Add DSP emulation interface

Co-Authored-By: PSISP <12768103+psi-rockin@users.noreply.github.com>

src/core/audio/dsp_core.cpp

@@ -0,0 +1,21 @@
+#include "audio/dsp_core.hpp"
+
+#include "audio/null_core.hpp"
+#include "audio/teakra_core.hpp"
+
+std::unique_ptr<Audio::DSPCore> Audio::makeDSPCore(DSPCore::Type type, Memory& mem) {
+	std::unique_ptr<DSPCore> core;
+
+	switch (type) {
+		case DSPCore::Type::Null: core = std::make_unique<NullDSP>(mem); break;
+		case DSPCore::Type::Teakra: core = std::make_unique<TeakraDSP>(mem); break;
+
+		default:
+			Helpers::warn("Invalid DSP core selected!");
+			core = std::make_unique<NullDSP>(mem);
+			break;
+	}
+
+	mem.setDSPMem(core->getDspMemory());
+	return core;
+}