#garfield | Logs for 2016-03-21

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[14:11:16] <any92571456> i think, as hackers, looking for speed in 16x16 mulitpliers, we are do binary multipliers wrong
[14:12:12] <any92571456> i think each bit position in the adder layer should be a 1Megx(anything over 4)
[14:13:41] <any92571456> if correct, this means a pre-programmed ram array of 32 such chips would do all the adds in 0.6us, or 1.6 million multiplies per sec
[14:14:13] <any92571456> using 20 ns srams
[14:16:00] <any92571456> 32 chips at 1.5 inches of pcb per chip = 48 sq inches, or 4.8x10 inch card , with the shifters on the opposite side
[14:16:29] <any92571456> standing the rams up on edge as sip modules would shrink the size drastically
[14:18:07] <any92571456> for time scale, 650ns means it would multiply a 16x16 in 3/4 of one clock cycle of a 1Mhz 6502
[14:18:21] <any92571456> that is all
[21:25:49] * katsmeow wavers
[21:32:24] <katsmeow> so for a 16x16 multiplier, if you start with four 64kx16 multiplier lookups in parallel to make 4 partials, you need only 24 adders to get the 32bit result
[21:50:56] <rue_shop2> kat!
[21:51:17] <katsmeow> rue!
[21:51:18] <katsmeow> ouch
[21:52:16] <rue_shop2> you know how to win a war against two enemies?
[21:53:08] <katsmeow> stay ut from between them?
[21:53:17] <katsmeow> http://www.ebay.com/itm/New-1200W-20A-DC-Converter-Boost-Step-up-Power-Supply-Module-IN-8-60V-OUT-12-83V-/262346708927
[21:53:36] <rue_shop2> partly, yes, let them take each other out as much as they can, then pick off who's left
[21:54:00] <rue_shop2> katsmeow, do you know what people are using those supplies for? I found a lot of them
[21:54:11] <rue_shop2> usually something like 260VDC to 12DC
[21:54:15] <rue_shop2> or vise versa
[21:54:26] <katsmeow> solar to battery
[21:54:44] <rue_shop2> yea, ok
[21:54:53] <katsmeow> solar cells have a very wide ranging output voltage, batteries need a rather controlled volt and current
[21:55:08] <rue_shop2> ARG, only 1 screeeeeeen, neeeeed more space!!!!
[22:03:46] <katsmeow> http://www.ebay.com/itm/DC-DC-Adjustable-Boost-Buck-Step-Down-Up-Converter-XL6009-Solar-Voltage-Module/261813576458
[22:05:31] * katsmeow sends rue a whole roll of window screen
[22:06:16] <katsmeow> 4ft x 14ft , 168" diagonal screen
[22:10:34] <katsmeow> oh my dog that's a otta ......
[22:10:40] <katsmeow> lotta
[22:24:16] <rue_shop2> ok have it dump the intermediate positions...
[22:25:57] <rue_shop2> arg, so how does this work again
[22:26:14] <rue_shop2> I have an input buffer, and output buffer, and two transformation systems
[22:28:28] <rue_shop2> arg, I was evolving so fast as I wrote these 3 programs that half of them need all the new stuff carried forward
[22:29:22] <rue_shop2> hmm, its doing a 1:1 transform from the trainer to the arm
[22:30:06] <rue_shop2> oh there are 3 transforms
[22:30:23] <rue_shop2> one is an input transform, one is a copy transform, and one is an output transform
[22:31:56] <rue_shop2> transCalc() comes from transBuffer
[22:32:30] <rue_shop2> every buffer has an input and an output
[22:34:41] <katsmeow> have you considered renting the 3D printer to do special custom easter egg printing?
[22:35:09] <rue_shop2> ?
[22:35:39] <rue_shop2> when is easter anyhow?
[22:36:01] <katsmeow> i dunno
[22:55:45] <katsmeow> afk a few
[23:08:55] <katsmeow> bak
[23:37:30] <katsmeow> http://www.ebay.com/itm/1000-PCS-PANASONIC-ECEV1CA101WP-CAPACITORS-/331806996440
[23:37:40] <katsmeow> 100u 16v
[23:37:45] <katsmeow> $4
[23:38:53] <rue_shop2> +
[23:39:07] <rue_shop2> $38.40 USPS Priority Mail International | See details
[23:39:47] <rue_shop2> hmm smt
[23:40:17] <rue_shop2> oo they are SMT cans
[23:40:26] <rue_shop2> danger will robinson! danger!
[23:42:00] <katsmeow> ?
[23:42:21] <rue_shop2> leaky bad caps
[23:42:23] <katsmeow> i see smt cans everywhere, even in my sleep
[23:42:28] <katsmeow> o
[23:45:05] <rue_shop2> 1, 793.000000, 480.000000, 750.000000, 376.000000, 761.000000, 903.000000
[23:45:18] <rue_shop2> format is <time>, <angle>, <angle>,...
[23:45:33] <rue_shop2> the angle should be between -90 and +90 degrees
[23:47:05] <rue_shop2> oh, I had the input of the input buffer, I need the input of the output buffer
[23:47:09] <rue_shop2> aAAAaAAaH
[23:48:06] <katsmeow> (1) CTHS36B TOWER CAMERA REFURB - CAMERA ONLY ; $4 ; TOWER NOT INCLUDED
[23:48:18] <rue_shop2> haha
[23:49:42] <rue_shop2> 1, 26.987587, -8.250000, 3.472008, -0.177000, 52.016010, 21.189983
[23:49:44] <rue_shop2> much better
[23:51:27] <rue_shop2> sweeet!
[23:51:36] <rue_shop2> recording points into a motion file is working
[23:53:23] <katsmeow> 360 pcs 68B45 $40 ; cga video, iirc
[23:53:33] <katsmeow> ntsc only
[23:57:51] <rue_shop2> wow
[23:58:03] <rue_shop2> it could do some basic graphics too couldn't it?
[23:58:33] <katsmeow> possibly