On 5/22/2013 8:42 PM, mdj wrote:
On Thursday, 23 May 2013 09:24:45 UTC+10, Charlie wrote:Can a slot card use a softswitch location, that is not used by the //e, without causing any bus contention or other problem?No reason why not,
That's good news.
though each slot has plenty of locations assigned to it,
Yes, I'm using some of them.
so I'm not sure why you'd want to do this, other than to 'sniff' the machine state.
The reason is, I'm going to add some Apple IIgs functions to my //e, and I want them to be compatible with a IIgs. So I want to use the same locations as the IIgs does. Specifically, I'm going to add Super HiRes graphics and I want the status of the softswitch/registers to be readable from //e programs.
Charlie