JPS6250919B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a method for correcting magnetic bubbles and line names, and more particularly, to an information processing system in which a magnetic bubble storage controller is separated from a processing unit such as a central controller. A dedicated line
The present invention relates to a magnetic bubble and line name correction method for autonomously and quickly writing and correcting line names in a magnetic bubble storage device by connecting to a name correction circuit.

TECHNICAL BACKGROUND FIG. 1 schematically shows an example of a known magnetic bubble storage device. A known magnetic bubble storage device, as shown in FIG. 1, includes one major loop MAL and a number of minor loops MIL ₁ to
MIL ₁₂₈ , with magnetic bubbles circulating through each loop in the direction of the arrow. The minor loop is for accumulating information, and in the example in Figure 1 there are 128 pieces (MIL ₁ to MIL ₁₂₈ ) in parallel, and the major loop MAL is a minor loop.
It is one loop for writing bubbles from MIL ₁ to MIL ₁₂₈ and preparing for successive output. Each minor
Loops MIL ₁ -MIL ₁₂₈ are connected to major loop MAL via transfer gates TG ₁ -TG ₁₂₈ , respectively.

When writing information, a magnetic bubble is generated in the bubble generator BG in response to a signal input from the input terminal In, and is sent to the measurer loop MAL and moved in the direction of the arrow. If one of the transfer gates TG ₁ to TG ₁₂₈ is specified and made conductive, this magnetic bubble passes through the specified transfer gate and enters the corresponding minor loop. When the transfer gate is closed, the signal is not output to the major loop MAL, but circulates in the minor loop and is stored as information. Also, if you would like to continue providing information,
When the transfer gate of the minor loop where the desired information is stored is specified and made conductive,
The magnetic valve located at the desired position in the minor loop and carrying the desired information passes through the conductive transfer gate and outputs it to the major loop MAL, moves in the direction of the arrow, and is divided at the bubble dividing section BS. , one is detected by the bubble detection unit BD and output as a signal from the output terminal Out, and the other moves circularly through the measurer loop MAL in the direction of the arrow, passes through the specified conductive transfer gate, and is also output as a signal from the output terminal Out. is stored again in its original position in the minor loop with .

As is clear from the above, the address of one magnetic valve (therefore, the information carried by this magnetic bubble) includes information specifying one of the minor loops MIL ₁ to MIL ₁₂₈ , and information specifying one of the minor loops MIL 1 to MIL 128. Can be specified by position on the loop. Among the above addresses, the former minor loop number is called a major address, and the latter minor bit number indicating the position on the minor loop is called a minor address.

By specifying a desired transfer gate using the major address and making it conductive, it is possible to access the minor loop specified by the major address. However, in order to increase the accuracy of the access by address, the minor loop is
A line name unique to the minor loop that can be used as an address check word is stored at a specific minor address in a part of the data area of the loop. When a minor loop is addressed by a certain major address, the minor loop
Read the line name unique to the minor loop stored in the loop, compare it with the major address used for access, check whether the correspondence is correct, and detect whether the address was correct. things are being done.

Prior Art and Problems In an information processing system, such as a switching system, magnetic bubble storage devices, like other peripheral devices, are controlled by a central controller via a magnetic bubble storage controller. The magnetic bubble storage device control device performs a startup operation to start input/output operations based on a command from the central control device, a transfer operation to transfer data between the magnetic bubble storage device and the main storage device, and a termination operation to perform termination processing. However, it does not have the function of autonomously writing, checking, and correcting the name code in the magnetic bubble storage device. According to the prior art, a central controller used a main memory to control the magnetic bubble storage controller to write, check and correct the name code. This required the processing power of a central controller.

That is, first, in the central controller, data regarding line names is created and written into the main memory, and the central controller issues a control command to the magnetic bubble storage controller. The controller accesses the magnetic bubble storage device, reads data regarding the line name from main storage, and writes it to the specified address in the magnetic bubble storage device. After writing, try this name again.
The code is read and sent to the central control unit. The central control unit reads the name/code related data previously set in the main memory, compares and verifies it, and determines whether it is correct or not.
Write "No" to the specified address. The magnetic bubble storage device controller reads the contents of this address, and when it confirms that writing the name code to this address is correct, moves on to writing the next name code.

In this way, line names are sequentially written one by one using the central controller and main memory, but the number of line names to be written is 2000 in the case of a normal magnetic bubble storage device. This process required a large amount of time.

If the central controller performs the above name/code writing process while executing other processes, such as call processing in a switching system, it will take a considerable amount of time, and the central controller will have two
In a redundant system, if the standby machine exclusively performs name code writing processing without performing call processing, the time will be reduced compared to the above, but
However, it still takes a lot of time.

Thus, according to the prior art, the line name used as an address check word to confirm that the minor loop number, ie, the major address, has been correctly accessed to the magnetic bubble storage device is - The process of writing, checking, and correcting the loop has the drawback of placing a load on the central control unit and requiring a large amount of time.

OBJECTS OF THE INVENTION The present invention eliminates the above-mentioned drawbacks of the prior art, provides a magnetic bubble line name correction circuit, and when writing and correcting line names, the magnetic bubble storage device control device is In particular, the device is separated from the central control unit and directly connected to the magnetic bubble line name correction circuit, and the central control unit, main storage device, and magnetic bubble, which conventionally could not be avoided when writing and correcting line names, are connected directly to the magnetic bubble line name correction circuit. The line name correction circuit eliminates wasteful processing including transfer processing between three storage device control devices, and performs these processing exclusively in the line name correction circuit.
The purpose of the present invention is to provide an efficient method for writing and correcting magnetic bubble and line names by shortening the processing time required for writing and correcting names.

Examples of the invention Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a block diagram of the main parts of an information processing system implementing the present invention. In Figure 2,
CC is a central control unit, MM is a main memory, MBU is a magnetic bubble storage, MBCH is a magnetic bubble storage controller, NC is a name code correction circuit constructed according to the present invention, and SW is a changeover switch. .

In the illustrated information processing system, in a normal state, the switch SW is in the illustrated position, and the magnetic bubble storage device controller MBCH is connected to the central controller CC by the switch SW. However, if you want to write or edit the name code, please use the switch.
SW is switched from the position shown, and the magnetic bubble storage controller MBCH is disconnected from the central controller CC and connected to the name code correction circuit NC.

FIG. 3 shows a name structure constructed according to the present invention.
3 is a diagram showing detailed connections of an example of the code correction circuit NC, and shows the range of chain line I in FIG. 2. FIG.
Figure 4 is the name code correction circuit shown in Figure 3.
FIG. 3 is a diagram showing the operation flow of NC.

In Figure 3, MBU is a magnetic bubble storage device, MBCH is a magnetic bubble storage device control device, and NC
is a magnetic bubble name code correction circuit.
In this embodiment, the name code correction circuit
NC is configured as a microprocessor.

First, the name/code correction circuit NC hardware
The structure of the wear will be explained.

In FIG. 3, the switch circuit SW corresponds to the switch SW in FIG.
Gates 11 to 15 connect the MBCH to the central control unit CC and separate the two during name code writing or correction, and gates 11 to 15 constantly separate the magnetic bubble storage device control unit MBCH from the magnetic bubble name code correction circuit NC. , is the gate that connects the two during name code writing or correction.

Normally, the flip-flop 26 of the name code correction circuit NC is in a reset state and outputs "0" from its output terminal, so that gates 1 to 8 are conductive and gates 11 to 15 are nonconductive, and the magnetic bubble is The storage device controller MBCH is the central controller CC
bus lines CHN, ODR, DATA-BUS and bus line MAD-BUS to the central control unit CC,
It is connected to the central controller CC via MRQ, DATA-BUS, INT, and M-ODR, receives control from the central controller CC, and controls the magnetic bubble storage device MBU accordingly.

In this state, the magnetic bubble storage controller
MBCH receives the magnetic bubble storage controller number from the central controller CC by line CHN and by line ODR.
When it receives a command from the machine, if the number matches its own, it performs the operation according to the command. According to the command, the address of the main memory MM where the necessary data is stored is calculated and sent to the line MAD-BUS (memory address bus).
Read the necessary data from MM and connect the line DATA-
Based on this data sent from the BUS via gates 2 and 51, the specified data is written to the specified address of the magnetic bubble storage device MBU, and data is read from the specified address and stored. Performs predetermined operations such as transferring the data to the main memory.

Figure 3 Magnetic bubble storage device control device MBCH
is constructed using conventional technology, and
To summarize its operation, as explained above, it performs a startup operation to start input/output operations in response to a command from the central controller CC, a data transfer operation between the magnetic bubble storage device MBU and the main memory device MM, and a termination process. It is broadly divided into the final action to be performed. However, it is not configured to write or modify the name code described above.

It is assumed that this is a normal case in which the central controller CC controls the magnetic bubble storage device controller MBCH, and the activation selection keys 21 and 22 are set at the positions shown. Since "0" (earth) is input to one input of the gate 23 and the input of the gate 24 via the activation selection keys 21 and 22, and both outputs are "0", the OR gate 25 The output of the flip-flop 26 is "0" and the flip-flop 26 is not affected and maintains the reset state.

In order to autonomously execute line name checking, writing, etc. when the power is turned on, only the start selection key 21 is operated and released.

When the power is turned on, if the power-on signal (signal output during power-on) POW from the power supply device is received by the lead 20, this is input as "1" to one input terminal of the gate 23, and the other input terminal is key 21
Since it is open, a signal "1" represented by the voltage Vc.c. is input, so the gate 23 outputs "1", which is input to the flip-flop 26 via the OR gate 25 and output. Set. The output of flip-flop 26 changes to "1", so gates 1-8 are non-conductive and gates 11-15 are conductive. Thereby, the magnetic bubble storage controller MBCH is separated from the central controller CC by gates 1-8, and is instead connected to the magnetic bubble name code correction circuit NC by gates 11-15. In this case, after the flip-flop 26 is set, the activation selection key 21 is restored and closed.

If the power has already been turned on and the device is operating normally, it can be started by opening only the start selection key 22 at one time. That is,
When the activation selection key 22 is opened for one hour, the ground air (signal "0") input to the gate 24 is cut off, and the power supply voltage Vc.c. is input as a signal "1" through the resistor. Therefore, the gate 24 outputs "1",
This passes through OR gate 25 and is input to flip-flop 26, which is set. After that, the operation is the same as above, and the magnetic bubble storage controller MBCH is disconnected from the central controller CC.
Connected to line name correction circuit NC.

The output "1" of the flip-flop 26 is also input to the peripheral control circuit 28 of the control memory 27 to activate it, and the peripheral control circuit 28 starts with the leading address created by hardware.

Here, 27 is a control memory in which a microprogram is stored, 28 is a peripheral control circuit that can create an address for the control memory 27 in a hardware manner, and 29 is a peripheral control circuit for read control.
30 is a register that holds microinstructions read from the control memory 27, and the part 30-1 stores instructions, addresses, and other data;
In the part 30-2, gates 32, 33, 34, 3
5, 47, and 48 are stored. Note that "1" is stored in the portion 30-3 when the program ends, thereby performing initial settings. Note that 32 is a command sending gate, 33 is a control word sending gate, 34 is a line name and status byte sending gate, 35 is a comparison data address setting gate, and 47 and 48 are data comparison result sending gates. is control memory 2
It is controlled by the data of the portion stored in the portion 30-2 of the instruction read from 7 to the register 30.

Next, the operation will be explained. As described above,
Assume that the flip-flop 26 is set by appropriately operating the activation selection keys 21 and 22. With its output, gates 1-8 are cut off, gates 11-15 are made conductive, and the magnetic bubble storage controller MBCH is cut off from the central controller CC and connected to the magnetic bubble name code correction circuit NC.

On the other hand, in the peripheral control circuit 28, when the input from the flip-flop 26 changes to "1", it generates the start address of the normality test program of the magnetic bubble storage device control device MBCH, and first Perform a normal test to confirm normality. First, a microinstruction for normality testing is read from the address specified by the above-mentioned top address via the output side peripheral control circuit 29 to the register 30.

An instruction read into register 30 is generally processed as follows. That is, based on the contents of the portion 30-2 of the register 30, only the instruction sending gate 32 becomes conductive, and the data read into the portion 30-1 of the register 30 is sent as an instruction to the gate 32,
A, the data is sent to the read ODR of the magnetic bubble storage device controller MBCH via the gate 11 and the OR gate 50, and the magnetic bubble storage device controller MBCH receives and holds it.

The magnetic bubble storage device controller MBCH operates to read the command address word indicating the start address of the control word stored in advance in the main memory device MM, so the above command address word is sent to the read MAD-BUS. Read (starting address) again
Set memory request signal “1” to MRQ and read M
- Send “1” to ODR as a read signal.

The address word sent to the above read MAD-BUS is the control memory access address generation circuit 3.
At 6, the gate 3 is turned on by the read request signal "1" which is converted into an address word for the control memory 27 and sent to the read MRQ.
7 and gate 44, it reaches the peripheral control circuit 28 of the control memory 27, and registers the (same) control word corresponding to the control word to be read from the main memory MM from the control memory 27 based on the sent address. In the 30-1 part of 30, also 30
-2 portion reads data that makes only the control word sending gate 33 conductive.

The above control words are gate 33, ro, gate 1
2. Read DATA from OR Gate 51
Magnetic bubble storage controller MBCH via BUS
will be sent to

The magnetic bubble storage device control device MBCH performs control operations according to the above-mentioned held command and the control word sent, for example, controls the magnetic bubble storage device MBU to read out the read data. Read DATA-BUS, transfer destination,
In other words, the main memory MM to be transferred and written to.
The address word is sent to the read MAD-BUS, the memory request signal is sent to the read MRQ, and "0" is sent to the read M-ODR as a write request signal.

First, the address word is inputted to the control memory and access address generation circuit 36 through the gate 13 as described above, where it is converted into an address word for the control memory 27, and inputted to the comparison circuit 38 through the gate 37. do. At this time, the address word is not input to the peripheral control circuit 28 because the gate (44) is non-conductive ("0" is output as a write request signal to the read M-ODR).

At this time, the next instruction in the control memory 27 is read into the register 30, and the address word from the portion 30-1 is sent to the comparison circuit 38 via the gate, and the above-mentioned control memory access address generation circuit 3
It is compared with the address word sent from 6, and if it matches, the magnetic bubble storage device controller
Corresponding to the address word sent to the read MAD-BUS of MBCH, the data sent to the read DATA-BUS is recognized as data to be checked, that is, the return data capture gate is activated by the match detection output of the comparison circuit 38. 39 and the above lead
Test result data output from DATA-BUS,
Gate 14 and return data capture gate 39
The returned data is then input to the return data holding register 40 and stored.

At this time, the address is updated in the control memory 27, and data is written into the register 30 using the updated address. This data includes reference data for the returned test result data, that is, data that should be obtained when the test results are correct.
The data reaches the reference data holding register 41 through the reference data holding register 41 and is held there.

Here, the test result data held in the return data holding register 40 and the reference data holding register 4
1 and the reference data held in the data comparison circuit 4.
2 is compared.

The comparison result is held in the comparison result holding register 43 and displayed on the display 42. Reference numeral 46 is a display selector which selects an arbitrary cell of the comparison result holding register 43 and displays the correct/incorrect information stored in the selected cell on the display 45.
can be displayed.

If the comparison results of the data comparison circuit 42 match,
The test result data held in the return data holding register 40 is correct. In this case, the data comparison circuit 42
produces no output and stores positive information in the corresponding cell of display register 43.

If the comparison results of the data comparison circuit 42 do not match, the test result data held in the return data holding register 40 is incorrect. In this case, the data comparison circuit 42 produces an output and stores the fraudulent information in the corresponding cell of the display register 43.

When it is determined that the returned test result data is incorrect due to a mismatch in the comparison results of the data comparison circuit, this mismatch information reaches the peripheral control circuit 28 via gates 48 and 2, and the address of the microprogram in the control memory 27 is sent to the peripheral control circuit 28. Change and stop working.

After this fraudulent information is stored in the register 43, the output of the register 43 is sent to the peripheral control circuit 28 of the control memory 27 via the gate 47 and C, so that the operation can be restarted.

On the other hand, after the test result data is sent from the read DATA-BUS of the magnetic bubble storage device controller MBCH via the gate 14, a signal "1" is sent from the read INT. This signal is applied to the clear terminals of registers 40 and 41 from gate 15 via OR gates 53 and 54, respectively, and the test result data and reference data that have already been compared and verified in comparator circuit 42 and are unnecessary are cleared. .

As can be understood from the above explanation, the magnetic bubble storage device controller MBCH operates according to instructions from the central controller CC while it is incorporated in the system.
It performs a startup operation to start input/output operations, a data transfer operation between the magnetic bubble storage device and the main memory device MM, and a termination operation to complete the above operation, but the line name and line name should be written. It does not have a function to restore the line name written in the magnetic bubble storage device MBU when this destruction is detected from the generation of an address word and the line name read out by specifying the address.

In FIG. 3, reference numeral 16 denotes an operation mode designation circuit, which is the magnetic bubble storage device control device described above.
When the MBCH test program is finished, the peripheral control circuit 28 determines the operation mode (A or B) specified by the operation mode designation circuit 16, generates the start address of the microprogram that executes the specified operation mode, Starts operation in the specified operation mode.

In the line name correction circuit NC shown in FIG. 3, by storing a microprogram that performs the above functions in the control memory 27, line name correction can be performed without using the central control unit CC and main memory MM. Execute writing, correction, etc.

Writing and correction of line names to the magnetic bubble storage device MBU are performed as follows.

FIG. 4 is a diagram showing the operational flow of the embodiment shown in FIG. 3.

As mentioned above, activation is performed as appropriate using the activation selection keys 21 and 22. This activation sets the flip-flop 26 as described above, and its output becomes "1". As a result, gates 1 to 8 are non-conductive, gates 11 to 15 are conductive, and the magnetic bubble storage device controller MBCH is cut off from the central controller CC and main memory device MM, and is instead connected to the name code correction circuit NC. be done. In this way, flow F-
The magnetic bubble storage controller MBCH and the line name correction circuit NC shown in FIG. 1 are initialized.

Next, the flow moves to F-2, and the output of the flip-flop 26 is transferred to the peripheral control circuit 28 of the control memory 27.
microprogram control is started.
That is, the test program for the magnetic bubble storage device control device stored in the control memory 27 is activated to test its normality. Determine whether it is normal or not, F-3, if it is normal, display a fault and stop F-22, but if normal, flow F-
4, the operation mode instructed by the operation mode specifying circuit 16 to the peripheral control circuit 28 of the control memory 27 is determined.

If operation mode A is specified, operation mode A
to move to. In operation mode A, line names already written in the magnetic bubble storage device MBU are checked, and if any are destroyed, they are corrected to normal line names. First, read out the line name for the first major address (minor loop number) of the magnetic bubble storage device MBU F-5, and compare it with the regular line name for that address to see if there is any corruption in the line name. F- to determine whether
6. Needless to say, this determination is made by storing the read line name (test result data) in the register 40, storing the regular line name in the register 41, and determining the match in the comparison circuit 42. As a result of this determination, if it is determined that there is no destruction and a regular line name is stored, the process moves to flow F-7.

If it is determined in flow F-6 that there is destruction, the process moves to flow F-10 and the line name destruction position is accumulated and displayed (register 4 in Figure 3).
3) F-1 further writes a regular line name to the destroyed line name.
1. Furthermore, check the above writing location, F-12, and if it is OK (if OK), flow F-12.
-7, and if it is not good (NG), this fact is memorized without writing a regular line name, a display is performed, and the flow moves from F-13 to F-7.

In flow F-7, the line name determined to be non-destructive in flow F-6, and the line name determined to be destroyed in flow F-10, F-1
1, F-12, and the line name that has been further processed in flow F-13, it is determined whether or not it is the final line name, and if it is determined that it is not the final line name, the process moves to flow F-9. ,
The check address (corresponding to the major address, ie, the minor loop number) is updated, and the process returns to flow F-5 to check the next line name in the same manner as above.

When all line name checks are completed and it is determined in flow F-7 that the line name is the final line name, the line name correction circuit NC is reset (F-8).

This reset is performed as follows. When it is determined that the check of the final line name has been completed, an instruction is read from the control memory 27 into the register 30 in FIG. 3, indicating that the processing has been completed. 3 is set to “1”, or gate 5
A reset signal or a clear signal is sent to the flip-flop 26 and registers 41 and 40 via the flip-flop 26 and the registers 41 and 40, so that the flip-flop 26 is reset and the registers 40 and 41 are cleared. The reset of the flip-flop 26 causes its output to be "0", gates 1-18 are conductive, gates 11-15 are non-conductive, and the magnetic bubble storage controller MBCH is activated by the line name correction circuit.
Disconnected from NC and connected to central controller CC.

Display register 4 by releasing key 17
You can clear 3.

Note that the operation mode designation circuit 16 selects operation mode B.
is specified, it is determined in flow F-4 that operation mode B is specified, and the process moves to operation mode B. In operation mode B,
The line name is written to the magnetic bubble storage device MBU. First, when transitioning to operation mode B, F-1 clears the initial settings of the magnetic bubble storage device MBU, that is, its contents.
4. And F-15, which writes line names continuously. When this writing is completed, a continuous line name check F-16 is performed. If there is no damage to the line name, the process immediately moves to process F-18 to determine whether the final line name check has been completed, and if there is damage to the line name, the process moves to process F-20 to display the damaged location, and then the final line name is checked.・Proceed to process F-18 to determine whether the name check has ended.

If it is determined that the last line name check has not been completed, the check address is updated F-2
1 and return to flow F-16 (line name continuity check). When it is determined that the last line name check has been completed, the line name correction circuit
NC is reset F-19, but this process is exactly the same as flow F-8 in operation mode A.

Magnetic bubble storage through both operating modes
In the MBU, the locations where incorrect or erroneous line codes are written are stored in register 43 as described above. Therefore, by specifying the display location (cell) in the register 43 using the display location designation circuit 46 and displaying its status on the display 45, the location of the defective line name in the magnetic bubble storage device MBU can be determined. do.

Although one embodiment of the present invention has been described above,
The present invention is not limited to the above embodiments,
Various modifications are possible within the technical scope.

Effects of the Invention As explained above, according to the present invention, in an information processing system, the magnetic bubble storage device and the magnetic bubble storage device control device are separated from other devices, especially the central control device, and the normality test of these devices is performed. It is now possible to write and update line names,
This has the effect of shortening the time required for the normality test and especially for line name writing and correction processing.

As a result, it becomes possible to confirm the normality of magnetic bubble storage devices in a short time when adding them, making maintenance and operation more efficient. storage device) has the advantage of not imposing a processing burden.

The effects of the present invention are particularly great when controlling a large-capacity magnetic bubble storage device.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an overview of the configuration of a known magnetic bubble storage device, FIG. 2 is a connection diagram showing an overview of an embodiment of the present invention, and FIG. 3 is a diagram showing the outline of the configuration of a known magnetic bubble storage device.
FIG. 4 is a connection diagram of an example of a name correction circuit, and is a diagram showing an example of an operation flow of an embodiment of the present invention. MBU...Magnetic bubble storage device, MAL...Major loop, MIL ₁ to MIL ₁₂₈ ...Minor loop, TG ₁ to _{TG 128} ...Transfer gate, CC
...Central control unit, MM...Main memory, NC...
...Line name correction circuit, MBCH...Magnetic bubble storage controller, SW...Switch and switch circuit, 1-8, 11-15...Gate,
23, 24, 32, 33, 34, 35, 37, 3
9, 44, 47, 48...and gate, 16
...Operating mode designation circuit, 17, 21, 22...
Key, 50, 51, 52, 53, 54...or
Gate, 27... Control memory, 28, 29... Peripheral control circuit for control memory, 30, 40, 41, 4
3...Register, 36...Address word conversion circuit,
38, 42...Comparison circuit, 46...Display selection circuit, 45...Display device.

Claims (1)

[Claims] 1 Major address at the time of access (minor address)
An information processing system including a magnetic bubble storage device that uses line names for checking loop numbers), a magnetic bubble storage device control device that controls the magnetic bubble storage device, and a central control device that further controls the control device, a line name correction circuit for controlling the magnetic bubble storage device control device to write and automatically correct a line name in the magnetic bubble storage device; It is connected to the central control unit, but when writing or correcting a line name, it is disconnected from the central control unit and connected to the line name correction circuit to be controlled by the line name correction circuit. Magnetic bubble, line name correction method.