Data processing having incircuit emulation function

Details Data processing having incircuit emulation function Data processing having incircuit emulation function

1995-05-01

1996-09-24

Bowler, Alyssa H.

Boots, shoes, and leggings

395375, 39549701, 3642318, 3642432, 3642454, 364260, 364DIG1, G06F 100

Patent

active

055600360

ABSTRACT:
An improved data processor includes a high-speed memory that functions as a data cache during normal operation and as a trace memory to debug software in an in-circuit emulation mode. A register counts the number of storage location and overflows when a predetermined number is exceeded to cause an exception which transfers information off-chip from the trace memory. In one embodiment a starting address is stored and compared to a program counter of an instruction completely executed in the execution unit to begin the tracing.

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patent: 5193205 (1993-03-01), Matsuo
patent: 5287483 (1994-02-01), Utsumi

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