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Diffstat (limited to 'entries/adirar111/wasm/fib.wat')
| -rw-r--r-- | entries/adirar111/wasm/fib.wat | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/entries/adirar111/wasm/fib.wat b/entries/adirar111/wasm/fib.wat new file mode 100644 index 0000000..6ec9b69 --- /dev/null +++ b/entries/adirar111/wasm/fib.wat @@ -0,0 +1,27 @@ +;; iterative fib(n) in web assembly text format (wat) +;; this gets compiled to the fib.wasm binary +;; and gets fetched via a data URL in index.js +(module + (export "fib" (func $fib)) + (func $fib (param $n i32) (result i32) + (local $last i32) + (local $sum i32) + (local $i i32) + (local $tmp i32) + (if (i32.lt_s (local.get $n) (i32.const 2)) + (return (local.get $n)) + ) + (local.set $last (i32.const 0)) + (local.set $sum (i32.const 1)) + (local.set $i (i32.const 2)) + (local.set $n (i32.add (local.get $n) (i32.const 1))) + (loop $loop + (local.set $tmp (local.get $sum)) + (local.set $sum (i32.add (local.get $sum) (local.get $last))) + (local.set $last (local.get $tmp)) + (local.set $i (i32.add (local.get $i) (i32.const 1))) + (br_if $loop (i32.lt_s (local.get $i) (local.get $n))) + ) + (return (local.get $sum)) + ) +) |