IBM Systems Journal - 2002 Copyright

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IBM Journal of Research and Development  
Volume 12, Number 3, Page 315 (1973)
Nontopical Issue
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Design of a checkout compiler

by B. L. Marks
The PL/I Checkout Compiler was designed to emphasize programmer productivity in developing programs, even at the expense of consuming extra machine resources. We explain the choices in the design of the compiler that resulted from this emphasis. The design is constrained by the requirement that a subroutine developed using this checkout compiler should be capable of executing in conjunction with code generated by a more conventional compiler. The execution environment that supports this operation is described.
Related Subjects: Languages; Programming