TRUE!=FALSE

DragonflightDesign

Resource contributor
Okay - it's a clickbait title but... I've found a possible candidate for the oft-quoted 'false = zero and true = not zero (i.e. anything else)'. I spotted this in the source code of MS-DOS 1.0 (yeah... getalife).
Code:
FALSE   EQU     0
TRUE    EQU     NOT FALSE
OTOH it probably goes back a lot earlier than that.
 
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