SNES: Added back support for DSP3 and DSP4

I've imported dsp.h from upstream at f9ae8fd. It had to be modified a bit to work (types, dynamic allocations) but not very much.
ducalex · Dec 24, 2024 · 99ae023 · 99ae023
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commit 99ae023
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diff --git a/retro-core/components/snes9x/README.md b/retro-core/components/snes9x/README.md
@@ -2,5 +2,7 @@
 
 ## Based on:
 
+I believe it was based on https://github.com/libretro/snes9x2010
+
 ## Modifications:
 
diff --git a/retro-core/components/snes9x/src/cpu.c b/retro-core/components/snes9x/src/cpu.c
@@ -3,7 +3,7 @@
 #include "snes9x.h"
 #include "memmap.h"
 #include "ppu.h"
-#include "dsp1.h"
+#include "dsp.h"
 #include "cpuexec.h"
 #include "apu.h"
 #include "dma.h"
@@ -65,7 +65,8 @@ static void CommonS9xReset()
 
    S9xResetDMA();
    S9xResetAPU();
-   S9xResetDSP1();
+   if (Settings.DSP)
+      S9xResetDSP();
    if (Settings.OBC1)
       ResetOBC1();
    if (Settings.C4)

diff --git a/retro-core/components/snes9x/src/dsp.c b/retro-core/components/snes9x/src/dsp.c
Original file line number	Diff line number	Diff line change
Expand Up		@@ -2,5 +2,7 @@

		## Based on:

		I believe it was based on https://github.com/libretro/snes9x2010

		## Modifications: