NAME

fpuex.diag − check correct response to fpu generated exceptions

DESCRIPTION

This test forces exception conditions and checks that the FPU responds correctly.  Note that this is one of the tests that loads into the instruction cache on the CPU board and requires a machine reset following the test. 

DETAILS

None required. 

BOARDS THAT MUST BE INSTALLED

This test requires one CPU board, at least one memory board, and a known good I/O board for downloading the test.  If multiple CPU boards are installed, only the boot master is tested.  The test will not function if the memory is running in 16-way interleave (terminates with an error 162 reported).  Easy solution: install only one memory board. 

SPECIAL COMMAND LINE PARAMETERS

None

MENU ITEMS SPECIFIC TO THIS TEST

ex1Perform a basic exception test

acexCheck for ACE exception

daexCheck for DAE exception

roexCheck for ROE exception

nxoxCheck for NXA exception

vhexCheck for VHE exception

vlexCheck for VLE exception

INTERPRETING THE ERROR CODES

When this test reports an error, a customer can only determine that there is a problem with the CPU board and that is must be replaced.  For the factory test technician, the error reporting includes a line number of the source code for the verilog testing.  The source code must be examined to determine what particular cicuit was under test at the time the error was reported. 

September 02, 1992