Massive rewrite

This commit rewrites the emulator halfway from scratch to make it
easier to change and maintain in the future. The emulator core was
rewritten to adhere to the released Bedrock specification (earlier
versions implemented an older prototype specification, which is no
longer relevant).

This commit also adds proper support for running multiple concurrent
Bedrock instances. This was previously supported in a limited manner
for the on-screen keyboard, but now works for any regular program as
well, with switching being performed by pressing the L or R bumper
buttons. This is disabled by default, as programs will still need to
be baked into the emulator and hand-loaded.

1 files changed, 19 insertions, 14 deletions

diff --git a/arm9/source/devices/input.h b/arm9/source/devices/input.h
index 4f91ed5..6df947b 100644
--- a/arm9/source/devices/input.h
+++ b/arm9/source/devices/input.h
@@ -1,21 +1,26 @@
-#include <nds.h>
-#include "../types/circbuf.h"
-
 #ifndef INPUT_H_
     #define INPUT_H_
 
+    #include "../bang.h"
+    #include "../types/circbuf.h"
+
+
+    // Bedrock input device.
     typedef struct {
-        bool pointer;      // pointer active
-        bool keyboard;     // keyboard active
-        CircBuf keybuffer; // queued keypresses
-        u16 x,y;           // pointer position
-        u8 navigation;     // navigation state
-        u8 gamepad;        // gamepad state
-        bool wake;         // wake flag
+        bool pointer;        // Pointer active
+        bool keyboard;       // Keyboard active
+        u16 x, y;            // Pointer position
+        u16 x_read, y_read;  // Read caches for pointer position
+        CircBuf keybuffer;   // Queued keypresses
+        u8 gamepad;          // Gamepad state
+        bool wake;           // Wake flag
     } InputDevice;
 
-    void inp_receive_byte(InputDevice *inp, u8 byte);
-    void inp_read_gamepad(InputDevice *inp);
-    void inp_read_navigation(InputDevice *inp);
-    void inp_read_touch(InputDevice *inp);
+    // Methods.
+    void input_reset(InputDevice *input);
+    void input_read_x(InputDevice *input);
+    void input_read_y(InputDevice *input);
+    void input_receive_key(InputDevice *input, u8 byte);
+    void input_update_gamepad(InputDevice *input);
+    void input_update_touch(InputDevice *input);
 #endif