michael@0: 
michael@0: var buf = new ArrayBuffer(4096);
michael@0: var f64 = new Float64Array(buf);
michael@0: var i32 = new Int32Array(buf);
michael@0: var u32 = new Uint32Array(buf);
michael@0: 
michael@0: function ffi(d) {
michael@0:   str = String(d);
michael@0: }
michael@0: 
michael@0: 
michael@0: function FFI1(glob, imp, b) {
michael@0:     "use asm";
michael@0: 
michael@0:     var i8=new glob.Int8Array(b);var u8=new glob.Uint8Array(b);
michael@0:     var i16=new glob.Int16Array(b);var u16=new glob.Uint16Array(b);
michael@0:     var i32=new glob.Int32Array(b);var u32=new glob.Uint32Array(b);
michael@0:     var f32=new glob.Float32Array(b);var f64=new glob.Float64Array(b);
michael@0: 
michael@0:     var ffi=imp.ffi;
michael@0: 
michael@0:     function g() {
michael@0:       ffi(+f64[0])
michael@0:     }
michael@0:     return g
michael@0: }
michael@0: 
michael@0: g = FFI1(this, {ffi:ffi}, buf);
michael@0: 
michael@0: 
michael@0: // that sounds dangerous!
michael@0: var a = [0,1,0xffff0000,0x7fff0000,0xfff80000,0x7ff80000,0xfffc0000,0x7ffc0000,0xffffffff,0x0000ffff,0x00008fff7];
michael@0: for (i of a) {
michael@0:     for (j of a) {
michael@0:         u32[0] = i;
michael@0:         u32[1] = j;
michael@0: 
michael@0:         print(f64[0]+" (input)");
michael@0:         //assertEq(f(), f64[0]);
michael@0: 
michael@0:         g();
michael@0:         assertEq(str, String(f64[0]));
michael@0:     }
michael@0: }