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/*
* Copyright 2021 Google Inc.
*
* 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __ARCH_SPARC_PSEUDO_INST_ABI_HH__
#define __ARCH_SPARC_PSEUDO_INST_ABI_HH__
#include "arch/sparc/regs/int.hh"
#include "cpu/thread_context.hh"
#include "sim/guest_abi.hh"
namespace gem5
{
struct SparcPseudoInstABI
{
using State = int;
};
namespace guest_abi
{
template <typename T>
struct Result<SparcPseudoInstABI, T>
{
static void
store(ThreadContext *tc, const T &ret)
{
// This assumes that all pseudo ops have their return value set
// by the pseudo op instruction. This may need to be revisited if we
// modify the pseudo op ABI in util/m5/m5op_x86.S
tc->setReg(SparcISA::int_reg::O0, ret);
}
};
template <>
struct Argument<SparcPseudoInstABI, uint64_t>
{
static uint64_t
get(ThreadContext *tc, SparcPseudoInstABI::State &state)
{
panic_if(state >= 6, "Too many psuedo inst arguments.");
return tc->getReg(SparcISA::int_reg::o(state++));
}
};
} // namespace guest_abi
} // namespace gem5
#endif // __ARCH_SPARC_PSEUDO_INST_ABI_HH__