Emulated branch effected by trampoline mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jan 7, 2003
Issued Date -
N/A
app pub date -
Mar 8, 2000
filing date -
Oct 13, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A computer system includes a processor for executing a program and an interruption handler from a memory. The processor includes an instruction pointer indicating a memory location of a current executing instruction. The processor executes a trampoline check instruction in the program which tests a condition and if the condition is true, causes an interruption and supplies an address displacement. The interruption handler responds to the interruption and restarts execution of the program at a restart point indicating a memory location of a special handler in the program. The restart point is a sum of the address displacement and a value of the instruction pointer at the time of the interruption. If the condition is false, normal control flow of the program is continued.
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