A formal description of SYSTEM/360

Table 3 System reference table for programs and variablessvmboliimensionigni'canceeferences: set, used, [via local variable]BMTCHCPCPUEZEEPESHFCIOZEIPLMCIETTOLTUDELAY (k units)DIAGNOSEEXCMAC; (j; k)MALFUNCTZONRESETMODEL-DEPEND-ENT RESETPOWER-OFFSEQUENCEPOWER-ONSEQUENCERESETSYSTEM STOPBd/BBoB1BZBBB4B5B0B7B857, 20mrst mode timer:hannel:ontrol panel:entral processing unit3xternal interruption entry?mergency pull:xternal signalslardware failure in channel.nput/output interruptionentryInitial program loadmachine-check interruptionentrytimertime-out limitertimer updatetime delayrecovery procedureinstruction executionmemory accesschannel recovery proceduremodel-dependent systemresetpower-off sequencepower-on sequencesystem resetsystem shutdownchannel statedevice status byteattentionstatus modifiercontrol unit endbusychannel enddevice endunit checkunit exceptioninterruption pending inchannelTFC 3,7; RESET 3TP 3'PL 1; MCIE 2; RESET 2PESET 4BMT 3; EXC all, 15; MCZE 4; T 0; TOL 3,7FXC a21; MCIE 77PU 207H 11, 18, 23, 102, 105, 136-159; CP 18, 23;CPU 3, 31, 32; EXC; ZOIE 13, 18; ZPL6,7; MCZE 8; TU 1, 3KFC 0RESET 6YP 0CP 2CP 3,9EP 1CH2, 53, 60, 74, 81, 136; HFC 8; ZOIE 18;IPL 5CH 70 [i]CH 69CH 2, 33, 36, 39, 52, 53, 59, 60, 73, 74, 81, 94,96, 98, 100, 137, 155; CPU 25, 26; EXCc12; IOIE 0, 1, 4250 A. D. FALKOFF, K. E. IVERSON, AND E. H. SUSSENGUTH