Stop compiling some DSP-related files.

Replace it all with stubs.

CMakeLists.txt

@@ -89,7 +89,8 @@ add_library(game_debug STATIC ${JSYSTEM_DEBUG_FILES} ${SSYSTEM_FILES}
         src/dusk/audio/DuskDsp.hpp
         src/dusk/audio/DuskDsp.cpp
         src/dusk/audio/Adpcm.cpp
-        src/dusk/audio/Adpcm.hpp)
+        src/dusk/audio/Adpcm.hpp
+        src/dusk/audio/DspStub.cpp)
 target_compile_definitions(game_debug PRIVATE TARGET_PC AVOID_UB=1 VERSION=0 $<$<CONFIG:Debug>:DEBUG=1>)
 
 # Make these properties PUBLIC so that the regular game target also sees them.

files.cmake

@@ -507,10 +507,6 @@ set(JSYSTEM_DEBUG_FILES
         libs/JSystem/src/JAudio2/JASDSPInterface.cpp
         libs/JSystem/src/JAudio2/JASDriverIF.cpp
         libs/JSystem/src/JAudio2/JASSoundParams.cpp
-        libs/JSystem/src/JAudio2/dspproc.cpp
-        libs/JSystem/src/JAudio2/dsptask.cpp
-        libs/JSystem/src/JAudio2/osdsp.cpp
-        libs/JSystem/src/JAudio2/osdsp_task.cpp
         libs/JSystem/src/JAudio2/JAIAudible.cpp
         libs/JSystem/src/JAudio2/JAIAudience.cpp
         libs/JSystem/src/JAudio2/JAISe.cpp

src/dusk/audio/DspStub.cpp

@@ -0,0 +1,35 @@
+#include "JSystem/JAudio2/dspproc.h"
+#include "JSystem/JAudio2/osdsp_task.h"
+#include "JSystem/JAudio2/dsptask.h"
+#include "global.h"
+#include "os.h"
+
+void DSPReleaseHalt2(u32) {
+    CRASH("We do not directly emulate the DSP");
+}
+void DsetupTable(u32, u32, u32, u32, u32) {
+    // Nada.
+}
+void DsetMixerLevel(f32) {
+    // Nada for now, but maybe we should care about this?
+}
+void DsyncFrame2ch(u32, u32, u32) {
+    CRASH("We do not directly emulate the DSP");
+}
+void DsyncFrame4ch(u32, u32, u32, u32, u32) {
+    CRASH("We do not directly emulate the DSP");
+}
+
+void DspBoot(void (*)(void*)) {
+    CRASH("We do not directly emulate the DSP");
+}
+void DspFinishWork(u16) {
+    CRASH("We do not directly emulate the DSP");
+}
+int DSPSendCommands2(u32*, u32, void (*)(u16)) {
+    CRASH("We do not directly emulate the DSP");
+}
+
+void DsyncFrame2(u32, u32, u32) {
+    CRASH("We do not directly emulate the DSP");
+}