🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: comp.sys.amiga.tech
Article #7514

Re: Filter ON/OFF

#7514
From: Bob Fahey <NECR0SIS>
Date: Mon, 17 Dec 1990 03:46
25 lines
1728 bytes
aaron@stat.tamu.edu (Aaron Hightower) writes:

>I have an Amiga3000 and was wondering how I can control the audio filter.
>I have an articly previously posted that mentions clearing the 1st bit
>in location $BFE001.  This doesn't seem to work correctly on the 3000.

Hmm... I'll probably regret posting this, since the last time I did so, 
I got flamed to hell. (I am talking about reading/writing registers directly).
It seems that a few C programmers would rather write a large quantity of code
instead of just dealing with the info at the the source, i.e. registers. (No
offense, C programmers). If someone knows how to toggle the filter in C, I 
would be interested in seeing the code....

Anyway, Here's how I have done it (not saying it is CORRECT, but it works 
nonetheless) ;-)
filter_on:	move.w	#$7000,$bfe000
filter_off:	move.w	#$7002,$bfe000

>Thanks,
> Aaron Hightower

|      ///| a.k.a. NECR0SIS     faheyr@silver.ucs.indiana.edu  -or-          |
|  \\\///_|                     faheyr@rose.ucs.indiana.edu                  |
|   \XX/  |  M  I  G  A      "'Ere long done do does did..."  - The Smiths   |
|             "...life is seen through the eyes of a dog..."  - Skinny Puppy |
Technical Details
Message-ID: <faheyr.661405562@silver>
Path: arc1-ca.pugleaf.net!utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!sdd.hp.com!spool2.mu.edu!news.cs.indiana.edu!iuvax!silver!faheyr
References: <50729@eerie.acsu.Buffalo.EDU> <10940@helios.TAMU.EDU>

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!sdd.hp.com!spool2.mu.edu!news.cs.indiana.edu!iuvax!silver!faheyr
From: faheyr@silver.ucs.indiana.edu (Bob Fahey <NECR0SIS>)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Filter ON/OFF
Keywords: AUDIO FILTER
Message-ID: <faheyr.661405562@silver>
Date: 17 Dec 90 03:46:02 GMT
References: <50729@eerie.acsu.Buffalo.EDU> <10940@helios.TAMU.EDU>
Sender: news@iuvax.cs.indiana.edu
Lines: 25