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ravi/src/lopcodes.c

698 lines
24 KiB

/*
** $Id: lopcodes.c,v 1.55.1.1 2017/04/19 17:20:42 roberto Exp $
** Opcodes for Lua virtual machine
** See Copyright Notice in lua.h
*/
/*
** Portions Copyright (C) 2015-2021 Dibyendu Majumdar
*/
#define lopcodes_c
#define LUA_CORE
#include "lprefix.h"
#include <stddef.h>
#include "lopcodes.h"
#include "lobject.h"
#include "lstate.h"
#include "ldebug.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "ravi_membuf.h"
/* ORDER OP */
LUAI_DDEF const char *const luaP_opnames[NUM_OPCODES+1] = {
"MOVE",
"LOADK",
"LOADKX",
"LOADBOOL",
"LOADNIL",
"GETUPVAL",
"GETTABUP",
"GETTABLE",
"SETTABUP",
"SETUPVAL",
"SETTABLE",
"NEWTABLE",
"SELF",
"ADD",
"SUB",
"MUL",
"MOD",
"POW",
"DIV",
"IDIV",
"BAND",
"BOR",
"BXOR",
"SHL",
"SHR",
"UNM",
"BNOT",
"NOT",
"LEN",
"CONCAT",
"JMP",
"EQ",
"LT",
"LE",
"TEST",
"TESTSET",
"CALL",
"TAILCALL",
"RETURN",
"FORLOOP",
"FORPREP",
"TFORCALL",
"TFORLOOP",
"SETLIST",
"CLOSURE",
"VARARG",
"EXTRAARG",
"NEW_IARRAY", /* A R(A) := array of int */
"NEW_FARRAY", /* A R(A) := array of float */
"LOADIZ", /* A R(A) := tointeger(0) */
"LOADFZ", /* A R(A) := tonumber(0) */
"UNMF", /* A B R(A) := -R(B) floating point */
"UNMI", /* A B R(A) := -R(B) integer */
"ADDFF", /* A B C R(A) := RK(B) + RK(C) */
"ADDFI", /* A B C R(A) := RK(B) + RK(C) */
"ADDII", /* A B C R(A) := RK(B) + RK(C) */
"SUBFF", /* A B C R(A) := RK(B) - RK(C) */
"SUBFI", /* A B C R(A) := RK(B) - RK(C) */
"SUBIF", /* A B C R(A) := RK(B) - RK(C) */
"SUBII", /* A B C R(A) := RK(B) - RK(C) */
"MULFF", /* A B C R(A) := RK(B) * RK(C) */
"MULFI", /* A B C R(A) := RK(B) * RK(C) */
"MULII", /* A B C R(A) := RK(B) * RK(C) */
"DIVFF", /* A B C R(A) := RK(B) / RK(C) */
"DIVFI", /* A B C R(A) := RK(B) / RK(C) */
"DIVIF", /* A B C R(A) := RK(B) / RK(C) */
"DIVII", /* A B C R(A) := RK(B) / RK(C) */
"TOINT", /* A R(A) := toint(R(A)) */
"TOFLT", /* A R(A) := tofloat(R(A)) */
"TOTAB", /* A R(A) := to_table(R(A)) */
"TOSTRING",
"TOBOOLEAN",
"TOCLOSURE",
"TOTYPE",
"TOINT_NIL", /* A R(A) := toint(R(A)) */
"TOFLT_NIL", /* A R(A) := tofloat(R(A)) */
"TOTAB_NIL", /* A R(A) := to_table(R(A)) */
"TOSTRING_NIL",
"TOBOOLEAN_NIL",
"TOCLOSURE_NIL",
"TOTYPE_NIL",
"TOIARRAY", /* A R(A) := to_arrayi(R(A)) */
"TOFARRAY", /* A R(A) := to_arrayf(R(A)) */
"MOVEI", /* A B R(A) := R(B) */
"MOVEF", /* A B R(A) := R(B) */
"MOVEIARRAY", /* A B R(A) := R(B), check R(B) is array of int */
"MOVEFARRAY", /* A B R(A) := R(B), check R(B) is array of floats */
"MOVETAB", /* A B R(A) := R(B), check R(B) is a table */
"IARRAY_GET",/* A B C R(A) := R(B)[RK(C)] where R(B) is array of integers and RK(C) is int */
"FARRAY_GET",/* A B C R(A) := R(B)[RK(C)] where R(B) is array of floats and RK(C) is int */
"IARRAY_SET",/* A B C R(A)[RK(B)] := RK(C) where RK(B) is an int, R(A) is array of ints, and RK(C) is an int */
"FARRAY_SET",/* A B C R(A)[RK(B)] := RK(C) where RK(B) is an int, R(A) is array of floats, and RK(C) is an float */
"IARRAY_SETI",/* A B C R(A)[RK(B)] := RK(C) where RK(B) is an int, R(A) is array of ints, and RK(C) is an int */
"FARRAY_SETF",/* A B C R(A)[RK(B)] := RK(C) where RK(B) is an int, R(A) is array of floats, and RK(C) is an float */
"FORLOOP_IP",
"FORLOOP_I1",
"FORPREP_IP",
"FORPREP_I1",
"SETUPVALI", /* A B UpValue[B] := tointeger(R(A)) */
"SETUPVALF", /* A B UpValue[B] := tonumber(R(A)) */
"SETUPVAL_IARRAY", /* A B UpValue[B] := toarrayint(R(A)) */
"SETUPVAL_FARRAY", /* A B UpValue[B] := toarrayflt(R(A)) */
"SETUPVALT", /* A B UpValue[B] := to_table(R(A)) */
"BAND_II",/* A B C R(A) := RK(B) & RK(C) */
"BOR_II", /* A B C R(A) := RK(B) | RK(C) */
"BXOR_II",/* A B C R(A) := RK(B) ~ RK(C) */
"SHL_II", /* A B C R(A) := RK(B) << RK(C) */
"SHR_II", /* A B C R(A) := RK(B) >> RK(C) */
"BNOT_I", /* A B R(A) := ~R(B) */
"EQ_II", /* A B C if ((RK(B) == RK(C)) ~= A) then pc++ */
"EQ_FF", /* A B C if ((RK(B) == RK(C)) ~= A) then pc++ */
"LT_II", /* A B C if ((RK(B) < RK(C)) ~= A) then pc++ */
"LT_FF", /* A B C if ((RK(B) < RK(C)) ~= A) then pc++ */
"LE_II", /* A B C if ((RK(B) <= RK(C)) ~= A) then pc++ */
"LE_FF", /* A B C if ((RK(B) <= RK(C)) ~= A) then pc++ */
"TABLE_GETFIELD", /* A B C R(A) := R(B)[RK(C)], string key */
"TABLE_SETFIELD", /* A B C R(A)[RK(B)] := RK(C), string key */
"TABLE_SELF_SK", /* A B C R(A+1) := R(B); R(A) := R(B)[RK(C)] */
"GETI", /* A B C R(A) := R(B)[RK(C)], integer key */
"SETI", /* A B C R(A)[RK(B)] := RK(C), integer key */
"GETFIELD", /* _SK */ /* A B C R(A) := R(B)[RK(C)], string key */
"SELF_SK", /* _SK*/ /* A B C R(A+1) := R(B); R(A) := R(B)[RK(C)] */
"SETFIELD", /*_SK */ /* A B C R(A)[RK(B)] := RK(C), string key */
"GETTABUP_SK",
"DEFER",
NULL
};
#define opmode(t,a,b,c,m) (((t)<<7) | ((a)<<6) | ((b)<<4) | ((c)<<2) | (m))
LUAI_DDEF const lu_byte luaP_opmodes[NUM_OPCODES] = {
/* T A B C mode opcode */
opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_MOVE */
,opmode(0, 1, OpArgK, OpArgN, iABx) /* OP_LOADK */
,opmode(0, 1, OpArgN, OpArgN, iABx) /* OP_LOADKX */
,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_LOADBOOL */
,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_LOADNIL */
,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_GETUPVAL */
,opmode(0, 1, OpArgU, OpArgK, iABC) /* OP_GETTABUP */
,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_GETTABLE */
,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_SETTABUP */
,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_SETUPVAL */
,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_SETTABLE */
,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_NEWTABLE */
,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_SELF */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_ADD */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_SUB */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_MUL */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_MOD */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_POW */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_DIV */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_IDIV */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_BAND */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_BOR */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_BXOR */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_SHL */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_SHR */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_UNM */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_BNOT */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_NOT */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_LEN */
,opmode(0, 1, OpArgR, OpArgR, iABC) /* OP_CONCAT */
,opmode(0, 0, OpArgR, OpArgN, iAsBx) /* OP_JMP */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_EQ */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_LT */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_LE */
,opmode(1, 0, OpArgN, OpArgU, iABC) /* OP_TEST */
,opmode(1, 1, OpArgR, OpArgU, iABC) /* OP_TESTSET */
,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_CALL */
,opmode(0, 1, OpArgU, OpArgU, iABC) /* OP_TAILCALL */
,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_RETURN */
,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, 1, OpArgU, OpArgN, iABx) /* OP_CLOSURE */
,opmode(0, 1, OpArgU, OpArgN, iABC) /* OP_VARARG */
,opmode(0, 0, OpArgU, OpArgU, iAx) /* OP_EXTRAARG */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_NEW_IARRAY A R(A) := array of int */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_NEW_FARRAY A R(A) := array of float */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_LOADIZ A R(A) := tointeger(0) */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_LOADFZ A R(A) := tonumber(0) */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_RAVI_UNMF A B R(A) := -R(B) floating point */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_RAVI_UNMI A B R(A) := -R(B) integer */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_ADDFF A B C R(A) := RK(B) + RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_ADDFI A B C R(A) := RK(B) + RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_ADDII A B C R(A) := RK(B) + RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_SUBFF A B C R(A) := RK(B) - RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_SUBFI A B C R(A) := RK(B) - RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_SUBIF A B C R(A) := RK(B) - RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_SUBII A B C R(A) := RK(B) - RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_MULFF A B C R(A) := RK(B) * RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_MULFI A B C R(A) := RK(B) * RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_MULII A B C R(A) := RK(B) * RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_DIVFF A B C R(A) := RK(B) / RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_DIVFI A B C R(A) := RK(B) / RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_DIVIF A B C R(A) := RK(B) / RK(C) */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_DIVII A B C R(A) := RK(B) / RK(C) */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOINT A R(A) := toint(R(A)) */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOFLT A R(A) := tonumber(R(A)) */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOTAB A R(A) := check_table(R(A)) */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOSTRING */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOBOOLEAN */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOCLOSURE */
,opmode(0, 1, OpArgK, OpArgN, iABx) /* OP_RAVI_TOTYPE */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOINT_NIL A R(A) := toint(R(A)) */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOFLT_NIL A R(A) := tonumber(R(A)) */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOTAB_NIL A R(A) := check_table(R(A)) */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOSTRING_NIL */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOBOOLEAN_NIL */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOCLOSURE_NIL */
,opmode(0, 1, OpArgK, OpArgN, iABx) /* OP_RAVI_TOTYPE_NIL */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOIARRAY A R(A) := check_array_of_int(R(A)) */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_TOFARRAY A R(A) := check_array_of_float(R(A)) */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_RAVI_MOVEI A B R(A) := tointeger(R(B)) */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_RAVI_MOVEF A B R(A) := tonumber(R(B)) */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_RAVI_MOVEIARRAY A B R(A) := R(B), check R(B) is array of int */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_RAVI_MOVEFARRAY A B R(A) := R(B), check R(B) is array of floats */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_RAVI_MOVETAB A B R(A) := R(B), check R(B) is a table */
,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_RAVI_IARRAY_GET A B C R(A) := R(B)[RK(C)] where R(B) is array of integers and RK(C) is int */
,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_RAVI_FARRAY_GET A B C R(A) := R(B)[RK(C)] where R(B) is array of floats and RK(C) is int */
,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_IARRAY_SET A B C R(A)[RK(B)] := RK(C) where RK(B) is an int, R(A) is array of ints, and RK(C) is an int */
,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_FARRAY_SET A B C R(A)[RK(B)] := RK(C) where RK(B) is an int, R(A) is array of floats, and RK(C) is an float */
,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_IARRAY_SETI A B C R(A)[RK(B)] := RK(C) where RK(B) is an int, R(A) is array of ints, and RK(C) is an int */
,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_FARRAY_SETF A B C R(A)[RK(B)] := RK(C) where RK(B) is an int, R(A) is array of floats, and RK(C) is an float */
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_RAVI_FORLOOP_IP */
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_RAVI_FORLOOP_I1 */
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_RAVI_FORPREP_IP */
,opmode(0, 1, OpArgR, OpArgN, iAsBx) /* OP_RAVI_FORPREP_I1 */
,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_RAVI_SETUPVALI */
,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_RAVI_SETUPVALF */
,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_RAVI_SETUPVAL_IARRAY */
,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_RAVI_SETUPVAL_FARRAY */
,opmode(0, 0, OpArgU, OpArgN, iABC) /* OP_RAVI_SETUPVALT */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_BAND_II */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_BOR_II */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_BXOR_II */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_SHL_II */
,opmode(0, 1, OpArgK, OpArgK, iABC) /* OP_RAVI_SHR_II */
,opmode(0, 1, OpArgR, OpArgN, iABC) /* OP_RAVI_BNOT_I */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_EQ_II */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_EQ_FF */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_LT_II */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_LT_FF */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_LE_II */
,opmode(1, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_LE_FF */
,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_RAVI_TABLE_GETFIELD */
,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_TABLE_SETFIELD */
,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_RAVI_TABLE_SELF_SK */
,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_RAVI_GETI */
,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_SETI */
,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_RAVI_GETFIELD */
,opmode(0, 1, OpArgR, OpArgK, iABC) /* OP_RAVI_SELF_SK */
,opmode(0, 0, OpArgK, OpArgK, iABC) /* OP_RAVI_SETFIELD */
,opmode(0, 1, OpArgU, OpArgK, iABC) /* OP_RAVI_GETTABUP_SK */
,opmode(0, 1, OpArgN, OpArgN, iABC) /* OP_RAVI_DEFER */
};
#define UPVALNAME(x) ((f->upvalues[x].name) ? getstr(f->upvalues[x].name) : "-")
#define MYK(x) (-1-(x))
#define VOID(p) ((const void*)(p))
const char* raviP_instruction_to_str(char *buf, size_t n, Instruction i) {
OpCode o = GET_OPCODE(i);
int a = GETARG_A(i);
int b = GETARG_B(i);
int c = GETARG_C(i);
int ax = GETARG_Ax(i);
int bx = GETARG_Bx(i);
int sbx = GETARG_sBx(i);
snprintf(buf, n, "%s ", luaP_opnames[o]);
switch (getOpMode(o)) {
case iABC:
snprintf(buf+strlen(buf), n-strlen(buf), "A=%d", a);
if (getBMode(o) != OpArgN)
snprintf(buf + strlen(buf), n - strlen(buf), " B=%d", (getBMode(o) == OpArgK && ISK(b)) ? (MYK(INDEXK(b))) : b);
if (getCMode(o) != OpArgN)
snprintf(buf + strlen(buf), n - strlen(buf), " C=%d", (getCMode(o) == OpArgK && ISK(c)) ? (MYK(INDEXK(c))) : c);
break;
case iABx:
snprintf(buf + strlen(buf), n - strlen(buf), "A=%d", a);
if (getBMode(o) == OpArgK)
snprintf(buf + strlen(buf), n - strlen(buf), " Bx=%d", MYK(bx));
if (getBMode(o) == OpArgU)
snprintf(buf + strlen(buf), n - strlen(buf), " Bx=%d", bx);
break;
case iAsBx:
snprintf(buf + strlen(buf), n - strlen(buf), "As=%d Bx=%d", a, sbx);
break;
case iAx:
snprintf(buf + strlen(buf), n - strlen(buf), "Ax=%d", MYK(ax));
break;
}
return buf;
}
static void PrintString(membuff_t *mb, const TString* ts)
{
const char* s=getstr(ts);
size_t i,n=tsslen(ts);
membuff_add_fstring(mb, "%c",'"');
for (i=0; i<n; i++)
{
int c=(int)(unsigned char)s[i];
switch (c)
{
case '"': membuff_add_string(mb, "\\\""); break;
case '\\': membuff_add_string(mb, "\\\\"); break;
case '\a': membuff_add_string(mb, "\\a"); break;
case '\b': membuff_add_string(mb, "\\b"); break;
case '\f': membuff_add_string(mb, "\\f"); break;
case '\n': membuff_add_string(mb, "\\n"); break;
case '\r': membuff_add_string(mb, "\\r"); break;
case '\t': membuff_add_string(mb, "\\t"); break;
case '\v': membuff_add_string(mb, "\\v"); break;
default: if (isprint(c))
membuff_add_fstring(mb, "%c",c);
else
membuff_add_fstring(mb, "\\%03d",c);
}
}
membuff_add_fstring(mb, "%c",'"');
}
static void PrintConstant(membuff_t *mb, const Proto* f, int i)
{
const TValue* o=&f->k[i];
switch (ttype(o))
{
case LUA_TNIL:
membuff_add_fstring(mb, "nil");
break;
case LUA_TBOOLEAN:
membuff_add_fstring(mb, bvalue(o) ? "true" : "false");
break;
case LUA_TNUMFLT:
{
char buff[100];
sprintf(buff,LUA_NUMBER_FMT,fltvalue(o));
membuff_add_fstring(mb, "%s",buff);
if (buff[strspn(buff,"-0123456789")]=='\0') membuff_add_string(mb, ".0");
break;
}
case LUA_TNUMINT:
membuff_add_fstring(mb, LUA_INTEGER_FMT,ivalue(o));
break;
case LUA_TSHRSTR: case LUA_TLNGSTR:
PrintString(mb, tsvalue(o));
break;
default: /* cannot happen */
membuff_add_fstring(mb, "? type=%d",ttype(o));
break;
}
}
static void PrintCode(membuff_t *mb, const Proto* f)
{
const Instruction* code=f->code;
int pc,n=f->sizecode;
for (pc=0; pc<n; pc++)
{
Instruction i=code[pc];
OpCode o=GET_OPCODE(i);
int a=GETARG_A(i);
int b=GETARG_B(i);
int c=GETARG_C(i);
int ax=GETARG_Ax(i);
int bx=GETARG_Bx(i);
int sbx=GETARG_sBx(i);
int line=getfuncline(f,pc);
membuff_add_fstring(mb, "\t%d\t",pc+1);
if (line>0) membuff_add_fstring(mb, "[%d]\t",line); else membuff_add_fstring(mb, "[-]\t");
membuff_add_fstring(mb, "%-9s\t",luaP_opnames[o]);
switch (getOpMode(o))
{
case iABC:
membuff_add_fstring(mb, "%d",a);
if (getBMode(o)!=OpArgN) membuff_add_fstring(mb, " %d", (getBMode(o) == OpArgK && ISK(b)) ? (MYK(INDEXK(b))) : b);
if (getCMode(o)!=OpArgN) membuff_add_fstring(mb, " %d", (getCMode(o) == OpArgK && ISK(c)) ? (MYK(INDEXK(c))) : c);
break;
case iABx:
membuff_add_fstring(mb, "%d",a);
if (getBMode(o)==OpArgK) membuff_add_fstring(mb, " %d",MYK(bx));
if (getBMode(o)==OpArgU) membuff_add_fstring(mb, " %d",bx);
break;
case iAsBx:
membuff_add_fstring(mb, "%d %d",a,sbx);
break;
case iAx:
membuff_add_fstring(mb, "%d",MYK(ax));
break;
}
switch (o)
{
case OP_LOADK:
membuff_add_fstring(mb, "\t; "); PrintConstant(mb, f,bx);
break;
case OP_GETUPVAL:
case OP_RAVI_SETUPVALI:
case OP_RAVI_SETUPVALF:
case OP_RAVI_SETUPVAL_IARRAY:
case OP_RAVI_SETUPVAL_FARRAY:
case OP_RAVI_SETUPVALT:
case OP_SETUPVAL:
membuff_add_fstring(mb, "\t; %s",UPVALNAME(b));
break;
case OP_RAVI_GETTABUP_SK:
case OP_GETTABUP:
membuff_add_fstring(mb, "\t; %s",UPVALNAME(b));
if (ISK(c)) { membuff_add_string(mb, " "); PrintConstant(mb, f,INDEXK(c)); }
break;
case OP_SETTABUP:
membuff_add_fstring(mb, "\t; %s",UPVALNAME(a));
if (ISK(b)) { membuff_add_string(mb, " "); PrintConstant(mb, f,INDEXK(b)); }
if (ISK(c)) { membuff_add_string(mb, " "); PrintConstant(mb, f,INDEXK(c)); }
break;
case OP_GETTABLE:
case OP_RAVI_GETI:
case OP_RAVI_TABLE_GETFIELD:
case OP_RAVI_FARRAY_GET:
case OP_RAVI_IARRAY_GET:
case OP_SELF:
case OP_RAVI_GETFIELD:
case OP_RAVI_TABLE_SELF_SK:
case OP_RAVI_SELF_SK:
if (ISK(c)) { membuff_add_fstring(mb, "\t; "); PrintConstant(mb, f,INDEXK(c)); }
break;
case OP_SETTABLE:
case OP_RAVI_SETI:
case OP_RAVI_TABLE_SETFIELD:
case OP_RAVI_SETFIELD:
case OP_RAVI_FARRAY_SET:
case OP_RAVI_FARRAY_SETF:
case OP_RAVI_IARRAY_SET:
case OP_RAVI_IARRAY_SETI:
case OP_ADD:
case OP_RAVI_ADDFF:
case OP_RAVI_ADDFI:
case OP_RAVI_ADDII:
case OP_SUB:
case OP_RAVI_SUBFF:
case OP_RAVI_SUBFI:
case OP_RAVI_SUBIF:
case OP_RAVI_SUBII:
case OP_MUL:
case OP_RAVI_MULFF:
case OP_RAVI_MULFI:
case OP_RAVI_MULII:
case OP_POW:
case OP_DIV:
case OP_RAVI_DIVFF:
case OP_RAVI_DIVFI:
case OP_RAVI_DIVIF:
case OP_RAVI_DIVII:
case OP_IDIV:
case OP_BAND:
case OP_RAVI_BAND_II:
case OP_BOR:
case OP_RAVI_BOR_II:
case OP_BXOR:
case OP_RAVI_BXOR_II:
case OP_SHL:
case OP_RAVI_SHL_II:
case OP_SHR:
case OP_RAVI_SHR_II:
case OP_EQ:
case OP_RAVI_EQ_II:
case OP_RAVI_EQ_FF:
case OP_LT:
case OP_RAVI_LT_II:
case OP_RAVI_LT_FF:
case OP_LE:
case OP_RAVI_LE_II:
case OP_RAVI_LE_FF:
if (ISK(b) || ISK(c))
{
membuff_add_fstring(mb, "\t; ");
if (ISK(b)) PrintConstant(mb, f,INDEXK(b)); else membuff_add_fstring(mb, "-");
membuff_add_string(mb, " ");
if (ISK(c)) PrintConstant(mb, f,INDEXK(c)); else membuff_add_fstring(mb, "-");
}
break;
case OP_JMP:
case OP_FORLOOP:
case OP_RAVI_FORLOOP_IP:
case OP_RAVI_FORLOOP_I1:
case OP_FORPREP:
case OP_RAVI_FORPREP_IP:
case OP_RAVI_FORPREP_I1:
case OP_TFORLOOP:
membuff_add_fstring(mb, "\t; to %d",sbx+pc+2);
break;
case OP_CLOSURE:
membuff_add_fstring(mb, "\t; %p",VOID(f->p[bx]));
break;
case OP_SETLIST:
if (c==0) membuff_add_fstring(mb, "\t; %d",(int)code[++pc]); else membuff_add_fstring(mb, "\t; %d",c);
break;
case OP_EXTRAARG:
membuff_add_fstring(mb, "\t; "); PrintConstant(mb, f,ax);
break;
default:
break;
}
membuff_add_fstring(mb, "\n");
}
}
#define SS(x) ((x==1)?"":"s")
#define S(x) (int)(x),SS(x)
static void PrintHeader(membuff_t *mb, const Proto* f)
{
const char* s=f->source ? getstr(f->source) : "=?";
if (*s=='@' || *s=='=')
s++;
else if (*s==LUA_SIGNATURE[0])
s="(bstring)";
else
s="(string)";
membuff_add_fstring(mb, "\n%s <%s:%d,%d> (%d instruction%s at %p)\n",
(f->linedefined==0)?"main":"function",s,
f->linedefined,f->lastlinedefined,
S(f->sizecode),VOID(f));
membuff_add_fstring(mb, "%d%s param%s, %d slot%s, %d upvalue%s, ",
(int)(f->numparams),f->is_vararg?"+":"",SS(f->numparams),
S(f->maxstacksize),S(f->sizeupvalues));
membuff_add_fstring(mb, "%d local%s, %d constant%s, %d function%s\n",
S(f->sizelocvars),S(f->sizek),S(f->sizep));
}
static void PrintDebug(membuff_t *mb, const Proto* f)
{
int i,n;
n=f->sizek;
membuff_add_fstring(mb, "constants (%d) for %p:\n",n,VOID(f));
for (i=0; i<n; i++)
{
membuff_add_fstring(mb, "\t%d\t",i+1);
PrintConstant(mb, f,i);
membuff_add_fstring(mb, "\n");
}
n=f->sizelocvars;
membuff_add_fstring(mb, "locals (%d) for %p:\n",n,VOID(f));
for (i=0; i<n; i++)
{
membuff_add_fstring(mb, "\t%d\t%s\t%d\t%d\n",
i,getstr(f->locvars[i].varname),f->locvars[i].startpc+1,f->locvars[i].endpc+1);
}
n=f->sizeupvalues;
membuff_add_fstring(mb, "upvalues (%d) for %p:\n",n,VOID(f));
for (i=0; i<n; i++)
{
membuff_add_fstring(mb, "\t%d\t%s\t%d\t%d\n",
i,UPVALNAME(i),f->upvalues[i].instack,f->upvalues[i].idx);
}
}
static void ravi_print_function(membuff_t *mb, const Proto* f, int full)
{
int i, n = f->sizep;
PrintHeader(mb, f);
PrintCode(mb, f);
if (full) PrintDebug(mb, f);
for (i = 0; i<n; i++) ravi_print_function(mb, f->p[i], full);
}
#define toproto(L,i) getproto(L->top+(i))
void ravi_dump_function(lua_State *L)
{
Proto* f;
membuff_t mb;
membuff_init(&mb, 4096);
f = toproto(L, -1);
ravi_print_function(&mb, f, 1);
ravi_writestring(L, mb.buf, strlen(mb.buf));
membuff_free(&mb);
}
static void setnameval(lua_State *L, const char *name, int val) {
lua_pushstring(L, name);
lua_pushinteger(L, val);
lua_settable(L, -3);
}
#define obj_at(L,k) (L->ci->func + (k))
#define getfuncline(f,pc) (((f)->lineinfo) ? (f)->lineinfo[pc] : -1)
static char *buildop2(Proto *p, int pc, char *buff, size_t len) {
int line = getfuncline(p, pc);
char tbuf[100];
raviP_instruction_to_str(tbuf, sizeof tbuf, p->code[pc]);
snprintf(buff, len, "(%4d) %4d - %s", line, pc, tbuf);
return buff;
}
int ravi_list_code(lua_State *L) {
int pc;
Proto *p;
p = getproto(obj_at(L, 1));
lua_newtable(L);
setnameval(L, "maxstack", p->maxstacksize);
setnameval(L, "numparams", p->numparams);
for (pc = 0; pc<p->sizecode; pc++) {
char buff[100];
lua_pushinteger(L, pc + 1);
lua_pushstring(L, buildop2(p, pc, buff, sizeof buff));
lua_settable(L, -3);
}
return 1;
}
int ravi_get_limits(lua_State *L) {
lua_createtable(L, 0, 5);
setnameval(L, "BITS_INT", LUAI_BITSINT);
setnameval(L, "MAXARG_Ax", MAXARG_Ax);
setnameval(L, "MAXARG_Bx", MAXARG_Bx);
setnameval(L, "MAXARG_sBx", MAXARG_sBx);
setnameval(L, "BITS_INT", LUAI_BITSINT);
setnameval(L, "LFPF", LFIELDS_PER_FLUSH);
setnameval(L, "NUM_OPCODES", NUM_OPCODES);
return 1;
}