Re: Apple II Emulation in HyperCard

["Mark Cummings" <NOTfigjams@primus.com.au>]

> So I just do this:
>
> if addr=49249 then
>   -- hollow apple key
>   put 0 into res
>   if the commandkey is down then add 128 to res
>   add random(127) to res
>   return res
> end if
>
> Right?
>
> (By the way, the above code is 100% valid in the programming language I'm
> using!)

Right... ?
It all looks greek to me :), but why add garbage if you don't need it ?
I assume you are testing for the presence or absence of the Open-Apple key
in your program. Or are you writing an emu ???

I would do it this way:

if peek(49249)>127 then
    begin
    {do stuff if Open Apple key was down}
    end;
else
    begin
    {do other stuff}
    end;
end; {if}
{carry on with rest of program}

BTW I tested reading 49249 on my two Apple IIe's and they both gave random
results for the lower 7 bits, although mostly high. I forgot to mention
before that floating inputs are normally seen as hi (1's).

Mark