VirtualhorizHi EQU 100 VirtualhorizLo EQU 100 VirtualVertHi EQU 100 VirtualVertlo EQU 100 BS2 DC.W 0 mask_shift dc.w 0 OLDBOB DC.L BOBBACK1 OLDBOB_BUFFER DC.L BOBBACK2 FRIENDLY DC.L FRIEND1 FRIENDLY_BUFFER DC.L FRIEND2 REPLACE_AREA DC.L SAVE1 REPLACE_AREA_BUFFER DC.L SAVE2 CLEAR_AREA dc.l CLEAR1 CLEAR_AREA_BUFFER dc.l CLEAR2 SAVEBACK_AREA dc.l 0 SAVEBACK_BUFFER dc.l 0 CLEAR_LIST dc.l LIST1 CLEAR_LIST_BUFFER dc.l LIST2 Temporary_Object_LIST ds.l Max_No_Objects+1 Available_Pointer dc.l 0 Last_Alien_In_List dc.l 0 rsreset SaveBack_Screen_Ptr rs.l 1 SaveBack_Memory_Ptr rs.l 1 SaveBack_Graphics_Struct rs.l 1 SaveBack_Struct_Size rs.l 1 rsreset Clear_Screen_Pointer rs.l 1 Clear_Mask_Pointer rs.l 1 Clear_Graphics_Struct rs.l 1 Clear_Shift_Value rs.w 1 Clear_Struct_Size rs.w 1 BOBBACK1 DS.L Max_No_Objects+1 BOBBACK2 DS.L Max_No_Objects+1 FRIEND1 DS.L Max_No_Objects+1 FRIEND2 DS.L Max_No_Objects+1 LIST1 DS.L Max_No_Objects+1 LIST2 DS.L Max_No_Objects+1 SAVE1 DS.L Max_No_Objects*SaveBack_Struct_Size+1 SAVE2 DS.L Max_No_Objects*SaveBack_Struct_Size+1 CLEAR1 DS.l Max_No_Objects*Clear_Struct_Size+1 CLEAR2 DS.l Max_No_Objects*Clear_Struct_Size+1 Alien_Dead EQU 0 Alien_Hit EQU 1 Alien_Dying EQU 2 Alien_OffScreen EQU 3 Ground_Collision EQU 4 No_Saveback EQU 5 Alien_Burn EQU 6 Alien_Burn2 EQU 7 * New Extra Modes Alien_Left EQU 0 Alien_Platform EQU 1 Alien_Bonus EQU 2 Alien_Object EQU 3 Platform_Activate EQU 4 Alien_Master EQU 5 FLAG_OBJECT EQU 1<