Read by the routines at PO_ANY, PO_ATTR and PLOT, and updated by the routines at PO_RIGHT, PO_SCR, TEMPS, OUT_FLASH, CLASS_07, CLASS_09 and CO_TEMP_1. This system variable is accessed by some routines via the IY register at IY+$57.

Bit	Description
0	OVER bit (temporary)
1	OVER bit (permanent)
2	INVERSE bit (temporary)
3	INVERSE bit (permanent)
4	INK 9 if set (temporary)
5	INK 9 if set (permanent)
6	PAPER 9 if set (temporary)
7	PAPER 9 if set (permanent)