JPS60258655A - Production of patch area - Google Patents

Abstract

PURPOSE:To reduce the load of a programmer and to secure procession of a patch area by using an idle area calculation means and a patch area production means which turns an idle area into a patch area. CONSTITUTION:A compiler 2 performs the object production processing for conversion of an input source program 1 into an object program then produces a patch area. In such a patch area production mode, the size of an object if first calculated. Then the object size is subtracted from (n) page area (n=1, 2-) which are needed. Then an idle area of the last page is calculated, and an NOP instruction is buried into the idle area for conversion of said idle area into a message area. Finally the contents of a program control area which are obtained through the object production processing are corrected. A linkage editor 3 connects an object modules PMA and PMB.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical field of the invention The present invention provides a method for automatically creating a batch area.
This invention relates to an automatic creation method for a C batch area.

(2) Prior art and problems If a bug is found in the loading module, the way to remove the bug is to modify the source program itself and load it again using a compiler or linkage editor.
It is possible to recreate Modinir, but since this method is time consuming, a method has also been adopted in which a batch area is set up within the fourth module and this batch area is used to remove bugs. . The batch area is an instruction code embedded area for system emergency processing.

／＜? There are two ways to set up a batch area: when there is free space in the program area in a shade segment, the free area is used as a batch area, and a common batch area is set up in the system, and a common batch area is set up as a batch area. A method of using it with multiple load modules is known.

In the former method, the programmer converts the source program into an object program by calculating the thickness of the object program and converting the free space into batches by coding the free space in the program area in the load segment with a DC instruction.・It was set as an area. The former method has the advantage that the batch area can be accessed without rewriting the contents of the advance base register, but has the disadvantage of increasing the burden on the programmer. In the latter method, it is necessary to change the value of the pace register in order to run through the batch area.

(3) Purpose of the invention The present invention obviates the above-mentioned drawbacks.

It is an object of the present invention to provide a batch area creation method that makes it possible to eliminate the need for calculations by a programmer to secure the batch area while ensuring the internal pressure of the batch area in its own program.

(4) Structure of the invention and therefore, the batch area creation method of the present invention is as follows:
In a system equipped with an object program creation mechanism that converts a source program into an object program KK, and a load program creation mechanism that creates a load program by combining multiple object programs, a machine corresponding to the source program a checking means for checking the size of the program in word format;
a free area calculation means for calculating a free area in a page area that accommodates the program in the machine language format; and a batch area creation means for writing predetermined data into the free area in order to use the free area as a batch area. , characterized in that the object program creation mechanism or the load program creation mechanism is provided with means for defining a new program as a combination of the program in machine language format and the contents of the batch area. It is.

(5) Examples of the invention Hereinafter, the present invention will be explained with reference to the drawings.

Figure 1 shows 1 of the present invention! i! FIG. 2, a block diagram of the embodiment, is a diagram showing an overview of program modification and program loading.

1 and 2, 1 is a source module, 2 is a compiler, 3 is a linkage instruction editor, 4 is a memory, 5 is a program loading processing section, 6 is a batch processing tool, 7 is a punch card, PMA and PMB indicate an object module, PML a final load program, and CA a program control information area.

The compiler 2 performs object creation processing to convert the input source program l into an object program, and then performs batch area creation processing. Note that the batch area and batch area are synonymous. In the patch area creation process, first calculate the thickness of the object, then subtract the object size from the required page area (3=l, 2...) to calculate the free space on the last page. , embeds a NOP command in order to use this empty area as a message area, and finally modifies the contents of the program control information area determined in the object creation process. In addition,
The page area is a loading unit area on memory. Linkage editor 3 is an object
The module P'MA and PMB are combined and edited, and first an external reference resolution load module is created in the same way as a normal linkage editor. Busy Check whether a batch writing area has been provided for each object module. If YES, do nothing; if NO, check the size of the load module, calculate free space in the page, send messages, etc. Create a program as an area and modify the program control information area.

In FIG. 2, a program on a disk is modified using a program modification, modification, and program modification processing tool 6. In FIG. In this case, data is stored in the batch area as necessary.

Loading of the load program PML into the memory 4 is performed page by page by the program loading processing section 5.

(6) Effects of the Invention As is clear from the above explanation, according to the present invention □, there is a batch area within the own program, making it easy to operate the pace register, and the memory capacity of the programmer's book when loading. It is possible to achieve effects such as there is no need to code the batch area with consideration given to the batch area, and batch area reservation processing can be performed accurately and automatically.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a diagram showing an overview of program modification and program loading. l...Source module, 2...Compiler, 3
...Linkage editor, 4...Memory, 5...
・Program loading processing unit, 6...Batch processing tool, 7...Punch card, PMA and PMB・
...Object module, PML...Final load program, CA...Program control information area. Patent applicant: Fujitsu Limited and one other patent attorney: Yobe Kyotani

Claims (1)

[Claims] In a system that is equipped with an object program creation mechanism that converts a source program into an object program, and a code program creation mechanism that creates a load program by combining multiple object programs, the source program a checking means for checking the size of a program in machine language format corresponding to the
a free area calculation means for calculating a free area in a page area that accommodates the program in the machine language format; and a batch area creation means for writing predetermined data into the free area in order to use the free area as a batch area. , a batch characterized in that the object program creation mechanism or load program creation mechanism is provided with means for defining a new program by combining the program in machine language format and the contents of the batch area. - Area creation method.