64 Architecture. Congatec conga-TS170

8.2.4

8.2.5

Intel

®

64 Architecture

The formerly known Intel ® Extended Memory 64 Technology is an enhancement to Intel ® ’s IA-32 architecture. Intel ® 64 is only available on Intel ® processors and is designed to run with newly written 64-bit code and access more than 4GB of memory. Processors with Intel ® 64 architecture support 64-bit-capable operating systems from Microsoft, Red Hat and SuSE. Processors running in legacy mode remain fully compatible with today’s existing 32-bit applications and operating systems

Platforms with Intel ® 64 can be run in three basic ways :

1. Legacy Mode: 32-bit operating system and 32-bit applications. In this mode no software changes are required, however the benefits of

Intel ® 64 are not utilized.

2. Compatibility Mode: 64-bit operating system and 32-bit applications. This mode requires all device drivers to be 64-bit. The operating system will see the 64-bit extensions but the 32-bit application will not. Existing 32-bit applications do not need to be recompiled and may or may not benefit from the 64-bit extensions. The application will likely need to be re-certified by the vendor to run on the new 64bit extended operating system.

3. 64-bit Mode: 64-bit operating system and 64-bit applications. This usage requires 64-bit device drivers. It also requires applications to be modified for 64-bit operation and then recompiled and validated.

Intel ® 64 supports:

• 64-bit flat virtual address space

• 64-bit pointers

• 64-bit wide general purpose registers

• 64-bit integer support

• Up to one Terabyte (TB) of platform address space

You can find more information about Intel ® 64 Technology at: http://developer.intel.com/technology/intel64/index.htm

Intel

®

Virtualization Technology

Virtualization solutions enhanced by Intel ® VT will allow a Xeon and Core™ i7/i5/i3 platform to run multiple operating systems and applications in independent partitions. When using virtualization capabilities, one computer system can function as multiple “virtual” systems. With processor and I/O enhancements to Intel ® ’s various platforms, Intel ® Virtualization Technology can improve the performance and robustness of today’s software-only virtual machine solutions.

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