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ARMeilleure: Add debuggable CPU loop

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# Conflicts:
#	src/ARMeilleure/Optimizations.cs
#	src/ARMeilleure/Translation/ArmEmitterContext.cs
This commit is contained in:
merry 2022-02-08 19:00:47 +00:00 committed by svc64
parent 39a3ba8329
commit 569d01823e
2 changed files with 31 additions and 5 deletions
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1
src/ARMeilleure/Optimizations.cs
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@ -9,6 +9,7 @@ namespace ARMeilleure
public static bool AllowLcqInFunctionTable { get; set; } = true;
public static bool UseUnmanagedDispatchLoop { get; set; } = true;
public static bool EnableDebugging { get; set; } = false;
public static bool UseAdvSimdIfAvailable { get; set; } = true;
public static bool UseArm64AesIfAvailable { get; set; } = true;

35
src/ARMeilleure/Translation/Translator.cs
View file

@ -140,7 +140,33 @@ namespace ARMeilleure.Translation
NativeInterface.RegisterThread(context, Memory, this);
if (Optimizations.UseUnmanagedDispatchLoop)
if (Optimizations.EnableDebugging)
{
context.DebugPc = address;
do
{
context.DebugPc = ExecuteSingle(context, context.DebugPc);
while (context._debugState != (int)DebugState.Running)
{
Interlocked.CompareExchange(ref context._debugState, (int)DebugState.Stopped, (int)DebugState.Stopping);
context._debugHalt.WaitOne();
if (Interlocked.CompareExchange(ref context._shouldStep, 0, 1) == 1)
{
context.DebugPc = Step(context, context.DebugPc);
context._stepBarrier.SignalAndWait();
context._stepBarrier.SignalAndWait();
}
else
{
Interlocked.CompareExchange(ref context._debugState, (int)DebugState.Running, (int)DebugState.Stopped);
}
}
}
while (context.Running && context.DebugPc != 0);
}
else if (Optimizations.UseUnmanagedDispatchLoop)
{
Stubs.DispatchLoop(context.NativeContextPtr, address);
}
@ -249,7 +275,7 @@ namespace ARMeilleure.Translation
Stubs,
address,
highCq,
_ptc.State != PtcState.Disabled,
_ptc.State != PtcState.Disabled && !Optimizations.EnableDebugging,
mode: Aarch32Mode.User);
Logger.StartPass(PassName.Decoding);
@ -382,9 +408,8 @@ namespace ARMeilleure.Translation
if (block.Exit)
{
// Left option here as it may be useful if we need to return to managed rather than tail call in
// future. (eg. for debug)
bool useReturns = false;
// Return to managed rather than tail call.
bool useReturns = Optimizations.EnableDebugging;
InstEmitFlowHelper.EmitVirtualJump(context, Const(block.Address), isReturn: useReturns);
}