1 files changed, 8 insertions, 0 deletions
diff --git a/hram.asm b/hram.asm
index d7e0dd9..434884a 100755
--- a/hram.asm
+++ b/hram.asm
@@ -1,3 +1,11 @@
+hJoypadState  EQU $FF98  ; current state of buttons. See joy_constants.asm for which bits
+                         ; correspond to which buttons.
+hNewlyPressedButtons      EQU $FF99  ; mask for buttons that were pressed in the current frame.
+hPrevPreviousJoypadState  EQU $FF9B  ; joypad state from two frames ago. See joy_constants.asm for
+                                     ; which bits correspond to which buttons. (need a better name for this...)
+hPreviousJoypadState  EQU $FF9C  ; prevoius frame's joypad state. See joy_constants.asm for
+                                 ; which bits correspond to which buttons.
+
 hBoardYShift  EQU $FFA0  ; Vertical pixel offset of the board. For example, the board is shifted
                         ;  by small amounts when "tilt up" is used.
 hBoardXShift  EQU $FFA1  ; Horizontal pixel offset of the board. For example, the board is shifted