 | | Re: 8-bit floating-point number representations?
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(...) I've been a pretty serious geek, especially with low level stuff like this. My first real job involved developing a Fortran style formatted I/O for the Apple II which involved digging into the the internal guts of Applesoft BASIC so that we (...) (24 years ago, 4-Jan-01, to lugnet.off-topic.geek)
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| | Possible virus in "complete.exe"
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Bad news: According to Bas Oskamp <aldjia@freeler.nl> the LDraw parts distribution file, "complete.exe", may contain a virus. I have temporarily made the file unavailable on the ldraw.org web site. Meanwhile the parts distribution is available as a (...) (24 years ago, 4-Jan-01, to lugnet.announce, lugnet.cad, lugnet.off-topic.geek)
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| | Re: 8-bit floating-point number representations?
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(...) Wow, Frank, I didn't know you geeked like that! All right! (...) It past my bedtime, so I'll have to think more about it another time, but you've definitely given me hope that it could be done pretty efficiently. As a bonus in this case, the (...) (24 years ago, 4-Jan-01, to lugnet.off-topic.geek)
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| | Re: Bitstring vector to list conversion in Perl5
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(...) $veclength = length($v) * 8; It isn't precise, but it's fast -- and a few bits of slop would be perfectly OK here since the slop would be 0-bits. :-) (...) Well, plus, map{} is also almost always slower than looping (especially with use (...) (24 years ago, 4-Jan-01, to lugnet.off-topic.geek)
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| | Re: 8-bit floating-point number representations?
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(...) After thinking about this, I realized most compact binary floating point forms don't allow denormalized numbers. The reason is that if one assures that all numbers are normalized, the bit to the left of the decimal point is always a 1, and (...) (24 years ago, 4-Jan-01, to lugnet.off-topic.geek)
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| | Re: News search function reactivated (was: News search function temporarily disabled)
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(...) I probably couldn't, no, but a very experienced Java programmer and a good JVM machine could conceivably do better than C. (It's not unheard of for Java to be faster than C for certain types of things.) The big hits would probably be the JVM (...) (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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| | Re: Bitstring vector to list conversion in Perl5
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(...) well, I can think of several ways of doing it, but since $v might be millions of bits long, we don't really want to get the full list in memory ever. So I guess the simplest way would be to run through the vector, indexing the 1s: (...) (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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| | Re: 8-bit floating-point number representations?
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(...) Hmm, 8 bit floating point numbers can't implement a very large range of numbers. How many bits of exponent were you planning on? I think conversion would probably actually be pretty easy since you will just take e bits of the exponent from the (...) (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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| | Re: News search function reactivated (was: News search function temporarily disabled)
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(...) Of course I've heard of situations where an interpreter outdid hand crafted assembler. This can occur if the portion of the interpreter necessary to run your code fits in the code cache and the byte codes fit in the data cache when the hand (...) (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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| | Re: Suggested CD-R(W) Burner programs
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(...) CDRWIN isn't the most user-friendly program in the world, and it really isn't designed (or used much) for backing up files. It's mainly a CD copying program. As a matter of fact it was originally known as PSXCopy - I'll leave it to your (...) (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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| | Re: Digital Camera
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(...) 340mb, yeah. I'm thinking of getting a larger Microdrive when I get a PocketPC unit that supports them, but I will still use the 340mb for the camera unless I have a storage "emergency". (24 years ago, 3-Jan-01, to lugnet.general, lugnet.off-topic.geek)
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| | Re: News search function reactivated (was: News search function temporarily disabled)
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(...) Aah, you definately couldn't have done that in Java. Of course the ability to declare a couple register variables helps too. KL (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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| | Re: Suggested CD-R(W) Burner programs
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(...) Nero worked fine...I'm quite relieved I wasted $0.17 instead of $17... --Bram (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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| | Re: Suggested CD-R(W) Burner programs
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(...) It seems to have worked. However, I couldn't figure out how to just copy files to a CD using CDRWIN, so I used the "File Backup and Tools" window. I guess I now have a CD with an image of the file I copied (DivX movie--The Rock, 690MB). I was (...) (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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| | Re: Suggested CD-R(W) Burner programs
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(...) Yes...a 933 MHz 384 RAM computer that came with a 125 watt power supply :( At least they replaced that for free... (...) check when it's finished, though. --Bram (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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| | Re: Digital Camera
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You must have a smaller microdrive ;-) I can fit over 1000 on my Casio 2800 on the 1Gig microdrive at max size. (...) -- | Tom Stangl, Technical Support Netscape Communications Corp | Please do not associate my personal views with my employer (24 years ago, 3-Jan-01, to lugnet.general, lugnet.off-topic.geek)
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| | Bitstring vector to list conversion in Perl5
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Anyone know of a super-efficient way in Perl5 to convert a sparse bitstring vector to a list of integer-offset values (just the 1-bits) in Perl5? That is, if you had some $v that was created like so: my $v; my @n = (...some sorted sparse list of (...) (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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| | 8-bit floating-point number representations?
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Anyone know of a good C library that efficiently implements conversion from a processor-native 'double' floating-point precision number to some standard form of an 8-bit floating-point number and back? And a Perl5 library to go with it? An array of (...) (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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| | Re: News search function reactivated (was: News search function temporarily disabled)
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(...) I like Java. But this really needed to be close to the metal and generate code that would fit in the L1 cache for the non-memory-bus-bound portions of the loops. The GNU C compiler is incredible. (...) It's the best C code I've written in 12 (...) (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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| | Re: News search function reactivated (was: News search function temporarily disabled)
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(...) All geeks capitulate sooner or later on perl vs C. Of course Larry (and many others I work with) would tell you to write that stuff in Java but that would be a step backwards. Congratulations! Of course it's stability depends greatly on your (...) (24 years ago, 3-Jan-01, to lugnet.off-topic.geek)
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