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This is called '''direct threaded code''' (DTC). Although the technique is older, the first widely circulated use of the term "threaded code" is probably James R. Bell's 1973 article "Threaded Code".<ref>{{cite journal|last=Bell|first=James R.|title=Threaded code|journal=Communications of the ACM|year=1973|volume=16|issue=6|pages=370–372|doi=10.1145/362248.362270|s2cid=19042952 }}</ref>
In 1970, [[Charles H. Moore]] invented a more compact arrangement, '''indirect threaded code''' (ITC), for his Forth virtual machine. Moore arrived at this arrangement because [[Data General Nova|Nova]] minicomputers had an [[indirection bit]] in every address, which made ITC easy and fast. Later, he said that he found it so convenient that he propagated it into all later Forth designs.<ref>Moore, Charles H., published remarks in Byte Magazine's Forth Issue</ref>
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