# HG changeset patch
# User Matthew Wild <mwild1@gmail.com>
# Date 1270561866 -3600
# Node ID ce2f27fa25a45b3d4ef09f18f836e03e7b549ae8
# Parent  3f055c9ab80e36fe9b50d7e6e5da4a131abaabc7
Use new notation for accessing instruction fields

diff -r 3f055c9ab80e -r ce2f27fa25a4 lvm.js
--- a/lvm.js	Tue Apr 06 14:49:52 2010 +0100
+++ b/lvm.js	Tue Apr 06 14:51:06 2010 +0100
@@ -200,27 +200,27 @@
 			switch(INS_OPCODE(instruction))
 			{
 			case OP_MOVE:
-				this.frame.reg[instruction[1]] = this.frame.reg[instruction[2]];
+				this.frame.reg[INS_A(instruction)] = this.frame.reg[INS_B(instruction)];
 				break;
 			case OP_LOADNIL:
-				for(var i = instruction[1];i<=instruction[2];i++)
+				for(var i = INS_A(instruction);i<=INS_B(instruction);i++)
 					this.frame.reg[i] = new LValue("nil", null);
 				break;
 			case OP_GETGLOBAL:
-				var name = this.frame.f.constants[instruction[2]];
-				this.frame.reg[instruction[1]] = this.frame.f.environment.index(name);
+				var name = this.frame.f.constants[INS_Bx(instruction)];
+				this.frame.reg[INS_A(instruction)] = this.frame.f.environment.index(name);
 				break;
 			case OP_SETGLOBAL:
-				var name = this.frame.f.constants[instruction[2]];
+				var name = this.frame.f.constants[INS_Bx(instruction)];
 				this.frame.f.environment.setIndex(name, this.frame.reg[instruction[1]]);
 				break;
 			case OP_LOADK:
-				var value = this.frame.f.constants[instruction[2]];
-				this.frame.reg[instruction[1]] = value;
+				var value = this.frame.f.constants[INS_Bx(instruction)];
+				this.frame.reg[INS_A(instruction)] = value;
 				break;
 			case OP_CALL:
-				var f = this.frame.reg[instruction[1]].call(); // return JS or LValue
-				var args = this.frame.reg.splice(instruction[1]+1, instruction[1]+(instruction[2]-1));
+				var f = this.frame.reg[INS_A(instruction)].call(); // return JS or LValue
+				var args = this.frame.reg.slice(INS_A(instruction)+1, INS_A(instruction)+(INS_B(instruction)));
 				if(typeof(f) == "function")
 				{
 					// JS native function