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專利授權區
專利名稱(英)	Trace compression method for debug and trace interface wherein differences of register contents between logically adjacent registers are packed and increases of program counter addresses are categorized
專利家族	中華民國：I406173 美國：7,861,070
專利權人	國立清華大學 100.00%
發明人	謝銘昌,何彥儒,黃稚存
技術領域	資訊工程

專利摘要(英)
The present invention proposed a trace compression method for a debug and trace interface of a microprocessor, in which the debug and trace interface is associated with a plurality of registers for storing data. The trace compression method comprises the steps of: (1) finding register content of each of the registers in a first cycle and register content of each of the registers in a second cycle, in which the second cycle is next to the first cycle; (2) calculating difference of the register content of each of the registers in the second cycle and the register content of each of the registers in the first cycle; and (3) packing the differences of the register contents into data trace packets, in which the differences of the register contents of adjacent registers are condensed into a single data trace packet when the differences of the register contents of the adjacent registers are zeroes.

專利摘要(英)

The present invention proposed a trace compression method for a debug and trace interface of a microprocessor, in which the debug and trace interface is associated with a plurality of registers for storing data. The trace compression method comprises the steps of: (1) finding register content of each of the registers in a first cycle and register content of each of the registers in a second cycle, in which the second cycle is next to the first cycle; (2) calculating difference of the register content of each of the registers in the second cycle and the register content of each of the registers in the first cycle; and (3) packing the differences of the register contents into data trace packets, in which the differences of the register contents of adjacent registers are condensed into a single data trace packet when the differences of the register contents of the adjacent registers are zeroes.

聯絡資訊
承辦人姓名	李曉琪
承辦人電話	03-5715131 #31061
承辦人Email	hsiaochi@mx.nthu.edu.tw