Quote: self-test of compiler by fixed points; compile the compiler, then recompile; the two results should be identical; also recompile the runtime library for each machine

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the PL.8 effort has lead to a powerful … point" is compiled. The current source is completely … listing output of this compilation is saved and … same source again. A bit for bit comparison … other system noise). If they are identical the … The fixed point process guarantees that the official … effective check of the compiler, especially when coupled … machine to machine and it is rare to …   Google-1   Google-2

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Quote: PL.8 was highly portable; most bugs occurred on all machines

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