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new instruction OP_LOADKX (to replace OP_LOADK with extra argument)

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Roberto Ierusalimschy
2011-04-07 15:14:12 -03:00
parent a958b711f5
commit 427ee519db
6 changed files with 27 additions and 19 deletions
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7
lopcodes.h
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@@ -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).