Short PDP-8 Memory Address Test..

[Lyle Bickley]

Continuing the debugging of my recently acquired PDP-8/E, I wrote an address
test that's easy to enter from the front panel:

---
# PDP8 Quick Address Test
# Pass 1: Loads locations 23-7777 with their own address.
# Pass 2: Tests each location for the correct address. If
# it fails (address does not equal it's own address) then
# the diagnostic halts with the error location in 22. 
# The contents of that location displays the error.
# By Lyle Bickley
#
0000 7600 CLA
0001 1021 TAD 21
0002 3022 DCA 22
0003 1022 TAD 22
0004 3422 DCA I 22
0005 2022 ISZ 22
0006 5003 JMP 3
0007 1021 TAD 21
0010 3022 DCA 22
0011 1022 TAD 22
0012 7041 CMA IAC
0013 1422 TAD I 22
0014 7440 SZA
0015 7402 HLT (ERROR!)
0016 2022 ISZ 22
0017 5011 JMP 11
0020 5000 JMP 0 (START OVER)
0021 0023
0022 0000
---

Cheers,
Lyle
-- 
73   NM6Y
Bickley Consulting West
https://bickleywest.com

"Black holes are where God is dividing by zero"