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Mail Archives: djgpp/1995/07/21/12:55:31

Date: Fri, 21 Jul 1995 13:05:30 -0400 (WST)
From: Roberto Alsina <ralsina AT ultra4 DOT unl DOT edu DOT ar>
To: DJGPP AT sun DOT soe DOT clarkson DOT edu
Subject: Re: An attempt to run CONTRIB\SBLASTER\SB.C


On Fri, 21 Jul 1995, A.Appleyard wrote:

> > The options H and P mean that you have a SB-16, so you have a "H"igh DMA
> > and a "P" something that he doesn't know. The program is intended for SbPro
> > or other 8-bit sound board. ...
> 
>   My autoexec.bat here says   SET BLASTER=A220 I5 D1 H5 P330 T6
> 

I guess my answer was a little confusing, so here it goes again:

Yes: the program uses the BLASTER string to set the IRQ, DMA and other 
things it uses. The Sound Blaster 8 had only 1 DMA, and it was indicated 
by the D#, that is: use the 1st DMA. A is the base i/o address, I is the 
IRQ. 
The SB-16 has 2 DMAS, so it adds the H# to indicate the second DMA.
It also adds the P# for base midi, i think.

Since the program doesn't expect that (and doesn't need it anyway, it 
ignores it, and tells you your BLASTER environment has strange things in it.

Hope i got it straight this time.

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