Re: Date and time not updating in Applesoft BASIC program?

[DMn2004404 <dmn2004404@gmail.com>]

On Jan 31, 3:47 pm, DMn2004404 <dmn2004...@gmail.com> wrote:
> On Jan 30, 10:06 pm, mspangler <mspang...@gemsi.com> wrote:
>
>
>
> > On Jan 30, 5:38 pm, "Michael J. Mahon" <mjma...@aol.com> wrote:
>
> > > DMn2004404 wrote:
> > > > Here's the scenario: I have written an Applesoft BASIC program that
> > > > uses a No-Slot Clock in my Enhanced Apple //e. I have RUN the program
> > > > and had it execute a routine that displays the system date and time.
> > > > When the program reaches this routine at, let's say, 6:32 PM, it says
> > > > the time is 6:32 PM. So far, it appears the date and time routine is
> > > > working properly. But, let's say I've had this same program running
> > > > continuously for, say, two minutes, and the time is now 6:34 PM, but
> > > > when I send the computer back to the date and time routine, the
> > > > program says the time is still 6:32 PM. What's the deal here, and is
> > > > there any way to rectify it?
>
> > If you just want to tickle the time; this note from way back will
> > work;"
>
> > ProDOS doesn't read the clock continuously.  It reads the clock
> > whenever it
> > gets asked to do something for which a time might be necessary.
>
> > You can force ProDOS to read the clock and update the time locations
> > by
> > calling the MLI routine GET_TIME from machine language:
> >      JSR $BF00     ;Call ProDOS MLI
> >      DFB $82        ;$82 = GET_TIME
> >      DW  $0000     ;GET_TIME doesn't use a parameter list
> >      ...           ;Your code continues here
>
> > Thus, to read the clock from BASIC, first POKE the following machine
> > language routine into memory (put it anywhere you have a few free
> > bytes--it's
> > relocatable):
> >      32,0,191,130,0,0,96
>
> > Then, whenever you need to read the time, CALL the machine language
> > routine, and PEEK the time out of the ProDOS global page. "
>
> > This is what I use. It works on a GS too.  If you search this
> > newsgroup for Get-time you'll find the source of the above code.
>
> Searching the group for "GET_TIME" directed me to a thread called
> "Clock, BASIC, and IIgs." I tried the code in my BASIC program, and it
> worked. Thanks for the help.
>
> Brandon

But, I have another question as to where in memory to POKE the machine
language routine, as I'm adding the clock routine to a program that I
would guess is already using locations 768, 769, 770, etc., because
when the program calls them later on, I get undesired results.

How can I find out where in memory I can plug this machine language
routine in?

Brandon