Feeds

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

Another leaked Intel doc might create a stink

  • alert
  • submit to reddit

Internet Security Threat Report 2014

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. ®

Providing a secure and efficient Helpdesk

More from The Register

next story
Scrapping the Human Rights Act: What about privacy and freedom of expression?
Justice minister's attack to destroy ability to challenge state
WHY did Sunday Mirror stoop to slurping selfies for smut sting?
Tabloid splashes, MP resigns - but there's a BIG copyright issue here
DVLA website GOES TITSUP on day paper car tax discs retire
Welcome to GOV.UK - digital by de ... FAULT
Hey Brit taxpayers. You just spent £4m on Central London ‘innovation playground’
Catapult me a Mojito, I feel an Digital Innovation coming on
EU probes Google’s Android omerta again: Talk now, or else
Spill those Android secrets, or we’ll fine you
Google hits back at 'Dear Rupert' over search dominance claims
Choc Factory sniffs: 'We're not pirate-lovers - also, you publish The Sun'
EU to accuse Ireland of giving Apple an overly peachy tax deal – report
Probe expected to say single-digit rate was unlawful
Inequality increasing? BOLLOCKS! You heard me: 'Screw the 1%'
There's morality and then there's economics ...
While you queued for an iPhone 6, Apple's Cook sold shares worth $35m
Right before the stock took a 3.8% dive amid bent and broken mobe drama
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
The next step in data security
With recent increased privacy concerns and computers becoming more powerful, the chance of hackers being able to crack smaller-sized RSA keys increases.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.