Dbsr - Debug Status Register - IBM A2 User Manual

14.5.20 DBSR - Debug Status Register

Register Short Name:
Decimal SPR Number:
Initial Value:
Slow SPR:
Guest Supervisor Mapping:
Bits Field Name
32 IDE
33 UDE
34:35 MRR
36 ICMP
37 BRT
38 IRPT
39 TRAP
40 IAC1
41 IAC2
42 IAC3
43 IAC4
44 DAC1R
45 DAC1W
46 DAC2R
Version 1.3
October 23, 2012
DBSR
304
0x0000000000000000
N
Initial
Value
0b0 Imprecise Debug Event
Set to 1 if MSRDE = 0 and a debug event causes its respective Debug Status Register bit
to be set to 1.
0b0 Unconditional Debug Event
Set to 1 if an unconditional debug event occurred.
0b00 Most Recent Reset
Set to one of three values when a reset occurs:
00 No Action
01 Reset1
10 Reset2
11 Reset3
0b0 Instruction Complete Debug Event
Set to 1 if an instruction completion debug event occurred and DBCR0[ICMP] = 1.
0b0 Branch Taken Debug Event
Set to 1 if a branch taken debug event occurred and DBCR0[BRT] = 1.
0b0 Interrupt Taken Debug Event
Set to 1 if an interrupt taken debug event occurred and DBCR0[IRPT] = 1.
0b0 Trap Instruction Debug Event
Set to 1 if a trap instruction debug event occurred and DBCR0[TRAP] = 1.
0b0 Instruction Address Compare 1 Debug Event
Set to 1 if an IAC1 debug event occurred and DBCR0[IAC1] = 1.
0b0 Instruction Address Compare 2 Debug Event
Set to 1 if an IAC2 debug event occurred and DBCR0[IAC2] = 1.
0b0 Instruction Address Compare 3 Debug Event
Set to 1 if an IAC3 debug event occurred and DBCR0[IAC3] = 1.
0b0 Instruction Address Compare 4 Debug Event
Set to 1 if an IAC4 debug event occurred and DBCR0[IAC4] = 1.
0b0 Data Address Compare 1 Read Debug Event
Set to 1 if a read-type DAC1 debug event occurred and DBCR0[DAC1] = 0b10 or
DBCR0[DAC1] = 0b11.
0b0 Data Address Compare 1 Write Debug Event
Set to 1 if a write-type DAC1 debug event occurred and DBCR0[DAC1] = 0b01 or
DBCR0[DAC1] = 0b11.
0b0 Data Address Compare 2 Read Debug Event
Set to 1 if a read-type DAC2 debug event occurred and DBCR0[DAC2] = 0b10 or
DBCR0[DAC2] = 0b11.
Read Access:
Write Access:
Duplicated for Multithread:
Notes:
Scan Ring:
Description
User's Manual
A2 Processor
Hypv
Hypv
Y
WC
func
Alphabetical Register Listing
Page 565 of 897