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/*
* Copyright (c) 2010 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
*/
#include "arch/arm/insts/misc.hh"
std::string
MrsOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMnemonic(ss);
printReg(ss, dest);
ss << ", ";
bool foundPsr = false;
for (unsigned i = 0; i < numSrcRegs(); i++) {
int idx = srcRegIdx(i);
if (idx < Ctrl_Base_DepTag) {
continue;
}
idx -= Ctrl_Base_DepTag;
if (idx == MISCREG_CPSR) {
ss << "cpsr";
foundPsr = true;
break;
}
if (idx == MISCREG_SPSR) {
ss << "spsr";
foundPsr = true;
break;
}
}
if (!foundPsr) {
ss << "????";
}
return ss.str();
}
void
MsrBase::printMsrBase(std::ostream &os) const
{
printMnemonic(os);
bool apsr = false;
bool foundPsr = false;
for (unsigned i = 0; i < numDestRegs(); i++) {
int idx = destRegIdx(i);
if (idx < Ctrl_Base_DepTag) {
continue;
}
idx -= Ctrl_Base_DepTag;
if (idx == MISCREG_CPSR) {
os << "cpsr_";
foundPsr = true;
break;
}
if (idx == MISCREG_SPSR) {
if (bits(byteMask, 1, 0)) {
os << "spsr_";
} else {
os << "apsr_";
apsr = true;
}
foundPsr = true;
break;
}
}
if (!foundPsr) {
os << "????";
return;
}
if (bits(byteMask, 3)) {
if (apsr) {
os << "nzcvq";
} else {
os << "f";
}
}
if (bits(byteMask, 2)) {
if (apsr) {
os << "g";
} else {
os << "s";
}
}
if (bits(byteMask, 1)) {
os << "x";
}
if (bits(byteMask, 0)) {
os << "c";
}
}
std::string
MsrImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMsrBase(ss);
ccprintf(ss, ", #%#x", imm);
return ss.str();
}
std::string
MsrRegOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMsrBase(ss);
ss << ", ";
printReg(ss, op1);
return ss.str();
}
std::string
ImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMnemonic(ss);
ccprintf(ss, "#%d", imm);
return ss.str();
}
std::string
RegImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMnemonic(ss);
printReg(ss, dest);
ccprintf(ss, ", #%d", imm);
return ss.str();
}
std::string
RegRegOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMnemonic(ss);
printReg(ss, dest);
ss << ", ";
printReg(ss, op1);
return ss.str();
}
std::string
RegRegRegImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMnemonic(ss);
printReg(ss, dest);
ss << ", ";
printReg(ss, op1);
ss << ", ";
printReg(ss, op2);
ccprintf(ss, ", #%d", imm);
return ss.str();
}
std::string
RegRegRegRegOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMnemonic(ss);
printReg(ss, dest);
ss << ", ";
printReg(ss, op1);
ss << ", ";
printReg(ss, op2);
ss << ", ";
printReg(ss, op3);
return ss.str();
}
std::string
RegRegRegOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMnemonic(ss);
printReg(ss, dest);
ss << ", ";
printReg(ss, op1);
ss << ", ";
printReg(ss, op2);
return ss.str();
}
std::string
RegRegImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMnemonic(ss);
printReg(ss, dest);
ss << ", ";
printReg(ss, op1);
ccprintf(ss, ", #%d", imm);
return ss.str();
}
std::string
RegRegImmImmOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMnemonic(ss);
printReg(ss, dest);
ss << ", ";
printReg(ss, op1);
ccprintf(ss, ", #%d, #%d", imm1, imm2);
return ss.str();
}
std::string
RegImmRegOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMnemonic(ss);
printReg(ss, dest);
ccprintf(ss, ", #%d, ", imm);
printReg(ss, op1);
return ss.str();
}
std::string
RegImmRegShiftOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
{
std::stringstream ss;
printMnemonic(ss);
printReg(ss, dest);
ccprintf(ss, ", #%d, ", imm);
printShiftOperand(ss, op1, true, shiftAmt, INTREG_ZERO, shiftType);
printReg(ss, op1);
return ss.str();
}
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