| 摘要 |
PURPOSE:To access a completely differently complied file in a program implemented by using an accessing method to a forward complied or dividedly complied file, by installing a supervisor call handler, etc. CONSTITUTION:A data management program 6 is composed of each routine using an accessing method for a forward complied or dividedly complied general file 9. Moreover, a management file directly inputting-outputting routine 7 is composed of each routine using the accessing method of a management file 10. When a supervisor call SVC instruction is used for a macro instruction following to the accessing method of a general file, the control is handed over to the routine of the program 6 through an SVC handler 5 and, in the case of a brach instruction, the routine is handed over to an address burried in a data control block DCB4. By installing the SVC handler 5, etc., in this way, a management file constituted with different data can be accessed easily. |
