diff options
Diffstat (limited to 'src/ARMJIT_x64/ARMJIT_Compiler.cpp')
| -rw-r--r-- | src/ARMJIT_x64/ARMJIT_Compiler.cpp | 184 |
1 files changed, 153 insertions, 31 deletions
diff --git a/src/ARMJIT_x64/ARMJIT_Compiler.cpp b/src/ARMJIT_x64/ARMJIT_Compiler.cpp index d8ce1aa..25c55a3 100644 --- a/src/ARMJIT_x64/ARMJIT_Compiler.cpp +++ b/src/ARMJIT_x64/ARMJIT_Compiler.cpp @@ -72,12 +72,15 @@ Compiler::Compiler() for (int i = 0; i < 3; i++) { for (int j = 0; j < 2; j++) - { MemoryFuncs9[i][j] = Gen_MemoryRoutine9(j, 8 << i); - MemoryFuncs7[i][j][0] = Gen_MemoryRoutine7(j, false, 8 << i); - MemoryFuncs7[i][j][1] = Gen_MemoryRoutine7(j, true, 8 << i); - } } + MemoryFuncs7[0][0] = (void*)NDS::ARM7Read8; + MemoryFuncs7[0][1] = (void*)NDS::ARM7Write8; + MemoryFuncs7[1][0] = (void*)NDS::ARM7Read16; + MemoryFuncs7[1][1] = (void*)NDS::ARM7Write16; + MemoryFuncs7[2][0] = (void*)NDS::ARM7Read32; + MemoryFuncs7[2][1] = (void*)NDS::ARM7Write32; + for (int i = 0; i < 2; i++) for (int j = 0; j < 2; j++) { @@ -179,12 +182,13 @@ void Compiler::LoadCPSR() MOV(32, R(RCPSR), MDisp(RCPU, offsetof(ARM, CPSR))); } -void Compiler::SaveCPSR() +void Compiler::SaveCPSR(bool flagClean) { if (CPSRDirty) { MOV(32, MDisp(RCPU, offsetof(ARM, CPSR)), R(RCPSR)); - CPSRDirty = false; + if (flagClean) + CPSRDirty = false; } } @@ -204,6 +208,9 @@ void Compiler::SaveReg(int reg, X64Reg nativeReg) // invalidates RSCRATCH and RSCRATCH3 Gen::FixupBranch Compiler::CheckCondition(u32 cond) { + // hack, ldm/stm can get really big TODO: make this better + bool ldmStm = !Thumb && + (CurInstr.Info.Kind == ARMInstrInfo::ak_LDM || CurInstr.Info.Kind == ARMInstrInfo::ak_STM); if (cond >= 0x8) { static_assert(RSCRATCH3 == ECX, "RSCRATCH has to be equal to ECX!"); @@ -213,14 +220,14 @@ Gen::FixupBranch Compiler::CheckCondition(u32 cond) SHL(32, R(RSCRATCH), R(RSCRATCH3)); TEST(32, R(RSCRATCH), Imm32(ARM::ConditionTable[cond])); - return J_CC(CC_Z); + return J_CC(CC_Z, ldmStm); } else { // could have used a LUT, but then where would be the fun? TEST(32, R(RCPSR), Imm32(1 << (28 + ((~(cond >> 1) & 1) << 1 | (cond >> 2 & 1) ^ (cond >> 1 & 1))))); - return J_CC(cond & 1 ? CC_NZ : CC_Z); + return J_CC(cond & 1 ? CC_NZ : CC_Z, ldmStm); } } @@ -354,25 +361,34 @@ void Compiler::Reset() SetCodePtr(ResetStart); } -CompiledBlock Compiler::CompileBlock(ARM* cpu, FetchedInstr instrs[], int instrsCount) +void Compiler::Comp_SpecialBranchBehaviour() +{ + if (CurInstr.BranchFlags & branch_IdleBranch) + OR(32, MDisp(RCPU, offsetof(ARM, Halted)), Imm8(0x20)); + + if (CurInstr.BranchFlags & branch_FollowCondNotTaken) + { + RegCache.PrepareExit(); + SaveCPSR(false); + + MOV(32, R(RAX), Imm32(ConstantCycles)); + ABI_PopRegistersAndAdjustStack(BitSet32(ABI_ALL_CALLEE_SAVED & ABI_ALL_GPRS & ~BitSet32({RSP})), 8); + RET(); + } +} + +JitBlockEntry Compiler::CompileBlock(ARM* cpu, bool thumb, FetchedInstr instrs[], int instrsCount) { if (CodeMemSize - (GetWritableCodePtr() - ResetStart) < 1024 * 32) // guess... - InvalidateBlockCache(); + ResetBlockCache(); ConstantCycles = 0; - Thumb = cpu->CPSR & 0x20; + Thumb = thumb; Num = cpu->Num; - CodeRegion = cpu->CodeRegion; + CodeRegion = instrs[0].Addr >> 24; CurCPU = cpu; - CompiledBlock res = (CompiledBlock)GetWritableCodePtr(); - - if (!(Num == 0 - ? IsMapped<0>(instrs[0].Addr - (Thumb ? 2 : 4)) - : IsMapped<1>(instrs[0].Addr - (Thumb ? 2 : 4)))) - { - printf("Trying to compile a block in unmapped memory\n"); - } + JitBlockEntry res = (JitBlockEntry)GetWritableCodePtr(); ABI_PushRegistersAndAdjustStack(BitSet32(ABI_ALL_CALLEE_SAVED & ABI_ALL_GPRS & ~BitSet32({RSP})), 8); @@ -380,7 +396,6 @@ CompiledBlock Compiler::CompileBlock(ARM* cpu, FetchedInstr instrs[], int instrs LoadCPSR(); - // TODO: this is ugly as a whole, do better RegCache = RegisterCache<Compiler, X64Reg>(this, instrs, instrsCount); for (int i = 0; i < instrsCount; i++) @@ -388,21 +403,25 @@ CompiledBlock Compiler::CompileBlock(ARM* cpu, FetchedInstr instrs[], int instrs CurInstr = instrs[i]; R15 = CurInstr.Addr + (Thumb ? 4 : 8); + Exit = i == instrsCount - 1 || (CurInstr.BranchFlags & branch_FollowCondNotTaken); + CompileFunc comp = Thumb ? T_Comp[CurInstr.Info.Kind] : A_Comp[CurInstr.Info.Kind]; bool isConditional = Thumb ? CurInstr.Info.Kind == ARMInstrInfo::tk_BCOND : CurInstr.Cond() < 0xE; - if (comp == NULL || (i == instrsCount - 1 && (!CurInstr.Info.Branches() || isConditional))) + if (comp == NULL || (CurInstr.BranchFlags & branch_FollowCondTaken) || (i == instrsCount - 1 && (!CurInstr.Info.Branches() || isConditional))) { MOV(32, MDisp(RCPU, offsetof(ARM, R[15])), Imm32(R15)); - MOV(32, MDisp(RCPU, offsetof(ARM, CodeCycles)), Imm32(CurInstr.CodeCycles)); - MOV(32, MDisp(RCPU, offsetof(ARM, CurInstr)), Imm32(CurInstr.Instr)); - if (comp == NULL) + { + MOV(32, MDisp(RCPU, offsetof(ARM, CodeCycles)), Imm32(CurInstr.CodeCycles)); + MOV(32, MDisp(RCPU, offsetof(ARM, CurInstr)), Imm32(CurInstr.Instr)); + SaveCPSR(); + } } - + if (comp != NULL) RegCache.Prepare(Thumb, i); else @@ -410,12 +429,11 @@ CompiledBlock Compiler::CompileBlock(ARM* cpu, FetchedInstr instrs[], int instrs if (Thumb) { - u32 icode = (CurInstr.Instr >> 6) & 0x3FF; if (comp == NULL) { MOV(64, R(ABI_PARAM1), R(RCPU)); - ABI_CallFunction(ARMInterpreter::THUMBInstrTable[icode]); + ABI_CallFunction(InterpretTHUMB[CurInstr.Info.Kind]); } else (this->*comp)(); @@ -434,7 +452,9 @@ CompiledBlock Compiler::CompileBlock(ARM* cpu, FetchedInstr instrs[], int instrs } } else if (cond == 0xF) + { Comp_AddCycles_C(); + } else { IrregularCycles = false; @@ -443,25 +463,36 @@ CompiledBlock Compiler::CompileBlock(ARM* cpu, FetchedInstr instrs[], int instrs if (cond < 0xE) skipExecute = CheckCondition(cond); - u32 icode = ((CurInstr.Instr >> 4) & 0xF) | ((CurInstr.Instr >> 16) & 0xFF0); if (comp == NULL) { MOV(64, R(ABI_PARAM1), R(RCPU)); - ABI_CallFunction(ARMInterpreter::ARMInstrTable[icode]); + ABI_CallFunction(InterpretARM[CurInstr.Info.Kind]); } else (this->*comp)(); + Comp_SpecialBranchBehaviour(); + if (CurInstr.Cond() < 0xE) { - if (IrregularCycles) + if (IrregularCycles || (CurInstr.BranchFlags & branch_FollowCondTaken)) { FixupBranch skipFailed = J(); SetJumpTarget(skipExecute); Comp_AddCycles_C(true); + if (CurInstr.BranchFlags & branch_FollowCondTaken) + { + RegCache.PrepareExit(); + SaveCPSR(false); + + MOV(32, R(RAX), Imm32(ConstantCycles)); + ABI_PopRegistersAndAdjustStack(BitSet32(ABI_ALL_CALLEE_SAVED & ABI_ALL_GPRS & ~BitSet32({RSP})), 8); + RET(); + } + SetJumpTarget(skipFailed); } else @@ -483,6 +514,12 @@ CompiledBlock Compiler::CompileBlock(ARM* cpu, FetchedInstr instrs[], int instrs ABI_PopRegistersAndAdjustStack(BitSet32(ABI_ALL_CALLEE_SAVED & ABI_ALL_GPRS & ~BitSet32({RSP})), 8); RET(); + /*FILE* codeout = fopen("codeout", "a"); + fprintf(codeout, "beginning block argargarg__ %x!!!", instrs[0].Addr); + fwrite((u8*)res, GetWritableCodePtr() - (u8*)res, 1, codeout); + + fclose(codeout);*/ + return res; } @@ -528,4 +565,89 @@ void Compiler::Comp_AddCycles_CI(Gen::X64Reg i, int add) } } +void Compiler::Comp_AddCycles_CDI() +{ + if (Num == 0) + Comp_AddCycles_CD(); + else + { + IrregularCycles = true; + + s32 cycles; + + s32 numC = NDS::ARM7MemTimings[CurInstr.CodeCycles][Thumb ? 0 : 2]; + s32 numD = CurInstr.DataCycles; + + if (CurInstr.DataRegion == 0x02) // mainRAM + { + if (CodeRegion == 0x02) + cycles = numC + numD; + else + { + numC++; + cycles = std::max(numC + numD - 3, std::max(numC, numD)); + } + } + else if (CodeRegion == 0x02) + { + numD++; + cycles = std::max(numC + numD - 3, std::max(numC, numD)); + } + else + { + cycles = numC + numD + 1; + } + + printf("%x: %d %d cycles cdi (%d)\n", CurInstr.Instr, Num, CurInstr.DataCycles, cycles); + + if (!Thumb && CurInstr.Cond() < 0xE) + ADD(32, MDisp(RCPU, offsetof(ARM, Cycles)), Imm8(cycles)); + else + ConstantCycles += cycles; + } +} + +void Compiler::Comp_AddCycles_CD() +{ + u32 cycles = 0; + if (Num == 0) + { + s32 numC = (R15 & 0x2) ? 0 : CurInstr.CodeCycles; + s32 numD = CurInstr.DataCycles; + + //if (DataRegion != CodeRegion) + cycles = std::max(numC + numD - 6, std::max(numC, numD)); + + IrregularCycles = cycles != numC; + } + else + { + s32 numC = NDS::ARM7MemTimings[CurInstr.CodeCycles][Thumb ? 0 : 2]; + s32 numD = CurInstr.DataCycles; + + if (CurInstr.DataRegion == 0x02) + { + if (CodeRegion == 0x02) + cycles += numC + numD; + else + cycles += std::max(numC + numD - 3, std::max(numC, numD)); + } + else if (CodeRegion == 0x02) + { + cycles += std::max(numC + numD - 3, std::max(numC, numD)); + } + else + { + cycles += numC + numD; + } + + IrregularCycles = true; + } + + if (!Thumb && CurInstr.Cond() < 0xE) + ADD(32, MDisp(RCPU, offsetof(ARM, Cycles)), Imm8(cycles)); + else + ConstantCycles += cycles; +} + }
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