Re: [Qemu-devel] Sound and MinGW problems on Windows host

[malc]

On Thu, 8 Jul 2004, [iso-8859-1] Sylvain Petreolle wrote:

> > > 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

T6 means SB16

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