专利名称：System and method for program execution tracing within an integrated processor
发明人：Jeffrey Todd Bridges,Thomas K.
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Collopy,James N. Dieffenderfer,Thomas
Joseph Irene,Harry I. Linzer,Thomas Andrew
Sartorius
申请号：US08/283128
申请日：19940729
公开号：US05809293A
公开日：
19980915
专利内容由知识产权出版社提供
摘要：A system and method for tracing program code within a processor having an embedded cache memory. The non-invasive tracing technique minimizes the need for trace information to be broadcast externally. The tracing technique monitors changes in instruction flow from the normal execution stream of the code. The tracing technique monitors the updating of processor branch target register contents in order to monitor branch target flow of the code. A FIFO and serial logic circuitry is utilized to minimize the number of chip pins required to broadcast the information from the chip. The tracing technique utilizes instruction and data breakpoint debug functions to signal an external trace tool that a trace event has occurred.
申请人：INTERNATIONAL BUSINESS MACHINES CORPORATION
代理人：Steven B.Jenkins & Gilchrist Phillips
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