-void SnapPCX(SDL_Surface *); // Take a PCX snapshot
-void BlitChar(SDL_Surface *, BYTE *, BYTE *); // Show NAMCO screen
-void Sprite(DWORD, WORD, WORD, BYTE, WORD); // Show sprite on the screen
+// Exported vars
+extern uint32_t palette[256]; // Screen physical palette
+extern uint8_t ccolor[256][8]; // Character color PROM values
+extern uint8_t scolor[128][16]; // Sprite color PROM values
+extern bool charBankSwitch;