VM370 Rel 6 Data Areas and Control Block Logic (Mar79)
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ROUTE o ROUTDEST 8 ROUTHEXT Hexadecimal Field Displacellent Nalle Field Description, Contents, !eaning ------------ 0 ROUTDEST DS CLa Final destination ID a ROUTNEXT DS CLa LINKID for indirect routing ROUTSIZE EQU *-ROUTDEST Length of a routing tatle entry Section 3. RSCS Iata Areas and Control Blocks 259
SVECTORS SVECTORS defines low storage for the RSCS virtual aachine.. It includes two types of storage: machine-defined and RSCS-defined. • MACHINE-DEFINED LOW STORAGE The SVECTORS aachine-defined low storage defines machine status data referenced during program execution and required by System/370 architecture. r , I 0 IPLPSW 40 CSW 1 4 44 1 1 8 IPLCCW 1 48 CIW 1 C I I 4C 1////1////////////////////////////////1 10 IPLCCW2 , 14 50 TIflJER 1 , 18 OLDEXT 54 ////1//////////////1/////////////////1 1C 58 BEWEXT 20 OLDSVC 5C 24 6C BEWSVe 28 OLDPROG 6C 2C 7C IIIEWflJlCH 30 OLDMACH 74 34 78 BEWIO 38 OLDIO 7C 3C Hexadeciaal Field Displacement Naae Field Description, Contents, flJeaning ------------ -------------------------------------- 0 IPLPSW DS D X'00040000',V(DflJ7INI) 8 IPLCCW1 DS D 10 IPLCCW2 DS D 18 OLD EXT DS D External interrupt old PSW 20 OLDSVC DS D Supervisor call old PSi 28 OLDPROG DS D prograa check old PSW 30 OLDMACH DS D Machine check old PSW 38 OLDIO DS D Input/output old PSW 40 CSW DS D Channel status word 48 CAW DS F Channel address word 4C DS F Reserved for IBM use 50 TIMER DS F 4X' FF' TOn clock 54 DS F Reserved for IBM use 58 NEWEXT DS D X'00040000',V(DM7EXT) 60 NEWSVC DS D X'OO040000',V(DflJ1SVC) 68 NEWPROG DS D X'00040000',A(RIXOUCH) 70 NEWMACH DS D X'00020000',A(OLtfIJACH) 78 NEWIO DS D X'OO040000',V(DflJ7IOMIB) 260 IBM VM/370 Data Areas and Control Block Logic