Add SPU memory allocation

include/PSX/Auxiliary/math_helper.hpp

@@ -34,4 +34,14 @@ namespace JabyEngine {
         }
         return result;
     }
+
+    template<typename T>
+    static constexpr T min_of(T a, T b) {
+        return (a < b) ? a : b;
+    }
+
+    template<typename T>
+    static constexpr T max_of(T a, T b) {
+        return (a > b) ? a : b;
+    }
 }

include/PSX/SPU/spu.hpp

@@ -0,0 +1,11 @@
+#pragma once
+#include "../jabyengine.hpp"
+
+namespace JabyEngine {
+    namespace SPU {
+        const uint8_t* allocate_voice(uint8_t voice, size_t size);
+        void           deallocate_voice(uint8_t voice);
+
+        void dump();
+    }
+}

include/PSX/System/IOPorts/spu_io.hpp

@@ -4,6 +4,10 @@
 
 namespace JabyEngine {
     namespace SPU_IO {
+        namespace MemoryMap {
+            static constexpr uintptr_t ADPCM = 0x01000;
+        }
+        
         enum struct Mode {
             Linear      = 0,
             Exponential = 1,
@@ -126,7 +130,8 @@ namespace JabyEngine {
             static constexpr auto EchoBits = BitRange::from_to(0, 23);
         };
 
-        static constexpr size_t VoiceCount = 24;
+        static constexpr size_t VoiceCount  = 24;
+        static constexpr size_t ReverbCount = 1;
 
         struct Key {            
             __declare_io_port_w_type(inline, ubus32_t, On,     0x1F801D88);