dmcallis
65a0592776
Source code drop for the Actionscript virtual machine in the Adobe Flash Player for December 2013
70 lines
2.6 KiB
C++
70 lines
2.6 KiB
C++
/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 4 -*- */
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/* vi: set ts=4 sw=4 expandtab: (add to ~/.vimrc: set modeline modelines=5) */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "avmplus.h"
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namespace avmplus
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{
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#ifdef VMCFG_WORDCODE
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# ifdef VMCFG_DIRECT_THREADED
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# define NEW_OPCODE(n) ((uintptr_t)opcode_labels[n])
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# else
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# ifdef _DEBUG
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# define NEW_OPCODE(opcode) ((opcode) | ((opcode) << 16)) // aids debugging
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# else
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# define NEW_OPCODE(opcode) opcode
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# endif
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# endif
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// Abstract Base class
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class WordcodeTranslator : public CodeWriter
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{
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public:
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WordcodeTranslator() { };
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virtual ~WordcodeTranslator() { };
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// In all cases below, pc points to the opcode.
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virtual void computeExceptionFixups() = 0;
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// Call before every instruction to handle exception range translation and
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// fix up branches to this address
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virtual void fixExceptionsAndLabels(const uint8_t *pc) = 0;
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// Paste up the translated code and install it in info
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virtual uint32_t epilogue(uintptr_t** code_result = NULL) = 0;
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// Handle specific instructions or instruction classes
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virtual void emitOp0(const uint8_t *pc, WordOpcode opcode) = 0;
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void emitOp0(WordOpcode opcode) { emitOp0(NULL, opcode); }
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virtual void emitOp1(const uint8_t *pc, WordOpcode opcode) = 0;
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virtual void emitOp1(WordOpcode opcode, uint32_t operand) = 0;
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virtual void emitOp2(const uint8_t *pc, WordOpcode opcode) = 0;
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virtual void emitOp2(WordOpcode opcode, uint32_t op1, uint32_t op2) = 0;
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#ifdef DEBUGGER
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virtual void emitDebug(const uint8_t *pc) = 0;
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#endif
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virtual void emitRelativeJump(const uint8_t *pc, WordOpcode opcode) = 0;
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virtual void emitLookupswitch(const uint8_t *pc) = 0;
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virtual void emitLabel(const uint8_t *pc) = 0;
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virtual void emitPushbyte(const uint8_t *pc) = 0;
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virtual void emitPushshort(const uint8_t *pc) = 0;
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virtual void emitPushint(const uint8_t *pc) = 0;
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virtual void emitPushuint(const uint8_t *pc) = 0;
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virtual void emitGetscopeobject(const uint8_t *pc) = 0;
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#ifdef SUPERWORD_PROFILING
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static void swprofStart();
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static void swprofStop();
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static void swprofCode(const uint32_t* start, const uint32_t* limit);
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static void swprofPC(const uint32_t* pc);
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#endif
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};
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#endif // AVMPUS_WORD_CODE
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}
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