Breakpointing on register access events or I/O port access events
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United States of America Patent
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Aug 30, 2011
Grant Date -
Sep 27, 2007
app pub date -
Nov 3, 2006
filing date -
Mar 13, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A data processing system is provided with breakpoint circuitry having breakpoint registers which can specify a variety of different types of breakpoint conditions. These breakpoint conditions include register access breakpoints which are triggered when an access is made to either a general purpose register or a configuration register. The breakpoints can also include input/output port access breakpoints which are triggered when an access is made to a predetermined one of a plurality of input/output ports by an appropriate program instruction or in another way.
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