FUJITSU Implementation Supplement Fujitsu SPARC64 V User Manual

Page 167

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156

SPARC JPS1 Implementation Supplement: Fujitsu SPARC64 V • Release 1.0, 1 July 2002

tt (trap type)

1 (

RED_state

)

2 (

RED_state

)

ADE

: 40

16

DAE

: 32

16

IAE

: 0A

16

63

16

Trap priority

1

1

ADE

— 2

DAE

— 12

IAE

— 3

32

End-method of
trapped
instruction

Abandoned

Abandoned.

ADE

trap

Precise, retryable or
nonretryable. See P.4.3.

IAE

trap,

DAE

trap

Precise.

Precise

Relation
between

TPC

and instruction
that caused the
error

None

None

I_UGE

For errors other than TLB
write errors, the error was
caused by the instruction
pointed to by

TPC

or by the

instruction subsequent in the
control flow to the one
indicated by

TPC

.

For a TLB write error, the
instruction pointed to by

TPC

or the already executed
instruction previous in the
control flow to the one
indicated by

TPC

wrote a TLB

entry and the TLB write
failed. The TLB write error is
detected after the instruction
execution and before any trap,

RETRY

, or

DONE

instruction.

A_UGE

None.

IAE

,

DAE

The instruction pointed to by

TPC

caused the error.

None

Register that
indicates the
error

ASI_STCHG_

ERROR_INFO

ASI_STCHG_

ERROR_INFO

I_UGE

,

A_UGE

ASI_UGESR

IAE

ASI_ISFSR

DAE

ASI_DSFSR

ASI_AFSR

TABLE P-2

Action Upon Detection of an Error (3 of 4)

Fatal Error (FE)

Error State Transition

Error (EE)

Urgent Error (UGE)

Restrainable Error (RE)

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