From 427ee519db76b7a0747b5fc1d5dcf97092b5c0bf Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Thu, 7 Apr 2011 15:14:12 -0300
Subject: new instruction OP_LOADKX (to replace OP_LOADK with extra argument)

---
 lopcodes.h | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'lopcodes.h')

diff --git a/lopcodes.h b/lopcodes.h
index 9009b382..60d1492d 100644
--- a/lopcodes.h
+++ b/lopcodes.h
@@ -1,5 +1,5 @@
 /*
-** $Id: lopcodes.h,v 1.138 2011/02/01 18:03:10 roberto Exp roberto $
+** $Id: lopcodes.h,v 1.139 2011/02/07 12:24:42 roberto Exp roberto $
 ** Opcodes for Lua virtual machine
 ** See Copyright Notice in lua.h
 */
@@ -167,7 +167,8 @@ typedef enum {
 name		args	description
 ------------------------------------------------------------------------*/
 OP_MOVE,/*	A B	R(A) := R(B)					*/
-OP_LOADK,/*	A Bx	R(A) := Kst(Bx - 1)				*/
+OP_LOADK,/*	A Bx	R(A) := Kst(Bx)					*/
+OP_LOADKX,/*	A 	R(A) := Kst(extra arg)				*/
 OP_LOADBOOL,/*	A B C	R(A) := (Bool)B; if (C) pc++			*/
 OP_LOADNIL,/*	A B	R(A) := ... := R(B) := nil			*/
 OP_GETUPVAL,/*	A B	R(A) := UpValue[B]				*/
@@ -242,7 +243,7 @@ OP_EXTRAARG/*	Ax	extra (larger) argument for previous opcode	*/
   (*) In OP_SETLIST, if (B == 0) then B = `top'; if (C == 0) then next
   'instruction' is EXTRAARG(real C).
 
-  (*) In OP_LOADK, if (Bx == 0) then next 'instruction' is EXTRAARG(real Bx).
+  (*) In OP_LOADKX, the next 'instruction' is always EXTRAARG.
 
   (*) For comparisons, A specifies what condition the test should accept
   (true or false).
-- 
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