Re: Help with calling Interrupts in MS BASIC PDS 7.1

From	Leo <ttdhead@gmail.com>
Newsgroups	comp.lang.basic.misc
Subject	Re: Help with calling Interrupts in MS BASIC PDS 7.1
Date	2013-04-03 09:34 +1100
Organization	A noiseless patient Spider
Message-ID	<kjfm44$ikq$1@dont-email.me> (permalink)
References	(1 earlier) <51559e4f$0$6856$e4fe514c@news2.news.xs4all.nl> <kj4e52$jcv$1@dont-email.me> <kj4iim$e68$1@dont-email.me> <kjedoo$tcf$1@dont-email.me> <kjf1f5$elg$1@dont-email.me>

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After serious thinking Karl E. Peterson wrote :
> Leo brought next idea :
>> Karl E. Peterson submitted this idea :
>>> Looks to me like you're "getting back" exactly what you put in?
>>>
>>>   &H1600 = 5632
>>
>> I presume based on the other sub thread, that is because of it being a 
>> Windows interupt for detecting Windows or XMS V1 so therefore nothing is 
>> actualy there when they arent running.
>
> Have you read the docs?  As I recall, these return values were rather 
> explicitly defined.

The docs just specify that AH can be &H00 and if that's the case, they 
don't specify what AL would be as AH=&H00 means nothing installed. 
AH=&H00 is what you get when you mask off AL with outregs.ax AND 255 
when ax = &H1600. I suspect based on the other sub thread and the docs 
that that was intended. http://www.ctyme.com/intr/rb-4495.htm I hope 
that explains better what I was trying to say.

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Help with calling Interrupts in MS BASIC PDS 7.1 Leo <ttdhead@gmail.com> - 2013-03-29 22:10 +1100
  Re: Help with calling Interrupts in MS BASIC PDS 7.1 "R.Wieser" <address@not.available> - 2013-03-29 15:00 +0100
    Re: Help with calling Interrupts in MS BASIC PDS 7.1 Leo <ttdhead@gmail.com> - 2013-03-30 03:10 +1100
      Re: Help with calling Interrupts in MS BASIC PDS 7.1 Leo <ttdhead@gmail.com> - 2013-03-30 03:14 +1100
        Re: Help with calling Interrupts in MS BASIC PDS 7.1 "R.Wieser" <address@not.available> - 2013-03-30 03:32 +0100
          Re: Help with calling Interrupts in MS BASIC PDS 7.1 Leo <ttdhead@gmail.com> - 2013-03-31 00:28 +1100
            Re: Help with calling Interrupts in MS BASIC PDS 7.1 "R.Wieser" <address@not.available> - 2013-03-30 16:06 +0100
              Re: Help with calling Interrupts in MS BASIC PDS 7.1 Leo <ttdhead@gmail.com> - 2013-04-02 22:07 +1100
                Re: Help with calling Interrupts in MS BASIC PDS 7.1 "R.Wieser" <address@not.available> - 2013-04-02 16:14 +0200
                Re: Help with calling Interrupts in MS BASIC PDS 7.1 Leo <ttdhead@gmail.com> - 2013-04-03 02:37 +1100
                Re: Help with calling Interrupts in MS BASIC PDS 7.1 "R.Wieser" <address@not.available> - 2013-04-02 23:41 +0200
                Re: Help with calling Interrupts in MS BASIC PDS 7.1 Leo <ttdhead@gmail.com> - 2013-04-03 09:39 +1100
                Re: Help with calling Interrupts in MS BASIC PDS 7.1 "R.Wieser" <address@not.available> - 2013-04-03 22:50 +0200
      Re: Help with calling Interrupts in MS BASIC PDS 7.1 Karl E. Peterson <karl@exmvps.org> - 2013-03-29 10:23 -0700
        Re: Help with calling Interrupts in MS BASIC PDS 7.1 Leo <ttdhead@gmail.com> - 2013-04-02 22:05 +1100
          Re: Help with calling Interrupts in MS BASIC PDS 7.1 Karl E. Peterson <karl@exmvps.org> - 2013-04-02 09:39 -0700
            Re: Help with calling Interrupts in MS BASIC PDS 7.1 Leo <ttdhead@gmail.com> - 2013-04-03 09:34 +1100

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