31 lines
368 B
Plaintext
31 lines
368 B
Plaintext
; Tail-recursive factorial function
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; factorial(n, acc) = if n <= 1 then acc else factorial(n-1, n*acc)
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MAKE_FUNCTION (n acc) .factorial_body
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DUP
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PUSH 5
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PUSH 1
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PUSH 2
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PUSH 0
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CALL
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HALT
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.factorial_body:
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LOAD n
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PUSH 1
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LTE
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JUMP_IF_FALSE .recurse
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LOAD acc
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RETURN
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.recurse:
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DUP
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LOAD n
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PUSH 1
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SUB
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LOAD n
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LOAD acc
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MUL
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PUSH 2
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PUSH 0
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TAIL_CALL
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