mirror of
https://github.com/melonDS-emu/melonDS.git
synced 2025-07-25 07:10:00 -06:00
jit: thumb block transfer working
also pc and sp relative loads and some refactoring
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@ -9,20 +9,20 @@ using namespace Gen;
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namespace ARMJIT
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{
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template <>
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const X64Reg RegCache<Compiler, X64Reg>::NativeRegAllocOrder[] =
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const X64Reg RegisterCache<Compiler, X64Reg>::NativeRegAllocOrder[] =
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{
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#ifdef _WIN32
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RBX, RSI, RDI, R12, R13
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RBX, RSI, RDI, R12, R13, R14
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#else
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RBX, R12, R13
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RBX, R12, R13, R14 // this is sad
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#endif
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};
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template <>
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const int RegCache<Compiler, X64Reg>::NativeRegsAvailable =
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const int RegisterCache<Compiler, X64Reg>::NativeRegsAvailable =
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#ifdef _WIN32
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5
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6
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#else
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3
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4
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#endif
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;
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@ -39,10 +39,47 @@ Compiler::Compiler()
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MemoryFuncs7[i][j][1] = Gen_MemoryRoutine7(j, true, 8 << i);
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}
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}
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for (int i = 0; i < 2; i++)
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for (int j = 0; j < 2; j++)
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{
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MemoryFuncsSeq9[i][j] = Gen_MemoryRoutineSeq9(i, j);
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MemoryFuncsSeq7[i][j][0] = Gen_MemoryRoutineSeq7(i, j, false);
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MemoryFuncsSeq7[i][j][1] = Gen_MemoryRoutineSeq7(i, j, true);
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}
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ResetStart = GetWritableCodePtr();
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}
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void* Compiler::Gen_ChangeCPSRRoutine()
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{
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void* res = (void*)GetWritableCodePtr();
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MOV(32, R(RSCRATCH), R(RCPSR));
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AND(32, R(RSCRATCH), Imm8(0x1F));
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CMP(32, R(RSCRATCH), Imm8(0x11));
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FixupBranch fiq = J_CC(CC_E);
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CMP(32, R(RSCRATCH), Imm8(0x12));
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FixupBranch irq = J_CC(CC_E);
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CMP(32, R(RSCRATCH), Imm8(0x13));
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FixupBranch svc = J_CC(CC_E);
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CMP(32, R(RSCRATCH), Imm8(0x17));
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FixupBranch abt = J_CC(CC_E);
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CMP(32, R(RSCRATCH), Imm8(0x1B));
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FixupBranch und = J_CC(CC_E);
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SetJumpTarget(fiq);
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SetJumpTarget(irq);
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SetJumpTarget(svc);
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SetJumpTarget(abt);
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SetJumpTarget(und);
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return res;
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}
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DataRegion Compiler::ClassifyAddress(u32 addr)
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{
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if (Num == 0 && addr >= ((ARMv5*)CurCPU)->DTCMBase && addr < ((ARMv5*)CurCPU)->DTCMBase)
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@ -106,12 +143,11 @@ CompiledBlock Compiler::CompileBlock(ARM* cpu, FetchedInstr instrs[], int instrs
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ABI_PushRegistersAndAdjustStack({ABI_ALL_CALLEE_SAVED & ABI_ALL_GPRS}, 8, 16);
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MOV(64, R(RCPU), ImmPtr(cpu));
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XOR(32, R(RCycles), R(RCycles));
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LoadCPSR();
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// TODO: this is ugly as a whole, do better
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RegCache = ARMJIT::RegCache<Compiler, X64Reg>(this, instrs, instrsCount);
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RegCache = RegisterCache<Compiler, X64Reg>(this, instrs, instrsCount);
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for (int i = 0; i < instrsCount; i++)
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{
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@ -242,7 +278,7 @@ CompiledBlock Compiler::CompileBlock(ARM* cpu, FetchedInstr instrs[], int instrs
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RegCache.Flush();
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SaveCPSR();
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LEA(32, RAX, MDisp(RCycles, ConstantCycles));
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MOV(32, R(RAX), Imm32(ConstantCycles));
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ABI_PopRegistersAndAdjustStack({ABI_ALL_CALLEE_SAVED & ABI_ALL_GPRS}, 8, 16);
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RET();
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@ -306,18 +342,20 @@ CompileFunc Compiler::GetCompFunc(int kind)
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NULL, NULL, NULL, NULL, NULL,
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// STR
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A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB,
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//NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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// STRB
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//NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB,
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// LDR
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//NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB,
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// LDRB
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//NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB, A_Comp_MemWB,
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// STRH
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A_Comp_MemHalf, A_Comp_MemHalf, A_Comp_MemHalf, A_Comp_MemHalf,
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// LDRD
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NULL, NULL, NULL, NULL,
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// STRD
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NULL, NULL, NULL, NULL,
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// LDRD, STRD never used by anything so they stay interpreted (by anything I mean the 5 games I checked)
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NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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// LDRH
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A_Comp_MemHalf, A_Comp_MemHalf, A_Comp_MemHalf, A_Comp_MemHalf,
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// LDRSB
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@ -360,10 +398,14 @@ CompileFunc Compiler::GetCompFunc(int kind)
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T_Comp_MemImm, T_Comp_MemImm, T_Comp_MemImm, T_Comp_MemImm,
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// LDR/STR half imm offset
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T_Comp_MemImmHalf, T_Comp_MemImmHalf,
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// branch, etc.
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NULL, NULL, NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL, NULL, NULL,
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NULL, NULL
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// LDR/STR sp rel
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NULL, NULL,
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// PUSH/POP
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NULL, NULL,
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// LDMIA, STMIA
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NULL, NULL,
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NULL, NULL,
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NULL, NULL, NULL, NULL, NULL, NULL
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};
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return Thumb ? T_Comp[kind] : A_Comp[kind];
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@ -376,7 +418,7 @@ void Compiler::Comp_AddCycles_C()
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: ((R15 & 0x2) ? 0 : CurInstr.CodeCycles);
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if (CurInstr.Cond() < 0xE)
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ADD(32, R(RCycles), Imm8(cycles));
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ADD(32, MDisp(RCPU, offsetof(ARM, Cycles)), Imm8(cycles));
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else
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ConstantCycles += cycles;
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}
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@ -388,13 +430,15 @@ void Compiler::Comp_AddCycles_CI(u32 i)
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: ((R15 & 0x2) ? 0 : CurInstr.CodeCycles)) + i;
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if (CurInstr.Cond() < 0xE)
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ADD(32, R(RCycles), Imm8(cycles));
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ADD(32, MDisp(RCPU, offsetof(ARM, Cycles)), Imm8(cycles));
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else
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ConstantCycles += cycles;
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}
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void Compiler::Comp_JumpTo(Gen::X64Reg addr, bool restoreCPSR)
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{
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// potentieller Bug: falls ein Register das noch gecacht ist, beim Modeswitch gespeichert
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// wird der alte Wert gespeichert
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SaveCPSR();
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MOV(64, R(ABI_PARAM1), R(RCPU));
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