| 摘要 |
PURPOSE:To use a program in module unit, in common by storing a group of modules in an RAM chip together with information which linkes those modules, and then freely linking a program when the program is modified owing to the replacement of the RAM chip. CONSTITUTION:A small-sized computer system consists of an arithmetic processor 11, a memory device 12, an input and output controller 13, etc., and is operated depending upon functions of a program stored in the RAM12A in the device 12, and the RAM12A is replaced to change functions of the system. In the RAM chip 21 of the RAM12, some parts PG1, PG2- of the program are stored and in an RAM chip 22, some parts PGi, PGj- of the program are stored. Further, a coupling table 32 used in the RAM chip 23 is stored to obtain execution addresses L1-Lj of the parts PG1-PGj- of the program and the starting address T of the table 31; and an area for variables used in common is indicated by T+O, T+1- to couple programs freely. |
