EXTSECT EXTSECT describes the fields in the External Interrupt work area referenced by DMSITE. EXTSECT is pointed to by the AEXTSECT field in NOCON. o 40 48 50 58 60 68
A8 BO B8
co
C8
Hexadecimal Field
Displacement Naae 0 EXSAVE 40 TYPLIST 48 TIftCCi 4C 50 TIft CHAR
58 SCAi 64 TIMIHIT 68 EISAVE1 A8 EXTPSW IC BO SAVEIT B4 EXSAVE TYPLIST TIftCCW TIllCHAR SCAW TIMINI'I- EXSAVE1 EITPSW SAVEXT EITRET JRO JR1 STI!!EIIT 1*1 11/11/11111111111111. Field Description, Contents, Meaning DS 16F Saved external old PSW and/or contents of
registers
DC CL8'TYPLIN' PLIS1 to type BLIP character
DC A (TIMCHAR) DC C'B',X'81',AL2(1) DC X'FF',IL1'00' BLIP character(s)
DC XL12'00' Saved CSW/CAW DC A (2000000/13) Value that sets tiaer equal to 2 seccnds External .1!!terr,YE! DS ---16P-- Saved registers
DC X'80000000' Filled-in PSi DC A (0) DC F'O' Transfer address for external interrupt
DC V (DMSDBG) Address in IEBUG for external interrupt Section 2. CMS Iata Areas and Ccntrcl Blocks 111

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