Ryujinx/ARMeilleure/Instructions/InstEmitException.cs
Ficture Seven 2421186d97
Generalize tail continues (#1298)
* Generalize tail continues

* Fix DecodeBasicBlock

`Next` and `Branch` would be null, which is not the state expected by
the branch instructions. They end up branching or falling into a block
which is never populated by the `Translator`. This causes an assert to
be fired when building the CFG.

* Clean up Decode overloads

* Do not synchronize when branching into exit block

If we're branching into an exit block, that exit block will tail
continue into another translation which already has a synchronization.

* Remove A32 predicate tail continue

If `block` is not an exit block then the `block.Next` must exist (as
per the last instruction of `block`).

* Throw if decoded 0 blocks

Address gdkchan's feedback

* Rebuild block list instead of setting to null

Address gdkchan's feedback
2020-06-18 13:37:21 +10:00

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1.3 KiB
C#

using ARMeilleure.Decoders;
using ARMeilleure.Translation;
using static ARMeilleure.Instructions.InstEmitFlowHelper;
using static ARMeilleure.IntermediateRepresentation.OperandHelper;
namespace ARMeilleure.Instructions
{
static partial class InstEmit
{
public static void Brk(ArmEmitterContext context)
{
EmitExceptionCall(context, nameof(NativeInterface.Break));
}
public static void Svc(ArmEmitterContext context)
{
EmitExceptionCall(context, nameof(NativeInterface.SupervisorCall));
}
private static void EmitExceptionCall(ArmEmitterContext context, string name)
{
OpCodeException op = (OpCodeException)context.CurrOp;
context.StoreToContext();
context.Call(typeof(NativeInterface).GetMethod(name), Const(op.Address), Const(op.Id));
context.LoadFromContext();
}
public static void Und(ArmEmitterContext context)
{
OpCode op = context.CurrOp;
string name = nameof(NativeInterface.Undefined);
context.StoreToContext();
context.Call(typeof(NativeInterface).GetMethod(name), Const(op.Address), Const(op.RawOpCode));
context.LoadFromContext();
}
}
}