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/*
* HT Editor
* analy_alpha.cc
*
* Copyright (C) 1999-2002 Sebastian Biallas (sb@biallas.net)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <string.h>
#include "analy_alpha.h"
#include "analy_register.h"
#include "alphadis.h"
#include "htiobox.h"
#include "snprintf.h"
/*
*
*/
AnalyAlphaDisassembler::AnalyAlphaDisassembler()
{
}
void AnalyAlphaDisassembler::init(Analyser *A)
{
disasm = new Alphadis();
AnalyDisassembler::init(A);
}
/*
*
*/
void AnalyAlphaDisassembler::load(ObjectStream &f)
{
return AnalyDisassembler::load(f);
}
/*
*
*/
void AnalyAlphaDisassembler::done()
{
AnalyDisassembler::done();
}
ObjectID AnalyAlphaDisassembler::getObjectID() const
{
return ATOM_ANALY_ALPHA;
}
/*
*
*/
Address *AnalyAlphaDisassembler::branchAddr(OPCODE *opcode, branch_enum_t branchtype, bool examine)
{
Address *a = createAddress(((alphadis_insn *)opcode)->data);
if (examine && analy->validAddress(a, scvalid)) {
return a;
}
delete a;
return new InvalidAddress();
}
Address *AnalyAlphaDisassembler::createAddress(uint32 offset)
{
return new AddressFlat32(offset);
}
/*
*
*/
void AnalyAlphaDisassembler::examineOpcode(OPCODE *opcode)
{
}
/*
*
*/
branch_enum_t AnalyAlphaDisassembler::isBranch(OPCODE *opcode)
{
// FIXME: needs work!!
alphadis_insn *alpha_insn = (alphadis_insn *) opcode;
if (alpha_insn->valid) {
switch ((alpha_insn->table+alpha_insn->code)->type) {
case ALPHA_GROUP_BRA:
if (alpha_insn->table == alpha_instr_tbl) {
switch (alpha_insn->code) {
case 0x30:
return br_jump;
case 0x34:
return br_call;
default:
if (alpha_insn->code > 0x30) return br_jXX;
}
}
return br_nobranch;
case ALPHA_GROUP_JMP: {
switch (alpha_insn->code) {
case 0:
case 3:
case 1:
return br_call;
case 2:
return br_return;
}
}
}
}
return br_nobranch;
}
/*
*
*/
void AnalyAlphaDisassembler::store(ObjectStream &f) const
{
AnalyDisassembler::store(f);
}
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