Path: utzoo!attcan!uunet!husc6!bloom-beacon!mit-eddie!uw-beaver!tektronix!tekcrl!tekfdi!bobb
From: bobb@tekfdi.TEK.COM (Robert Bales)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Problem with double-buffering and some 1-second interrupt annoyance
Message-ID: <2256@tekfdi.TEK.COM>
Date: 20 Jul 88 20:37:58 GMT
References: <3183@crash.cts.com> <4229@cbmvax.UUCP>
Reply-To: bobb@tekfdi.UUCP (Robert Bales)
Organization: Tektronix, Inc., Beaverton, OR.
Lines: 27

In article <4229@cbmvax.UUCP> carolyn@cbmvax.UUCP (Carolyn Scheppner CATS)
writes:

>> Wade Bickel

>>                What is this "_custom" your speaking of and where is it
>>      documented? 

>It's the address of the custom chips.

>It's defined in amiga.lib and is the address of the custom chips as
>C programmers reference it:

>1. from C

>#include "hardware/custom.h"
>extern struct Custom custom;

Not quite, at least for Manx V 3.6. In hardware/custom.h, "Custom" is a
#define, so after the preprocessor, there is no "Custom" left around. The
normal references Custom.xxxx work fine but the extern declaration isn't needed
and causes an error.

   Bob Bales
   Tektronix, Inc.

I help Tektronix make their instruments. They don't help me make my opinions.