77 lines
2.4 KiB
C++
77 lines
2.4 KiB
C++
/* This file is part of the dynarmic project.
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* Copyright (c) 2018 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 icense version 2 or any later version.
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*/
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#include <array>
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#include <climits>
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#include "backend/x64/block_of_code.h"
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#include "backend/x64/emit_x64.h"
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#include "common/common_types.h"
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#include "common/crypto/crc32.h"
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#include "frontend/ir/microinstruction.h"
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#include "frontend/ir/opcodes.h"
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namespace Dynarmic::BackendX64 {
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using namespace Xbyak::util;
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namespace CRC32 = Common::Crypto::CRC32;
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static void EmitCRC32Castagnoli(BlockOfCode& code, EmitContext& ctx, IR::Inst* inst, const int data_size) {
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auto args = ctx.reg_alloc.GetArgumentInfo(inst);
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if (code.DoesCpuSupport(Xbyak::util::Cpu::tSSE42)) {
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const Xbyak::Reg32 crc = ctx.reg_alloc.UseScratchGpr(args[0]).cvt32();
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const Xbyak::Reg value = ctx.reg_alloc.UseGpr(args[1]).changeBit(data_size);
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code.crc32(crc, value);
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ctx.reg_alloc.DefineValue(inst, crc);
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} else {
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ctx.reg_alloc.HostCall(inst, args[0], args[1], {});
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code.mov(code.ABI_PARAM3, data_size / CHAR_BIT);
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code.CallFunction(&CRC32::ComputeCRC32Castagnoli);
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}
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}
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static void EmitCRC32ISO(BlockOfCode& code, EmitContext& ctx, IR::Inst* inst, const int data_size) {
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auto args = ctx.reg_alloc.GetArgumentInfo(inst);
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ctx.reg_alloc.HostCall(inst, args[0], args[1], {});
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code.mov(code.ABI_PARAM3, data_size / CHAR_BIT);
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code.CallFunction(&CRC32::ComputeCRC32ISO);
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}
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void EmitX64::EmitCRC32Castagnoli8(EmitContext& ctx, IR::Inst* inst) {
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EmitCRC32Castagnoli(code, ctx, inst, 8);
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}
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void EmitX64::EmitCRC32Castagnoli16(EmitContext& ctx, IR::Inst* inst) {
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EmitCRC32Castagnoli(code, ctx, inst, 16);
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}
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void EmitX64::EmitCRC32Castagnoli32(EmitContext& ctx, IR::Inst* inst) {
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EmitCRC32Castagnoli(code, ctx, inst, 32);
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}
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void EmitX64::EmitCRC32Castagnoli64(EmitContext& ctx, IR::Inst* inst) {
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EmitCRC32Castagnoli(code, ctx, inst, 64);
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}
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void EmitX64::EmitCRC32ISO8(EmitContext& ctx, IR::Inst* inst) {
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EmitCRC32ISO(code, ctx, inst, 8);
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}
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void EmitX64::EmitCRC32ISO16(EmitContext& ctx, IR::Inst* inst) {
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EmitCRC32ISO(code, ctx, inst, 16);
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}
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void EmitX64::EmitCRC32ISO32(EmitContext& ctx, IR::Inst* inst) {
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EmitCRC32ISO(code, ctx, inst, 32);
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}
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void EmitX64::EmitCRC32ISO64(EmitContext& ctx, IR::Inst* inst) {
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EmitCRC32ISO(code, ctx, inst, 64);
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}
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} // namespace Dynarmic::BackendX64
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