A86: _exec_basic

To: "A86" <assembly-86@lists.ticalc.org>
Subject: A86: _exec_basic
From: "Kirk Meyer" <kirkmeyer@bigfoot.com>
Date: Wed, 1 Mar 2000 17:35:03 -0700
Reply-To: assembly-86@lists.ticalc.org


The mystery is finally solved. We were using the wrong ROM call. The call on
the 83+ is _parseinp (according to TI), so I searched TI's official
includes. There it was, _parseinp, location $4C57. Now we knew about $4C57
before, but it didn't switch back to ROM page $0D, so we thought it caused a
crash. So, just use this code to execute a BASIC program if the name is in
OP1:

     call $4c57
     ld   a,$0D
     out  (5),a

Also, you should flush the menus before executing if you haven't already:

     call $49dc

And you MUST exit your program through jforce:

     jp   $409c

(If you don't, nothing TOO bad should happen, but you will get an ERROR 07
SYNTAX)

I tested this with various programs, compiled and uncompiled, and it seems
to work all the time.

Kirk

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