Re: Help with IIGS Slot Register $C02D

[Hugh Hood <hughhood@earthlink.net>]

Antoine,

I'll digest and try the routine you posted and will let you know if it works
to enable the SCC internal printer firmware when 'Your Card' is the initial
cold-boot setting and the $C02D slot register is subsequently changed to the
internal printer firmware from the initial 'Your Card' setting.

FWIW, tickling $CFFF within the change routine (my idea) didn't help.

Thanks.




Hugh Hood






in article 
7765b1bd-b78a-46f2-9a34-55a1b624859e@u10g2000yqk.googlegroups.com, Toinet at
antoine.vignau@laposte.net wrote on 11/3/10 3:28 PM:

> 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