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archivescicada-nymph -- a forth-like language for to teachthe little nymph is for teaching purpose only. it reuses the code and idea to teach my friends I will use assembly language (FASM for x86-64) the programming language to be implemented the following shows how to define "if" & "else" & "then" by "define-macro" : if << string[address, length] -- address, string[address, length] >> *false?branch* save-into,jo-heap *current-free-address,jo-heap* xx|swap|x 0 save-into,jo-heap end ; define-macro : else << address, string[address, length] -- address, string[address, length] >> *branch* save-into,jo-heap x|swap|xx *current-free-address,jo-heap* xxx|swap|x 0 save-into,jo-heap << address, string[address, length], address >> *current-free-address,jo-heap* over sub *jo-size* div swap save end ; define-macro : then << address, string[address, length] -- string[address, length] >> x|swap|xx *current-free-address,jo-heap* over sub *jo-size* div swap save end ; define-macro the following shows how to define factorial : factorial << number -- number >> dup one? if end then dup sub1 factorial mul end ; define-function for the code and more info :: code on github the cicada nymph is for teaching purpose at first and |
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