JPH08263302A - Interruption monitoring controller - Google Patents

Abstract

PURPOSE: To provide an interruption monitoring controller which generates an interruption with proper timing based on the change of operating state of its internal hardware. CONSTITUTION: This monitoring controller is provided with a mask setting means 11 which sets the output of a prescribed number of pairs of hardware operating states, an internal state monitoring part 12 which outputs an inhibition/grant control signal for generation of interruptions according to the internal hardware operating state of the controller and the mask of the means 11, an instruction comparison means 15 which compares the instruction data stored in an instruction code storage part 16 with the instruction data under execution and outputs a coincidence signal when both instruction data are coincident with each other, the interruption request signal generation parts 13a, 13b... which generate the interruption signals by receiving a coincidence signal, a grant control signal and a grant flag respectively, and an interruption control means 18 which outputs an interruption destination address after receiving an interruption signal and reads the instruction data out of an instruction data storage means to carry out the interruption processing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interrupt monitoring control device used in various information processing devices having an interrupt generating function, and more particularly to monitoring the operating state of hardware inside the information processing device in real time. The present invention relates to an interrupt monitoring control device that performs interrupt processing.

[0002]

2. Description of the Related Art Generally, in various information processing devices, the operating state of the hardware changes due to manufacturing, designing, aging, etc., and the required processing is not performed, or other hardware is abnormal or damaged. May trigger.

Therefore, in the conventional information processing apparatus, the hardware inside the apparatus has an interrupt function for performing interrupt processing when the operation is improper or abnormal. This interrupt function indicates the operating state of the hardware inside the apparatus. It is configured to detect each hardware internally and perform interrupt processing.

Therefore, in this information processing apparatus, it is possible to perform interrupt processing internally according to the operating state of the hardware inside the apparatus, but when the operating state changes, the processing flow can be changed appropriately and directly. It is difficult to reflect.

Further, since the device has no means for observing the operating state of the hardware inside the device from the outside of the device, the operating state inside the device cannot be easily grasped from the outside, and the inside condition of the device can be seen from outside in real time. Cannot be monitored.

[0006]

Therefore, in the above information processing apparatus, when an improper operation or an abnormal operation occurs due to a change in the operating state of the hardware existing inside the apparatus, a malfunction inside the apparatus is caused. From the viewpoint of investigating or avoiding troubles inside the device, there is a demand for grasping the time when the state inside the device changes, checking the hardware state at that time, and correcting the operation of the trouble.

However, the above-described conventional apparatus cannot satisfy the above-mentioned requirements because it is only an internal processing operation. The present invention has been made in view of the above circumstances, and provides an interrupt monitoring control device that generates an interrupt at an appropriate timing based on a change in an operating state of hardware inside the device and appropriately reflects the process flow. The purpose is to

Another object of the present invention is to provide an interrupt monitoring control device capable of determining an inappropriate operation or an abnormal operation of hardware inside the device and directly grasping it outside the device. To do.

[0009]

In order to solve the above-mentioned problems, the invention according to claim 1 constitutes an information processing apparatus by sequentially reading and decoding instruction data stored in advance in an instruction data storage means. In an interrupt monitoring control device that executes hardware and monitors an operating state of each hardware to perform interrupt processing, the interrupt monitoring control device is provided outside the information processing device, and includes one of the plurality of hardware.
Mask setting means for setting a mask that determines whether to output the operating state of one or a required number of combinations of hardware, and hardware of the one or a required number of combinations provided outside the information processing apparatus. Monitor the operating status of
The interrupt monitoring control device is provided with state monitoring means having a plurality of monitoring circuit sections for outputting a control signal for prohibiting / permitting the generation of a monitoring interrupt according to the operating state of the hardware and the mask of the mask setting means.

According to a second aspect of the present invention, the instruction data stored in advance in the instruction data storage means is sequentially read and decoded to execute each piece of hardware constituting the information processing apparatus and to check the operating state of each piece of hardware. In an interrupt monitoring control device for monitoring and performing interrupt processing, whether or not to output the operating state of one of the plurality of hardware or a combination of a required number of hardware provided outside the information processing device. A mask setting means for setting a mask that determines the
A plurality of monitoring circuit units that monitor the operating states of one or a required number of combinations of hardware, and output a control signal for prohibiting / permitting the occurrence of a monitoring interrupt according to the operating states of these hardware and the mask of the mask setting means. The status monitoring means, the individual instruction data storage means for individually storing instruction data, and the individual instruction data in this individual instruction data storage means and the instruction data currently being executed are compared, and when both instruction data match, they match. An instruction comparing means for outputting a signal, an interrupt for generating an interrupt signal with the coincidence signal output from the instruction comparing means, the permission control signal output from the state monitoring means, and a preset permission flag as input conditions The request signal generating means and one or more interrupt destination addresses are stored in advance, and the interrupt signal is generated from the interrupt request signal generating means. When receiving, an interrupt destination address corresponding to this interrupt signal is output, and an interrupt control means for executing the interrupt processing by reading the instruction data of the instruction data storing means corresponding to the interrupt destination address is provided. It is a supervisory control device.

Next, the invention according to claim 3 sequentially reads and decodes instruction data stored in advance in the instruction data storage means to execute each hardware constituting the information processing apparatus, and to execute each hardware. In an interrupt monitoring control device that monitors an operating state and performs interrupt processing, the operating state of one or a combination of a required number of the plurality of pieces of hardware provided outside the information processing device is output. Mask setting means for setting a mask for determining whether or not, and provided outside the information processing device,
A plurality of monitoring circuits that monitor the operating states of the one or a required number of combinations of hardware and output control signals for inhibiting / permitting monitoring interrupt generation according to the operating states of these hardware and the mask of the mask setting means. A state monitoring means having a unit, and an operation state output means for judging and displaying the operating state of the hardware of one or a required number of combinations based on a permission control signal output from the state monitoring means are provided. It is an interrupt monitoring control device.

Further, in the invention according to claim 4, in the case of a configuration in which the operating states of all the hardware are respectively incorporated into the respective monitoring circuit sections constituting the state monitoring means, these respective monitoring circuit sections are independent of each other. Is set to a mask for determining whether to output the operating state of one or a required number of combinations of hardware, and the operating state of one or a required number of combinations of hardware is monitored.

[0013]

Therefore, in the invention corresponding to claim 1, by taking the above-mentioned means, the state monitoring means having a plurality of monitoring circuit sections is provided outside the information processing apparatus, and each of these monitoring circuit sections is provided. By individually inputting the operation state of one or a required number of hardware among a plurality of pieces of hardware inside the device, and setting a mask for whether or not to output the operation state for each monitoring circuit unit. Therefore, it is possible to selectively monitor the internal state of multiple hardware, and when the operating state of one or a required number of hardware has changed to the required operating state according to the setting mask, the control signal for enabling interrupt generation is sent. Can occur.

According to a second aspect of the present invention, when the instruction for generating the predetermined internal state interrupt by the instruction comparing means matches the instruction currently being executed, the state monitoring means sends a control signal for permitting the interrupt generation. Based on this, if the predetermined interrupt destination address is generated from the interrupt control means, it is possible to investigate the internal state of the hardware and correct the improper operation based on the predetermined instruction corresponding to the interrupt destination address. It becomes possible to perform interrupt processing, and it is possible to appropriately execute interrupt processing according to the flow of processing.

In the invention corresponding to claim 3, the control signal for permitting interrupt generation, which is generated from each monitoring circuit unit that fetches the operating state of one or a required number of hardware in advance, indicates any inappropriate operation, or If it is a signal indicating whether it is an abnormal content, it is possible to determine by the operation state output means the control signal for permitting the generation of an interrupt to determine what kind of inappropriate operation or what the abnormal content is, and By displaying it on the display unit, the internal state can be directly known externally.

According to a fourth aspect of the present invention, if the monitoring circuit units are connected so as to capture the operating states of all the hardware and the masks are individually set in the respective monitoring circuit units, a large number of them can be obtained. It is possible to take out any inappropriate operating state or abnormal content from the operating state of the hardware, and output a control signal for permission of interrupt generation in any operating state.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the device of the present invention. In the figure, reference numeral 1 denotes an information processing apparatus to be monitored. Among the internal configuration of the information processing apparatus 1, one configuration example of a portion particularly related to the apparatus of the present invention is, for example, a command to be executed next. An execution address generator 2 for generating an address, an execution address register 3 for storing the execution address generated by the execution address generator 2, an incrementer 4 for incrementing +1 each time an execution address for executing an instruction is output, In addition to the normal processing instruction string, an interrupt processing instruction string corresponding to an interrupt destination address due to an interrupt occurrence is stored, and an instruction word storage device 5 for reading and outputting an instruction in accordance with the address from the execution address register 3, and this storage device 5 Stored in the instruction register 6 and the register 6 that stores the instruction corresponding to the execution address read from the Generates information for executing the decree, is constituted by a decoder 7 and the like to execute the sending the instruction to the hardware that is present this information to various portions inside the apparatus. A signal line 8 for sending a branch instruction or the like from the decoder 7 is connected to the execution address generator 2.

Although not shown, when a required state change occurs in each hardware in the information processing apparatus 1, for example, a sensor that outputs "1", or a certain inappropriate operation or abnormal operation is detected. At this time, for example, a device or the like that outputs "1" is provided, and the sensor or device outputs "1" or data other than "1" to the outside of the device.

In this interrupt monitoring control device, a state monitoring means 10 for monitoring the operating state of the hardware inside the information processing device 1 is provided outside the information processing device 1. The state monitoring means 10 appropriately checks the operating state of the hardware inside the device 1 and an internal state interrupt mask section 11 and the operating states of a plurality of hardware based on the setting mask of the internal state interrupt mask section 11. An internal state monitoring unit 12 is provided for selectively monitoring and outputting a control signal for prohibiting / permitting interrupt generation. The internal state interrupt masking unit 11 sets and outputs, for example, "1" when the operation state of the required hardware is taken out, and sets and outputs, for example, "0" when the operation states of other hardware are blocked. Or a switch means for turning on / off the output of a logic circuit (monitoring circuit section) that constitutes the internal state monitoring section 12 with a hardware switch is used.

The mask setting contents of the internal state interrupt masking unit 11 may be fixed mask contents in advance, or may be variably set externally.

The internal state monitoring unit 12 has an AND (AN
D) A monitoring circuit unit 12a including a circuit and other logic circuits,
, 12n, and in the drawing, the monitoring circuits 12a ...
12n are provided. These monitoring circuit units 12a-12
The reason why n is provided is that it selectively outputs AND by as many as the number of output states of the hardware necessary for judging inappropriate operation or abnormal content from among many pieces of hardware (Fig. 2). Therefore, each monitoring circuit unit 12
The output of a, 12b, ..., 12n is not only a signal for generating an interrupt, but also any inappropriate operation of one or more hardware, or 1
It can be said that it is also a signal that indicates what kind of abnormality has occurred in one or more pieces of hardware.

Further, as means for judging inappropriate operation or abnormal content from a large number of hardware, for example, FIG.
As shown in FIG. 5, the status outputs of all the hardware can be connected to the respective monitoring circuit units 12a to 12n, and the operating state input lines of the hardware to the respective monitoring circuit units 12a to 12n can be independently plugged in or C
The internal state interrupt mask units 11a, 11b, ..., 11n for setting a required mask by the PU may be separately provided. In other words, in the case of plug-in type,
A plurality of internal state interrupt mask parts having different mask setting contents are prepared in advance, and an internal state interrupt mask part having mask setting contents for making a judgment of an inappropriate operation or an abnormal content is inserted by a plug-in method. Further, in the mask setting by the CPU, a large number of mask setting content data are prepared in advance in the memory table, and the mask setting content data that makes it possible to determine an inappropriate operation or an abnormal content according to an external input instruction is taken out and masked. Set.

.., 13n are internal state interrupt request generators, which are provided in the number corresponding to the monitoring circuit units 12a to 12n, and interrupt when a plurality of inputs satisfy the internal state interrupt generation condition. It has the function of generating signals.

The conditions for generating the internal state interrupt signal are as follows.
12n interrupt generation permission control signal, flag of internal state interrupt permission flag setting unit 14 and instruction comparison means 1
The output of 5 is raised.

The internal state interrupt enable flag setting unit 14
Is a part for designating permission / non-permission of internal state interrupt generation. This permission / non-permission designation is common to all the internal state interrupt request generation units 13 or for each internal state interrupt request generation unit 13. Shall be done.

The instruction comparing means 15 is stored in the instruction code storage section 16 and one or a plurality of instruction code storage sections 16 for storing in advance one or more instruction codes for generating an internal state interrupt. One or a plurality of instruction code comparison units 17 that compare the instruction code with the instruction code of the instruction currently being executed and output a coincidence signal when both instruction codes match, that is, an internal state interrupt generation condition signal.
And is constituted by. The instruction code storage unit 1
The instruction code stored in 6 may be variably set as appropriate.

Reference numeral 18 denotes an interrupt control unit for outputting an interrupt destination address. This interrupt destination address is stored in advance so as to correspond to the internal state interrupt request generation units 13a, 13b, ... Request generator 1
When the interrupt signal is received from 3a, the corresponding interrupt destination address is read out and sent to the execution address generation unit 2 via the signal line 19, and the control signal for selecting the interrupt destination address of the signal line 19 is executed. It is configured to be sent to the generation unit 2.

Next, the operation of the apparatus configured as described above will be described. Now, when the internal state of certain hardware inside the information processing apparatus 1 changes, the changed state is sent to the corresponding monitoring circuit unit of the state monitoring means 10, for example, 12a. Here, the monitoring circuit unit 12a outputs a control signal for permitting the generation of an interrupt if the state output is permitted by the mask setting contents of the internal state interrupt mask unit 11, and the internal state interrupt request signal generator 13a. In other words, the monitoring circuit unit 12a logically judges the mask setting contents of the internal state interrupt masking unit 12 and the signal indicating the state change inside the device, and the hardware inside the device is inappropriate in advance. When it is in an operating state or an abnormal state, it sends a control signal that permits the generation of an internal state interrupt.

On the other hand, the instruction code comparing section 17 compares the instruction code being executed with the instruction code which is stored in the instruction code storage section 16 in advance and generates an interrupt of the internal state. If the instruction and the instruction code of the instruction code storage unit 16 match, a match signal is output.

At this time, if the permission flag is input from the permission flag setting unit 14 to the internal state interrupt request signal generation unit 13a having a corresponding relationship with the monitoring circuit unit 12a, it is determined that the internal state interrupt generation condition is satisfied. , Interrupt controller 1
8 to send an interrupt signal.

When the interrupt control unit 18 receives an interrupt signal from the interrupt request signal generating unit 13a, it takes out the interrupt destination address corresponding to the interrupt request signal generating unit 13a and selects the interrupt destination address and the interrupt destination address. And a control signal for causing it to be supplied to the execution address generation unit 2. As a result, the execution address generator 2
Takes in the interrupt address based on the control signal and designates the corresponding address of the instruction word storage unit 5 via the execution address register 3, so that, for example, from the storage unit 5 of the hardware related to inappropriate operation or abnormal content It reads the instruction that defines the internal state check and correction processing, and executes the interrupt processing. Although not shown, the interrupt processing process and the processing result are appropriately displayed on the display device of the information processing apparatus 1 so that the investigation result, the correction result, and the like can be grasped.

Therefore, according to the configuration of this embodiment, not only the operating state of one piece of hardware but also the change of the operating state due to the combination of a plurality of hardware is detected, and
Since the interrupt enable control signal is generated according to the mask setting contents of the interrupt mask unit 11, it is possible to selectively and selectively monitor the operating state of the hardware based on the mask setting contents. It is possible to generate an interrupt enable control signal by changing the state of a combination of a plurality of suitable hardware. Moreover, the combination state of the hardware can be appropriately changed based on past experience and accumulated knowledge.

An instruction code for generating an internal state interrupt is stored in the instruction code storage unit 16 in advance, and when the instruction code enters the execution stage, the instruction code comparison unit 17 outputs a match signal as an interrupt generation condition. Therefore, it is possible to execute the interrupt process while reflecting the process flow, and thereby it is possible to appropriately perform the internal state check of the hardware and the correction process for the inappropriate operation.

Further, as shown in FIG. 3, each monitoring circuit unit 1
By inputting the output states of all the hardware for each 2a, 12b, ... And individually setting masks by the interrupt mask sections 11a, 11b, ... On the input side of each monitoring circuit section 12a, 12b ,. It is possible to construct a combination state of hardware and examine various output states of the hardware.

Next, FIG. 4 is a diagram showing another embodiment of the device of the present invention. In this embodiment, each monitoring circuit unit 12a, 12
When it is known in advance what kind of inappropriate operation the output of the state change (permission control signal) due to the combination of one or more pieces of hardware extracted from b, ... This is an example of displaying the inappropriate operation and the content of the abnormality by using, for example.

Specifically, the monitoring circuit sections 12a and 12
The input port 21 for taking in the outputs of b, ..., The output state storage unit 22 for storing the output state of each monitoring circuit unit 12a, 12b, ... And other necessary items such as maintenance items, and each port of the input port 21. The outputs of the monitoring circuit units 12a, 12b, ... Are sequentially selected to determine which monitoring circuit unit, for example, 12a is the output, and the corresponding output state data is retrieved from the output state storage unit 22 based on the determination result. And a determination output unit 24 including a CPU for displaying on the display unit 23.

Therefore, with such a configuration, the outputs of the monitoring circuit units 12a, 12b, ... Are fetched through the input port 21 to specify which monitoring circuit unit, for example, 12a,
Since the data such as the internal state of the hardware corresponding to the monitoring circuit unit 12a is retrieved from the output state storage unit 22 and displayed, what kind of operating state is the hardware outside the information processing apparatus 1, and further necessary? You can immediately know what measures to take.

[0038]

As described above, according to the present invention, when the hardware inside the device indicates an inappropriate operation or an abnormal state, an interrupt is generated at an appropriate timing.
It is possible to execute interrupt processing according to the operating state of hardware while reflecting it in the flow of processing. Further, it is possible to judge an inappropriate operation or an abnormal operation of the hardware inside the apparatus and appropriately grasp the operation state outside the apparatus.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of an interrupt monitoring control device according to the present invention.

FIG. 2 is a diagram showing a configuration of state monitoring means for monitoring an operating state by a combination of a plurality of hardware.

FIG. 3 is a diagram illustrating a mask setting method by an internal state interrupt mask unit.

FIG. 4 is a configuration example diagram showing another embodiment of the interrupt monitoring control device according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Information processing apparatus, 10 ... State monitoring means, 11 ... Internal state interrupt mask part, 12 ... Internal state monitoring part, 12a, 1
2b, ..., 12n ... Monitoring circuit section, 13a, 13b ,.
13n ... internal state interrupt request generation unit, 14 ... internal state interrupt permission flag setting unit, 15 ... instruction comparison means, 16 ... instruction code storage unit, 17 ... instruction code comparison unit, 18 ... interrupt control unit, 21 ... input port, 22 ... Output state storage unit,
24 ... Judgment output unit.

Claims (4)

[Claims] 1. The instruction data stored in advance in an instruction data storage means is sequentially read and decoded to execute each hardware constituting the information processing apparatus, and the operation state of each hardware is monitored to perform interrupt processing. In the interrupt monitoring control device, a mask which is provided outside the information processing device and sets a mask that determines whether or not to output the operation state of one or a required number of combinations of the plurality of pieces of hardware Setting means and an operating state of the hardware provided outside the information processing device and monitoring the one or a required number of combinations, and generating a monitoring interrupt according to the operating state of the hardware and the mask of the mask setting means. A status monitoring unit having a plurality of monitoring circuit units for outputting a prohibition / permission control signal regarding Embedded monitoring control device. 2. The instruction data stored in the instruction data storage means is sequentially read and decoded to execute each hardware constituting the information processing apparatus, and the operation state of each hardware is monitored to perform interrupt processing. In the interrupt monitoring control device, a mask which is provided outside the information processing device and sets a mask that determines whether or not to output the operation state of one or a required number of combinations of the plurality of pieces of hardware Setting means and an operating state of the hardware provided outside the information processing device and monitoring the one or a required number of combinations, and generating a monitoring interrupt according to the operating state of the hardware and the mask of the mask setting means. State monitoring means having a plurality of monitoring circuit units for outputting a prohibition / permission control signal regarding An individual instruction data storage means, an instruction comparison means for comparing the individual instruction data of the individual instruction data storage means with the instruction data currently being executed, and outputting a coincidence signal when both instruction data match, and this instruction comparison means An interrupt request signal generating means for generating an interrupt signal with the coincidence signal output from the device, the permission control signal output from the status monitoring means, and a preset permission flag as input conditions; and one or more interrupts in advance. When the destination address is stored and the interrupt signal is received from the interrupt request signal generating means, the interrupt destination address corresponding to the interrupt signal is output, and the instruction data of the instruction data storing means corresponding to the interrupt destination address is read out. An interrupt monitoring control device comprising: 3. The instruction data stored in the instruction data storage means are sequentially read and decoded to execute each hardware constituting the information processing apparatus, and the operating state of each hardware is monitored to perform interrupt processing. In the interrupt monitoring control device, a mask which is provided outside the information processing device and sets a mask that determines whether or not to output the operation state of one or a required number of combinations of the plurality of pieces of hardware Setting means and an operating state of the hardware provided outside the information processing device and monitoring the one or a required number of combinations, and generating a monitoring interrupt according to the operating state of the hardware and the mask of the mask setting means. State monitoring means having a plurality of monitoring circuit parts for outputting a prohibition / permission control signal regarding An operating condition output means for judging and displaying an operating condition of said one or a required number of combinations of hardware on the basis of a control signal for permission to be given, and an interrupt monitoring control device. 4. The monitoring circuit section constituting the status monitoring means is provided so as to capture the operating statuses of all the hardware, and each monitoring circuit section has an independent unit.
4. The interrupt monitoring controller according to claim 1, wherein a mask is set to determine whether to output one or a required number of combinations of hardware operation states.