bringing up an 8f...

From: Allison J Parent <allisonp_at_world.std.com>
Date: Thu Apr 8 21:28:36 1999

Well folks,

The 8F is now up and basically healthy. The stuck bit was a bad 74L54
that had a stuck input. Shame the replacement I have is a year older than
the machine!
 
I ran one program that will execute on a DECMATE but the result is not
visible! ;)

/ TEST PROGRAM FOR pdp-8f
/ inchworm view with pannel switch set to Acc (8E/F/M)
/
0200 *0200 / start address
0200 7200 START, CLA /CLEAR ACC
0201 1211 TAD WORM /PUT WORM CHARACTER IN ACC
0202 7004 MAIN, RAL / PUSH THE WORM LEFT
0203 7000 DELAY, NOP
0204 7000 NOP
0205 2212 ISZ DELCNT /DELAY 4096 (~20MS) INNER
0206 5203 JMP DELAY
0207 5202 JMP MAIN
0210 7402 HLT
0211 0007 WORM, 0017 / FOUR BIT LONG INCH WORM
0212 0000 DELCNT, 0000 / INSIDE LOOP COUNT
0213 $

Next step is to get the terminal interface in and try it aand also verify
all of CORE as all I've checked is most of 00200, page 0 and random words.

Allison
Received on Thu Apr 08 1999 - 21:28:36 BST