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Domain: edn.com
Stories and comments across the archive that link to edn.com.
Stories · 6
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ARM64 Vs ARM32 -- What's Different For Linux Programmers? (edn.com)
New submitter DebugN writes: When ARM introduced 64-bit support to its architecture, it aimed for Linux application compatibility with prior 32-bit software on its architecture. But for Linux programmers, there remain some significant differences that can affect code behavior. If you are a Linux programmer working with — or will soon be working with — 64-bit, you might want to know what those differences are, and this useful EDN article says it all. -
Toyota's Killer Firmware
New submitter Smerta writes "On Thursday, a jury verdict found Toyota's ECU firmware defective, holding it responsible for a crash in which a passenger was killed and the driver injured. What's significant about this is that it's the first time a jury heard about software defects uncovered by a plaintiff's expert witnesses. A summary of the defects discussed at trial is interesting reading, as well the transcript of court testimony. 'Although Toyota had performed a stack analysis, Barr concluded the automaker had completely botched it. Toyota missed some of the calls made via pointer, missed stack usage by library and assembly functions (about 350 in total), and missed RTOS use during task switching. They also failed to perform run-time stack monitoring.' Anyone wonder what the impact will be on self-driving cars?" -
Clues That Apple's Bought Another Processor Design House
According to Ars Technica: "Apple's gigantic bankroll may be burning a hole in its pocket. Almost two years after purchasing PowerPC designer P.A. Semi, Apple appears to have snapped up ARM design house Intrinsity. According to a report that first appeared on electronista, a number of engineers at the company have indicated that they are now or soon will be employed by Apple. Some of them have even gone as far as to change their LinkedIn profiles, with one reverting it, possibly out of fear of drawing the wrath of his new, secretive employer." Updated 20100404 1:15 GMT Brian Dipert points out the earlier coverage at EDN, from which both of the above reports draw. -
Apple Snags Former Xbox Exec
nandemoari sends along word that Apple has picked up Richard Teversham, a senior Executive from Microsoft's European Xbox operations, ending his 15 years of service to Redmond. Some press accounts assume that Teversham's role may lie in beefing up the games scene on the iPhone and iPod Touch. Forbes goes farther, opining that Apple "appears to be preparing an all-out assault on the handheld gaming market." Other reporting associates the hire with Apple's recent buildout of chip-design expertise. -
CFLs Causing Utility Woes
dacut writes "We've seen compact fluorescent lamps start to take over shelf space at the local hardware store. Replacing a 60 watt incandescent with a 13 watt CFL seems like a great savings, though many consumers are disappointed with the slow warm-up times, lower-than-advertised lifetimes, and hassles of disposing the mercury-containing bulbs. Now EDN reports they may use more energy than claimed due to their poor power factor. Mike Grather, of Lumenaire Testing Laboratory, 'checked the power factor for the CFLs and found they ranged from .45 to .50. Their "real" load was about twice that implied by their wattage.' The good news: you're only billed for the 13 watts of real power used. The bad news: the utilities have to generate the equivalent of 28 watts (that is, 28 VA of apparent power for you EEs out there) to light that bulb. Until they fix these issues, I'll hold on to my incandescents and carbon arc lamps, thanks." -
Geek Christmas Gift Ideas
Anonymous Coward writes "EDN magazine for December 12 has an article on Christmas gifts for techies. The best are a mouse pad that uses your hand as the mouse and Hokey Spokes (Why didn't I think of that?)." Getting desperate for ideas yet? I'm currently in the juggling fedex tracking numbers phase of christmas ;)