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ArticlesFuture Watch


December 19 97 / Bits / Future Watch

New I2O Processors

New processor options are coming for I2O subsystems to compete with the i960 from Intel. At least one vendor, Digital Equipment, will offer an Intel alternative in 1998, and others may be on the way, too.

The port of Wind River Systems (Alameda, CA) IxWorks, the I2O real-time OS (RTOS), should be completed in the first half of 1998 for Digital's StrongArm chip. Additionally, Digital's new 21553 and 21554 PCI-to-PCI bridge chips are slated to appear early next year, providing support for 64-bit PCI cards.

The bridge chips also support independent primary and secondary address spaces, which means they don't take away from the main CPU's memory allocation in cases of I2O implementations that use a peripheral cache.

A spokeswoman for Wind River says the company is also working with vendo rs besides Digital and Intel on porting its RTOS to other processors, and Intel officials say you can expect new i960s in 1998 that offer improved scalability and throughput, but they would not comment further.


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Flexible C++
Matthew Wilson
My approach to software engineering is far more pragmatic than it is theoretical--and no language better exemplifies this than C++.

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