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From: carolyn@cbmvax.cbm.UUCP (Carolyn Scheppner)
Newsgroups: comp.sys.amiga
Subject: Re: Audio Interrupt vector
Message-ID: <1035@cbmvax.cbmvax.cbm.UUCP>
Date: Mon, 24-Nov-86 19:05:53 EST
Article-I.D.: cbmvax.1035
Posted: Mon Nov 24 19:05:53 1986
Date-Received: Tue, 25-Nov-86 00:09:59 EST
References: <8611191016.AA19776@cory.Berkeley.EDU> <1074@zen.BERKELEY.EDU>
Reply-To: carolyn@cbmvax.UUCP (Carolyn Scheppner)
Organization: Commodore Technology, West Chester, PA
Lines: 32

In article <1074@zen.BERKELEY.EDU> c55-grig@buddy.Berkeley.EDU.UUCP (Ted Griggs) writes:
>[]
  (re: interrupt example)
>Does the procedure and example program given in the ROM Kernal Manual
>actually work?

   I'm not sure which example you're talking about.  

   If you mean the Interrupt Server example (p 1-57 CBM RK, p 61 A-W Exec),
then it depends on which book you have.  The version on p. 61-62 of
the Addison-Wesley Rom Kernel: Exec manual is OK as far as I know.
The text on Interrupts is also updated in that manual.  But the version
in our older 1.1 Rom Kernel Manual (Vol. 1, p 1-57,58) is messed up.

   The major problems are:

 p.1-57 The two occurences of "sizeof(struct Interrupt *)" should be
        "sizeof(struct Interrupt)"  (no *).  You want to allocate
        (and free) an Entire Interrupt Structure NOT a Pointer to
        one.  Else you are poking values into mem you don't own.

 p.1-58 In the assembler portion, I think that in this particular
        example, the MOVE.L (A1),A0 should be MOVE.L A1,A0.


             
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Carolyn Scheppner -- CBM   >>Amiga Technical Support<<
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