o cleanup

tools/bsnes/ppu/ppu.hpp

@@ -0,0 +1,42 @@
+#include "counter.hpp"
+
+class PPU : public PPUcounter, public MMIO {
+public:
+  virtual void enter() = 0;
+
+  uint16 *output;
+
+  struct {
+    bool render_output;
+
+    bool frame_executed;
+    bool frames_updated;
+    unsigned frames_rendered;
+    unsigned frames_executed;
+  } status;
+
+  //PPU1 version number
+  //* 1 is known
+  //* reported by $213e
+  uint8 ppu1_version;
+
+  //PPU2 version number
+  //* 1 and 3 are known
+  //* reported by $213f
+  uint8 ppu2_version;
+
+  virtual bool interlace() const = 0;
+  virtual bool overscan() const = 0;
+  virtual bool hires() const = 0;
+
+  virtual void latch_counters() = 0;
+
+  virtual void frame();
+  virtual void power();
+  virtual void reset();
+  virtual void enable_renderer(bool r);
+  virtual bool renderer_enabled();
+
+  PPU();
+  virtual ~PPU();
+};