JP3333540B2 - Hierarchical symbol correction system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hierarchical symbol correction system for correcting a hierarchical symbol in a drawing entry tool.

[0002] When a hierarchical symbol is corrected during drawing editing, a function of examining the spread range of the hierarchical symbol and automatically replacing all the hierarchical symbols with the corrected hierarchical symbol is required.

[0003]

2. Description of the Related Art In conventional hierarchical symbol correction, when a hierarchical symbol having a module is corrected, it is manually searched for the same hierarchical symbol in other modules, and replacement is performed one by one. It has become.

[0004]

In the conventional system,
A manual check is performed to determine whether the same symbol as the corrected hierarchical symbol is used in another module, and a correction process is performed. For this reason, it is difficult to search for the symbol manually. Therefore,
For the corrected hierarchical symbol to be replaced, it is required that the system can search for the spread range and automatically correct it.

[0005] The present invention has been made in view of the above problems, and has as its object to provide a hierarchical symbol correction system capable of automatically correcting a hierarchical symbol.

[0006]

FIG. 1 is a block diagram showing the principle of the present invention. In the figure, 1 is a CP for performing various controls.
U and 2 are memories for storing various information, 3 is an instruction input unit for inputting various information, and 4 is a display unit for displaying an editing screen. Reference numeral 10 denotes a hierarchical symbol storage unit for storing circuit information provided in the memory 2 as a hierarchical symbol. Reference numeral 20 denotes information read from the hierarchical symbol storage unit 10 displayed on the display unit 4 as graphic information. , Deletion, etc., and the result is stored in the hierarchical symbol storage unit 10 again. A control unit 21 controls the operation of the entry unit 20.

[0007]

The entry section 20 has a hierarchical symbol storage section 10.
The display unit 4 displays the hierarchical symbol information read from
Processing such as addition and deletion of pins is automatically performed according to an instruction from the instruction input unit 3. Next, the control unit 21 sequentially reads the hierarchical symbols from the hierarchical symbol storage unit 10 and checks whether the same hierarchical symbol is included in another part. After the same correction is made for the same hierarchical symbol, it is stored again in the hierarchical symbol storage unit 10. In this way, according to the present invention, the hierarchical symbols can be automatically corrected, and the processing can be made more efficient.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 2 is a diagram showing an example of a data structure of an entry tool used in the present invention. In the figure, reference numeral 30 denotes a system, for example, an LSI. Reference numeral 31 denotes a plurality of modules constituting the system. Although only one module 31 is shown in the figure, a plurality of modules 31 exist.
Each module 31 includes common information 32, interface information 33, management information 34, and a plurality of page information 35.

FIG. 3 is a diagram showing an example of the data structure inside the module. In one page information 35, a plurality of hierarchical symbols are interconnected as a hierarchical symbol information table 11 by a link identifier “next”. In the example of the figure, three hierarchical symbol information tables 11 exist. The hierarchical symbol information table 11 contains symbol names,
Pin data, shape data and link identifier "next"
It is composed of

The pin data is linked to the pin information table 12. When there are a plurality of pins in the same hierarchical symbol information table 11, the respective pin data are interconnected by a link identifier "next". The example shown in the figure shows a case where the number of pin information tables 12 is two. Each pin information table 12 includes a pin name,
It comprises a pin display position, a pin name display position, a pin direction, and a link identifier "next". Among the components of the pin information table, the pin display position is linked to the coordinate table 13.

FIG. 4 is a diagram showing a configuration example of a module corresponding to the data structure shown in FIG. According to FIG. 3, there are only three symbols S1 to S3. Also,
The symbol S1 has only two pins, one for input and one for output. The entry unit 20 displays the circuit information as shown in FIG. 4 on the display unit 4 based on the data read from each module 31 of the hierarchical symbol storage unit 10.

FIG. 5 is a flowchart showing an update sequence of the hierarchical symbol information table according to the present invention. The sequence shown in the figure is performed by the control unit 21 in the entry unit 20 based on an instruction from the instruction input unit 3. That is, when a command to delete a symbol pin is issued from the instruction input unit 3, the CPU 1 having received the deletion command transfers control to the control unit 21, and the control unit 21 performs an operation as shown in FIG. become. Also, in this example, a case will be described as an example where a module is already determined to be a specific module and a pin of a symbol in the module is deleted.

First, the control unit 21 checks whether or not the symbol name retrieved from the hierarchical symbol storage unit 10 in the memory 2 and read out is the same as that specified by the instruction input unit 3 (S1). If they are the same, it is checked whether the pin is added or deleted (S2). If it is added, the used pages are sequentially displayed to perform additional work (S3). Here, the case where the size of the hierarchical symbol additionally increases is not considered.

If it is a pin deletion, it is checked whether the pin information table 12 is a pin table to be deleted (S4). Then, if the table is a deletion target table, the pin information table is deleted and linked again (S5). FIG. 6 shows an example of relinking. With the hierarchical symbol information table 11 and the # 1 pin information table 12 linked, the # 1 pin information table 12
Is deleted, the hierarchical symbol information table 11 and #
2 are linked as shown in the figure.

Next, the next pin information table is Null.
It is checked whether it is (0) (S6). If it is not 0, the next table is searched (S7), and step S7 is executed.
Return to 4. If it is 0, it is checked whether or not the next hierarchical symbol information table 11 is 0 (S8).
If it is not 0, the next table is searched (S9), and the process returns to step S1. Hierarchical symbol information table 11 is 0
In the case of, it is checked whether or not the next page information table is 0 (S10). If it is not 0, the next table is searched (S11), and the process returns to step S1. If the next page information table is 0, the pin deletion sequence ends. As a result, the corrected hierarchical symbol data is stored again in the hierarchical symbol storage unit 10.

FIG. 7 is a view showing a screen display example before correction. Two hierarchical symbols SB1 and SB2 are displayed in one module. Data D input to SB1
ATA0 to DATA3 enter SB2 and exit from SB2 as outputs OUT0 to OUT3. Here, it is assumed that the hierarchical symbol SB2 is to be corrected. Then, the correction is made by the input pin I3 and the output pin O3 as shown in FIG.
Is to be deleted.

This pin deletion sequence is performed in a sequence as shown in FIG. Then, the result of the correction is as shown in FIG. As can be seen from a comparison with FIG. 7, the input pin I3 and the output pin O3 of SB2 are deleted.

[0018]

As described above, according to the present invention, it is possible to provide a hierarchical symbol correction system capable of automatically correcting a hierarchical symbol.

[Brief description of the drawings]

FIG. 1 is a principle block diagram of the present invention.

FIG. 2 is a diagram showing an example of a data structure of an entry tool used in the present invention.

FIG. 3 is a diagram showing an example of a data structure inside a module.

FIG. 4 is a diagram illustrating a configuration example of a module.

FIG. 5 is a flowchart showing an update sequence of a hierarchical symbol information table according to the present invention.

FIG. 6 is a diagram showing an example of relinking of a pin information table.

FIG. 7 is a diagram showing a screen display example before correction.

FIG. 8 is an explanatory diagram of correction.

FIG. 9 is a diagram showing a screen display example after correction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 CPU 2 Memory 3 Instruction input part 4 Display part 20 Entry part 21 Control part

Continuation of the front page (56) References JP-A-2-25980 (JP, A) JP-A-2-244382 (JP, A) JP-A-3-71267 (JP, A) JP-A-4-140885 (JP) JP-A-4-77969 (JP, A) JP-A-1-237880 (JP, A) JP-A-4-291462 (JP, A) JP-A-3-52073 (JP, A) JP-A Sho 62-154065 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06F 17/50 660 G06F 17/50 654 JICST file (JOIS)

Claims (1)

(57) [Claims] And CP U to 1. A conduct various controls, a memory for storing various information, an instruction input unit for inputting various kinds of information,
It is composed of a display unit for displaying the editing screen, before Symbol in memory <br/>, provided with a hierarchical symbol storage unit for storing circuit information as a hierarchical symbol, whether we information read this hierarchical symbol storage unit A hierarchical symbol correction system provided with an entry part for displaying on a display unit as graphic information, performing predetermined editing, and storing the result again in a hierarchical symbol storage unit
In the entry section, the modification of the hierarchical symbol has been completed.
The hierarchical symbol storage is searched for
Do the same for the other parts that use the bolt
Hierarchical symbol correction system, characterized in that had Unishi.