Function Module

deps/v8/test/mjsunit/asm/atomics-compareexchange.js:5–66

(stdlib, foreign, heap, offset)

// found in the LICENSE file.

function Module(stdlib, foreign, heap, offset) {
  "use asm";
  var MEM8 = new stdlib.Int8Array(heap, offset);
  var MEM16 = new stdlib.Int16Array(heap, offset);
  var MEM32 = new stdlib.Int32Array(heap, offset);
  var MEMU8 = new stdlib.Uint8Array(heap, offset);
  var MEMU16 = new stdlib.Uint16Array(heap, offset);
  var MEMU32 = new stdlib.Uint32Array(heap, offset);
  var compareExchange = stdlib.Atomics.compareExchange;
  var fround = stdlib.Math.fround;

  function compareExchangei8(i, o, n) {
    i = i | 0;
    o = o | 0;
    n = n | 0;
    return compareExchange(MEM8, i, o, n)|0;
  }

  function compareExchangei16(i, o, n) {
    i = i | 0;
    o = o | 0;
    n = n | 0;
    return compareExchange(MEM16, i, o, n)|0;
  }

  function compareExchangei32(i, o, n) {
    i = i | 0;
    o = o | 0;
    n = n | 0;
    return compareExchange(MEM32, i, o, n)|0;
  }

  function compareExchangeu8(i, o, n) {
    i = i | 0;
    o = o >>> 0;
    n = n >>> 0;
    return compareExchange(MEMU8, i, o, n)>>>0;
  }

  function compareExchangeu16(i, o, n) {
    i = i | 0;
    o = o >>> 0;
    n = n >>> 0;
    return compareExchange(MEMU16, i, o, n)>>>0;
  }

  function compareExchangeu32(i, o, n) {
    i = i | 0;
    o = o >>> 0;
    n = n >>> 0;
    return compareExchange(MEMU32, i, o, n)>>>0;
  }

  return {
    compareExchangei8: compareExchangei8,
    compareExchangei16: compareExchangei16,
    compareExchangei32: compareExchangei32,
    compareExchangeu8: compareExchangeu8,