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Notes
David Bridgham edited this page Mar 2, 2020
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- "BLAST OFF SWITCH" (in the first section, pg. 4):???? It looks like a memory location to something.
- Strowger switch with a bay of ASR-33s: A small telephone switch that called into a remote JOSS system. Likely used as a primitive modem.
- pg. 40:
cono 500,1; pulse the "joss here" flop: Pointed out by David Bridgham. - Red/green output: Most, if not all, modern terminal emulators support colors.
- Bootstraps. Normally there is a paper tape bootstrap at location 20. This is used to read in a paper tape with DECDMP, which can load and run files off a DECtape. When running JOSS, you first end up in DDT and type BEGIN$G to start.
- There is a macro called TSX which expands to PUSHJ P,. TSX is an IBM 704 instruction.
- pg 43: The BELF constant is, from looking at the octal, supposed to be <BEL>, <CR>, <EOT>, 0, 0. Need to figure out how to put that into the ASCII pseudo-op.