Let's Lisp like it's 1959
summary
Implements the original 1959/1960 Lisp interpreter in C and shows the actual evil eval function from the paper, a tiny runnable system that executes Lisp 1.5 programs. Describes memory layout for cons cells, demonstrates a nonrecursive copying garbage collector (half-space, forwarding pointers) and explains how the collector only touches live objects. Includes a minimal read-eval-print loop and all source so the interpreter can be built and experimented with.
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chapters (4)
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