extern WORD	CopperList[];
extern WORD CopFETCHMODE[];
extern WORD CopBPLCON0[];
extern WORD	CopBPLCON1[];
extern WORD CopBPLCON3[];
extern WORD CopBPLMODA[];
extern WORD CopBPLMODB[];
extern WORD CopDIWSTART[];
extern WORD CopDIWSTOP[];
extern WORD CopDDFSTART[];
extern WORD CopDDFSTOP[];
extern WORD CopPLANE1H[];
extern WORD CopPLANE1L[];
extern WORD CopPLANE2H[];
extern WORD CopPLANE2L[];
extern WORD CopPLANE3H[];
extern WORD CopPLANE3L[];
extern WORD CopPLANE4H[];
extern WORD CopPLANE4L[];
extern WORD CopPLANE5H[];
extern WORD CopPLANE5L[];
extern WORD CopPLANE6H[];
extern WORD CopPLANE6L[];
extern WORD CopPLANE7H[];
extern WORD CopPLANE7L[];
extern WORD CopPLANE8H[];
extern WORD CopPLANE8L[];

/* not used in vertical-only scrolling levels */
extern WORD CopSKY[];

/* used by y2 and xy */
extern WORD CopVIDEOSPLIT[];
extern WORD CopVIDEOSPLITMODULO[];
extern WORD CopVIDEOSPLIT2[];

extern WORD CopPLANE2_1H[];
extern WORD CopPLANE2_2H[];
extern WORD CopPLANE2_3H[];
extern WORD CopPLANE2_4H[];
extern WORD CopPLANE2_5H[];
extern WORD CopPLANE2_6H[];
extern WORD CopPLANE2_7H[];
extern WORD CopPLANE2_8H[];

extern WORD CopVIDEOSPLITRESETMODULO[];