commit 5c2dd7a9e0a5b871a71ba66c4683cd88fe4f5aa4
parent 93d93a0bfbc30f1176e973e1238b51e560eeb233
Author: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Mon, 22 May 2000 15:44:24 -0300
array `luaK_opproperties' keeps delta stack and mode for each opcode
Diffstat:
| M | lcode.c | | | 258 | ++++++++++++++++++++++++++++++++++++------------------------------------------- |
| M | lcode.h | | | 10 | +++++++++- |
| M | lopcodes.h | | | 4 | ++-- |
| M | lparser.c | | | 10 | +++++----- |
| M | ltests.c | | | 87 | +++++++++++++++++++++++++++----------------------------------------------------- |
| M | lvm.c | | | 4 | ++-- |
6 files changed, 166 insertions(+), 207 deletions(-)
diff --git a/lcode.c b/lcode.c
@@ -1,5 +1,5 @@
/*
-** $Id: lcode.c,v 1.29 2000/05/08 19:32:53 roberto Exp roberto $
+** $Id: lcode.c,v 1.30 2000/05/15 19:48:04 roberto Exp roberto $
** Code generator for Lua
** See Copyright Notice in lua.h
*/
@@ -37,7 +37,7 @@ static Instruction previous_instruction (FuncState *fs) {
int luaK_jump (FuncState *fs) {
- int j = luaK_code0(fs, OP_JMP);
+ int j = luaK_code1(fs, OP_JMP, NO_JUMP);
if (j == fs->lasttarget) { /* possible jumps to this jump? */
luaK_concat(fs, &j, fs->jlt); /* keep them on hold */
fs->jlt = NO_JUMP;
@@ -279,7 +279,7 @@ static void luaK_testgo (FuncState *fs, expdesc *v, int invert, OpCode jump) {
SET_OPCODE(*previous, invertjump(GET_OPCODE(*previous)));
}
else
- luaK_code0(fs, jump);
+ luaK_code1(fs, jump, NO_JUMP);
luaK_concat(fs, exitlist, fs->pc-1); /* insert last jump in `exitlist' */
luaK_patchlist(fs, *golist, luaK_getlabel(fs));
*golist = NO_JUMP;
@@ -324,10 +324,11 @@ void luaK_tostack (LexState *ls, expdesc *v, int onlyone) {
if (ISJUMP(previous))
luaK_concat(fs, &v->u.l.t, fs->pc-1); /* put `previous' in t. list */
else {
- j = code_label(fs, OP_JMP, 0); /* to jump over both pushes */
+ j = code_label(fs, OP_JMP, NO_JUMP); /* to jump over both pushes */
luaK_deltastack(fs, -1); /* next PUSHes may be skipped */
}
p_nil = code_label(fs, OP_PUSHNILJMP, 0);
+ luaK_deltastack(fs, -1); /* next PUSH is skipped */
p_1 = code_label(fs, OP_PUSHINT, 1);
luaK_patchlist(fs, j, luaK_getlabel(fs));
}
@@ -394,12 +395,12 @@ void luaK_posfix (LexState *ls, int op, expdesc *v1, expdesc *v2) {
case '/': luaK_code0(fs, OP_DIV); break;
case '^': luaK_code0(fs, OP_POW); break;
case TK_CONCAT: luaK_code1(fs, OP_CONCAT, 2); break;
- case TK_EQ: luaK_code0(fs, OP_JMPEQ); break;
- case TK_NE: luaK_code0(fs, OP_JMPNE); break;
- case '>': luaK_code0(fs, OP_JMPGT); break;
- case '<': luaK_code0(fs, OP_JMPLT); break;
- case TK_GE: luaK_code0(fs, OP_JMPGE); break;
- case TK_LE: luaK_code0(fs, OP_JMPLE); break;
+ case TK_EQ: luaK_code1(fs, OP_JMPEQ, NO_JUMP); break;
+ case TK_NE: luaK_code1(fs, OP_JMPNE, NO_JUMP); break;
+ case '>': luaK_code1(fs, OP_JMPGT, NO_JUMP); break;
+ case '<': luaK_code1(fs, OP_JMPLT, NO_JUMP); break;
+ case TK_GE: luaK_code1(fs, OP_JMPGE, NO_JUMP); break;
+ case TK_LE: luaK_code1(fs, OP_JMPLE, NO_JUMP); break;
}
}
}
@@ -415,196 +416,120 @@ int luaK_code1 (FuncState *fs, OpCode o, int arg1) {
}
+#define VD 100 /* flag for variable delta */
+
int luaK_code2 (FuncState *fs, OpCode o, int arg1, int arg2) {
Instruction i = previous_instruction(fs);
- int delta = 0;
- enum {iO, iU, iS, iAB, iP} mode; /* instruction format (or iP to optimize) */
- mode = iP;
-
+ int delta = luaK_opproperties[o].delta;
+ int optm = 0; /* 1 when there is an optimization */
switch (o) {
case OP_CLOSURE:
delta = -arg2+1;
- mode = iAB;
- break;
-
- case OP_SETLINE:
- mode = iU;
- break;
-
- case OP_CALL:
- mode = iAB;
- break;
-
- case OP_PUSHINT:
- delta = 1;
- mode = iS;
break;
case OP_SETTABLE:
- delta = -arg2;
- mode = iAB;
- break;
-
case OP_SETLIST:
- delta = -(arg2+1);
- mode = iAB;
+ delta = -arg2;
break;
case OP_SETMAP:
delta = -2*(arg1+1);
- mode = iU;
- break;
-
- case OP_FORLOOP:
- delta = -3;
- arg1 = NO_JUMP;
- mode = iS;
- break;
-
- case OP_SETLOCAL:
- case OP_SETGLOBAL:
- delta = -1;
- mode = iU;
- break;
-
- case OP_FORPREP:
- case OP_JMP:
- arg1 = NO_JUMP;
- mode = iS;
- break;
-
- case OP_LFORPREP:
- delta = 3;
- arg1 = NO_JUMP;
- mode = iS;
- break;
-
- case OP_LFORLOOP:
- delta = -4;
- arg1 = NO_JUMP;
- mode = iS;
- break;
-
- case OP_END:
- case OP_PUSHNILJMP:
- case OP_NOT:
- mode = iO;
- break;
-
- case OP_PUSHSTRING:
- case OP_PUSHNUM:
- case OP_PUSHNEGNUM:
- case OP_PUSHUPVALUE:
- case OP_GETLOCAL:
- case OP_GETGLOBAL:
- case OP_PUSHSELF:
- case OP_CREATETABLE:
- delta = 1;
- mode = iU;
- break;
-
- case OP_JMPLT:
- case OP_JMPLE:
- case OP_JMPGT:
- case OP_JMPGE:
- delta = -2;
- arg1 = NO_JUMP;
- mode = iS;
- break;
-
- case OP_MULT:
- case OP_DIV:
- case OP_POW:
- delta = -1;
- mode = iO;
break;
case OP_RETURN:
if (GET_OPCODE(i) == OP_CALL && GETARG_B(i) == MULT_RET) {
SET_OPCODE(i, OP_TAILCALL);
SETARG_B(i, arg1);
+ optm = 1;
}
- else mode = iU;
break;
case OP_PUSHNIL:
delta = arg1;
switch(GET_OPCODE(i)) {
- case OP_PUSHNIL: SETARG_U(i, GETARG_U(i)+arg1); break;
- default: mode = iU; break;
+ case OP_PUSHNIL: SETARG_U(i, GETARG_U(i)+arg1); optm = 1; break;
+ default: break;
}
break;
case OP_POP:
delta = -arg1;
switch(GET_OPCODE(i)) {
- case OP_SETTABLE: SETARG_B(i, GETARG_B(i)+arg1); break;
- default: mode = iU; break;
+ case OP_SETTABLE: SETARG_B(i, GETARG_B(i)+arg1); optm = 1; break;
+ default: break;
}
break;
case OP_GETTABLE:
- delta = -1;
switch(GET_OPCODE(i)) {
- case OP_PUSHSTRING: SET_OPCODE(i, OP_GETDOTTED); break; /* `t.x' */
- case OP_GETLOCAL: SET_OPCODE(i, OP_GETINDEXED); break; /* `t[i]' */
- default: mode = iO; break;
+ case OP_PUSHSTRING: /* `t.x' */
+ SET_OPCODE(i, OP_GETDOTTED);
+ optm = 1;
+ break;
+ case OP_GETLOCAL: /* `t[i]' */
+ SET_OPCODE(i, OP_GETINDEXED);
+ optm = 1;
+ break;
+ default: break;
}
break;
case OP_ADD:
- delta = -1;
switch(GET_OPCODE(i)) {
- case OP_PUSHINT: SET_OPCODE(i, OP_ADDI); break; /* `a+k' */
- default: mode = iO; break;
+ case OP_PUSHINT: SET_OPCODE(i, OP_ADDI); optm = 1; break; /* `a+k' */
+ default: break;
}
break;
case OP_SUB:
- delta = -1;
switch(GET_OPCODE(i)) {
- case OP_PUSHINT: i = CREATE_S(OP_ADDI, -GETARG_S(i)); break; /* `a-k' */
- default: mode = iO; break;
+ case OP_PUSHINT: /* `a-k' */
+ i = CREATE_S(OP_ADDI, -GETARG_S(i));
+ optm = 1;
+ break;
+ default: break;
}
break;
case OP_CONCAT:
delta = -arg1+1;
switch(GET_OPCODE(i)) {
- case OP_CONCAT: SETARG_U(i, GETARG_U(i)+1); break; /* `a..b..c' */
- default: mode = iU; break;
+ case OP_CONCAT: /* `a..b..c' */
+ SETARG_U(i, GETARG_U(i)+1);
+ optm = 1;
+ break;
+ default: break;
}
break;
case OP_MINUS:
switch(GET_OPCODE(i)) {
- case OP_PUSHINT: SETARG_S(i, -GETARG_S(i)); break; /* `-k' */
- case OP_PUSHNUM: SET_OPCODE(i, OP_PUSHNEGNUM); break; /* `-k' */
- default: mode = iO; break;
+ case OP_PUSHINT: /* `-k' */
+ SETARG_S(i, -GETARG_S(i));
+ optm = 1;
+ break;
+ case OP_PUSHNUM: /* `-k' */
+ SET_OPCODE(i, OP_PUSHNEGNUM);
+ optm = 1;
+ break;
+ default: break;
}
break;
case OP_JMPNE:
- delta = -2;
- if (i == CREATE_U(OP_PUSHNIL, 1)) /* `a~=nil' */
+ if (i == CREATE_U(OP_PUSHNIL, 1)) { /* `a~=nil' */
i = CREATE_S(OP_JMPT, NO_JUMP);
- else {
- arg1 = NO_JUMP;
- mode = iS;
+ optm = 1;
}
break;
case OP_JMPEQ:
- delta = -2;
if (i == CREATE_U(OP_PUSHNIL, 1)) { /* `a==nil' */
i = CREATE_0(OP_NOT);
delta = -1; /* just undo effect of previous PUSHNIL */
- }
- else {
- arg1 = NO_JUMP;
- mode = iS;
+ optm = 1;
}
break;
@@ -612,11 +537,9 @@ int luaK_code2 (FuncState *fs, OpCode o, int arg1, int arg2) {
case OP_JMPF:
case OP_JMPONT:
case OP_JMPONF:
- delta = -1;
- arg1 = NO_JUMP;
switch (GET_OPCODE(i)) {
- case OP_NOT: i = CREATE_S(invertjump(o), NO_JUMP); break;
- default: mode = iS; break;
+ case OP_NOT: i = CREATE_S(invertjump(o), NO_JUMP); optm = 1; break;
+ default: break;
}
break;
@@ -625,19 +548,23 @@ int luaK_code2 (FuncState *fs, OpCode o, int arg1, int arg2) {
case OP_TAILCALL:
case OP_ADDI:
LUA_INTERNALERROR(L, "instruction used only for optimizations");
- return 0; /* to avoid warnings */
+ break;
+
+ default:
+ LUA_ASSERT(L, delta != VD, "invalid delta");
+ break;
}
luaK_deltastack(fs, delta);
- switch (mode) { /* handle instruction formats */
+ if (optm) { /* optimize: put instruction in place of last one */
+ fs->f->code[fs->pc-1] = i; /* change previous instruction */
+ return fs->pc-1; /* do not generate new instruction */
+ }
+ switch ((enum Mode)luaK_opproperties[o].mode) {
case iO: i = CREATE_0(o); break;
case iU: i = CREATE_U(o, arg1); break;
case iS: i = CREATE_S(o, arg1); break;
case iAB: i = CREATE_AB(o, arg1, arg2); break;
- case iP: { /* optimize: put instruction in place of last one */
- fs->f->code[fs->pc-1] = i; /* change previous instruction */
- return fs->pc-1;
- }
}
/* actually create the new instruction */
luaM_growvector(fs->L, fs->f->code, fs->pc, 1, Instruction, codeEM, MAX_INT);
@@ -645,3 +572,56 @@ int luaK_code2 (FuncState *fs, OpCode o, int arg1, int arg2) {
return fs->pc++;
}
+
+const struct OpProperties luaK_opproperties[OP_SETLINE+1] = {
+ {iO, 0}, /* OP_END */
+ {iU, 0}, /* OP_RETURN */
+ {iAB, 0}, /* OP_CALL */
+ {iAB, 0}, /* OP_TAILCALL */
+ {iU, VD}, /* OP_PUSHNIL */
+ {iU, VD}, /* OP_POP */
+ {iS, 1}, /* OP_PUSHINT */
+ {iU, 1}, /* OP_PUSHSTRING */
+ {iU, 1}, /* OP_PUSHNUM */
+ {iU, 1}, /* OP_PUSHNEGNUM */
+ {iU, 1}, /* OP_PUSHUPVALUE */
+ {iU, 1}, /* OP_GETLOCAL */
+ {iU, 1}, /* OP_GETGLOBAL */
+ {iO, -1}, /* OP_GETTABLE */
+ {iU, 0}, /* OP_GETDOTTED */
+ {iU, 0}, /* OP_GETINDEXED */
+ {iU, 1}, /* OP_PUSHSELF */
+ {iU, 1}, /* OP_CREATETABLE */
+ {iU, -1}, /* OP_SETLOCAL */
+ {iU, -1}, /* OP_SETGLOBAL */
+ {iAB, VD}, /* OP_SETTABLE */
+ {iAB, VD}, /* OP_SETLIST */
+ {iU, VD}, /* OP_SETMAP */
+ {iO, -1}, /* OP_ADD */
+ {iS, 0}, /* OP_ADDI */
+ {iO, -1}, /* OP_SUB */
+ {iO, -1}, /* OP_MULT */
+ {iO, -1}, /* OP_DIV */
+ {iO, -1}, /* OP_POW */
+ {iU, VD}, /* OP_CONCAT */
+ {iO, 0}, /* OP_MINUS */
+ {iO, 0}, /* OP_NOT */
+ {iS, -2}, /* OP_JMPNE */
+ {iS, -2}, /* OP_JMPEQ */
+ {iS, -2}, /* OP_JMPLT */
+ {iS, -2}, /* OP_JMPLE */
+ {iS, -2}, /* OP_JMPGT */
+ {iS, -2}, /* OP_JMPGE */
+ {iS, -1}, /* OP_JMPT */
+ {iS, -1}, /* OP_JMPF */
+ {iS, -1}, /* OP_JMPONT */
+ {iS, -1}, /* OP_JMPONF */
+ {iS, 0}, /* OP_JMP */
+ {iO, 1}, /* OP_PUSHNILJMP */
+ {iS, 0}, /* OP_FORPREP */
+ {iS, -3}, /* OP_FORLOOP */
+ {iS, 3}, /* OP_LFORPREP */
+ {iS, -4}, /* OP_LFORLOOP */
+ {iAB, VD}, /* OP_CLOSURE */
+ {iU, 0} /* OP_SETLINE */
+};
diff --git a/lcode.h b/lcode.h
@@ -1,5 +1,5 @@
/*
-** $Id: lcode.h,v 1.11 2000/04/07 19:35:20 roberto Exp roberto $
+** $Id: lcode.h,v 1.12 2000/04/12 18:47:03 roberto Exp roberto $
** Code generator for Lua
** See Copyright Notice in lua.h
*/
@@ -20,6 +20,14 @@
#define NO_JUMP (-1)
+enum Mode {iO, iU, iS, iAB}; /* instruction format */
+
+extern const struct OpProperties {
+ char mode;
+ signed char delta;
+} luaK_opproperties[];
+
+
void luaK_error (LexState *ls, const char *msg);
int luaK_code0 (FuncState *fs, OpCode o);
int luaK_code1 (FuncState *fs, OpCode o, int arg1);
diff --git a/lopcodes.h b/lopcodes.h
@@ -1,5 +1,5 @@
/*
-** $Id: lopcodes.h,v 1.60 2000/04/27 17:39:15 roberto Exp roberto $
+** $Id: lopcodes.h,v 1.61 2000/05/15 19:48:04 roberto Exp roberto $
** Opcodes for Lua virtual machine
** See Copyright Notice in lua.h
*/
@@ -112,7 +112,7 @@ OP_SETLOCAL,/* L x - LOC[l]=x */
OP_SETGLOBAL,/* K x - VAR[KSTR[k]]=x */
OP_SETTABLE,/* A B v a_a-a_1 i t (pops b values) t[i]=v */
-OP_SETLIST,/* A B v_b-v_0 t t t[i+a*FPF]=v_i */
+OP_SETLIST,/* A B v_b-v_1 t t t[i+a*FPF]=v_i */
OP_SETMAP,/* U v_u k_u - v_0 k_0 t t t[k_i]=v_i */
OP_ADD,/* - y x x+y */
diff --git a/lparser.c b/lparser.c
@@ -1,5 +1,5 @@
/*
-** $Id: lparser.c,v 1.86 2000/05/12 18:12:04 roberto Exp roberto $
+** $Id: lparser.c,v 1.87 2000/05/15 19:48:04 roberto Exp roberto $
** LL(1) Parser and code generator for Lua
** See Copyright Notice in lua.h
*/
@@ -626,12 +626,12 @@ static int listfields (LexState *ls) {
checklimit(ls, n, MAXARG_A*LFIELDS_PER_FLUSH,
"items in a list initializer");
if (++mod_n == LFIELDS_PER_FLUSH) {
- luaK_code2(fs, OP_SETLIST, n/LFIELDS_PER_FLUSH - 1, LFIELDS_PER_FLUSH-1);
+ luaK_code2(fs, OP_SETLIST, n/LFIELDS_PER_FLUSH - 1, LFIELDS_PER_FLUSH);
mod_n = 0;
}
}
if (mod_n > 0)
- luaK_code2(fs, OP_SETLIST, n/LFIELDS_PER_FLUSH, mod_n-1);
+ luaK_code2(fs, OP_SETLIST, n/LFIELDS_PER_FLUSH, mod_n);
return n;
}
@@ -911,12 +911,12 @@ static void repeatstat (LexState *ls, int line) {
static void forbody (LexState *ls, OpCode prepfor, OpCode loopfor) {
FuncState *fs = ls->fs;
- int prep = luaK_code0(fs, prepfor);
+ int prep = luaK_code1(fs, prepfor, NO_JUMP);
int blockinit = luaK_getlabel(fs);
check(ls, TK_DO);
block(ls);
luaK_patchlist(fs, prep, luaK_getlabel(fs));
- luaK_patchlist(fs, luaK_code0(fs, loopfor), blockinit);
+ luaK_patchlist(fs, luaK_code1(fs, loopfor, NO_JUMP), blockinit);
}
diff --git a/ltests.c b/ltests.c
@@ -1,5 +1,5 @@
/*
-** $Id: ltests.c,v 1.18 2000/05/10 16:33:20 roberto Exp roberto $
+** $Id: ltests.c,v 1.19 2000/05/15 19:48:04 roberto Exp roberto $
** Internal Module for Debugging of the Lua Implementation
** See Copyright Notice in lua.h
*/
@@ -14,6 +14,7 @@
#include "lapi.h"
#include "lauxlib.h"
+#include "lcode.h"
#include "ldo.h"
#include "lmem.h"
#include "lopcodes.h"
@@ -49,71 +50,41 @@ static void setnameval (lua_State *L, lua_Object t, const char *name, int val) {
*/
-#define O(o) sprintf(buff, "%s", o)
-#define U(o) sprintf(buff, "%-12s%4u", o, GETARG_U(i))
-#define S(o) sprintf(buff, "%-12s%4d", o, GETARG_S(i))
-#define AB(o) sprintf(buff, "%-12s%4d %4d", o, GETARG_A(i), GETARG_B(i))
-
+static const char *const instrname[OP_SETLINE+1] = {
+ "END", "RETURN", "CALL", "TAILCALL", "PUSHNIL", "POP", "PUSHINT",
+ "PUSHSTRING", "PUSHNUM", "PUSHNEGNUM", "PUSHUPVALUE", "GETLOCAL",
+ "GETGLOBAL", "GETTABLE", "GETDOTTED", "GETINDEXED", "PUSHSELF",
+ "CREATETABLE", "SETLOCAL", "SETGLOBAL", "SETTABLE", "SETLIST", "SETMAP",
+ "ADD", "ADDI", "SUB", "MULT", "DIV", "POW", "CONCAT", "MINUS", "NOT",
+ "JMPNE", "JMPEQ", "JMPLT", "JMPLE", "JMPGT", "JMPGE", "JMPT", "JMPF",
+ "JMPONT", "JMPONF", "JMP", "PUSHNILJMP", "FORPREP", "FORLOOP", "LFORPREP",
+ "LFORLOOP", "CLOSURE", "SETLINE"
+};
static int pushop (lua_State *L, Instruction i) {
char buff[100];
- switch (GET_OPCODE(i)) {
- case OP_END: O("END"); lua_pushstring(L, buff); return 0;
- case OP_RETURN: U("RETURN"); break;
- case OP_CALL: AB("CALL"); break;
- case OP_TAILCALL: AB("TAILCALL"); break;
- case OP_PUSHNIL: U("PUSHNIL"); break;
- case OP_POP: U("POP"); break;
- case OP_PUSHINT: S("PUSHINT"); break;
- case OP_PUSHSTRING: U("PUSHSTRING"); break;
- case OP_PUSHNUM: U("PUSHNUM"); break;
- case OP_PUSHNEGNUM: U("PUSHNEGNUM"); break;
- case OP_PUSHUPVALUE: U("PUSHUPVALUE"); break;
- case OP_GETLOCAL: U("GETLOCAL"); break;
- case OP_GETGLOBAL: U("GETGLOBAL"); break;
- case OP_GETTABLE: O("GETTABLE"); break;
- case OP_GETDOTTED: U("GETDOTTED"); break;
- case OP_GETINDEXED: U("GETINDEXED"); break;
- case OP_PUSHSELF: U("PUSHSELF"); break;
- case OP_CREATETABLE: U("CREATETABLE"); break;
- case OP_SETLOCAL: U("SETLOCAL"); break;
- case OP_SETGLOBAL: U("SETGLOBAL"); break;
- case OP_SETTABLE: AB("SETTABLE"); break;
- case OP_SETLIST: AB("SETLIST"); break;
- case OP_SETMAP: U("SETMAP"); break;
- case OP_ADD: O("ADD"); break;
- case OP_ADDI: S("ADDI"); break;
- case OP_SUB: O("SUB"); break;
- case OP_MULT: O("MULT"); break;
- case OP_DIV: O("DIV"); break;
- case OP_POW: O("POW"); break;
- case OP_CONCAT: U("CONCAT"); break;
- case OP_MINUS: O("MINUS"); break;
- case OP_NOT: O("NOT"); break;
- case OP_JMPNE: S("JMPNE"); break;
- case OP_JMPEQ: S("JMPEQ"); break;
- case OP_JMPLT: S("JMPLT"); break;
- case OP_JMPLE: S("JMPLE"); break;
- case OP_JMPGT: S("JMPGT"); break;
- case OP_JMPGE: S("JMPGE"); break;
- case OP_JMPT: S("JMPT"); break;
- case OP_JMPF: S("JMPF"); break;
- case OP_JMPONT: S("JMPONT"); break;
- case OP_JMPONF: S("JMPONF"); break;
- case OP_JMP: S("JMP"); break;
- case OP_PUSHNILJMP: O("PUSHNILJMP"); break;
- case OP_FORPREP: S("FORPREP"); break;
- case OP_FORLOOP: S("FORLOOP"); break;
- case OP_LFORPREP: S("LFORPREP"); break;
- case OP_LFORLOOP: S("LFORLOOP"); break;
- case OP_CLOSURE: AB("CLOSURE"); break;
- case OP_SETLINE: U("SETLINE"); break;
+ OpCode o = GET_OPCODE(i);
+ const char *name = instrname[o];
+ switch ((enum Mode)luaK_opproperties[o].mode) {
+ case iO:
+ sprintf(buff, "%s", name);
+ break;
+ case iU:
+ sprintf(buff, "%-12s%4u", name, GETARG_U(i));
+ break;
+ case iS:
+ sprintf(buff, "%-12s%4d", name, GETARG_S(i));
+ break;
+ case iAB:
+ sprintf(buff, "%-12s%4d %4d", name, GETARG_A(i), GETARG_B(i));
+ break;
}
lua_pushstring(L, buff);
- return 1;
+ return (o != OP_END);
}
+
static void listcode (lua_State *L) {
lua_Object o = luaL_nonnullarg(L, 1);
lua_Object t = lua_createtable(L);
diff --git a/lvm.c b/lvm.c
@@ -1,5 +1,5 @@
/*
-** $Id: lvm.c,v 1.105 2000/05/08 19:32:53 roberto Exp roberto $
+** $Id: lvm.c,v 1.106 2000/05/15 19:48:04 roberto Exp roberto $
** Lua virtual machine
** See Copyright Notice in lua.h
*/
@@ -470,7 +470,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
case OP_SETLIST: {
int aux = GETARG_A(i) * LFIELDS_PER_FLUSH;
- int n = GETARG_B(i)+1;
+ int n = GETARG_B(i);
Hash *arr = avalue(top-n-1);
L->top = top-n; /* final value of `top' (in case of errors) */
for (; n; n--)
