Floating Point Error Dump Ms28
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by David Goldberg, published in the March, 1991 issue of Computing Surveys. Copyright 1991, Association for Computing Machinery, Inc., reprinted by permission. floating point error example Abstract Floating-point arithmetic is considered an esoteric subject by many people. floating point python This is rather surprising because floating-point is ubiquitous in computer systems. Almost every language has a floating point arithmetic examples floating-point datatype; computers from PCs to supercomputers have floating-point accelerators; most compilers will be called upon to compile floating-point algorithms from time to time; and virtually every operating
Floating Point Rounding Error
system must respond to floating-point exceptions such as overflow. This paper presents a tutorial on those aspects of floating-point that have a direct impact on designers of computer systems. It begins with background on floating-point representation and rounding error, continues with a discussion of the IEEE floating-point standard, and concludes with numerous examples of how floating point calculator computer builders can better support floating-point. Categories and Subject Descriptors: (Primary) C.0 [Computer Systems Organization]: General -- instruction set design; D.3.4 [Programming Languages]: Processors -- compilers, optimization; G.1.0 [Numerical Analysis]: General -- computer arithmetic, error analysis, numerical algorithms (Secondary) D.2.1 [Software Engineering]: Requirements/Specifications -- languages; D.3.4 Programming Languages]: Formal Definitions and Theory -- semantics; D.4.1 Operating Systems]: Process Management -- synchronization. General Terms: Algorithms, Design, Languages Additional Key Words and Phrases: Denormalized number, exception, floating-point, floating-point standard, gradual underflow, guard digit, NaN, overflow, relative error, rounding error, rounding mode, ulp, underflow. Introduction Builders of computer systems often need information about floating-point arithmetic. There are, however, remarkably few sources of detailed information about it. One of the few books on the subject, Floating-Point Computation by Pat Sterbenz, is long out of print. This paper is a tutorial on those aspects of floating-point arithmetic (floating-point hereafter) that have a direct connection to systems building. It consists of three loosely connected parts. The first section,
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DVD Firmware Forum Javascript Disabled Detected You currently have javascript disabled. Several functions may not work. Please re-enable javascript to access full functionality. More Ms28 Fun - I Wouldn't Post Unless Desperate! Started by snippy , Sep http://forums.xbox-scene.com/index.php?/topic/548484-more-ms28-fun-i-wouldnt-post-unless-desperate/ 18 2006 12:14 AM Page 1 of 2 1 2 Next Please log in to reply 19 replies to this topic #1 snippy snippy X-S Enthusiast Members 15 posts Posted 18 September 2006 - 12:14 AM Gday all,Spent my weekend trying to dump the firmware of my ms28 360 drive. What a frustrating time I've had. Initially I tried using the ich5 sata controller on my mainboard, a gigabyte 8ipe 1000 pro2 floating point with an intel 865 chipset.Of course further reading showed that you require a VIA sata controller chipset to dump the ms28.So off I went and purchased a pci VIA 6421A chipset sata controller, and followed the tutorial samsungv41.pdf. I started out using the ntfs for dos boot cd. Basically, I just burnt the cd, got the mtkvia (which i've now got from 3 different sources, currently using the one from the hammerxp pack) floating point error and tried to dump using mtkvia r /m orig.bin.The process I followed.Boot up machine with NTFS boot disc.Turn on 360 at dos prompt.Wait 3 or so seconds.Type mtkflash.exe r /m orig.binGot a little menu, item 2 shows up as 360 dvd rom on the 6421 controller.Before selecting "2", I powered off the 360.Selected 2, waited 10 seconds, then powered on the 360.The xbox front green light starts blinking and the flash starts dumping (the percentage starts counting) BUT, it stops at a random number between 0 and 100%.So since then, I have had a chat to people in #fw on efnet (they seem a cluey bunch!) and suggestions I have tried are. * Don't power it off at the menu - this results in no number counting up at all* use eject button to power on the 360 - works the same as turning it on, it stops somewhere between 0% and 100%* ditch the NTFS boot cd and boot directly from usb key (which I am now using,it seems quicker and easier on usb. I created the boot usb key exactly as the tutorial says) - same thing happen, stops between 0% and 100%* try a completely different computer - however i had to use the same controller card as I only have one
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