Method and apparatus for preserving precise exceptions in binary translated code
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United States of America Patent
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Jun 20, 2006
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app pub date -
Apr 18, 2001
filing date -
Feb 17, 1999
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Abstract
Precise exceptions handling in the optimized binary translated code is achieved by transitioning execution to the non-optimized step-by-step foreign code execution means in accordance with one of the several coherent foreign states designated during the optimized translation of the foreign code. A method to improve the operation by avoiding complete foreign state updates in the optimized code, an apparatus to track the switching between the states and a method to recompute the complete foreign state in accordance to the current state identification, execution context and additional documentation provided during the translation time are proposed.
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