A-2
Parse Trees
A.1 Reading Parse Trees
Example A-1
Sample Machine Check, MCHK Code 06
MCHK_UNKNOWN_MSTATUS
MCHK_INT.ID_VALUE
MCHK_CANT_GET_HERE
MCHK_MOVC.STATUS
MCHK_ASYNC_ERROR
1 2 3
Unknown memory
management status error
TBSTS.LOCK <0>
TBSTS.DPERR <1>
TBSTS.DPERR <2>
None of the above
ECR.S3_STALL_TIMEOUT
None of the above
MCHK_SYNC_ERROR
ICSR.LOCK <2>
ICSR.DPERR <3>
not PCSRS.PTE_ER <10>
ICSR.TPERR <4>
Otherwise...
BIU_STATE.FILL_ECC <8> and
not BIU_STAT.FILL_CRD <9>
BIU_STAT.FILL_DSP_CMD <19:16> = DREAD
Otherwise...
BIU_STAT.FILL_DSP_CMD <19:16> = IREAD
Illegal interrupt ID error
Impossible microcode address
MOVCx status encoding error
TB PTE data parity error
TB tag parity error
Inconsistent error
S3 stall timeout
Inconsistent error
Select ALL, at least one.
Select ALL
VIC data parity error
VIC tag parity error
Inconsistent error
Select ONE
Select ONE
A
B
Inconsistent error
EXE$MCHK
BXB-0301-92
Code
(Hex)
01
02
03
04
05
06
Select ONE
Select ALL
1
2
3
4