VAX 2000 FPU test ?
dave06a at dunfield.com
Tue Feb 26 21:04:05 CST 2008
Does anyone know how comprehensive the pwer-on Floating
Point Unit test (9) is in the Vaxstation/uVAX 2000 ?
Does it actually verify that the FPU is functional, or
is it just looking to see if some basic indications are
the it is present?
The (9) FPU test is performed at power-on, and also by
>>> TEST 9
I'm trying to determine if the FPU in my VS2000 is actually
Will the console ROM run (normally) without an FPU?
Unfortunately the (hopefully more comprehensive) system tests
don't appear to test the FPU (or perhaps they don't see mine
and therefore won't test it).
Can anyone with a VS/uVAX 2000 tell me if:
>>> TEST 80000106
Actually runs a test (mine just displays the testing header
and halts. Another thing to try which takes longer is to run
>>> TEST 102
And note which tests it runs.
F (video) - Only if set to VS2000
Noteably missing are:
5 (Interrupt controller)
4 (color FB) - I've got it removed
1 (Ethernet interface) - I've got it removed as well.
All of these pass during power-up and TEST n tests (if
I have them installed).
Problem is, I don't know if the system tests are supposed
to test these or not - I don't have a known good Vax2000
to compare with.
BTW: To run TEST 102 and 80000106 you need to have the system
test "hardware key" installed - this is just a DB-25 connector
on the serial-port with pins 12 and 18 connected together.
dave06a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
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