Data processing: software development – installation – and managem – Software program development tool – Translation of code
Patent
1999-05-14
2000-08-22
Hafiz, Tanq R.
Data processing: software development, installation, and managem
Software program development tool
Translation of code
717 1, 717 11, 712 3, 712 23, 712129, 712204, G06F 9445
Patent
active
061065730
ABSTRACT:
A microprocessor implements an instruction tracing mechanism that saves the state of the microprocessor without special hardware. Prior to the execution of a traced instruction, a trace microcode routine is implemented that saves the state of the microprocessor to external memory. The state information saved by the trace microcode routine varies depending upon the amount of data needed by the end user. After the state of the processor has been saved, the trace instruction is executed. State information that changed during the execution of the trace instruction is saved to memory prior to a subsequent instruction. The trace instruction mechanism advantageously requires minimal special hardware and expedites the saving of the processor state information.
REFERENCES:
patent: 4325120 (1982-04-01), Colley et al.
patent: 4598364 (1986-07-01), Gum et al.
patent: 5584038 (1996-12-01), Papworth et al.
patent: 5781753 (1998-07-01), McFarland et al.
patent: 5796974 (1998-08-01), Goddard et al.
patent: 5835740 (1998-11-01), Wise et al.
patent: 5875315 (1999-02-01), Narayan
patent: 5933626 (1999-08-01), Mahalingaiah et al.
patent: 5944841 (1999-08-01), Christie
patent: 5978907 (1999-11-01), Tran et al.
patent: 5983334 (1999-11-01), Coon et al.
patent: 5987561 (1999-11-01), Witt et al.
patent: 6038380 (2000-03-01), Wise et al.
IBM Technical Disclosure Bulletin, "Trace Array", vol. 35, No. 2, pp. 138-140, Jul. 1992.
IBM Technical Disclosure Bulletin, "Dual Digital Signal Processor Instruction TRACE Mechanism", vol. 32, No. 5A, pp. 133-140. Oct. 1989.
Melvin et al., "SPAM: a microcode based tool for tracing operating system event", ACM Proceedings of the 20th annual workshop on Microprogramming, pp. 168-171. Dec. 1987.
Mahalingaiah Rupaka
Pickett James K.
Advanced Micro Devices , Inc.
Hafiz Tanq R.
Kivlin B. Noel
Vo Ted T.
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