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ryujinx-fork/ChocolArm64/Instructions/InstEmitFlowHelper.cs

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using ChocolArm64.Translation;
using System.Reflection.Emit;
namespace ChocolArm64.Instructions
{
static class InstEmitFlowHelper
{
public static void EmitCall(ILEmitterCtx context, long imm)
{
if (context.TryOptEmitSubroutineCall())
{
//Note: the return value of the called method will be placed
//at the Stack, the return value is always a Int64 with the
//return address of the function. We check if the address is
//correct, if it isn't we keep returning until we reach the dispatcher.
context.Emit(OpCodes.Dup);
context.EmitLdc_I8(context.CurrOp.Position + 4);
ILLabel lblContinue = new ILLabel();
context.Emit(OpCodes.Beq_S, lblContinue);
context.Emit(OpCodes.Ret);
context.MarkLabel(lblContinue);
context.Emit(OpCodes.Pop);
context.EmitLoadState();
}
else
{
context.EmitLdc_I8(imm);
context.Emit(OpCodes.Ret);
}
}
}
}