Java hardware accelerator using thread manager
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United States of America Patent
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-
Nov 30, 2004
Grant Date -
Feb 14, 2002
app pub date -
May 25, 2001
filing date -
Dec 8, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A Java accelerator includes a hardware unit associated with the CPU portion, the hardware unit converting stack-based instructions, such as Java bytecodes, into register-based instructions such as the instructions which are native to the CPU. A thread lifetime unit in the hardware unit is used to maintain a count of the number of bytecodes to be executed while an active thread is loaded into the system. Once this count reaches zero or below, the operation of a/the thread in the system is stopped and the Java Virtual Machine loaded into the CPU portion in order to implement its thread manager. Additionally, a single step unit in the hardware unit allows the production of debugger indications after each stack-based instruction.
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