Phase #3 - Cpu Test #4 Diagnostics - AT&T 3B2 Off-Line Diagnostic Manual

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Phase #3 - CPU Test #4 Diagnostics
Phase Name:
Type:
Function:
Tests:
Time:
Warnings:
Notes:
WE 32100 Processor Module (cpu32_4)
Normal
This phase tests the operation and instruction set of the processor module.
Test 1 - checks PUSHAW, PUSHW, and POPW instructions.
Test 2 - checks the unconditional jump instruction.
Test 3 - checks the branch to subroutine and return from subroutine
instructions.
Test 4 - checks the jump to subroutine and return from subroutine
instructions.
Test 5 - checks the exception for the divide-by-zero instruction.
Tests 6 through 8 - check for exception when the three privileged registers
(ISP, PCBP, PSW) are accessed in user execution level.
Tests 9 and 10 - checks for exception when the PSW is accessed at any
execution level except kernel.
Test 11 - checks for correct exception processing during a gate instruction.
Test 12 - checks that when operating at the user execution level, the
appropriate exception is generated when the privileged gate instruction is
attempted.
1 second
None
A failure in Tests 6 through 12 may leave the microprocessor in a non kernel
execution level. Any access at that point to privileged registers or privileged
instructions could cause an unexpected exception.
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