Re: A86: on interrupt

To: assembly-86@lists.ticalc.org
Subject: Re: A86: on interrupt
From: Dux Gregis <assets@eden.rutgers.edu>
Date: Wed, 01 Apr 1998 19:49:14 -0500
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
References: <01bd5dc1$5620bfa0$0e906420@usinet.jpmeyer>
Reply-To: assembly-86@lists.ticalc.org




Kirk Meyer wrote:

> basic programs aren't run from $d748.  you can call them with call $4c47 w/
> the name in _op1.   all you need to do is turn off that doggoned memory
> error!!!!            Kirk

call $41a4 will turn it off, but your calc probably wont last very long

>
>
> -----Original Message-----
> From: Dux Gregis <assets@eden.rutgers.edu>
> To: assembly-86@lists.ticalc.org <assembly-86@lists.ticalc.org>
> Date: Tuesday, March 31, 1998 11:48 PM
> Subject: Re: A86: on interrupt
>
> >
> >
> >
> >Klukan wrote:
> >
> >> Andy S Johnson wrote:
> >>
> >> > [original messages snipped, we're trying to run a basic program from
> >> > an
> >> > interupt or an event handler (sqrtKey), the normal rom call does not
> >> > work]
> >> >
> >> > Has anyone tried loading another asm program using the module idea and
> >> >
> >> > running the basic program from there?
> >>
> >> Are you guys loading the program you want to branch to into the correct
> >> RAM location?  Interrupts are not run in the area of memory designated
> >> for ASM programs.
> >
> >No, but [sqrt] programs are :-)  Trust me, that's how I disassembled
> >[sqrt]KEY.
> >
> >> If you try to simply branch to a program, it may be
> >> attempting to load it into the interrupt space.
> >
> >I don't know if basic programs are run from $d748 or not.??
> >
> >> Just an idea.  If this
> >> is it, all that has to be done is copy the variable data into the ASM
> >> exec space and jump to _exec_asm.  That should work.  There is no reason
> >> why you can't load a program from an interrupt.  Rascall uses an
> >> interrupt to return to the shell if a program is misbehaving or if the
> >> user ends the program by hitting [ON] while the program is running and
> >> then selecting the appropriate option on the menu that comes up.
> >
> >That interrupt doesn't execute basic or manipulate variables, I think it
> >just throws an error handler.
> >
> >> I
> >> think this is right, but correct me if I am wrong (about the program
> >> loading).
> >>
> >> -Jeremy
> >
> >
> >
> >

References:

Re: A86: on interrupt

From: "Kirk Meyer" <_@ibm.net>