IBM System/7 Functional Characteristics - All about the IBM 1130 ...

"" ',Pli iI 1114111111111111 1111111MMININIFI! 11 1 1 91 imp ill 11MEILOAD AND STORE INSTRUCTIONSSix instructions are provided to move data between storage and the index registers oraccumulator in the processor module.Load Accumulator (PL)0 5 8 15Op code R Displacement1 1 0 0 0 X X X1 1 I I t 1 1 1 1C 0-7 X XThe contents of the storage location specified by the effective address replace the contentsof the accumulator. The storage location contents are not changed.If R=000, the effective address is formed using the IAR as a base register; if R=001to 111, an index register is used.The carry and overflow indicators are not changed. The result indicators are changed toreflect the final contents of the accumulator.Example:0 Before PL operationAddressed storage word0 15Accumulator0 150 0 0 0 0 0 0 0 1 1 1 1 1 1 1 11 1 1 1 1 1 I 1 I 1 1 1 I 1 10 0 F FXXXXXXXXXXXXXXXX1 1 1 1 1 1 1 1 1 1 1 1 1 1 1‘'•••••••■••,./•,./ .....11.4,••••■•••0 After PL operationAddressed storage word0 15Accumulator0 150 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1IIIIJIIIIII IIII0 0 F FUnchanged by operation0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1 1 1 10 0 F F4-8 GA34-0003