[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Help with IIGS Slot Register $C02D

There may be other softswitches to use...

SETSLOTCXROM	EQU	$C006
SETINTCXROM	EQU	$C007
RDCXROM		EQU	$C015

*
* Since we'll make a call to sethooks and doffsvk, we gotta
*  make sure that the all the $CX00 rom space is banked in.
*  We also must restore it when we're done.
*
entry		LDA	|RDCXROM
		PHA
		STA	|SETINTCXROM

*
do your stuff
*

exit		PLA
		BMI	exit2
		STA	|SETSLOTCXROM
exit2		EQU	*

*
*
*

SETSLOTCXROM	EQUDS.B	1	;use ROMS on cards
SETINTCXROM	EQUDS.B	1	;use internal ROM
RDCXROM		EQUDS.B	1	;Bit 7=1 if using int rom

Good luck,
antoine