91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
/* This file is part of the dynarmic project.
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* Copyright (c) 2016 MerryMage
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* This software may be used and distributed according to the terms of the GNU
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* General Public License version 2 or any later version.
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*/
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#pragma once
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#include <array>
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#include <xbyak.h>
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#include "common/common_types.h"
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namespace Dynarmic::BackendX64 {
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class BlockOfCode;
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#ifdef _MSC_VER
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#pragma warning(push)
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#pragma warning(disable:4324) // Structure was padded due to alignment specifier
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#endif
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struct A32JitState {
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using ProgramCounterType = u32;
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A32JitState() { ResetRSB(); }
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std::array<u32, 16> Reg{}; // Current register file.
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// TODO: Mode-specific register sets unimplemented.
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// Location Descriptor related (the order of fields is important)
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u8 cpsr_et = 0; ///< Format: 000E000T
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u8 cpsr_it = 0; ///< Format: ccccmmmm
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u16 fpcr_mode = 0; ///< Top 16 bits of FPCR
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u64 GetUniqueHash() const noexcept {
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const u64 upper_half = u64(cpsr_et) | (u64(cpsr_it) << 8) | (u64(fpcr_mode) << 16);
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return (upper_half << 32) | Reg[15];
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}
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// CPSR fields
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u32 cpsr_ge = 0;
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u32 cpsr_q = 0;
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u32 cpsr_nzcv = 0;
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u32 cpsr_jaifm = 0;
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u32 Cpsr() const;
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void SetCpsr(u32 cpsr);
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alignas(u64) std::array<u32, 64> ExtReg{}; // Extension registers.
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static constexpr size_t SpillCount = 64;
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std::array<u64, SpillCount> Spill{}; // Spill.
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static Xbyak::Address GetSpillLocationFromIndex(size_t i) {
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using namespace Xbyak::util;
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return qword[r15 + offsetof(A32JitState, Spill) + i * sizeof(u64)];
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}
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// For internal use (See: BlockOfCode::RunCode)
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u32 guest_MXCSR = 0x00001f80;
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u32 save_host_MXCSR = 0;
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s64 cycles_to_run = 0;
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s64 cycles_remaining = 0;
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bool halt_requested = false;
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bool check_bit = false;
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// Exclusive state
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static constexpr u32 RESERVATION_GRANULE_MASK = 0xFFFFFFF8;
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u32 exclusive_state = 0;
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u32 exclusive_address = 0;
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static constexpr size_t RSBSize = 8; // MUST be a power of 2.
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static constexpr size_t RSBPtrMask = RSBSize - 1;
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u32 rsb_ptr = 0;
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std::array<u64, RSBSize> rsb_location_descriptors;
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std::array<u64, RSBSize> rsb_codeptrs;
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void ResetRSB();
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u32 fpsr_exc = 0;
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u32 fpsr_qc = 0; // Dummy value
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u32 fpsr_nzcv = 0;
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u32 Fpscr() const;
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void SetFpscr(u32 FPSCR);
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};
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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using CodePtr = const void*;
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} // namespace Dynarmic::BackendX64
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