JPS6242232A - Display system for storage contents - Google Patents

Abstract

PURPOSE:To display only the contents of the effective address by providing a table for storage the address effective digits for each address and referring to this table for display of addresses. CONSTITUTION:When an address is designated for display of the contents of a register or a memory on a screen, the number of effective digits of the address is obtained with reference to a type table of addresses. Then the corresponding data is read out and stored in a display data storing area and the next address is produced after adding '1' to the lowest bit of the effective digit. The type table shows patterns, that is, '00000000' shows that 16 address bits are all effective and '00000001' shows that only upper 8 bits are effective out of 16 bits respectively. The corresponding data is read out by means of the produced address and stored in a display data storing area. This action is repeated and displayed on a screen when the data amount reaches up to a prescribed level.

Description

[Detailed Description of the Invention] [Summary] In a system configured such that the contents of a register or memory of a target device are displayed on the screen of a display device over multiple addresses starting from a specified address, , for addresses after the specified address, addresses were generated by simply passing the least significant bits of the address sequentially, so if there is a register etc. where the valid digits of the address are different from others, invalid data will be displayed. As a result, there was a problem that the display efficiency of the screen decreased, but in order to solve this problem, a table was set up to store the valid address digits for each address, and by referring to the table when displaying, the effective number of digits was reduced. Discloses a display method that displays only the contents of an address.

[Industrial Application Field] The present invention relates to control when displaying the contents of registers and memory, and in particular, by using a service processor or the like, by specifying a first address, multiple addresses after the specified address in the target device can be displayed. The present invention relates to a control method capable of efficiently displaying the contents of a register or memory even when the contents of a register or memory are displayed with different effective address digits.

[Prior Art] FIG. 4 is a diagram showing an example of a conventional display screen, in which 1 is an address, 2 is data, 2o is data at address "0100", 2. is data at address “0101n,” 2□ is data at address “0102,” and 2. is data at address “0103.”
” data, 3 is an address input line, and 4 is a display screen, which shows the display screen when the user inputs an address “0100” in the address input line.

In other words, as shown in this figure, if you enter "0100" as the address value in the address input line, the address "01" will be entered.
32 words of data in the register or memory corresponding to 00'' to 011F are displayed.

FIG. 5 is a flow chart V showing control of the conventional display method.

As shown in the figure, in conventional control, when an address value is input to the address input line, "1" is added (stepped) to the least significant bit of the address value one after another. Read the contents of the address and store it in the storage area,
When it reaches a predetermined amount (32 words in this case),
This is displayed on the display screen.

[Problems to be Solved by the Invention] In the conventional control method described above, since control is performed to increment the address by always adding "1" to the least significant bit of the address value, the effective digits of the address If there is a register or the like whose value is different from the others, meaningless data will be displayed, resulting in a problem that the screen usage efficiency for display is poor.

For example, if only the upper 8 bits of a 16-bit address are valid, if you specify address "0100" and display it, 32 words of data corresponding to addresses 0100 to 011F will be displayed. However, the lower 8 bits of the address are ignored by the hardware, so
In reality, the same data in the same register will be displayed for 32 words.

In view of these conventional problems, the present invention provides a control method that allows only data corresponding to valid addresses within a displayable range (for example, 32 words) starting from a specified address to be displayed on the screen. It is intended to.

[Means for Solving the Problems] According to the present invention, this object is achieved by storing the stored contents of the register or memory of the target device in multiple numbers starting from a specified address. In a system configured to display addresses on the screen of a display device, a table is provided to store the effective digits of the register or memory area of the corresponding address corresponding to each address, and the register or memory area to be displayed is This is achieved by a storage content display method characterized in that when the start address of an area is specified, by referring to the table, the valid digits of the address are recognized and only the content corresponding to the valid address is displayed. Embodiment] FIG. 1 is a diagram showing an address type table according to an embodiment of the present invention, in which (a) shows a register or memory address, and (b) shows an address type table. . Numbers indicated by reference marks in the figure represent bit positions. An X mark in the address in (port) represents a valid bit, and a single mark represents an invalid bit. Also, the pattern "o o o o o o o o" in the address type table shown in (b) is 1
This indicates that all 6 address bits are valid, and "00000001'' indicates that only the upper 8 bits of the 16 address bits in total are valid.

FIG. 2 is a flowchart showing the control of one embodiment of the present invention.

That is, in the present invention, when an address is specified when displaying register or memory contents on the screen, the number of effective digits of the address is determined by referring to the address type table.
The corresponding data is read out and stored in the display data storage area, and "1" is added to the least significant bit of the effective digits to generate the next address. Then, using this address, the corresponding data is read out and stored in the display data storage area. By repeating such operations, when the data reaches a predetermined amount (32 words in this example), it is displayed on the screen.

An example of a display screen in the case of the present invention is shown in FIG.

In FIG. 3, 5 is an address, 6 is data, 7 is an address input line, 8 is a display screen, 6° is data at address "0000", and 61 is address "0100".
data, 6□ is data at address “0200”, 63
indicates data at address "0300".

That is, in this figure, in address input line 7, “010
This represents the case where the first address of 0° is specified and the contents of the register or memory corresponding to the address ゛'o o o o ~ IFOO' are displayed on the screen, and the address type shown in Fig. 2 is used. The case where a table is used is shown.

U Effects of the Invention As explained above, according to the method of the present invention, when displaying the contents of a register or memory on a display device, even if there are registers or memory areas whose addresses have different significant digits, Since it is possible to display only data corresponding to a valid address, the screen can be used efficiently for display, which is very effective.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an address type table in one embodiment of the present invention, FIG. 2 is a flowchart showing control in one embodiment of the present invention,
FIG. 3 is a diagram showing an example of a display screen in the case of the present invention, and FIG.
The figure shows an example of a conventional display screen, and FIG. 5 is a flowchart showing control of the conventional display method. 1.5...Address, 2.6...Data, 3.7.
...Address input line, 4.8...Display screen Agent Patent attorney Sada Igata ~ Diagram showing the address tape of the embodiment of the present invention No. 7 Display screen including the bird that sings this death Figure 2 shows the 14 columns of the display screen from 4th floor Figure 4

Claims (1)

[Claims] In a system configured to display the contents of a register or memory of a target device over multiple addresses starting from a specified address on the screen of a display device, the corresponding address corresponds to each address. A table is provided to store the effective digits of the address of the register or memory area, and when the first address of the register or memory area to be displayed is specified, the effective digits of the address are recognized by referring to the table and the effective digits of the address are recognized. A storage content display method characterized by displaying only the content corresponding to an address.