[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: CiderPress v2.1.0 released
Eric Smith <eric-no-spam-for-me@brouhaha.com> wrote:
> Andy McFadden <fadden@fadden.com> writes:
>> One, called "module 6", loads at address $30. I thought that was a typo.
>> Nope: it fills up most of zero page, overwrites the stack, and keeps on
>> trucking. Sort of tricky to run that one without loading from cassette,
>> because the JSRs in the F8 ROM routines RTS to the wrong place after the
>> stack gets trampled.
>
> Surely they return to the *right* place, which just happens to be somewhere
> other than right aftter the JSR as one might normally expect?
Let me clarify: they return to the wrong place if you're doing something
other than load from cassette.
My first attempt was to just use the monitor move routine, but that failed
for the above reason.
--
Send mail to fadden@fadden.com (Andy McFadden) - http://www.fadden.com/
CD-Recordable FAQ - http://www.cdrfaq.org/
CiderPress Apple II archive utility for Windows - http://www.faddensoft.com/
Fight Internet Spam - http://spam.abuse.net/spam/ & http://spamcop.net/