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

Appendix A. System/7 Instruction SetThe instructions in this appendix are in alphabetical order by name. Use of the leading Pin the instruction mnemonics is required in all System/7 programs to be assembled on an1130 or 1800 system, or using the System/7 Stand-Alone Assembler. The P or an Xisalways required in the Execute I/O instruction (PIO or XIO). The P is optional (except forPIO) when assembling on a System/360, System/370, or the System/7 Macro Assembler.Key to symbols for all tables in this appendix:Symbol MeaningAcc AccumulatorAddr Contents of the address portion of atwo-word instructionDisp Contents of the displacement portion of aone-word instructionEA Effective addressIARInstruction address registerXR... Index register 1, 2, 3, 4, 5, 6, or 7AddMnemonicExecutiontime (ns)Op code R Displacement Hex equivalent Description of instruction[PI A 800 10000 000 XXXX XXXX 80 X X Add contents at EA (IAR+Disp) to Acc[P] A 800 10000 001 XXXX XXXX 8 1 X X Add contents at EA (XR1+Disp) to Acc[PI A 800 10000 010 XXXX XXXX 8 2 X X Add contents at EA (XR2+Disp) to Acc[P] A 800 10000 011 XXXX XXXX 8 3 X X Add contents at EA (XR3+Disp) to Acc[P] A 800 10000 100 XXXX XXXX 8 4 X X Add contents at EA (XR4+Disp) to Acc[P] A 800 10000 101 XXXX XXXX 8 5 X X Add contents at EA (XR5+Disp) to Acc[P] A 800 10000 110 XXXX XXXX 8 6 X X Add contents at EA (XR6+Disp) to Acc[PI A 800 10000 111 XXXX XXXX 8 7 X X Add contents at EA (XR7+Disp) to AccSystem/7 Instruction Set A-1