Suyu/dynarmic
1
0
Fork 0
mirror of https://git.suyu.dev/suyu/dynarmic.git synced 2026-01-06 22:48:25 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

Backend: Create "backend" folder

Browse source 
similar to the "frontend" folder
This commit is contained in:
BreadFish64 2018-08-14 13:13:47 -05:00 • committed by MerryMage
parent 3b13f1eb12
commit 2a65442933
42 changed files with 122 additions and 121 deletions
Download patch file Download diff file Expand all files Collapse all files

77
src/backend/x64/emit_x64_aes.cpp Normal file
View file

@ -0,0 +1,77 @@
/* This file is part of the dynarmic project.
* Copyright (c) 2018 MerryMage
* This software may be used and distributed according to the terms of the GNU
* General Public License version 2 or any later version.
*/
#include "backend/x64/abi.h"
#include "backend/x64/block_of_code.h"
#include "backend/x64/emit_x64.h"
#include "common/common_types.h"
#include "common/crypto/aes.h"
#include "frontend/ir/microinstruction.h"
#include "frontend/ir/opcodes.h"
namespace Dynarmic::BackendX64 {
using namespace Xbyak::util;
namespace AES = Common::Crypto::AES;
using AESFn = void(AES::State&, const AES::State&);
static void EmitAESFunction(RegAlloc::ArgumentInfo args, EmitContext& ctx, BlockOfCode& code,
IR::Inst* inst, AESFn fn) {
constexpr u32 stack_space = static_cast<u32>(sizeof(AES::State)) * 2;
const Xbyak::Xmm input = ctx.reg_alloc.UseXmm(args[0]);
const Xbyak::Xmm result = ctx.reg_alloc.ScratchXmm();
ctx.reg_alloc.EndOfAllocScope();
ctx.reg_alloc.HostCall(nullptr);
code.sub(rsp, stack_space + ABI_SHADOW_SPACE);
code.lea(code.ABI_PARAM1, ptr[rsp + ABI_SHADOW_SPACE]);
code.lea(code.ABI_PARAM2, ptr[rsp + ABI_SHADOW_SPACE + sizeof(AES::State)]);
code.movaps(xword[code.ABI_PARAM2], input);
code.CallFunction(fn);
code.movaps(result, xword[rsp + ABI_SHADOW_SPACE]);
// Free memory
code.add(rsp, stack_space + ABI_SHADOW_SPACE);
ctx.reg_alloc.DefineValue(inst, result);
}
void EmitX64::EmitAESDecryptSingleRound(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
EmitAESFunction(args, ctx, code, inst, AES::DecryptSingleRound);
}
void EmitX64::EmitAESEncryptSingleRound(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
EmitAESFunction(args, ctx, code, inst, AES::EncryptSingleRound);
}
void EmitX64::EmitAESInverseMixColumns(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
if (code.DoesCpuSupport(Xbyak::util::Cpu::tAESNI)) {
const Xbyak::Xmm data = ctx.reg_alloc.UseScratchXmm(args[0]);
code.aesimc(data, data);
ctx.reg_alloc.DefineValue(inst, data);
} else {
EmitAESFunction(args, ctx, code, inst, AES::InverseMixColumns);
}
}
void EmitX64::EmitAESMixColumns(EmitContext& ctx, IR::Inst* inst) {
auto args = ctx.reg_alloc.GetArgumentInfo(inst);
EmitAESFunction(args, ctx, code, inst, AES::MixColumns);
}
} // namespace Dynarmic::BackendX64