18 May
2005
18 May
'05
1:03 a.m.
Jay:
Try this:
Location Contents Opcode Comment
001000 012700 mov #1,r0 Load 1 into R0
001002 000001
001004 006100 rol r0 Rotate R0 left
001006 000005 reset Initialise bus (70ms)
001010 000775 br .-4 Loop back to 'rol r0'
from:
http://www.psych.usyd.edu.au/pdp-11/11_40.html#chaser
Not sure if it works on all models.
De
18 May
18 May
1:30 p.m.
----- Original Message -----
From: "Dennis Boone" <drb at msu.edu>
To: <cctech at classiccmp.org>
Sent: Wednesday, May 18, 2005 6:03 AM
Subject: PDP-11 lamp test
Jay:
Try this:
Location Contents Opcode Comment
001000 012700 mov #1,r0 Load 1 into R0
001002 000001
001004 006100 rol r0 Rotate R0 left
001006 000005 reset Initialise bus (70ms)
001010 000775 br .-4 Loop back to 'rol r0'
from:
http://www.psych.usyd.edu.au/pdp-11/11_40.html#chaser
Not sure if it works on all models.
De
This is the one I mentioned - it runs too fast to allow the filaments to
light on the 11/45. I guess it was meant for an 11/70 (with LED's on the
console, instead of bulbs).
Jim.
3:12 p.m.
On 5/18/05, Jim Beacon <jim at g1jbg.co.uk> wrote:
> Try this:
>
> Location Contents Opcode Comment
> 001000 012700 mov #1,r0 Load 1 into R0
> 001002 000001
> 001004 006100 rol r0 Rotate R0 left
> 001006 000005 reset Initialise bus (70ms)
> 001010 000775 br .-4 Loop back to 'rol r0'
This is the one I mentioned - it runs too fast to
allow the filaments to
light on the 11/45. I guess it was meant for an 11/70 (with LED's on the
console, instead of bulbs).
I'll have to keep this one around for when I get time to restore that
11/70 front panel I got from Jay (dead/missing switches, but all the
lights are there - I have some C&W switches that will electrically
fit, with narrow paddles, but the mounting frame is *entirely*
different)
(of course, I might try out that panel with my 'real console' first,
once I get that built)
-ethan
7003
days inactive
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3 comments
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participants (4)
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drb＠msu.edu -
ethan.dicks＠gmail.com -
jim＠g1jbg.co.uk -
toresbe＠ifi.uio.no