split up z80 opcodes into fns for Firefox

Makefile

@@ -1,4 +1,12 @@
 
+all: src/cpu/z80fast.js
+
+src/cpu/z80.js: src/cpu/z80.coffee
+	coffee -c $<
+
+src/cpu/z80fast.js: src/cpu/buildz80.js src/cpu/z80.js 
+	node $< > $@
+
 check:
 	closure-compiler src/*.js src/cpu/*.js src/platform/*.js > /dev/null
 

src/cpu/buildz80.js

@@ -0,0 +1,12 @@
+"use strict";
+
+global.window = global;
+
+require('./z80.js');
+
+var _global = window;
+_global.buildZ80({
+	applyContention: false
+});
+console.log('var Z80_fast = ' + _global.Z80 + '');
+

src/cpu/z80.coffee

@@ -1248,9 +1248,10 @@ window.buildZ80 = (opts) ->
 					"if (regPairs[#{rpPC}] == #{(address + 1) & 0xffff} && !(#{action})) break;" for [address, action] in relevantTraps
 				)
 				clauses.push """
-					case #{i}:
+					case #{i}: { var fn#{i} = function() {
 						#{trapCode.join("\n")}
 						#{runString}
+					}; fn#{i}(); }
 						break;
 				"""
 		"""