That OctalDecimal Table 384

Not long agi, I +--------------- +--------------- Rob Warnock I had been hastily going through my copy of the LGP-30 manual (not physical) to try and verify that, but I could not before posting. +--------------- I have a hard-copy LGP-30 maintenance manual at home. I'll look up the page number for you. ... +---------------

Found it! Table I (Section II Page 13) lists the Flexowriter Code. There are 16 rows, and four columns labelled "Hexidecimal Digit" (oddly, actually containing the decimal numbers 0-15), "Numerical" (those characters used in hex numbers, i.e., "0123456789fgjkqw"), "Commands" (that is, the machine instructions, "zbyridnmpeuthcas", whose four LSBs are the same as "0123456789fgjkqw"), and "Controls" are also two small groups of additional characters (mostly punctuation) that don't neatly fall into one of the main three groups.

Oops! Small correction: It isn't the four LSBs of a 6-bit character that are the same between "0123456789fgjkqw" and "zbyridnmpeuthcas", respectively, it's the four *MSB*s. Odd, but true. Input characters are shifted into the AC from the right (into the AC's LSB), and when the machine is in 4-bit input mode, the shifting stops after 4 bits.

-Rob

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