The IA-64 System Architecture - DIG64
The IA-64 System Architecture - DIG64
The IA-64 System Architecture - DIG64
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Interruption Features<br />
l Low interruption latency<br />
– Interruption delivery causes single pipeline break<br />
– Key state captured in on-chip registers<br />
l State-save controlled by system software<br />
– Software makes performance/nesting trade-off<br />
– Shared mechanism for <strong>IA</strong>-<strong>64</strong>/<strong>IA</strong><br />
<strong>64</strong>/<strong>IA</strong>-32 interruptions<br />
l Efficient handler execution<br />
– Interruption vector table (IVT) contains code for<br />
interrupt service routine<br />
Provides Fast And Flexible Interruptions<br />
For Large I/O Intensive Applications<br />
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