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details in opcode list

This commit is contained in:
Roberto Ierusalimschy 2010-10-13 13:45:54 -03:00
parent cd0ebd0a80
commit f3026c36c2
2 changed files with 7 additions and 6 deletions
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6
lopcodes.c
View File

@ -1,5 +1,5 @@
/*
** $Id: lopcodes.c,v 1.42 2010/02/26 20:40:29 roberto Exp roberto $
** $Id: lopcodes.c,v 1.43 2010/03/12 19:14:06 roberto Exp roberto $
** See Copyright Notice in lua.h
*/
@ -48,11 +48,11 @@ LUAI_DDEF const char *const luaP_opnames[NUM_OPCODES+1] = {
"FORLOOP",
"FORPREP",
"TFORCALL",
"TFORLOOP",
"SETLIST",
"CLOSE",
"CLOSURE",
"VARARG",
"TFORLOOP",
"EXTRAARG",
NULL
};
@ -96,11 +96,11 @@ LUAI_DDEF const lu_byte luaP_opmodes[NUM_OPCODES] = {
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_FORLOOP */
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_FORPREP */
,opmode(0, 0, OpArgN, OpArgU, iABC) /* OP_TFORCALL */
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_TFORLOOP */
,opmode(0, 0, OpArgU, OpArgU, iABC) /* OP_SETLIST */
,opmode(0, 0, OpArgN, OpArgN, iABC) /* OP_CLOSE */
,opmode(0, 1, OpArgU, OpArgN, iABx) /* OP_CLOSURE */
,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_VARARG */
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_TFORLOOP */
,opmode(0, 0, OpArgU, OpArgU, iAx) /* OP_EXTRAARG */
};

7
lopcodes.h
View File

@ -1,5 +1,5 @@
/*
** $Id: lopcodes.h,v 1.134 2010/02/26 20:40:29 roberto Exp roberto $
** $Id: lopcodes.h,v 1.135 2010/03/12 19:14:06 roberto Exp roberto $
** Opcodes for Lua virtual machine
** See Copyright Notice in lua.h
*/
@ -17,6 +17,7 @@
`A' : 8 bits
`B' : 9 bits
`C' : 9 bits
'Ax' : 26 bits ('A', 'B', and 'C' together)
`Bx' : 18 bits (`B' and `C' together)
`sBx' : signed Bx
@ -212,6 +213,8 @@ OP_FORLOOP,/* A sBx R(A)+=R(A+2);
OP_FORPREP,/* A sBx R(A)-=R(A+2); pc+=sBx */
OP_TFORCALL,/* A C R(A+3), ... ,R(A+2+C) := R(A)(R(A+1), R(A+2)); */
OP_TFORLOOP,/* A sBx if R(A+1) ~= nil then { R(A)=R(A+1); pc += sBx }*/
OP_SETLIST,/* A B C R(A)[(C-1)*FPF+i] := R(A+i), 1 <= i <= B */
OP_CLOSE,/* A close all variables in the stack up to (>=) R(A)*/
@ -219,8 +222,6 @@ OP_CLOSURE,/* A Bx R(A) := closure(KPROTO[Bx]) */
OP_VARARG,/* A B R(A), R(A+1), ..., R(A+B-2) = vararg */
OP_TFORLOOP,/* A sBx if R(A+1) ~= nil then { R(A)=R(A+1); pc += sBx }*/
OP_EXTRAARG/* Ax extra (larger) argument for previous opcode */
} OpCode;