- [NEW] Minim makefile

- [NEW] Sound stops while debugging
- [CHG] Now all sound related code is in the zx_ula module

zx_ula.cpp

@@ -97,4 +97,39 @@ namespace zx_ula
 
     uint8_t get_border_color() { return border_color; }
     uint8_t get_ear() { return ear; }
+
+
+
+
+    SDL_AudioDeviceID sdlAudioDevice;
+    uint8_t sound_buffer[1024];
+    uint16_t sound_pos;
+
+    void audioCallback(void * userdata, uint8_t * stream, int len)
+    {
+        const uint16_t top = sound_pos < len ? sound_pos : len;
+        memcpy(stream, sound_buffer, top);
+        sound_pos=0;
+    }
+
+    void sound_init()
+    {
+        SDL_AudioSpec audioSpec{11025, AUDIO_U8, 1, 0, 220, 0, 0, &audioCallback, NULL};
+        sdlAudioDevice = SDL_OpenAudioDevice(NULL, 0, &audioSpec, NULL, 0);
+    }
+
+    void sound_enable()
+    {
+        SDL_PauseAudioDevice(sdlAudioDevice, 0);
+    }
+
+    void sound_disable()
+    {
+        SDL_PauseAudioDevice(sdlAudioDevice, 1);
+    }
+
+    void sound_update()
+    {
+        sound_buffer[sound_pos++] = ear*128;
+    }
 }