Installation guide

Console exception messages
This is a typical console exception message:
? PC: 0x451<vtr=nrml>
? CR: 0x810<ce=0,ip4,exc=AdEL>
? SR: 0x30030000
<cu1,cu0,cm,ipl=8>
? VA: 0x451
? ER: 0x100003f0
? MER: 0x2000
PC
The address of the exception instruction
CR The contents of the cause register. The last
term is the exception type. The exception
types are as follows:
MOD, TLBL,orTLBS: An invalid address
was probably used in a console command.
AdEL or AdES: A console command
probably attempted access on a boundary
that was not a word.
IBE or DBE: Timeout bus error if MER
bits 16, 15, 11, 10, 9, and 8 are all clear.
Memory error if one or more of those MER
bits is set.
SR The contents of the status register
VA The virtual address of the exception
ER The contents of the error address register
MER The contents of the memory error register
1–6 TROUBLESHOOTING INFORMATION