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Re: [Qemu-devel] Sound and MinGW problems on Windows host
From: |
Sylvain Petreolle |
Subject: |
Re: [Qemu-devel] Sound and MinGW problems on Windows host |
Date: |
Thu, 8 Jul 2004 14:12:31 +0200 (CEST) |
> > Make sure you have correct setup for adress/irq/dma/hdma
>
> Could you tell me the difference between dma and hdma? In DOS-times
> I wasn't using PC ;). Now in setups I use 220h/irq 5/dma 5
This could explain why the sound is choppy for you...
A dma is a direct channel for memory access.
DMA from 0 to 3 have 8 bit access, and
DMA from 4 to 7 have 16 bit acess (these are HDMAs)
Youre using the dma 5 (16 bit) when it should be a 8 bit acess.
Current config for qemu is (in DOS settings) :
SET BLASTER=A220 I5 D1 H5 T5
D1 is dma 1, H5 is for hdma 5.
T5 means Soundblaster 16
=====
Sylvain Petreolle (spetreolle_at_users_dot_sourceforge_dot_net)
Say NO to software patents
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"You believe it's the year 1984, when in fact, its closer to 2184"1984 / Matrix
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