Summary Of Actions Upon Error Detection - Fujitsu SPARC JPS1 Implementation Supplement Manual

P.2.2

Summary of Actions Upon Error Detection

TABLE P-2
Action Upon Detection of an Error (1 of 4)
TABLE P-2
Fatal Error (FE)
Error detection None
mask (the
condition to
suppress error
detection)
Trap mask (the None
condition to
suppress the
error trap
occurrence)
154 SPARC JPS1 Implementation Supplement: Fujitsu SPARC64 V • Release 1.0, 1 July 2002
summarizes what happens when an error is detected.
Error State Transition
Error (EE)
When
ASI_ECR.WEAK_ED
= 1, the error
detection is
suppressed
incompletely.
None
Urgent Error (UGE)
, ,
I_UGE IAE DAE
When
ASI_ECR.WEAK_ED = 1, error
detection is suppressed
incompletely.
A_UGE
Error detection except the
register usage is suppressed
when ASI_ECR.WEAK_ED = 1
or upon a condition unique to
each error.
Error detection at the register
usage is suppressed by
conditions unique to each
error.
Only some s have the
A_UGE
above unique conditions to
suppress error detection; most
do not.
, ,
I_UGE IAE IAE
None
A_UGE
ASI_ECR.UGE_HANDLER = 1
or
ASI_ECR.WEAK_ED = 1
The A_UGE detected during
the trap is suppressed, is kept
pending in the hardware, and
causes the trap when the
ADE
trap is enabled.
Restrainable Error (RE)
None
ASI_ECR.UGE_HANDLER = 1
or
ASI_ECR.WEAK_ED = 1
or
PSTATE.IE = 0
or
ASI_ECR.RTE_xx = 0, where
RTE_xx is the trap enable
mask for each error group.
RTE_xx is RTE_CEDG or
RTE_UE.