Intel iapx 432 manual Fault Summary

FAULT SUMMARY

The TT and EEEE fields specifY the fault level and the fault type. The TT bits are interpreted as follows:

TTDescription

00Context Level Faults

01Process Level Faults (group 1)

10Process Level Faults (group 2)

11Processor Level Faults

There are 16 fault types within each of the 4 groups. The encoding column of the tables in the following sections contains the TT and EEEE fields if the type is FF (all other faults).

C-3.<:l3J':OCT LEVEL OPERATOR FAULTS

Faults Common Tb All Operators Or Sub-operations

The following faults can occur anywhere during the execution of an operator or sub-operation (which includes instruction decoding, process dispatching, binding etc.). These faults are not explicitly referenced in the later sections.

FAULT GIDUPS	!TYPE!	ENmDING
Memory Reference Faults =>
Access Rights Fault	AR
Segment Bound Fault	SB
Memory Overflow Fault	m
Bus Error Fault	BE
Write Rights Fault	I WR
Invalid Opcode Fault	FF	00	1100
Processor Stopped Fault	FF	00	1101
Object Table Cache Qualification Faults =>
Object Descriptor Type Fault	TS	00010111
Object System Type Fault	TS	00000010

(Access) Segment Altered Faults => => Object Qualification Faults

C-5