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Mozilla/mozilla/js/src/jsopcode.def
fur%netscape.com 53fed9d6ad This check-in is a first attempt at reducing JavaScript's dependency 
on NSPR.  In fact, the JS C-engine no longer depends on NSPR at all in
a single-threaded environment and the multi-threaded version relies on
NSPR strictly for its threading primitives.  This change was made for
several reasons:

 + To merge the js/src and js/ref directories, which differ only in that
   the former is designed to link with NSPR2, but the latter makes use of
   an NSPR1 subset.  The automatic generation of src from ref often led
   to confusion and sometimes to merge-related errors.

 + To avoid the requirement to link against multiple versions of NSPR
   when delivering JS binaries. (Different internal customers of JS have
   standardized upon different NSPR releases.)

 + To shield JS from incompatible changes to NSPR.

Most of the changes involved simple renaming of types, macros,
identifiers and file names, i.e. from pr* to js*.  In some cases, this
transformation resulted in name collisions and a different name was
chosen.  One place where renaming was *not* performed was in the
definition of simple scalar types, i.e. int32, uint16, etc.  The
jsotypes.h header file was specially handled so as to avoid typename
collision with NSPR types of the same name.


git-svn-id: svn://10.0.0.236/branches/SpiderMonkey140_BRANCH@10585 18797224-902f-48f8-a5cc-f745e15eee43
1998-09-21 17:45:48 +00:00

213 lines
13 KiB
Modula-2
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*
* JavaScript operation bytecodes.
*
* Includers must define an OPDEF macro of the following form:
*
* #define OPDEF(op,val,name,image,length,nuses,ndefs,prec,format) ...
*
* Selected arguments can be expanded in initializers. The op argument is
* expanded followed by comma in the JSOp enum (jsopcode.h), e.g. The value
* field must be dense for now, because jsopcode.c uses an OPDEF() expansion
* inside the js_CodeSpec[] initializer.
*
* Field Description
* op Bytecode name, which is the JSOp enumerator name
* value Bytecode value, which is the JSOp enumerator value
* name C string containing name for disassembler
* image C string containing "image" for pretty-printer, null if ugly
* length Number of bytes including any immediate operands
* nuses Number of stack slots consumed by bytecode, -1 if variadic
* ndefs Number of stack slots produced by bytecode
* prec Operator precedence, zero if not an operator
* format Bytecode plus immediate operand encoding format
*
* This file is best viewed with 116 columns:
01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345
*/
/* legend: op val name image len use def prec format */
/* Permanently-assigned bytecodes. */
OPDEF(JSOP_NOP, 0, "nop", NULL, 1, 0, 0, 0, JOF_BYTE)
OPDEF(JSOP_PUSH, 1, "push", NULL, 1, 0, 1, 0, JOF_BYTE)
OPDEF(JSOP_POPV, 2, "popv", NULL, 1, 1, 0, 0, JOF_BYTE)
OPDEF(JSOP_ENTERWITH, 3, "enterwith", NULL, 1, 1, 1, 0, JOF_BYTE)
OPDEF(JSOP_LEAVEWITH, 4, "leavewith", NULL, 1, 1, 0, 0, JOF_BYTE)
OPDEF(JSOP_RETURN, 5, "return", NULL, 1, 1, 0, 0, JOF_BYTE)
OPDEF(JSOP_GOTO, 6, "goto", NULL, 3, 0, 0, 0, JOF_JUMP)
OPDEF(JSOP_IFEQ, 7, "ifeq", NULL, 3, 1, 0, 0, JOF_JUMP)
OPDEF(JSOP_IFNE, 8, "ifne", NULL, 3, 1, 0, 0, JOF_JUMP)
OPDEF(JSOP_FORNAME, 9, "forname", NULL, 3, 1, 1, 0, JOF_CONST|JOF_NAME|JOF_SET)
OPDEF(JSOP_FORPROP, 10, "forprop", NULL, 3, 2, 1, 0, JOF_CONST|JOF_PROP|JOF_SET)
OPDEF(JSOP_FORELEM, 11, "forelem", NULL, 1, 3, 1, 0, JOF_BYTE |JOF_ELEM|JOF_SET)
OPDEF(JSOP_DUP, 12, "dup", NULL, 1, 1, 2, 0, JOF_BYTE)
OPDEF(JSOP_DUP2, 13, "dup2", NULL, 1, 2, 4, 0, JOF_BYTE)
OPDEF(JSOP_SETNAME, 14, "setname", NULL, 3, 1, 1, 1, JOF_CONST|JOF_NAME|JOF_SET)
OPDEF(JSOP_BITOR, 15, "bitor", "|", 1, 2, 1, 2, JOF_BYTE)
OPDEF(JSOP_BITXOR, 16, "bitxor", "^", 1, 2, 1, 3, JOF_BYTE)
OPDEF(JSOP_BITAND, 17, "bitand", "&", 1, 2, 1, 4, JOF_BYTE)
OPDEF(JSOP_EQ, 18, "eq", "==", 1, 2, 1, 5, JOF_BYTE)
OPDEF(JSOP_NE, 19, "ne", "!=", 1, 2, 1, 5, JOF_BYTE)
OPDEF(JSOP_LT, 20, "lt", "<", 1, 2, 1, 6, JOF_BYTE)
OPDEF(JSOP_LE, 21, "le", "<=", 1, 2, 1, 6, JOF_BYTE)
OPDEF(JSOP_GT, 22, "gt", ">", 1, 2, 1, 6, JOF_BYTE)
OPDEF(JSOP_GE, 23, "ge", ">=", 1, 2, 1, 6, JOF_BYTE)
OPDEF(JSOP_LSH, 24, "lsh", "<<", 1, 2, 1, 7, JOF_BYTE)
OPDEF(JSOP_RSH, 25, "rsh", ">>", 1, 2, 1, 7, JOF_BYTE)
OPDEF(JSOP_URSH, 26, "ursh", ">>>", 1, 2, 1, 7, JOF_BYTE)
OPDEF(JSOP_ADD, 27, "add", "+", 1, 2, 1, 8, JOF_BYTE)
OPDEF(JSOP_SUB, 28, "sub", "-", 1, 2, 1, 8, JOF_BYTE)
OPDEF(JSOP_MUL, 29, "mul", "*", 1, 2, 1, 9, JOF_BYTE)
OPDEF(JSOP_DIV, 30, "div", "/", 1, 2, 1, 9, JOF_BYTE)
OPDEF(JSOP_MOD, 31, "mod", "%", 1, 2, 1, 9, JOF_BYTE)
OPDEF(JSOP_NOT, 32, "not", "!", 1, 1, 1, 10, JOF_BYTE)
OPDEF(JSOP_BITNOT, 33, "bitnot", "~", 1, 1, 1, 10, JOF_BYTE)
OPDEF(JSOP_NEG, 34, "neg", "-", 1, 1, 1, 10, JOF_BYTE)
OPDEF(JSOP_NEW, 35, js_new_str, NULL, 3, -1, 1, 10, JOF_UINT16)
OPDEF(JSOP_DELNAME, 36, "delname", NULL, 3, 0, 1, 10, JOF_CONST|JOF_NAME|JOF_DEL)
OPDEF(JSOP_DELPROP, 37, "delprop", NULL, 3, 1, 1, 10, JOF_CONST|JOF_PROP|JOF_DEL)
OPDEF(JSOP_DELELEM, 38, "delelem", NULL, 1, 2, 1, 10, JOF_BYTE |JOF_ELEM|JOF_DEL)
OPDEF(JSOP_TYPEOF, 39, js_typeof_str,NULL, 1, 1, 1, 10, JOF_BYTE)
OPDEF(JSOP_VOID, 40, js_void_str, NULL, 1, 1, 1, 10, JOF_BYTE)
OPDEF(JSOP_INCNAME, 41, "incname", NULL, 3, 0, 1, 10, JOF_CONST|JOF_NAME|JOF_INC)
OPDEF(JSOP_INCPROP, 42, "incprop", NULL, 3, 1, 1, 10, JOF_CONST|JOF_PROP|JOF_INC)
OPDEF(JSOP_INCELEM, 43, "incelem", NULL, 1, 2, 1, 10, JOF_BYTE |JOF_ELEM|JOF_INC)
OPDEF(JSOP_DECNAME, 44, "decname", NULL, 3, 0, 1, 10, JOF_CONST|JOF_NAME|JOF_DEC)
OPDEF(JSOP_DECPROP, 45, "decprop", NULL, 3, 1, 1, 10, JOF_CONST|JOF_PROP|JOF_DEC)
OPDEF(JSOP_DECELEM, 46, "decelem", NULL, 1, 2, 1, 10, JOF_BYTE |JOF_ELEM|JOF_DEC)
OPDEF(JSOP_NAMEINC, 47, "nameinc", NULL, 3, 0, 1, 10, JOF_CONST|JOF_NAME|JOF_INC|JOF_POST)
OPDEF(JSOP_PROPINC, 48, "propinc", NULL, 3, 1, 1, 10, JOF_CONST|JOF_PROP|JOF_INC|JOF_POST)
OPDEF(JSOP_ELEMINC, 49, "eleminc", NULL, 1, 2, 1, 10, JOF_BYTE |JOF_ELEM|JOF_INC|JOF_POST)
OPDEF(JSOP_NAMEDEC, 50, "namedec", NULL, 3, 0, 1, 10, JOF_CONST|JOF_NAME|JOF_DEC|JOF_POST)
OPDEF(JSOP_PROPDEC, 51, "propdec", NULL, 3, 1, 1, 10, JOF_CONST|JOF_PROP|JOF_DEC|JOF_POST)
OPDEF(JSOP_ELEMDEC, 52, "elemdec", NULL, 1, 2, 1, 10, JOF_BYTE |JOF_ELEM|JOF_DEC|JOF_POST)
OPDEF(JSOP_GETPROP, 53, "getprop", NULL, 3, 1, 1, 11, JOF_CONST|JOF_PROP)
OPDEF(JSOP_SETPROP, 54, "setprop", NULL, 3, 2, 1, 1, JOF_CONST|JOF_PROP|JOF_SET)
OPDEF(JSOP_GETELEM, 55, "getelem", NULL, 1, 2, 1, 11, JOF_BYTE |JOF_ELEM)
OPDEF(JSOP_SETELEM, 56, "setelem", NULL, 1, 3, 1, 1, JOF_BYTE |JOF_ELEM|JOF_SET)
OPDEF(JSOP_PUSHOBJ, 57, "pushobj", NULL, 1, 0, 1, 0, JOF_BYTE)
OPDEF(JSOP_CALL, 58, "call", NULL, 3, -1, 1, 11, JOF_UINT16)
OPDEF(JSOP_NAME, 59, "name", NULL, 3, 0, 1, 12, JOF_CONST|JOF_NAME)
OPDEF(JSOP_NUMBER, 60, "number", NULL, 3, 0, 1, 12, JOF_CONST)
OPDEF(JSOP_STRING, 61, "string", NULL, 3, 0, 1, 12, JOF_CONST)
OPDEF(JSOP_ZERO, 62, "zero", "0", 1, 0, 1, 12, JOF_BYTE)
OPDEF(JSOP_ONE, 63, "one", "1", 1, 0, 1, 12, JOF_BYTE)
OPDEF(JSOP_NULL, 64, js_null_str, js_null_str, 1, 0, 1, 12, JOF_BYTE)
OPDEF(JSOP_THIS, 65, js_this_str, js_this_str, 1, 0, 1, 12, JOF_BYTE)
OPDEF(JSOP_FALSE, 66, js_false_str, js_false_str, 1, 0, 1, 12, JOF_BYTE)
OPDEF(JSOP_TRUE, 67, js_true_str, js_true_str, 1, 0, 1, 12, JOF_BYTE)
OPDEF(JSOP_OR, 68, "or", NULL, 3, 1, 0, 0, JOF_JUMP)
OPDEF(JSOP_AND, 69, "and", NULL, 3, 1, 0, 0, JOF_JUMP)
/* The switch bytecodes have variable length. */
OPDEF(JSOP_TABLESWITCH, 70, "tableswitch", NULL, -1, 1, 0, 0, JOF_TABLESWITCH)
OPDEF(JSOP_LOOKUPSWITCH, 71, "lookupswitch", NULL, -1, 1, 0, 0, JOF_LOOKUPSWITCH)
/* New, infallible/transitive identity ops. */
OPDEF(JSOP_NEW_EQ, 72, "eq", NULL, 1, 2, 1, 5, JOF_BYTE)
OPDEF(JSOP_NEW_NE, 73, "ne", NULL, 1, 2, 1, 5, JOF_BYTE)
/* Lexical closure constructor. */
OPDEF(JSOP_CLOSURE, 74, "closure", NULL, 3, 0, 1, 0, JOF_CONST)
/* Export and import ops. */
OPDEF(JSOP_EXPORTALL, 75, "exportall", NULL, 1, 0, 0, 0, JOF_BYTE)
OPDEF(JSOP_EXPORTNAME,76, "exportname", NULL, 3, 0, 0, 0, JOF_CONST|JOF_NAME)
OPDEF(JSOP_IMPORTALL, 77, "importall", NULL, 1, 1, 0, 0, JOF_BYTE)
OPDEF(JSOP_IMPORTPROP,78, "importprop", NULL, 3, 1, 0, 0, JOF_CONST|JOF_PROP|JOF_IMPORT)
OPDEF(JSOP_IMPORTELEM,79, "importelem", NULL, 3, 2, 0, 0, JOF_BYTE |JOF_ELEM|JOF_IMPORT)
/* Push object literal. */
OPDEF(JSOP_OBJECT, 80, "object", NULL, 3, 0, 1, 12, JOF_CONST)
/* Pop value and discard it. */
OPDEF(JSOP_POP, 81, "pop", NULL, 1, 1, 0, 0, JOF_BYTE)
/* Convert value to number, for unary +. */
OPDEF(JSOP_POS, 82, "pos", "+", 1, 1, 1, 10, JOF_BYTE)
/* Trap into debugger for breakpoint, etc. */
OPDEF(JSOP_TRAP, 83, "trap", NULL, 1, 0, 0, 0, JOF_BYTE)
/* Fast get/set ops for function arguments and local variables. */
OPDEF(JSOP_GETARG, 84, "getarg", NULL, 3, 0, 1, 12, JOF_QARG |JOF_NAME)
OPDEF(JSOP_SETARG, 85, "setarg", NULL, 3, 1, 1, 1, JOF_QARG |JOF_NAME|JOF_SET)
OPDEF(JSOP_GETVAR, 86, "getvar", NULL, 3, 0, 1, 12, JOF_QVAR |JOF_NAME)
OPDEF(JSOP_SETVAR, 87, "setvar", NULL, 3, 1, 1, 1, JOF_QVAR |JOF_NAME|JOF_SET)
/* Push unsigned 16-bit int constant. */
OPDEF(JSOP_UINT16, 88, "uint16", NULL, 3, 0, 1, 12, JOF_UINT16)
/* Object and array literal support. */
OPDEF(JSOP_NEWINIT, 89, "newinit", NULL, 1, 2, 1, 10, JOF_BYTE)
OPDEF(JSOP_ENDINIT, 90, "endinit", NULL, 1, 0, 0, 0, JOF_BYTE)
OPDEF(JSOP_INITPROP, 91, "initprop", NULL, 3, 1, 0, 0, JOF_CONST|JOF_PROP)
OPDEF(JSOP_INITELEM, 92, "initelem", NULL, 1, 2, 0, 0, JOF_BYTE |JOF_ELEM)
OPDEF(JSOP_DEFSHARP, 93, "defsharp", NULL, 3, 0, 0, 0, JOF_UINT16)
OPDEF(JSOP_USESHARP, 94, "usesharp", NULL, 3, 0, 1, 0, JOF_UINT16)
/* Fast inc/dec ops for args and local vars. */
OPDEF(JSOP_INCARG, 95, "incarg", NULL, 3, 0, 1, 10, JOF_QARG |JOF_NAME|JOF_INC)
OPDEF(JSOP_INCVAR, 96, "incvar", NULL, 3, 0, 1, 10, JOF_QVAR |JOF_NAME|JOF_INC)
OPDEF(JSOP_DECARG, 97, "decarg", NULL, 3, 0, 1, 10, JOF_QARG |JOF_NAME|JOF_DEC)
OPDEF(JSOP_DECVAR, 98, "decvar", NULL, 3, 0, 1, 10, JOF_QVAR |JOF_NAME|JOF_DEC)
OPDEF(JSOP_ARGINC, 99, "arginc", NULL, 3, 0, 1, 10, JOF_QARG |JOF_NAME|JOF_INC|JOF_POST)
OPDEF(JSOP_VARINC, 100,"varinc", NULL, 3, 0, 1, 10, JOF_QVAR |JOF_NAME|JOF_INC|JOF_POST)
OPDEF(JSOP_ARGDEC, 101,"argdec", NULL, 3, 0, 1, 10, JOF_QARG |JOF_NAME|JOF_DEC|JOF_POST)
OPDEF(JSOP_VARDEC, 102,"vardec", NULL, 3, 0, 1, 10, JOF_QVAR |JOF_NAME|JOF_DEC|JOF_POST)
/* ECMA-compliant for/in ops. */
OPDEF(JSOP_TOOBJECT, 103,"toobject", NULL, 1, 1, 1, 0, JOF_BYTE)
OPDEF(JSOP_FORNAME2, 104,"forname2", NULL, 3, 0, 1, 0, JOF_CONST|JOF_NAME|JOF_SET|JOF_FOR2)
OPDEF(JSOP_FORPROP2, 105,"forprop2", NULL, 3, 1, 1, 0, JOF_CONST|JOF_PROP|JOF_SET|JOF_FOR2)
OPDEF(JSOP_FORELEM2, 106,"forelem2", NULL, 1, 2, 1, 0, JOF_BYTE |JOF_ELEM|JOF_SET|JOF_FOR2)
OPDEF(JSOP_POP2, 107,"pop2", NULL, 1, 2, 0, 0, JOF_BYTE)
/* ECMA-complaint assignment ops. */
OPDEF(JSOP_BINDNAME, 108,"bindname", NULL, 3, 0, 1, 0, JOF_CONST|JOF_NAME)
OPDEF(JSOP_SETNAME2, 109,"setname2", NULL, 3, 2, 1, 1, JOF_CONST|JOF_NAME|JOF_SET)
/* Exception handling ops. */
OPDEF(JSOP_THROW, 110,"throw", NULL, 1, 1, 0, 0, JOF_BYTE)
/* 'in' and 'instanceof' ops. */
OPDEF(JSOP_IN, 111,js_in_str, js_in_str, 1, 2, 1, 6, JOF_BYTE)
OPDEF(JSOP_INSTANCEOF,112,js_instanceof_str,js_instanceof_str,1,2,1,6,JOF_BYTE)
/* debugger op */
OPDEF(JSOP_DEBUGGER, 113,"debugger", NULL, 1, 0, 0, 0, JOF_BYTE)
/* gosub/retsub for finally handling */
OPDEF(JSOP_GOSUB, 114,"gosub", NULL, 3, 0, 1, 0, JOF_JUMP)
OPDEF(JSOP_RETSUB, 115,"retsub", NULL, 1, 1, 0, 0, JOF_BYTE)
/* more exception handling ops */
OPDEF(JSOP_EXCEPTION, 116,"exception", NULL, 1, 0, 1, 0, JOF_BYTE)
OPDEF(JSOP_SETSP, 117,"setsp", NULL, 3, 0, 0, 0, JOF_UINT16)
/*
* ECMA-compliant switch statement ops.
* CONDSWITCH is a decompilable NOP; CASE is ===, POP, jump if true, re-push
* lval if false; and DEFAULT is POP lval and GOTO.
*/
OPDEF(JSOP_CONDSWITCH,118,"condswitch", NULL, 1, 0, 0, 0, JOF_BYTE)
OPDEF(JSOP_CASE, 119,"case", NULL, 3, 1, 0, 0, JOF_JUMP)
OPDEF(JSOP_DEFAULT, 120,"default", NULL, 3, 1, 0, 0, JOF_JUMP)
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