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Re: AppleMouse firmware easter egg
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