A formal description of SYSTEM/360

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AP CP DPMP BPZAPCVBCVBCPz;}BPMPDPAP MP BPZAP CVDDP+ (exit, j49, j50, j51, j52),,CVB Ral +- ?(32)P34.35 +-P34.35 + 7(2)YP j +- 2241u1 + I,DPMACg(j, 1, s, d; ?(8))j : a1j +- 2241j - 1j13 C-r=j14j 15j16j17jl8j19j20j21j22j23--f-j24 cj 25j26 +j27 +j 2899 ---'j30#=j31j32j33j34 6j35j36j37j38=j39j40j41j42j43 +j44j45j46r;j47 Ij48j49j 50j51j52j 53j54j55FORMAL DESCRIPTION OF <strong>SYSTEM</strong>/<strong>360</strong> 247
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Page 1: All SYSTEM/~~O functional character
Page 6 and 7: example, 'J, in line 20 of MAC' (j;
Page 8 and 9: used for the instructions as well a
Page 10 and 11: this respecifies the instruction co
Page 12 and 13: ~The first 2’’ bytes of memory
Page 14 and 15: Indications of machine failure are
Page 16 and 17: TS (test and set) simply fetches on
Page 18 and 19: is suppressed (f12) by a protection
Page 20 and 21: in the case of ZAP (zero and add) a
Page 22 and 23: Input/outputThe SYSTEM/B~O input/ou
Page 24 and 25: one device and the initiation of a
Page 26 and 27: multiplexor channel it could be any
Page 28 and 29: code in C” (line 27). The pci bit
Page 30 and 31: channel operation as any other stat
Page 32 and 33: ~register os/s" (line 45), acknowle
Page 34 and 35: and Si = 1 is used to denote a pend
Page 36 and 37: In line 121 a multiplexor channel s
Page 38 and 39: mand chaining. Alternatively, the b
Page 40 and 41: Iithas no effect on a current opera
Page 42 and 43: for assistance in the early stages;
Page 44 and 45: EX "TM --DCT DCTR --BAL DALR --BCR
Page 48 and 49: MI'CrEDEDMK "EDMKEDEDYVN YVZTR MVCg
Page 52 and 53: k45k46k47k48k49k50k51k52k53k54k55k5
Page 54 and 55: Table 3 Continuedsymboldimensionsig
Page 56 and 57: dimensionsignijicancereferences: se
Page 58 and 59: Table 3Continuedsymboldimensionsign
Page 60 and 61: ~~~~~~~~~~I0 1 2 3 4 5 6 7 8 910 In
Page 62 and 63: ~~MCIE, machine check interruption
Page 64 and 65: (=Ti, qi +- 1, -v/q 0-. -i : (qrand
Page 66: C h d saivpa8:Ks;s;EMmpx ? 1 I&I ?

A formal description of SYSTEM/360

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