Feeds

Intel EPIC roadmap attempts to unite IA-32 and PA-RISC

Another leaked Intel doc might create a stink

  • alert
  • submit to reddit

Secure remote control for conventional and virtual desktops

An Intel downloadable document has revealed more about its EPIC 64-bit architecture than most of us would want to know. The document, written by Intel fellow John Crawford and HP lead architect Jerry Huck, goes into massive detail about the future shape of software to come. Currently, according to the presentation, mispredictions limit performance and small blocks restrict code scheduling freedom. Then follows an argument about so-called "big endian" and "little endian" architecture -- one which the 64-bit Alpha architecture seems to circumvent. "Branching is a barrier," proclaims the joint presentation, and load delays are compounded by machine widths. The explicit parallelism that HP and Intel talkabout will make it explicit in machine code, rather than in software. Here, Intel and HP talk about their "Three Es" -- Expose, Enhance and Exploit. Both IA-32 and PA-RISC will use EPIC technology, according to the leaked presentation. According to HP and Intel, explicit parallelism will break through the CISC and RISC argument, by destroying sequential execution. EPIC will use one basic block and the new compiler will give a larger scheduling scope, with predication in nearly all instructions. Half of all branches will be removed, according to Intel and HP. Both companies use a classic chess board scene to show that they have the answer to solving the Big Endian-Little Endian problem. In their view, "speculation" takes up nine cycles with three potential mispredicts, while "predication" takes up seven cycles with only one potential misdirect. The document is on Intel's ftp download site. ®

Website security in corporate America

More from The Register

next story
Phones 4u slips into administration after EE cuts ties with Brit mobe retailer
More than 5,500 jobs could be axed if rescue mission fails
JINGS! Microsoft Bing called Scots indyref RIGHT!
Redmond sporran metrics get one in the ten ring
Driving with an Apple Watch could land you with a £100 FINE
Bad news for tech-addicted fanbois behind the wheel
Murdoch to Europe: Inflict MORE PAIN on Google, please
'Platform for piracy' must be punished, or it'll kill us in FIVE YEARS
Phones 4u website DIES as wounded mobe retailer struggles to stay above water
Founder blames 'ruthless network partners' for implosion
Found inside ISIS terror chap's laptop: CELINE DION tunes
REPORT: Stash of terrorist material found in Syria Dell box
Sony says year's losses will be FOUR TIMES DEEPER than thought
Losses of more than $2 BILLION loom over troubled Japanese corp
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.