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Re: 6502 assembler and emulator in JavaScript
<bieling@terra.es> wrote:
> On Apr 29, 12:28 pm, demp...@actrix.gen.nz (David Empson) wrote:
> >
> > On further reflection, it isn't $FE and $FF in an Apple II either, the
> > random number increment is somewhere around $3E and $3F.
> >
> > David Empson
>
> <onlyJoking>
> ... yes, 'around', much closer to $4e and $4f,
> note that the keyboard isn't at $ff either...
Yes, yes. So long since I've used that feature I couldn't remember the
exact location, just the general vicinity. (I remembered it was
something-E and something-F in the lower half of the zero page, but it
wasn't 3E and 3F because they are part of the monitor's parameter
fields, hence "somewhere around". Wasn't sure whether it was 2E/2F or
4E/4F.)
> didn't sleep last night ?
It seems that I never get much sleep.
--
David Empson
dempson@actrix.gen.nz