blob: 35bd3865effb06d1558853ffe979ea5b5a6d4f87 [file] [log] [blame]
// -*- mode:c++ -*-
// Copyright (c) 2010-2012, 2016 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
let {{
simdEnabledCheckCode = '''
{
Fault fault = checkAdvSIMDOrFPEnabled32(xc->tcBase(),
Cpsr, Cpacr, Nsacr, Fpexc,
true, true);
if (fault != NoFault)
return fault;
}
'''
}};
def template NeonRegRegRegOpDeclare {{
template <class _Element>
class %(class_name)s : public %(base_class)s
{
protected:
typedef _Element Element;
public:
// Constructor
%(class_name)s(ExtMachInst machInst,
IntRegIndex _dest, IntRegIndex _op1, IntRegIndex _op2)
: %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
_dest, _op1, _op2)
{
%(constructor)s;
if (!(condCode == COND_AL || condCode == COND_UC)) {
for (int x = 0; x < _numDestRegs; x++) {
_srcRegIdx[_numSrcRegs++] = _destRegIdx[x];
}
}
}
Fault execute(ExecContext *, Trace::InstRecord *) const override;
};
}};
def template NeonRegRegRegImmOpDeclare {{
template <class _Element>
class %(class_name)s : public %(base_class)s
{
protected:
typedef _Element Element;
public:
// Constructor
%(class_name)s(ExtMachInst machInst,
IntRegIndex _dest, IntRegIndex _op1, IntRegIndex _op2,
uint64_t _imm)
: %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
_dest, _op1, _op2, _imm)
{
%(constructor)s;
if (!(condCode == COND_AL || condCode == COND_UC)) {
for (int x = 0; x < _numDestRegs; x++) {
_srcRegIdx[_numSrcRegs++] = _destRegIdx[x];
}
}
}
Fault execute(ExecContext *, Trace::InstRecord *) const override;
};
}};
def template NeonRegRegImmOpDeclare {{
template <class _Element>
class %(class_name)s : public %(base_class)s
{
protected:
typedef _Element Element;
public:
// Constructor
%(class_name)s(ExtMachInst machInst,
IntRegIndex _dest, IntRegIndex _op1, uint64_t _imm)
: %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
_dest, _op1, _imm)
{
%(constructor)s;
if (!(condCode == COND_AL || condCode == COND_UC)) {
for (int x = 0; x < _numDestRegs; x++) {
_srcRegIdx[_numSrcRegs++] = _destRegIdx[x];
}
}
}
Fault execute(ExecContext *, Trace::InstRecord *) const override;
};
}};
def template NeonRegImmOpDeclare {{
template <class _Element>
class %(class_name)s : public %(base_class)s
{
protected:
typedef _Element Element;
public:
// Constructor
%(class_name)s(ExtMachInst machInst, IntRegIndex _dest, uint64_t _imm)
: %(base_class)s("%(mnemonic)s", machInst, %(op_class)s, _dest, _imm)
{
%(constructor)s;
if (!(condCode == COND_AL || condCode == COND_UC)) {
for (int x = 0; x < _numDestRegs; x++) {
_srcRegIdx[_numSrcRegs++] = _destRegIdx[x];
}
}
}
Fault execute(ExecContext *, Trace::InstRecord *) const override;
};
}};
def template NeonRegRegOpDeclare {{
template <class _Element>
class %(class_name)s : public %(base_class)s
{
protected:
typedef _Element Element;
public:
// Constructor
%(class_name)s(ExtMachInst machInst,
IntRegIndex _dest, IntRegIndex _op1)
: %(base_class)s("%(mnemonic)s", machInst, %(op_class)s,
_dest, _op1)
{
%(constructor)s;
if (!(condCode == COND_AL || condCode == COND_UC)) {
for (int x = 0; x < _numDestRegs; x++) {
_srcRegIdx[_numSrcRegs++] = _destRegIdx[x];
}
}
}
Fault execute(ExecContext *, Trace::InstRecord *) const override;
};
}};
def template NeonExecDeclare {{
template
Fault %(class_name)s<%(targs)s>::execute(
ExecContext *, Trace::InstRecord *) const;
}};
output header {{
template <class T>
// Implement a less-than-zero function: ltz()
// this function exists because some versions of GCC complain when a
// comparison is done between a unsigned variable and 0 and for GCC 4.2
// there is no way to disable this warning
inline bool ltz(T t);
template <>
inline bool ltz(uint8_t) { return false; }
template <>
inline bool ltz(uint16_t) { return false; }
template <>
inline bool ltz(uint32_t) { return false; }
template <>
inline bool ltz(uint64_t) { return false; }
template <>
inline bool ltz(int8_t v) { return v < 0; }
template <>
inline bool ltz(int16_t v) { return v < 0; }
template <>
inline bool ltz(int32_t v) { return v < 0; }
template <>
inline bool ltz(int64_t v) { return v < 0; }
}};
def template NeonEqualRegExecute {{
template <class Element>
Fault %(class_name)s<Element>::execute(ExecContext *xc,
Trace::InstRecord *traceData) const
{
Fault fault = NoFault;
%(op_decl)s;
%(op_rd)s;
const unsigned rCount = %(r_count)d;
const unsigned eCount = rCount * sizeof(FloatRegBits) / sizeof(Element);
union RegVect {
FloatRegBits regs[rCount];
Element elements[eCount];
};
if (%(predicate_test)s)
{
%(code)s;
if (fault == NoFault)
{
%(op_wb)s;
}
} else {
xc->setPredicate(false);
}
return fault;
}
}};
output header {{
template <typename T>
struct bigger_type_t;
template<> struct bigger_type_t<uint8_t> { typedef uint16_t type; };
template<> struct bigger_type_t<uint16_t> { typedef uint32_t type; };
template<> struct bigger_type_t<uint32_t> { typedef uint64_t type; };
template<> struct bigger_type_t<int8_t> { typedef int16_t type; };
template<> struct bigger_type_t<int16_t> { typedef int32_t type; };
template<> struct bigger_type_t<int32_t> { typedef int64_t type; };
}};
def template NeonUnequalRegExecute {{
template <class Element>
Fault %(class_name)s<Element>::execute(ExecContext *xc,
Trace::InstRecord *traceData) const
{
typedef typename bigger_type_t<Element>::type BigElement;
Fault fault = NoFault;
%(op_decl)s;
%(op_rd)s;
const unsigned rCount = %(r_count)d;
const unsigned eCount = rCount * sizeof(FloatRegBits) / sizeof(Element);
union RegVect {
FloatRegBits regs[rCount];
Element elements[eCount];
BigElement bigElements[eCount / 2];
};
union BigRegVect {
FloatRegBits regs[2 * rCount];
BigElement elements[eCount];
};
if (%(predicate_test)s)
{
%(code)s;
if (fault == NoFault)
{
%(op_wb)s;
}
} else {
xc->setPredicate(false);
}
return fault;
}
}};