1.	IDENTIFICATION
2.	Maindec-8I-D0AA
3.	PDP-8/I Instruction Test (EAE) - Part 3A
4.	March 13, 1968
The document (Maindec-8i-d0aa-d) that should be here is missing.   What we do have is the document for Maindec-801-3a, which will be appended to this PDF.  Instructions for running the diagnostic have not changed.
Thanks to the work of Doug Ingraham, who retyped the source code for Maindec-801-3a from the PDF, we know the differences between the two diagnostics at a level closer to the source level than just diffing the binary.
I have created what I hope is a high quality dis-assembly of Maindec-8i-d0aa.  The differences lie in an additional block of code to test the SCL instruction, and no less than three bugs being introduced due to bitrot of the old code.  In addition, code to trap stray interrupts was added in low memory.
The first bug is that in location 0606, a "DCA LXP" became "DCA I LXP".
The second is that at location 1000, "JMP HSE3" became "JMS HSE3".
The third is that at location 2414, "JMP SCP14" became "JMP I SCP14".
The SCL test routine ("TSTSCL") is inserted, starting at 5400.
Surprisingly, the errors do not compromise the operation of the diagnostic, at least in the common case where the EAE is mostly working.
The errors are retained for historical accuracy, as they appear in all the known copies of the binary paper tape.
This page was prepended by Vincent R. Slyngstad.