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PERQ
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=== Compilers === ICL and 3RCC contracted with the [[Edinburgh Regional Computing Center]] (ERCC) over 1981-1982 to supply an optimised [[Fortran#FORTRAN_77|Fortran77]] compiler. This also resulted in an [[Edinburgh_IMP|Imp]] compiler being created, as the F77 compiler from the ERCC was written in Imp. The ERCC compilers generated [[Q-Code]]. By 1987, maintenance of the PERQ compiler suite had been taken over by a commercial spin-off group of ex-ERCC employees, [[Edinburgh Portable Compilers|Edinburgh Portable Compilers Ltd]] (EPCL).
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