108 lines
1.8 KiB
Plaintext
108 lines
1.8 KiB
Plaintext
$ ./llm
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;; function definitions:
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(def and (lm (a b) (nand (nand a b) (nand a b))))
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(def not (lm (a) (nand a a)))
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(def or (lm (a b) (nand (nand a a) (nand b b))))
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(def nor (lm (a b) (not (or a b))))
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(def gt (lm (a b) (lt b a)))
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(def neq (lm (a b) (not (eq a b))))
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(def geq (lm (a b) (or (eq a b) (gt a b))))
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(def eq (lm (a b) (and (not (lt a b)) (not (lt b a)))))
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(def leq (lm (a b) (or (eq a b) (lt a b))))
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(def sub (lm (a b) (add a (inv b))))
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(def mult (lm (a b)
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(if (eq b 1)
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a
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(add a (mult a (sub b 1))))))
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(def div (lm (a b)
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(if (geq a b) (add 1 (div (sub a b) b))
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0)))
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(def modsubr (lm (a b last)
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(if (lt a 0) last
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(modsubr (sub a b) b a))))
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(def mod (lm (a b) (modsubr a b 0)))
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(def sumarg (lm (a b erg)
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(if (gt a b)
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erg
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(sumarg (add a 1) b (add erg a)))))
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(def sum (lm (x y) (sumarg x y 0)))
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(def inc (lm (x) (add x 1)))
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(def dec (lm (x) (add x (inv 1))))
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(def fac (lm (x)
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(if (eq x 0) 1
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(mult x (fac (dec x))))))
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(def abs (lm (x) (if (lt x 0) (inv x) x)))
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(def cons (lm (a b) (lm (x) (if x a b))))
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(def car (lm (cell) (cell t)))
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(def cdr (lm (cell) (cell nil)))
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(def countfn (lm (x) (if (lt x 0) dec inc)))
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(def countdir (lm (x) ((countfn x) x)))
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(def execop (lm (x y z) (x y z)))
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(def myadd (lm (x y) (add x y)))
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;; -------------------------------------------------------
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;; read eval print loop:
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(and t t)
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t
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(and t nil)
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nil
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(nand t nil)
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t
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(gt 8 1)
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t
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(neq 1 1)
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nil
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(eq 1 1)
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t
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(leq 1 5)
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t
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(inc 5)
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6
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(mult 5 5)
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25
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(div 8 2)
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4
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fac
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#fn
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(fac 5)
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120
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(countdir (inv 1))
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-2
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(countdir (countdir 5))
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7
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(myadd 4 3)
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7
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(execop myadd 4 3)
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7
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cons
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#fn
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(def cell (cons 1 2))
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(car cell)
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1
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(cdr cell)
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2
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(def cell2 (cons 0 cell))
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(car cell2)
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0
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(car (cdr cell2))
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1
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(cdr (cdr cell2))
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2
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