diff options
Diffstat (limited to 'ChocolArm64/Instruction/AInstEmitMemoryEx.cs')
| -rw-r--r-- | ChocolArm64/Instruction/AInstEmitMemoryEx.cs | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/ChocolArm64/Instruction/AInstEmitMemoryEx.cs b/ChocolArm64/Instruction/AInstEmitMemoryEx.cs deleted file mode 100644 index cf19b4a1..00000000 --- a/ChocolArm64/Instruction/AInstEmitMemoryEx.cs +++ /dev/null @@ -1,192 +0,0 @@ -using ChocolArm64.Decoder; -using ChocolArm64.Memory; -using ChocolArm64.State; -using ChocolArm64.Translation; -using System; -using System.Reflection.Emit; -using System.Threading; - -using static ChocolArm64.Instruction.AInstEmitMemoryHelper; - -namespace ChocolArm64.Instruction -{ - static partial class AInstEmit - { - [Flags] - private enum AccessType - { - None = 0, - Ordered = 1, - Exclusive = 2, - OrderedEx = Ordered | Exclusive - } - - public static void Clrex(AILEmitterCtx Context) - { - EmitMemoryCall(Context, nameof(AMemory.ClearExclusive)); - } - - public static void Dmb(AILEmitterCtx Context) => EmitBarrier(Context); - public static void Dsb(AILEmitterCtx Context) => EmitBarrier(Context); - - public static void Ldar(AILEmitterCtx Context) => EmitLdr(Context, AccessType.Ordered); - public static void Ldaxr(AILEmitterCtx Context) => EmitLdr(Context, AccessType.OrderedEx); - public static void Ldxr(AILEmitterCtx Context) => EmitLdr(Context, AccessType.Exclusive); - public static void Ldxp(AILEmitterCtx Context) => EmitLdp(Context, AccessType.Exclusive); - public static void Ldaxp(AILEmitterCtx Context) => EmitLdp(Context, AccessType.OrderedEx); - - private static void EmitLdr(AILEmitterCtx Context, AccessType AccType) - { - EmitLoad(Context, AccType, false); - } - - private static void EmitLdp(AILEmitterCtx Context, AccessType AccType) - { - EmitLoad(Context, AccType, true); - } - - private static void EmitLoad(AILEmitterCtx Context, AccessType AccType, bool Pair) - { - AOpCodeMemEx Op = (AOpCodeMemEx)Context.CurrOp; - - bool Ordered = (AccType & AccessType.Ordered) != 0; - bool Exclusive = (AccType & AccessType.Exclusive) != 0; - - if (Ordered) - { - EmitBarrier(Context); - } - - if (Exclusive) - { - EmitMemoryCall(Context, nameof(AMemory.SetExclusive), Op.Rn); - } - - Context.EmitLdint(Op.Rn); - Context.EmitSttmp(); - - Context.EmitLdarg(ATranslatedSub.MemoryArgIdx); - Context.EmitLdtmp(); - - EmitReadZxCall(Context, Op.Size); - - Context.EmitStintzr(Op.Rt); - - if (Pair) - { - Context.EmitLdarg(ATranslatedSub.MemoryArgIdx); - Context.EmitLdtmp(); - Context.EmitLdc_I8(1 << Op.Size); - - Context.Emit(OpCodes.Add); - - EmitReadZxCall(Context, Op.Size); - - Context.EmitStintzr(Op.Rt2); - } - } - - public static void Pfrm(AILEmitterCtx Context) - { - //Memory Prefetch, execute as no-op. - } - - public static void Stlr(AILEmitterCtx Context) => EmitStr(Context, AccessType.Ordered); - public static void Stlxr(AILEmitterCtx Context) => EmitStr(Context, AccessType.OrderedEx); - public static void Stxr(AILEmitterCtx Context) => EmitStr(Context, AccessType.Exclusive); - public static void Stxp(AILEmitterCtx Context) => EmitStp(Context, AccessType.Exclusive); - public static void Stlxp(AILEmitterCtx Context) => EmitStp(Context, AccessType.OrderedEx); - - private static void EmitStr(AILEmitterCtx Context, AccessType AccType) - { - EmitStore(Context, AccType, false); - } - - private static void EmitStp(AILEmitterCtx Context, AccessType AccType) - { - EmitStore(Context, AccType, true); - } - - private static void EmitStore(AILEmitterCtx Context, AccessType AccType, bool Pair) - { - AOpCodeMemEx Op = (AOpCodeMemEx)Context.CurrOp; - - bool Ordered = (AccType & AccessType.Ordered) != 0; - bool Exclusive = (AccType & AccessType.Exclusive) != 0; - - if (Ordered) - { - EmitBarrier(Context); - } - - AILLabel LblEx = new AILLabel(); - AILLabel LblEnd = new AILLabel(); - - if (Exclusive) - { - EmitMemoryCall(Context, nameof(AMemory.TestExclusive), Op.Rn); - - Context.Emit(OpCodes.Brtrue_S, LblEx); - - Context.EmitLdc_I8(1); - Context.EmitStintzr(Op.Rs); - - Context.Emit(OpCodes.Br_S, LblEnd); - } - - Context.MarkLabel(LblEx); - - Context.EmitLdarg(ATranslatedSub.MemoryArgIdx); - Context.EmitLdint(Op.Rn); - Context.EmitLdintzr(Op.Rt); - - EmitWriteCall(Context, Op.Size); - - if (Pair) - { - Context.EmitLdarg(ATranslatedSub.MemoryArgIdx); - Context.EmitLdint(Op.Rn); - Context.EmitLdc_I8(1 << Op.Size); - - Context.Emit(OpCodes.Add); - - Context.EmitLdintzr(Op.Rt2); - - EmitWriteCall(Context, Op.Size); - } - - if (Exclusive) - { - Context.EmitLdc_I8(0); - Context.EmitStintzr(Op.Rs); - - EmitMemoryCall(Context, nameof(AMemory.ClearExclusiveForStore)); - } - - Context.MarkLabel(LblEnd); - } - - private static void EmitMemoryCall(AILEmitterCtx Context, string Name, int Rn = -1) - { - Context.EmitLdarg(ATranslatedSub.MemoryArgIdx); - Context.EmitLdarg(ATranslatedSub.StateArgIdx); - - Context.EmitCallPropGet(typeof(AThreadState), nameof(AThreadState.Core)); - - if (Rn != -1) - { - Context.EmitLdint(Rn); - } - - Context.EmitCall(typeof(AMemory), Name); - } - - private static void EmitBarrier(AILEmitterCtx Context) - { - //Note: This barrier is most likely not necessary, and probably - //doesn't make any difference since we need to do a ton of stuff - //(software MMU emulation) to read or write anything anyway. - Context.EmitCall(typeof(Thread), nameof(Thread.MemoryBarrier)); - } - } -}
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