1 files changed, 7 insertions, 0 deletions
diff --git a/src/parseTools.js b/src/parseTools.js
index 67d87a76..fad414ed 100644
--- a/src/parseTools.js
+++ b/src/parseTools.js
@@ -533,12 +533,19 @@ function IEEEUnHex(stringy) {
 function makeI64(low, high) {
   if (I64_MODE == 1) {
     return '[' + low + ',' + (high || '0') + ']';
+    // FIXME with this?       return '[unSign(' + low + ',32),' + (high ? ('unSign(' + high + ',32)') : '0') + ']';
   } else {
     assert(!high);
     return low;
   }
 }
 
+// Splits a number (an integer in a double, possibly > 32 bits) into an I64_MODE 1 i64 value
+function splitI64(value) {
+  assert(I64_MODE == 1);
+  return makeI64(value + '|0', 'Math.floor(' + value + '/4294967296)');
+}
+
 function makeCopyI64(value) {
   assert(I64_MODE == 1);