The first or only module of a program coded with the MSP/7 library macros. This module must contain system routines required in every storage load,and can include system routines required by more than one module of the program.
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- IBMSystem/7的模塊系統程序(MSP/7)庫宏指令編碼的程序的第一個(gè)或唯一一個(gè)模塊,該模塊必須包括每次存儲裝入所要求的系統例行程序,也可以包括多個(gè)程序模塊所要求的系統例行程序。