first commit

tests/wasm/fib.wat

@@ -0,0 +1,35 @@
+;; tests/wasm/fib.wat
+(module
+  (import "env" "log" (func $log (param i32 i32)))
+
+  (memory (export "memory") 1)
+  (data (i32.const 0) "fib called\n")
+
+  (func $fib_impl (param $n i32) (result i32)
+    local.get $n
+    i32.const 2
+    i32.lt_s
+    if (result i32)
+      local.get $n
+    else
+      local.get $n
+      i32.const 1
+      i32.sub
+      call $fib_impl
+      local.get $n
+      i32.const 2
+      i32.sub
+      call $fib_impl
+      i32.add
+    end
+  )
+
+  (func (export "fib") (param $n i32) (result i32)
+    i32.const 0
+    i32.const 11
+    call $log
+
+    local.get $n
+    call $fib_impl
+  )
+)

tests/wasm/fib.zig

@@ -0,0 +1,5 @@
+extern "env" fn log(ptr: [*]u8, len: i32) void;
+
+export fn init() void {
+    log(@ptrCast(@constCast("Hello world!\n")), 13);
+}