MCHAREA
Hexadecimal Field
Displacement Name in MCBPDAR6
MCBP6CBA EQU --X '80-' -- 47
48
4C
50
54
MCBPDAR7 DS Bits defined MCB7STCK-EQU MCH7GSTR EQU MCB7PURG EQU MCB7LOGO EQU MCB7EXIT EQU MCH7RSRE EQU MCB7IOEM EQU MCBFSAR DS MCHFSAV DS MCBFSEAV DS MCHPDARI DS MCHLENl EQU MCHLEN EQU MCHFIX EQU 1X in MCBPDAR7 --X'80'--- X'40' X'20' X'lO' X'08' X'04' X'02' 1F IF 1F
1F *MCHDAMAGE *MCHRESEV 280+48
Field Description, Contents, Meaning Change bit active
N*8 Flag byte Interfaces for STACK routine
Interfaces for GETMAIN routine
Interfaces for PURGE routine
Interfaces for V=R logoff routine
Interfaces for exit to CP
Interfaces for RELEASE and RESET routines
Interfaces for the recorder
Failing location real address
Instruction address at failure
End of the failing location
End of the failing virtual stcrage address
Length of damage assessment area
Length of area to be cleared
Length of the fixed logout and the header
record for machine check handler
36 IBM VM/370 Data Areas and Control Block Logic
ftCRECOBD MCRECORD provides the necessary extended logout information for error recording of
processor and main storage. 0 ft*1 1 ft*2 8 10 18 20 28 30 148
Hexadecimal Field
Displacement Name
o
o
1
2
3
4
6
7
8 10 18 20 28 30 148 MCREC DS ftCRECTYP DS MCOPSYS DS MCSiONE DS I!CSWTWO DS I!CSiITCH MCRECCNT
MCRECCC I!CDATE I!CCPUID MCPROGID MCJOBID I!C01DPW I!CFID10G DS DS DS DS DS DS DS DS DS FID1G1H EQU I!CEIT10G EQU MCHDII!AG EQU 1 ft*3 OD 11 11 11 11 21 11 11 118
118
118
118 Its 35D I M*4 ftl..SiITCH ft*5 l/ft*6//1 ftCDATE ftCCPUID MCPROGID MCJOBID ftCOLDPW ftCFIDLOG ftCEITLOG (Variable Length) I!CHDlftAG (80 bytes)
Field Description, contents, fteaning ft*1 ftachine check record type ft*2 Operating system ft*3 Record independent switch ft*4 Record dependent switch
Unused switches ft*5 Record count ft*6 Reserved for IBft use
Date and ti.e
Processor identification and .odel number Program identity
Job identity (unused) ftachine check old PSi ftachine check fixed logout
(*- !!CFIDtOG) Length of machine check fixed logout area
Beginning of machine check extended logout
(the extended logout length is variable
length and machine dependent)
*
*
Damage assessment area (80 bytes)
Section 1. CP Data Areas and Control Blocks 37
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