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/*
* HT Editor
* analy_ppc.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_ppc.h"
#include "analy_register.h"
#include "ppcdis.h"
#include "htiobox.h"
#include "snprintf.h"
void AnalyPPCDisassembler::init(Analyser *A, int aMode)
{
mode = aMode;
disasm = new PPCDisassembler((aMode == ANALY_PPC_32) ? PPC_MODE_32 : PPC_MODE_64);
AnalyDisassembler::init(A);
}
void AnalyPPCDisassembler::load(ObjectStream &f)
{
GET_INT32X(f, mode);
AnalyDisassembler::load(f);
}
/*
*
*/
void AnalyPPCDisassembler::done()
{
AnalyDisassembler::done();
}
ObjectID AnalyPPCDisassembler::getObjectID() const
{
return ATOM_ANALY_PPC;
}
/*
*
*/
Address *AnalyPPCDisassembler::branchAddr(OPCODE *opcode, branch_enum_t branchtype, bool examine)
{
Address *a;
a = createAddress(((ppcdis_insn *)opcode)->op[((ppcdis_insn *)opcode)->ops-1].rel.mem);
if (/*examine &&*/ analy->validAddress(a, scvalid)) {
return a;
}
delete a;
return new InvalidAddress();
}
Address *AnalyPPCDisassembler::createAddress(uint64 offset)
{
if (mode == ANALY_PPC_32) {
return new AddressFlat32(offset);
} else {
return new AddressFlat64(offset);
}
}
/*
*
*/
void AnalyPPCDisassembler::examineOpcode(OPCODE *opcode)
{
}
/*
*
*/
branch_enum_t AnalyPPCDisassembler::isBranch(OPCODE *opcode)
{
// FIXME: needs work!!
ppcdis_insn *ppc_insn = (ppcdis_insn *) opcode;
if (ppc_insn->name[0]=='b') {
if (ppc_insn->name[1]=='l') {
if (ppc_insn->name[2]==0) {
return br_call;
}
if (ppc_insn->name[2]=='r') {
if (ppc_insn->name[3]=='l') {
return br_call;
} else {
return br_return;
}
}
return br_jXX;
}
if (ppc_insn->name[strlen(ppc_insn->name)] == 'l') {
return br_call;
}
if (ppc_insn->name[1] == 0 || strcmp(ppc_insn->name, "bctr") == 0) {
return br_jump;
}
return br_jXX;
}
return br_nobranch;
}
void AnalyPPCDisassembler::store(ObjectStream &f) const
{
PUT_INT32X(f, mode);
AnalyDisassembler::store(f);
}
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