Method and apparatus to provide dynamic hardware signal allocation in a processor
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United States of America Patent
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Jun 16, 2009
Grant Date -
Nov 9, 2006
app pub date -
Mar 30, 2005
filing date -
Mar 30, 2005
priority date (Note) -
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Abstract
In a processor having hardware event signals, signals are dynamically allocated in a mask to indicate whether each of the respective signals is available. Program code can use the same signal for multiple non-concurrent operations. A tag for an operation, such as an I/O operation can provide signal virtualization. In one embodiment, the tag includes a signal pending mask and a received signal mask. A comparison the mask can identify when an operation is complete.
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