There's the "WAIT 6502,X" Easter egg[0]!

Lines 6530 - 6539 are the "MICROSOFT!" that gets printed.

Line 4914 is the code to check the address passed to WAIT and, if correct, print the "MICROSOFT!".

It really is inconspicuous. A source licensee definitely wouldn't find it by quickly perusing.

▲ exitb 6 days ago | parent | next [-]

   "".join(map(lambda n: chr((n & 0o77) + 64), reversed([0o241, 0o124, 0o106, 0o217, 0o23, 0o217, 0o122, 0o103, 0o211, 0o315])))

This python one-liner roughly recovers the hidden string out of defined bytes.

▲ LocalH 5 days ago | parent | prev | next [-]

This is why I'm still skeptical about the claims that it's "impossible" for there to be a CP/M easter egg in CP/M, as Kildall claimed there was (although I think the likelihood of the same egg in MS-DOS is zero).

	▲	Joker_vD 5 days ago \| parent [-]
		Then again, all we have is one person claiming that they witnessed it, and since Gary Kildall himself dropped the case against Microsoft and never bothered to push it, we probably will never know for certain.

▲ chirsz 6 days ago | parent | prev [-]

It would be even better if this easter egg appeared on line 6502!