void __asm c2p_8_020 (register __a2 UBYTE *fBUFFER,
                      register __a4 PLANEPTR *planes,
                      register __d0 ULONG signals1,
                      register __d1 ULONG signals2,
                      register __d4 ULONG signals3,
                      register __d2 ULONG pixels,     // width*height
                      register __d3 ULONG offset,     // byte offset into plane
                      register __a5 struct Task *othertask,
                      register __a3 UBYTE *chipbuffer); // 2*width*height

void __asm c2p_6_020 (register __a2 UBYTE *fBUFFER,
                      register __a4 PLANEPTR *planes,
                      register __d0 ULONG signals1,
                      register __d1 ULONG signals2,
                      register __d4 ULONG signals3,
                      register __d2 ULONG pixels,     // width*height
                      register __d3 ULONG offset,     // byte offset into plane
                      register __a1 UBYTE *xlate,
                      register __a5 struct Task *othertask,
                      register __a3 UBYTE *chipbuffer); // 2*width*height