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42 lines
589 B
Plaintext
42 lines
589 B
Plaintext
-- tail recursion through higher-order functions
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function sumb((integer, integer) -> integer, integer, integer) : integer {
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push arg[1];
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push 0;
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eq;
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br {
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true: {
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push arg[2];
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ret;
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}
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false: {
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push arg[2];
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push 1;
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push arg[1];
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sub;
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push arg[0];
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tcall $ 2;
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}
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};
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}
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function sum'(integer, integer) : integer {
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push arg[1];
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push arg[0];
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add;
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push arg[0];
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calloc sum' 0;
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tcall sumb;
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}
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function sum(integer) : integer {
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push 0;
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push arg[0];
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tcall sum';
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}
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function main() {
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push 1000;
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tcall sum;
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}
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