Since 4/14/2012 3:17:03 AM, areilly--- has written 1 articles and participated in 40 conversations. areilly--- signature: areilly---
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A couple of questions on lisp compiler/optimization art179 (3/3/2010 12:11:45 AM) comp.lang.lisp Hi there,
Much as enjoy lisp, I still spend quite a bit of my time worrying about
single-instruction details of generated C code (embedded DSP
applications). I was wondering, this morning, whether the s... Andrew
Floating point vs fixed arithmetics (signed 64-bit)5332 (3/26/2012 9:22:21 AM) comp.arch.embedded Hi friends, I am working on stellaris LM3s6965 (cortex-m3) & Keil 4.20 for data acquisition. ADC is signed 24-bit. To perform software Gain calibration I have two options, 1. 64-bit fixed width arithmeti... kiishor(31)
Working out what's possible and what's not in DSP2719 (12/19/2011 12:51:01 PM) comp.dsp Hi all, So, the background to this is that it's 11 years since I finished undergrad DSP, and haven't touched it since (RF and microwave hardware is my day job). Consequently, I'm very rusty on the theory and ... enchelmaier(2)
[OT??] {32 vs 64 bit} &/or {single vs multi core} ???636 (11/26/2011 2:02:41 AM) comp.dsp {also posted to a Linux group} In the "real world", is there a difference for an average/typical user. I'm contemplating the move from Windows to Linux. Coward that I am, I'm considering separate hardware as ... rowlett(356)
[FFT] Why is the performance so important?1332 (11/14/2011 1:22:46 PM) comp.dsp Hello DSP pros, I'm currently working on an optimized version of FFT for ARM NEON. (FHT, to be exact.) I'm neither a DSP specialist nor mathematician, and it was very hard for me to understand the way FFT wor... matrose(3)
OK, Maybe the ADA folks are right939 (10/27/2011 12:09:40 AM) comp.arch.embedded This compiles: ((adc_ping_pong) ? osc_vector : gyro_vector)[fill_vector][fill_ix] = raw_data; I have every confidence that it would work as intended in lieu of if (adc_ping_pong) { osc_vector[fill_vect... tim177(4406)
LISP AI folklore6941 (10/15/2011 8:58:30 PM) comp.ai.philosophy Those rent-a-coder programming wags over at http://dis.4chan.org/read/prog/1318706528 have launched "Occupy Comp.Lang.Lisp" with a thread unrighteously entitled, "Ask John McCarthy anything". Sorry, script k... mentifex(216)
Performance: loops and arithmetic923 (10/9/2011 2:37:44 PM) comp.lang.lisp So, once again I'm trying to assess what bottlenecks I would encounter when using CL instead of C/C++ for high-performance programming. This time, I tried to transform the following C++ program into CL: #in... lasse-usenet-2011(20)
Infinity + Infinity (or NegInfinity - NegInfinity)4943 (10/8/2011 12:54:30 AM) comp.lang.c Hello, I was just wondering what happens if "Infinity" is added to "Infinity" when it comes to floating point numbers ? And also what happens if "Negative Infinity" is added to "Negative Infinity"... ? In ... Windows7IsOK(161)
OT Why DSP consultants are (by and large) well paid18350 (9/29/2011 3:31:52 AM) comp.dsp http://cdn.videosift.com/static/Miss-USA-2011-Should-Math-Be-Taught-In-Schools/index.html?1315892583 God help us! Jerry -- Engineering is the art of making what you want from things you can get. ... jya(12866)
DrRacket and Tiny Scheme portability problem1134 (7/14/2011 8:00:31 PM) comp.lang.scheme Folks, I've just started doing my first Scheme coding ! I've got hold of DrRacket and Tiny scheme, I have DrRacket set on R5RS setting. As an exercise I decided to try implement 'while' and 'for' that would ... chris.hinsley(299)