From 5aa1f0d0bbd59043acc8faf031ad9cdfcbaabe28 Mon Sep 17 00:00:00 2001
From: crc <crc@noemail.net>
Date: Wed, 20 Nov 2019 21:03:07 +0000
Subject: [PATCH] nga-js: cache err:notfound, interpret addresses to improve
 performance a little

FossilOrigin-Name: 9f29e09fbb02eb5b5b316693228b0c0a28dff2316be84c74f829cc6cc635620c
---
 nga-js/nga.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/nga-js/nga.js b/nga-js/nga.js
index 569b88c..a162f31 100644
--- a/nga-js/nga.js
+++ b/nga-js/nga.js
@@ -89,6 +89,8 @@ var address = new Stack(ADDRESS_DEPTH);
 var image = new Array(IMAGE_SIZE);
 var vm = new Opcodes();
 var instructions = new Array(vm.II + 1);
+var notfound = 0;
+var interpret = 0;
 
 function rxPrepareVM() {
   ip = 0;
@@ -335,7 +337,6 @@ function execute(offset) {
   var opcode;
   address.sp = 1;
   ip = offset;
-  var notfound = d_xt_for("err:notfound");
   while (ip < IMAGE_SIZE) {
     opcode = image[ip];
     if (ip == notfound) {
@@ -444,10 +445,9 @@ function d_class_for(name) {
 function evaluate(s) {
   if (s.length == 0)
     return;
-  var i = d_xt_for("interpret");
   string_inject(s, 1471);
   data.push(1471);
-  execute(i);
+  execute(interpret);
 }
 
 function cls() {
@@ -478,6 +478,8 @@ function unu(src) {
 function go() {
   rxPrepareVM();
   loadInitialImage();
+  notfound = d_xt_for("err:notfound");
+  interpret = d_xt_for("interpret");
   document.getElementById("console").innerHTML = "";
   src = document.getElementById("input").value;
   tokens = unu(src).match(/\S+/g);