sourcepawn2: jitcraft/Opcodes.h@06a0015b6a5c

     1 /*

     2  * Copyright (C) 2012 David Anderson

     3  *

     4  * This file is part of JITCraft.

     5  *

     6  * JITCraft is free software: you can redistribute it and/or modify it under

     7  * the terms of the GNU General Public License as published by the Free

     8  * Software Foundation, either version 3 of the License, or (at your option)

     9  * any later version.

    10  *

    11  * Foobar is distributed in the hope that it will be useful, but WITHOUT ANY

    12  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

    13  * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

    14  *

    15  * You should have received a copy of the GNU General Public License along with

    16  * JITCraft. If not, see http://www.gnu.org/licenses/.

    17  */

    18 #ifndef _include_opcodes_h_

    19 #define _include_opcodes_h_

    21 #include <assert.h>

    22 #include <stdio.h>

    24 namespace ke {

    26 enum Opcode

    27 {

    28 #define OPDEF(name, number, text, length, uses, defs)   \

    29     name = number,

    30 #include "Opcodes.tbl"

    31 #undef OPDEF

    32     OPCODES_TOTAL

    33 };

    35 #define OPDEF(name, number, text, length, uses, defs)   \

    36 static const unsigned name##_LENGTH = length;

    37 #include "Opcodes.tbl"

    38 #undef OPDEF

    40 struct OpInfo

    41 {

    42     const char *name;

    43     int length;

    44     int nuses;

    45     int ndefs;

    46 };

    48 typedef unsigned char bytecode;

    50 extern OpInfo OpcodeInfo[];

    52 static inline Opcode

    53 Invert(Opcode op)

    54 {

    55     switch (op) {

    56       case OP_JEQ:

    57         return OP_JNE;

    58       case OP_JNE:

    59         return OP_JEQ;

    60       case OP_JG:

    61         return OP_JLE;

    62       case OP_JGE:

    63         return OP_JL;

    64       case OP_JL:

    65         return OP_JGE;

    66       default:

    67         assert(op == OP_JLE);

    68         return OP_JG;

    69     }

    70 }

    72 static inline int

    73 READ_INT32(bytecode *pc)

    74 {

    75     return *reinterpret_cast<int *>(pc + 1);

    76 }

    77 static inline unsigned

    78 READ_UINT32(bytecode *pc)

    79 {

    80     return *reinterpret_cast<unsigned *>(pc + 1);

    81 }

    82 static inline float

    83 READ_FLOAT(bytecode *pc)

    84 {

    85     return *reinterpret_cast<float *>(pc + 1);

    86 }

    88 class Code;

    90 void Disassemble(Code *code, FILE *fp);

    92 }

    94 #endif // _include_opcodes_h_

author	David Anderson <dvander@alliedmods.net>
	Mon Jul 23 01:19:44 2012 -0700 (2012-07-23)
changeset 85	06a0015b6a5c
parent 59	b7d61ddb3c8d
permissions	-rw-r--r--