EXTSECT Hexadecimal Field
Displacement Name B8 CO C4
C8
CC
CD EXTRET JRO JR1 STIMEXIT EXTFLAG REALTIMR !£! DS DC
DC
DC
DC EQU DC D
F'22'
A (0) A (0) X'OO' X'80' AL3 (0) Field Description, Contents, Meaning YE Bl Saved external old PSi 22 doublevords for registers
and user save area
Address of free storage
Address of STIMER exit routine 1*1 External flag
Real timer indicator
Reserved for IBM use
178 IBM VMj370 Data Areas and Control Block Logic

EXTUAIHA EXTUAREA is a 96-byte user area generated by
area is passed to the user via register 13.
the user area.
the C!SAVE macro. The peinter to the user The USAVEFTR field in also Faints tc
r
o I GRS 40 FRS 60 UEXTPSWO 68 USERAREA Hexadecimal Field
Displacement Name Field Description, Contents, I!eaning ------------ -------------------------------------- DS OD 0 GRS DS 16F Registers at time of interruFt 40 FRS DS 4D Floating-point registers at interrupt 60 UEXTPSWO DS 1D External old PSi at interrupt
68 USERAREA DS 18F User save area BO USEREAND DS OF End user area Section 2. CMS rata Areas and Contrel Blocks 179