19 lines
866 B
Plaintext
19 lines
866 B
Plaintext
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.NH
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Conclusions
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.PP
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Writing the compiler was very straightforward using the LLgen parser generator.
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Its extended grammar and its way of conflict resolving were of great use to us,
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especially
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the indentation handling could be implemented quite easily. The automatic
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error recovery given by LLgen took a great weight of our shoulders.
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.PP
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A set of parallelism simulation routines makes implementing \fBPAR\fP constructs
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very simple. And we consider it a necessity to have such a layer to shield the
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compiler writer from these details.
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.PP
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The translation to EM code was fairly direct, no great tricks were needed to
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make things work. Only the different sizes of words and pointers that are given
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as parameters to the compiler must be carefully watched. Variables or pointers
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must sometimes be handled with double word instructions for different word or
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pointer sizes.
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