76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
/*
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Copyright 2019 flyinghead
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This file is part of reicast.
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reicast is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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reicast is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with reicast. If not, see <https://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <xbyak/xbyak.h>
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#include "hw/sh4/dyna/ssa_regalloc.h"
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#ifdef _WIN32
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static Xbyak::Operand::Code alloc_regs[] = { Xbyak::Operand::RBX, Xbyak::Operand::RBP, Xbyak::Operand::RDI, Xbyak::Operand::RSI,
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Xbyak::Operand::R12, Xbyak::Operand::R13, Xbyak::Operand::R14, Xbyak::Operand::R15, (Xbyak::Operand::Code)-1 };
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static s8 alloc_fregs[] = { 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, -1 }; // XMM6 to XMM15 are callee-saved in Windows
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#define ALLOC_F64 true
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#else
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static Xbyak::Operand::Code alloc_regs[] = { Xbyak::Operand::RBX, Xbyak::Operand::RBP, Xbyak::Operand::R12, Xbyak::Operand::R13,
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Xbyak::Operand::R14, Xbyak::Operand::R15, (Xbyak::Operand::Code)-1 };
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static s8 alloc_fregs[] = { 8, 9, 10, 11, -1 }; // XMM8-11
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// all xmm registers are caller-saved on linux
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#define ALLOC_F64 false
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#endif
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class BlockCompiler;
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struct X64RegAlloc : RegAlloc<Xbyak::Operand::Code, s8, ALLOC_F64>
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{
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X64RegAlloc(BlockCompiler *compiler) : compiler(compiler) {}
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void DoAlloc(RuntimeBlockInfo* block)
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{
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RegAlloc::DoAlloc(block, alloc_regs, alloc_fregs);
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}
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void Preload(u32 reg, Xbyak::Operand::Code nreg) override;
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void Writeback(u32 reg, Xbyak::Operand::Code nreg) override;
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void Preload_FPU(u32 reg, s8 nreg) override;
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void Writeback_FPU(u32 reg, s8 nreg) override;
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Xbyak::Reg32 MapRegister(const shil_param& param)
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{
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Xbyak::Operand::Code ereg = mapg(param);
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if (ereg == (Xbyak::Operand::Code)-1)
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die("Register not allocated");
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return Xbyak::Reg32(ereg);
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}
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Xbyak::Xmm MapXRegister(const shil_param& param, int index = 0)
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{
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s8 ereg = mapf(param, index);
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if (ereg == -1)
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die("VRegister not allocated");
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return Xbyak::Xmm(ereg);
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}
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bool IsMapped(const Xbyak::Xmm &xmm, size_t opid)
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{
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return regf_used((s8)xmm.getIdx());
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}
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BlockCompiler *compiler;
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};
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