This is a TinyLISP for SBC7 #4

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bcox merged 2 commits from tinylisp into main

2026-03-25 23:52:24 +00:00

bcox commented

2026-03-25 23:51:41 +00:00

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bcox added 2 commits

2026-03-25 23:51:41 +00:00

Add TinyLisp interpreter for SBC7 4546c982e7

A minimal Lisp interpreter in ~4.8 KB of SBC7 assembly. Features:

- Tagged 14-bit values: cons pointers, 12-bit signed integers,
  interned symbols, builtin functions
- 896-cell cons heap with mark-and-sweep garbage collector
- Full REPL with S-expression reader and printer

Special forms: QUOTE, IF, COND, DEFINE, SET!, LAMBDA, LET, BEGIN,
AND, OR. Builtins: CAR, CDR, CONS, EQ?, ATOM?, NULL?, NUMBER?,
NOT, LIST, +, -, *, /, <, >, =, PRINT, READ, T.

Closures, recursion, and tail-call optimization all work.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Add TinyLisp documentation and examples c92761d576

Reference docs, worked examples, and two sample programs
(factorial.lsp, listops.lsp). Updates the docs index.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>