diff options
Diffstat (limited to 'ChocolArm64/Instruction/AInstEmitAluHelper.cs')
| -rw-r--r-- | ChocolArm64/Instruction/AInstEmitAluHelper.cs | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/ChocolArm64/Instruction/AInstEmitAluHelper.cs b/ChocolArm64/Instruction/AInstEmitAluHelper.cs deleted file mode 100644 index ef9dd7a7..00000000 --- a/ChocolArm64/Instruction/AInstEmitAluHelper.cs +++ /dev/null @@ -1,212 +0,0 @@ -using ChocolArm64.Decoder; -using ChocolArm64.State; -using ChocolArm64.Translation; -using System.Reflection.Emit; - -namespace ChocolArm64.Instruction -{ - static class AInstEmitAluHelper - { - public static void EmitAdcsCCheck(AILEmitterCtx Context) - { - //C = (Rd == Rn && CIn) || Rd < Rn - Context.EmitSttmp(); - Context.EmitLdtmp(); - Context.EmitLdtmp(); - - EmitDataLoadRn(Context); - - Context.Emit(OpCodes.Ceq); - - Context.EmitLdflg((int)APState.CBit); - - Context.Emit(OpCodes.And); - - Context.EmitLdtmp(); - - EmitDataLoadRn(Context); - - Context.Emit(OpCodes.Clt_Un); - Context.Emit(OpCodes.Or); - - Context.EmitStflg((int)APState.CBit); - } - - public static void EmitAddsCCheck(AILEmitterCtx Context) - { - //C = Rd < Rn - Context.Emit(OpCodes.Dup); - - EmitDataLoadRn(Context); - - Context.Emit(OpCodes.Clt_Un); - - Context.EmitStflg((int)APState.CBit); - } - - public static void EmitAddsVCheck(AILEmitterCtx Context) - { - //V = (Rd ^ Rn) & ~(Rn ^ Rm) < 0 - Context.Emit(OpCodes.Dup); - - EmitDataLoadRn(Context); - - Context.Emit(OpCodes.Xor); - - EmitDataLoadOpers(Context); - - Context.Emit(OpCodes.Xor); - Context.Emit(OpCodes.Not); - Context.Emit(OpCodes.And); - - Context.EmitLdc_I(0); - - Context.Emit(OpCodes.Clt); - - Context.EmitStflg((int)APState.VBit); - } - - public static void EmitSbcsCCheck(AILEmitterCtx Context) - { - //C = (Rn == Rm && CIn) || Rn > Rm - EmitDataLoadOpers(Context); - - Context.Emit(OpCodes.Ceq); - - Context.EmitLdflg((int)APState.CBit); - - Context.Emit(OpCodes.And); - - EmitDataLoadOpers(Context); - - Context.Emit(OpCodes.Cgt_Un); - Context.Emit(OpCodes.Or); - - Context.EmitStflg((int)APState.CBit); - } - - public static void EmitSubsCCheck(AILEmitterCtx Context) - { - //C = Rn == Rm || Rn > Rm = !(Rn < Rm) - EmitDataLoadOpers(Context); - - Context.Emit(OpCodes.Clt_Un); - - Context.EmitLdc_I4(1); - - Context.Emit(OpCodes.Xor); - - Context.EmitStflg((int)APState.CBit); - } - - public static void EmitSubsVCheck(AILEmitterCtx Context) - { - //V = (Rd ^ Rn) & (Rn ^ Rm) < 0 - Context.Emit(OpCodes.Dup); - - EmitDataLoadRn(Context); - - Context.Emit(OpCodes.Xor); - - EmitDataLoadOpers(Context); - - Context.Emit(OpCodes.Xor); - Context.Emit(OpCodes.And); - - Context.EmitLdc_I(0); - - Context.Emit(OpCodes.Clt); - - Context.EmitStflg((int)APState.VBit); - } - - public static void EmitDataLoadRm(AILEmitterCtx Context) - { - Context.EmitLdintzr(((IAOpCodeAluRs)Context.CurrOp).Rm); - } - - public static void EmitDataLoadOpers(AILEmitterCtx Context) - { - EmitDataLoadRn(Context); - EmitDataLoadOper2(Context); - } - - public static void EmitDataLoadRn(AILEmitterCtx Context) - { - IAOpCodeAlu Op = (IAOpCodeAlu)Context.CurrOp; - - if (Op.DataOp == ADataOp.Logical || Op is IAOpCodeAluRs) - { - Context.EmitLdintzr(Op.Rn); - } - else - { - Context.EmitLdint(Op.Rn); - } - } - - public static void EmitDataLoadOper2(AILEmitterCtx Context) - { - switch (Context.CurrOp) - { - case IAOpCodeAluImm Op: - Context.EmitLdc_I(Op.Imm); - break; - - case IAOpCodeAluRs Op: - Context.EmitLdintzr(Op.Rm); - - switch (Op.ShiftType) - { - case AShiftType.Lsl: Context.EmitLsl(Op.Shift); break; - case AShiftType.Lsr: Context.EmitLsr(Op.Shift); break; - case AShiftType.Asr: Context.EmitAsr(Op.Shift); break; - case AShiftType.Ror: Context.EmitRor(Op.Shift); break; - } - break; - - case IAOpCodeAluRx Op: - Context.EmitLdintzr(Op.Rm); - Context.EmitCast(Op.IntType); - Context.EmitLsl(Op.Shift); - break; - } - } - - public static void EmitDataStore(AILEmitterCtx Context) => EmitDataStore(Context, false); - public static void EmitDataStoreS(AILEmitterCtx Context) => EmitDataStore(Context, true); - - public static void EmitDataStore(AILEmitterCtx Context, bool SetFlags) - { - IAOpCodeAlu Op = (IAOpCodeAlu)Context.CurrOp; - - if (SetFlags || Op is IAOpCodeAluRs) - { - Context.EmitStintzr(Op.Rd); - } - else - { - Context.EmitStint(Op.Rd); - } - } - - public static void EmitSetNZCV(AILEmitterCtx Context, int NZCV) - { - Context.EmitLdc_I4((NZCV >> 0) & 1); - - Context.EmitStflg((int)APState.VBit); - - Context.EmitLdc_I4((NZCV >> 1) & 1); - - Context.EmitStflg((int)APState.CBit); - - Context.EmitLdc_I4((NZCV >> 2) & 1); - - Context.EmitStflg((int)APState.ZBit); - - Context.EmitLdc_I4((NZCV >> 3) & 1); - - Context.EmitStflg((int)APState.NBit); - } - } -}
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