DEC DECstation 5000 Model 100 Series, Руководство по обслуживанию

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Cursor Test
The cursor test the cursor RAM. To run the cursor test, type
x12, where x represents the graphics module unit number, and
press Return.
Cursor test parameters and error codes
Table F-63 describes the parameters used in cursor test
commands and error messages. Table F-64 lists error codes
used in cursor test error messages.
Table F-63. Cursor Test Parameters
Parameters Description
P1 Cursor’s horizontal position
P2 Cursor’s vertical position
P3 Cursor command register contents
P4 Actual cursor RAM contents
P5 Expected cursor RAM contents
Table F-64. Cursor Test Error Codes
Error Code Description
1 Test failed to read ID or initialize VDAC.
2 Cursor RAM failed incremented values.
3 Cursor RAM failed decremented values.
Test Commands and Messages Produced by Version PDE3 ROM Chips F–47