- [NEW] EAR getter in the ULA module

- [NEW] Flash attribute implemented
- [NEW] Sound somewhat working (BEEP hangs)

zx_screen.cpp

@@ -13,6 +13,10 @@ namespace zxscreen
     SDL_Renderer *ren = nullptr;
     SDL_Texture *tex = nullptr;
 
+    bool _flash = false;
+
+    void flash() { _flash = not _flash; }
+
     void show()
     {
         if (win) return;
@@ -48,9 +52,11 @@ namespace zxscreen
 
                 uint16_t address = 0x4000 | (x&0x1f) | ((y&0x7)<<8) | ((y&0x38)<<2) | ((y&0xc0)<<5);
                 uint8_t block = memory[address];
+                uint8_t c1 = color&0x7, c2 = (color>>3)&0x7;
+                if ((color&0x80) && _flash) { c1=c2; c2=color&0x7; }
                 for (int i=0;i<8;++i)
                 {
-                    *(pixels++)=(block&0x80) ? palette[color&0x7] : palette[(color>>3)&0x7];
+                    *(pixels++)=(block&0x80) ? palette[c1] : palette[c2];
                     block = block<<1;
                 }
             }