diff options
Diffstat (limited to 'src/ARMJIT_x64/ARMJIT_ALU.cpp')
| -rw-r--r-- | src/ARMJIT_x64/ARMJIT_ALU.cpp | 322 |
1 files changed, 181 insertions, 141 deletions
diff --git a/src/ARMJIT_x64/ARMJIT_ALU.cpp b/src/ARMJIT_x64/ARMJIT_ALU.cpp index 6294e1d..c22751e 100644 --- a/src/ARMJIT_x64/ARMJIT_ALU.cpp +++ b/src/ARMJIT_x64/ARMJIT_ALU.cpp @@ -71,30 +71,30 @@ void Compiler::Comp_CmpOp(int op, Gen::OpArg rn, Gen::OpArg op2, bool carryUsed) { switch (op) { - case 0: // TST - if (rn.IsImm()) - { - MOV(32, R(RSCRATCH3), rn); - rn = R(RSCRATCH3); - } - TEST(32, rn, op2); - break; - case 1: // TEQ + case 0: // TST + if (rn.IsImm()) + { MOV(32, R(RSCRATCH3), rn); - XOR(32, R(RSCRATCH3), op2); - break; - case 2: // CMP - if (rn.IsImm()) - { - MOV(32, R(RSCRATCH3), rn); - rn = R(RSCRATCH3); - } - CMP(32, rn, op2); - break; - case 3: // CMN + rn = R(RSCRATCH3); + } + TEST(32, rn, op2); + break; + case 1: // TEQ + MOV(32, R(RSCRATCH3), rn); + XOR(32, R(RSCRATCH3), op2); + break; + case 2: // CMP + if (rn.IsImm()) + { MOV(32, R(RSCRATCH3), rn); - ADD(32, R(RSCRATCH3), op2); - break; + rn = R(RSCRATCH3); + } + CMP(32, rn, op2); + break; + case 3: // CMN + MOV(32, R(RSCRATCH3), rn); + ADD(32, R(RSCRATCH3), op2); + break; } Comp_RetriveFlags(op == 2, op >= 2, carryUsed); @@ -103,38 +103,38 @@ void Compiler::Comp_CmpOp(int op, Gen::OpArg rn, Gen::OpArg op2, bool carryUsed) // also calculates cycles OpArg Compiler::A_Comp_GetALUOp2(bool S, bool& carryUsed) { - if (CurrentInstr.Instr & (1 << 25)) + if (CurInstr.Instr & (1 << 25)) { Comp_AddCycles_C(); carryUsed = false; - return Imm32(ROR(CurrentInstr.Instr & 0xFF, (CurrentInstr.Instr >> 7) & 0x1E)); + return Imm32(ROR(CurInstr.Instr & 0xFF, (CurInstr.Instr >> 7) & 0x1E)); } else { - int op = (CurrentInstr.Instr >> 5) & 0x3; - if (CurrentInstr.Instr & (1 << 4)) + int op = (CurInstr.Instr >> 5) & 0x3; + if (CurInstr.Instr & (1 << 4)) { Comp_AddCycles_CI(1); - OpArg rm = MapReg(CurrentInstr.A_Reg(0)); - if (rm.IsImm() && CurrentInstr.A_Reg(0) == 15) + OpArg rm = MapReg(CurInstr.A_Reg(0)); + if (rm.IsImm() && CurInstr.A_Reg(0) == 15) rm = Imm32(rm.Imm32() + 4); - return Comp_RegShiftReg(op, MapReg(CurrentInstr.A_Reg(8)), rm, S, carryUsed); + return Comp_RegShiftReg(op, MapReg(CurInstr.A_Reg(8)), rm, S, carryUsed); } else { Comp_AddCycles_C(); - return Comp_RegShiftImm(op, (CurrentInstr.Instr >> 7) & 0x1F, - MapReg(CurrentInstr.A_Reg(0)), S, carryUsed); + return Comp_RegShiftImm(op, (CurInstr.Instr >> 7) & 0x1F, + MapReg(CurInstr.A_Reg(0)), S, carryUsed); } } } void Compiler::A_Comp_CmpOp() { - u32 op = (CurrentInstr.Instr >> 21) & 0xF; + u32 op = (CurInstr.Instr >> 21) & 0xF; bool carryUsed; - OpArg rn = MapReg(CurrentInstr.A_Reg(16)); + OpArg rn = MapReg(CurInstr.A_Reg(16)); OpArg op2 = A_Comp_GetALUOp2((1 << op) & 0xF303, carryUsed); Comp_CmpOp(op - 0x8, rn, op2, carryUsed); @@ -142,12 +142,12 @@ void Compiler::A_Comp_CmpOp() void Compiler::A_Comp_Arith() { - bool S = CurrentInstr.Instr & (1 << 20); - u32 op = (CurrentInstr.Instr >> 21) & 0xF; + bool S = CurInstr.Instr & (1 << 20); + u32 op = (CurInstr.Instr >> 21) & 0xF; bool carryUsed; - OpArg rn = MapReg(CurrentInstr.A_Reg(16)); - OpArg rd = MapReg(CurrentInstr.A_Reg(12)); + OpArg rn = MapReg(CurInstr.A_Reg(16)); + OpArg rd = MapReg(CurInstr.A_Reg(12)); OpArg op2 = A_Comp_GetALUOp2(S && (1 << op) & 0xF303, carryUsed); u32 sFlag = S ? opSetsFlags : 0; @@ -155,13 +155,13 @@ void Compiler::A_Comp_Arith() { case 0x0: // AND Comp_ArithTriOp(AND, rd, rn, op2, carryUsed, opSymmetric|sFlag); - return; + break; case 0x1: // EOR Comp_ArithTriOp(XOR, rd, rn, op2, carryUsed, opSymmetric|sFlag); - return; + break; case 0x2: // SUB Comp_ArithTriOp(SUB, rd, rn, op2, carryUsed, sFlag|opRetriveCV|opInvertCarry); - return; + break; case 0x3: // RSB if (op2.IsZero()) { @@ -173,41 +173,44 @@ void Compiler::A_Comp_Arith() } else Comp_ArithTriOpReverse(SUB, rd, rn, op2, carryUsed, sFlag|opRetriveCV|opInvertCarry); - return; + break; case 0x4: // ADD Comp_ArithTriOp(ADD, rd, rn, op2, carryUsed, opSymmetric|sFlag|opRetriveCV); - return; + break; case 0x5: // ADC Comp_ArithTriOp(ADC, rd, rn, op2, carryUsed, opSymmetric|sFlag|opRetriveCV|opSyncCarry); - return; + break; case 0x6: // SBC Comp_ArithTriOp(SBB, rd, rn, op2, carryUsed, opSymmetric|sFlag|opRetriveCV|opSyncCarry|opInvertCarry); - return; + break; case 0x7: // RSC Comp_ArithTriOpReverse(SBB, rd, rn, op2, carryUsed, sFlag|opRetriveCV|opInvertCarry|opSyncCarry); - return; + break; case 0xC: // ORR Comp_ArithTriOp(OR, rd, rn, op2, carryUsed, opSymmetric|sFlag); - return; + break; case 0xE: // BIC Comp_ArithTriOp(AND, rd, rn, op2, carryUsed, sFlag|opSymmetric|opInvertOp2); - return; + break; default: assert("unimplemented"); } + + if (CurInstr.A_Reg(12) == 15) + Comp_JumpTo(rd.GetSimpleReg(), S); } void Compiler::A_Comp_MovOp() { bool carryUsed; - bool S = CurrentInstr.Instr & (1 << 20); + bool S = CurInstr.Instr & (1 << 20); OpArg op2 = A_Comp_GetALUOp2(S, carryUsed); - OpArg rd = MapReg(CurrentInstr.A_Reg(12)); + OpArg rd = MapReg(CurInstr.A_Reg(12)); if (rd != op2) MOV(32, rd, op2); - if (((CurrentInstr.Instr >> 21) & 0xF) == 0xF) + if (((CurInstr.Instr >> 21) & 0xF) == 0xF) NOT(32, rd); if (S) @@ -215,6 +218,9 @@ void Compiler::A_Comp_MovOp() TEST(32, rd, rd); Comp_RetriveFlags(false, false, carryUsed); } + + if (CurInstr.A_Reg(12) == 15) + Comp_JumpTo(rd.GetSimpleReg(), S); } void Compiler::Comp_RetriveFlags(bool sign, bool retriveCV, bool carryUsed) @@ -230,7 +236,7 @@ void Compiler::Comp_RetriveFlags(bool sign, bool retriveCV, bool carryUsed) } if (carryUsed == 983298) - printf("etwas ist faul im lande daenemark %x\n", CurrentInstr.Instr); + printf("etwas ist faul im lande daenemark %x\n", CurInstr.Instr); SETcc(CC_S, R(RSCRATCH)); SETcc(CC_Z, R(RSCRATCH3)); @@ -324,61 +330,61 @@ OpArg Compiler::Comp_RegShiftImm(int op, int amount, OpArg rm, bool S, bool& car switch (op) { - case 0: // LSL - if (amount > 0) - { - MOV(32, R(RSCRATCH), rm); - SHL(32, R(RSCRATCH), Imm8(amount)); - if (S) - SETcc(CC_C, R(RSCRATCH2)); - - return R(RSCRATCH); - } - else - { - carryUsed = false; - return rm; - } - case 1: // LSR - if (amount > 0) - { - MOV(32, R(RSCRATCH), rm); - SHR(32, R(RSCRATCH), Imm8(amount)); - if (S) - SETcc(CC_C, R(RSCRATCH2)); - return R(RSCRATCH); - } - else - { - if (S) - { - MOV(32, R(RSCRATCH2), rm); - SHR(32, R(RSCRATCH2), Imm8(31)); - } - return Imm32(0); - } - case 2: // ASR + case 0: // LSL + if (amount > 0) + { MOV(32, R(RSCRATCH), rm); - SAR(32, R(RSCRATCH), Imm8(amount ? amount : 31)); + SHL(32, R(RSCRATCH), Imm8(amount)); if (S) - { - if (amount == 0) - BT(32, rm, Imm8(31)); SETcc(CC_C, R(RSCRATCH2)); - } + return R(RSCRATCH); - case 3: // ROR + } + else + { + carryUsed = false; + return rm; + } + case 1: // LSR + if (amount > 0) + { MOV(32, R(RSCRATCH), rm); - if (amount > 0) - ROR_(32, R(RSCRATCH), Imm8(amount)); - else - { - BT(32, R(RCPSR), Imm8(29)); - RCR(32, R(RSCRATCH), Imm8(1)); - } + SHR(32, R(RSCRATCH), Imm8(amount)); if (S) SETcc(CC_C, R(RSCRATCH2)); return R(RSCRATCH); + } + else + { + if (S) + { + MOV(32, R(RSCRATCH2), rm); + SHR(32, R(RSCRATCH2), Imm8(31)); + } + return Imm32(0); + } + case 2: // ASR + MOV(32, R(RSCRATCH), rm); + SAR(32, R(RSCRATCH), Imm8(amount ? amount : 31)); + if (S) + { + if (amount == 0) + BT(32, rm, Imm8(31)); + SETcc(CC_C, R(RSCRATCH2)); + } + return R(RSCRATCH); + case 3: // ROR + MOV(32, R(RSCRATCH), rm); + if (amount > 0) + ROR_(32, R(RSCRATCH), Imm8(amount)); + else + { + BT(32, R(RCPSR), Imm8(29)); + RCR(32, R(RSCRATCH), Imm8(1)); + } + if (S) + SETcc(CC_C, R(RSCRATCH2)); + return R(RSCRATCH); } assert(false); @@ -386,11 +392,11 @@ OpArg Compiler::Comp_RegShiftImm(int op, int amount, OpArg rm, bool S, bool& car void Compiler::T_Comp_ShiftImm() { - OpArg rd = MapReg(CurrentInstr.T_Reg(0)); - OpArg rs = MapReg(CurrentInstr.T_Reg(3)); + OpArg rd = MapReg(CurInstr.T_Reg(0)); + OpArg rs = MapReg(CurInstr.T_Reg(3)); - int op = (CurrentInstr.Instr >> 11) & 0x3; - int amount = (CurrentInstr.Instr >> 6) & 0x1F; + int op = (CurInstr.Instr >> 11) & 0x3; + int amount = (CurInstr.Instr >> 6) & 0x1F; Comp_AddCycles_C(); @@ -406,12 +412,12 @@ void Compiler::T_Comp_ShiftImm() void Compiler::T_Comp_AddSub_() { - OpArg rd = MapReg(CurrentInstr.T_Reg(0)); - OpArg rs = MapReg(CurrentInstr.T_Reg(3)); + OpArg rd = MapReg(CurInstr.T_Reg(0)); + OpArg rs = MapReg(CurInstr.T_Reg(3)); - int op = (CurrentInstr.Instr >> 9) & 0x3; + int op = (CurInstr.Instr >> 9) & 0x3; - OpArg rn = op >= 2 ? Imm32((CurrentInstr.Instr >> 6) & 0x7) : MapReg(CurrentInstr.T_Reg(6)); + OpArg rn = op >= 2 ? Imm32((CurInstr.Instr >> 6) & 0x7) : MapReg(CurInstr.T_Reg(6)); Comp_AddCycles_C(); @@ -423,38 +429,38 @@ void Compiler::T_Comp_AddSub_() void Compiler::T_Comp_ALU_Imm8() { - OpArg rd = MapReg(CurrentInstr.T_Reg(8)); + OpArg rd = MapReg(CurInstr.T_Reg(8)); - u32 op = (CurrentInstr.Instr >> 11) & 0x3; - OpArg imm = Imm32(CurrentInstr.Instr & 0xFF); + u32 op = (CurInstr.Instr >> 11) & 0x3; + OpArg imm = Imm32(CurInstr.Instr & 0xFF); Comp_AddCycles_C(); switch (op) { - case 0x0: - MOV(32, rd, imm); - TEST(32, rd, rd); - Comp_RetriveFlags(false, false, false); - return; - case 0x1: - Comp_CmpOp(2, rd, imm, false); - return; - case 0x2: - Comp_ArithTriOp(ADD, rd, rd, imm, false, opSetsFlags|opSymmetric|opRetriveCV); - return; - case 0x3: - Comp_ArithTriOp(SUB, rd, rd, imm, false, opSetsFlags|opInvertCarry|opRetriveCV); - return; + case 0x0: + MOV(32, rd, imm); + TEST(32, rd, rd); + Comp_RetriveFlags(false, false, false); + return; + case 0x1: + Comp_CmpOp(2, rd, imm, false); + return; + case 0x2: + Comp_ArithTriOp(ADD, rd, rd, imm, false, opSetsFlags|opSymmetric|opRetriveCV); + return; + case 0x3: + Comp_ArithTriOp(SUB, rd, rd, imm, false, opSetsFlags|opInvertCarry|opRetriveCV); + return; } } void Compiler::T_Comp_ALU() { - OpArg rd = MapReg(CurrentInstr.T_Reg(0)); - OpArg rs = MapReg(CurrentInstr.T_Reg(3)); + OpArg rd = MapReg(CurInstr.T_Reg(0)); + OpArg rs = MapReg(CurInstr.T_Reg(3)); - u32 op = (CurrentInstr.Instr >> 6) & 0xF; + u32 op = (CurInstr.Instr >> 6) & 0xF; if ((op >= 0x2 && op < 0x4) || op == 0x7) Comp_AddCycles_CI(1); @@ -522,28 +528,62 @@ void Compiler::T_Comp_ALU() void Compiler::T_Comp_ALU_HiReg() { - OpArg rd = MapReg(((CurrentInstr.Instr & 0x7) | ((CurrentInstr.Instr >> 4) & 0x8))); - OpArg rs = MapReg((CurrentInstr.Instr >> 3) & 0xF); + u32 rd = ((CurInstr.Instr & 0x7) | ((CurInstr.Instr >> 4) & 0x8)); + OpArg rdMapped = MapReg(rd); + OpArg rs = MapReg((CurInstr.Instr >> 3) & 0xF); - u32 op = (CurrentInstr.Instr >> 8) & 0x3; + u32 op = (CurInstr.Instr >> 8) & 0x3; Comp_AddCycles_C(); switch (op) { - case 0x0: // ADD - Comp_ArithTriOp(ADD, rd, rd, rs, false, opSymmetric|opRetriveCV); - return; - case 0x1: // CMP - Comp_CmpOp(2, rd, rs, false); - return; - case 0x2: // MOV - if (rd != rs) - MOV(32, rd, rs); - TEST(32, rd, rd); - Comp_RetriveFlags(false, false, false); - return; + case 0x0: // ADD + Comp_ArithTriOp(ADD, rdMapped, rdMapped, rs, false, opSymmetric|opRetriveCV); + break; + case 0x1: // CMP + Comp_CmpOp(2, rdMapped, rs, false); + return; // this is on purpose + case 0x2: // MOV + if (rdMapped != rs) + MOV(32, rdMapped, rs); + TEST(32, rdMapped, rdMapped); + Comp_RetriveFlags(false, false, false); + break; + } + + if (rd == 15) + { + OR(32, rdMapped, Imm8(1)); + Comp_JumpTo(rdMapped.GetSimpleReg()); } } +void Compiler::T_Comp_AddSP() +{ + Comp_AddCycles_C(); + + OpArg sp = MapReg(13); + OpArg offset = Imm32((CurInstr.Instr & 0x7F) << 2); + if (CurInstr.Instr & (1 << 7)) + SUB(32, sp, offset); + else + ADD(32, sp, offset); +} + +void Compiler::T_Comp_RelAddr() +{ + Comp_AddCycles_C(); + + OpArg rd = MapReg(CurInstr.T_Reg(8)); + u32 offset = (CurInstr.Instr & 0xFF) << 2; + if (CurInstr.Instr & (1 << 11)) + { + OpArg sp = MapReg(13); + LEA(32, rd.GetSimpleReg(), MDisp(sp.GetSimpleReg(), offset)); + } + else + MOV(32, rd, Imm32((R15 & ~2) + offset)); +} + }
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