A89: Re: Exit routine

A89: Re: Exit routine

• To: <assembly-89@lists.ticalc.org>
• Subject: A89: Re: Exit routine
• From: "Niklas Brunlid" <e96nbr@efd.lth.se>
• Date: Wed, 25 Aug 1999 14:05:32 +0200
• References: <000701beeeaf$47615080$8147a8c0@pc-de-javier>
• Reply-To: assembly-89@lists.ticalc.org

> HI
> I canīt exit my programme with RTS, I have to use Doors Esc+On to get back
> to doors!! What should I do ??? Is it because I have so many JSR and BRA
> that I donīt return to doors??
> Thanks asm people
> Javier

Check to make sure that the stack pointer (a7/sp) is the same as when you first
enterered the program at _main.
Most likely you've forgotten to restore it properly after a library call - the
ones that take arguments pushed onto the stack. They don't restore the stack
themselves.

 / Niklas Brunlid
Check out Prosit for the TI-89 / TI-92 Plus at http://c625.sparta.lu.se
Random PQF Quote follows:

"Have another drink, not-Corporal Nobby?" said Sergeant Colon unsteadily.
"I do not mind if I do, not-Sgt Colon," said Nobby.
        -- The joys of working undercover
           (Terry Pratchett, Guards! Guards!)

• A89: Exit routine
• From: "Javier" <grijalba@cvtci.com.ar>

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