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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is [Open Source Virtual Machine.].
*
* The Initial Developer of the Original Code is
* Adobe System Incorporated.
* Portions created by the Initial Developer are Copyright (C) 2004-2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Adobe AS3 Team
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef __avmplus_Coder__
#define __avmplus_Coder__
namespace avmplus
{
class CodeWriter {
public:
CodeWriter();
virtual ~CodeWriter();
virtual void write(FrameState* state, const byte *pc, AbcOpcode opcode, Traits *type);
virtual void writeOp1(FrameState* state, const byte *pc, AbcOpcode opcode, uint32_t opd1, Traits *type);
virtual void writeOp2(FrameState* state, const byte *pc, AbcOpcode opcode, uint32_t opd1, uint32_t opd2, Traits* type);
virtual void writeInterfaceCall(FrameState* state, const byte *pc, AbcOpcode opcode, uintptr_t opd1, uint32_t opd2, Traits* type);
virtual void writeNip(FrameState* state, const byte *pc);
virtual void writeCheckNull(FrameState* state, uint32_t index);
virtual void writeCoerce(FrameState* state, uint32_t index, Traits* type);
virtual void writePrologue(FrameState* state, const byte *pc);
virtual void writeEpilogue(FrameState* state);
virtual void writeBlockStart(FrameState* state);
virtual void writeOpcodeVerified(FrameState* state, const byte *pc, AbcOpcode opcode);
virtual void writeFixExceptionsAndLabels(FrameState* state, const byte *pc);
virtual void formatOperand(PrintWriter& buffer, Value& v);
virtual void cleanup();
// convenience functions
void write(FrameState* state, const byte *pc, AbcOpcode opcode);
void writeOp1(FrameState* state, const byte *pc, AbcOpcode opcode, uint32_t opd1);
void writeOp2(FrameState* state, const byte *pc, AbcOpcode opcode, uint32_t opd1, uint32_t opd2);
};
#if defined FEATURE_TEEWRITER
class TeeWriter : public CodeWriter {
public:
CodeWriter* coder1; // deleted elsewhere
CodeWriter* coder2;
TeeWriter(CodeWriter* coder1, CodeWriter* coder2);
~TeeWriter();
void write(FrameState* state, const byte* pc, AbcOpcode opcode, Traits *type);
void writeOp1(FrameState* state, const byte *pc, AbcOpcode opcode, uint32_t opd1, Traits* type);
void writeOp2(FrameState* state, const byte *pc, AbcOpcode opcode, uint32_t opd1, uint32_t opd2, Traits* type);
void writeInterfaceCall(FrameState* state, const byte *pc, AbcOpcode opcode, uintptr_t opd1, uint32_t opd2, Traits* type);
void writeNip(FrameState* state, const byte *pc);
void writeCheckNull(FrameState* state, uint32_t index);
void writeCoerce(FrameState* state, uint32_t index, Traits *type);
void writePrologue(FrameState* state, const byte *pc);
void writeEpilogue(FrameState* state);
void writeBlockStart(FrameState* state);
void writeOpcodeVerified(FrameState* state, const byte *pc, AbcOpcode opcode);
void writeFixExceptionsAndLabels(FrameState* state, const byte *pc);
void formatOperand(PrintWriter& buffer, Value& v);
void cleanup();
};
#endif // FEATURE_TEEWRITER
class NullWriter : public CodeWriter {
public:
CodeWriter* coder; // the next leg of the pipeline
NullWriter(CodeWriter* coder);
~NullWriter();
void write(FrameState* state, const byte* pc, AbcOpcode opcode, Traits *type);
void writeOp1(FrameState* state, const byte *pc, AbcOpcode opcode, uint32_t opd1, Traits *type);
void writeOp2(FrameState* state, const byte *pc, AbcOpcode opcode, uint32_t opd1, uint32_t opd2, Traits* type);
void writeInterfaceCall(FrameState* state, const byte *pc, AbcOpcode opcode, uintptr_t opd1, uint32_t opd2, Traits* type);
void writeNip(FrameState* state, const byte *pc);
void writeCheckNull(FrameState* state, uint32_t index);
void writeCoerce(FrameState* state, uint32_t index, Traits *type);
void writePrologue(FrameState* state, const byte *pc);
void writeEpilogue(FrameState* state);
void writeBlockStart(FrameState* state);
void writeOpcodeVerified(FrameState* state, const byte *pc, AbcOpcode opcode);
void writeFixExceptionsAndLabels(FrameState* state, const byte *pc);
void formatOperand(PrintWriter& buffer, Value& v);
void cleanup();
};
#ifdef VMCFG_LOOKUP_CACHE
/**
* helper class for building the layout of a lookup cache, used during
* jit compilation or wordcode translation.
*/
class LookupCacheBuilder
{
// entry i has an imm30 value that represents the multiname whose entry in the MethodEnv's lookup cache is 'i'
uint32_t* caches;
// number of entries in 'caches'
int num_caches;
public:
// next free entry in 'caches'
int next_cache;
uint32_t get_entry(int i);
public:
LookupCacheBuilder();
/** allocate a new cache slot or reuse an existing one with the same imm30 */
uint32_t allocateCacheSlot(uint32_t imm30);
void cleanup();
};
#endif
}
#endif /* __avmplus_Coder__ */