yeah, this turned out to be a lot more usable than I thought it would be. I should add tile mapping, so then I can write F-Zero Nspire Edition  Blarg, except I have several other projects I'm thinking about, and I'm busy with real life
278
« on: July 25, 2010, 11:03:31 pm »
Here's a small video of it in action on hardware, since I've given up trying to get screenshots to work.
279
« on: July 25, 2010, 05:23:28 pm »
w00t! The lobster one is winning 18 Yes to 6 No. The Lobsters shall soon dominate the world!
280
« on: July 25, 2010, 04:17:08 pm »
I converted everything to fixed point, and now I can draw twice the number of pixels and still get a 25% speed gain
Fixed point is amazing; I think my next project will be converting Ncaster to fixed point.
Very nice! I wonder how much of a speed gain Ncaster will get from this?
Probably ~2x.
281
« on: July 25, 2010, 04:14:34 pm »
Right. I mis-read your post
282
« on: July 25, 2010, 01:45:45 am »
Nice! This is certainly useful.
283
« on: July 24, 2010, 10:58:40 pm »
I think its a good idea. Its not advertising, and would get more members. I'm all for including "Netham45 is a Lobster", though
284
« on: July 24, 2010, 07:02:04 pm »
I'm not an ASM programmer, so I'm not sure whether the Nspire has an FPU.
285
« on: July 24, 2010, 07:00:05 pm »
Beautiful! I can't wait for this to be finished!
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