JPH0258137A - Data sampling system - Google Patents

Abstract

PURPOSE:To observe the displacement of a register to be aimed at a glance, and to more promptly and more surely analyze an abnormal part by stacking the data of a designated arbitrary firmware visible register to a storing means together with a microinstruction address at every changing point, and reading them. CONSTITUTION:For plural firmware visible registers 12, a register selector means 13 to designate and select an arbitrary register 12, and a data comparing means 14 to decide whether or not the data of the register 12 selected by the register selector means 13 are changed are provided. Further, a storing means 15 to successively stack the data after the change and the microinstruction addresses at such a time point only when a comparison result is inconsistent is provided. When the storing means 15 overflows, the data are successively extracted starting from those in an initial stage, and the final storage information is read by a reading means 16. Thus, what value is set to the register 12 to be aimed at what address can be confirmed at a glance.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data collection method, and particularly to a data collection method when firmware operation terminates abnormally.

[Conventional technology]

Conventionally, this type of data collection has involved reading out data after execution of abnormal processing using a diagnostic command or storing it in main memory as error information. In addition, the cause of the error was analyzed by repeatedly executing a method of forcibly stopping at the address before proceeding to abnormal processing and collecting data at that point.

[Problem to be solved by the invention]

The conventional data collection method described above has the problem that only the final information at the time when abnormal processing is executed can be collected, and the flow up to that point cannot be seen.

Therefore, in order to collect data until the transition to abnormal processing of any firmware visible register, the operation of forcibly stopping midway and collecting data must be repeated several times. Not only that, but there was also the problem that there was no guarantee that there would be no impact on others by forcibly stopping the system.

[Means to solve the problem]

The configuration of the data acquisition method of the present invention includes a register selection means for specifying and selecting an arbitrary register among a plurality of firmware-visible registers, and a register selection means for specifying and selecting an arbitrary register among a plurality of firmware visible registers, and a register selection means for specifying and selecting an arbitrary register from among a plurality of firmware visible registers; and storage means for sequentially stacking the data after the change and the microinstruction address at that time only when the comparison result is a mismatch, and when the storage means overflows. is characterized in that the 11α-order data is discharged from the initial stage data, and the final stored information can be sequentially read out by the data reading means.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention, which includes a processor 10, a RAM II storing microinstructions, and a firmware-visible register group 12.
Furthermore, it includes means 13 for selecting an arbitrary register from the register group 12, means 14 for comparing previous and subsequent data, means 15 for storing data, and means 16 for reading data from the storage means. ing.

The register selection means 13 selects in advance a firmware visible register from which data needs to be collected, and executes a microinstruction. A change in the data of the selected register 12 is detected by the data comparison means 14, and if there is a change, the data after the change and the microinstruction address at that time are stored in the storage means 15.

The storage means 15 takes the form of sequentially stacking data,
If this overflows, the data stored first is discarded in order, and the latest information is always stored.

If the data processing shifts to abnormal processing, the writing to the storage means 15 is finished, and the read means 16 sequentially retrieves the stored data. Although it is not set, you can definitely get 3 nin with a - roll.

〔Effect of the invention〕

As explained above, the present invention stacks the data of any specified firmware visible register in the storage means together with the microinstruction address at each change point, and makes it readable. Since the displacement can be observed at a glance, it has the effect of enabling faster and more reliable analysis of abnormal locations.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the data acquisition method of the present invention. DESCRIPTION OF SYMBOLS 10... Processor, 11... RAM (microinstruction), 12... Firmware visible register group, 13... Register selection means, 14... Data comparison means, 15... Storage means, 16...Reading means.

Claims (1)

[Claims] A register selection means for specifying and selecting an arbitrary register among a plurality of firmware visible registers, and a data comparison for determining whether there is a change in the data of the register selected by the register selection means. and storage means for sequentially stacking the data after the change and the microinstruction address at that time only when the comparison result is a mismatch, and when the storage means overflows, the data is stacked sequentially from the initial stage data. A data collection method characterized in that the data is ejected and the final stored information can be sequentially read out by a data reading means.