Re: AppleMouse firmware easter egg

[Jerry <awanderin@yahoo.ca>]

Michael J. Mahon <mjmahon@aol.com> writes:

> <aiiadict@gmail.com> wrote:
>> On Saturday, August 11, 2012 11:39:47 AM UTC-7, TomCh wrote:
>>> btw, I had to look up the ctrl-e monitor cmd. For those that don't know it (to set A,X,Y):
>>> 
>>> CTRL-E
>>> 
>>> :FF C4 40<CR>
>> 
>> 
>> That is a good command to know!  How would you be able to preserve the
>> Accumulator with the value you put in it?  The monitor has to use AXY for
>> cursor position, etc..
>> 
>> control-E
>> :AA XX YY
>> <return>
>> 
>> right back to the monitor, which will be using AXY for its own code... 
>> Typing JMP XXXX or C400G would destroy the contents of the register???
>> 
>> 
>> Rich
>
> I imagine that it updates the save locations from which the registers are
> restored prior to a Go. 

Yes, and those are $45, $46, $47.  A variety of Apple reference manuals
mention this.


--
Jerry    awanderin at yahoo dot ca