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m68k x86 address space   Message List  
Reply | Forward Message #19 of 313 |
Re: m68k x86 address space

--- In amithlondev@y..., "Jacob Dahl Pind" <rachael_@g...> wrote:
> Hi
>
> I have changes a bit in the kernel, so my it has support for
> soundcards again, as my soundcard aint support by the ahi driver.
> If I alloc a buffer on the amiga side can I then just transfere the
> address to x86 side ? or are there some mapping changes ?
> I just wantede a audio device on the amigfa side that pipe it over to
> /dev/audio on linux side. Have anyone tried that ?
>
> Regards Jacob Dahl Pind
>
>
> --
> CBM, Amiga,Vintage hardware collector
> Email: Rachael_@g...
> url: http://rachael.dyndns.org

Hi Jacob,

which soundcard did you have ? We allready made new audio drivers
and looking allways for some helpfull testers.

For your programming questions:

Yes m68k and x86 addresses are same

BUT

If you write address pointers in hardware registers, you have to
check which io region you use. Amithlon supports 2 io regions,
one in little endian and one in big endian where read and writes
are swapped automatically from cpu emu.

If you use linux drivers, you have to make sure that the used
hardware resources are not available to AmigaOS side and that
such things as irq's are cleared in case of cpu emulation reset.

With pci cards this is done over the powerpci.library and some
special mechanism with so called release code tables.

Best regards

VMC Harald Frank




Wed Mar 20, 2002 12:02 pm

vmconline
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Message #19 of 313 |
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Hi I have changes a bit in the kernel, so my it has support for soundcards again, as my soundcard aint support by the ahi driver. If I alloc a buffer on the...
Jacob Dahl Pind
rachael_@...
Send Email
Mar 19, 2002
5:02 pm

... Hi Jacob, which soundcard did you have ? We allready made new audio drivers and looking allways for some helpfull testers. For your programming questions: ...
vmconline
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Mar 20, 2002
12:02 pm

... Actually, Harald, if you use linux drivers, you *don't* have to worry about clearing interrupts in case of an emulation reset. That's because the driver...
Bernie Meyer
umisef
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Mar 20, 2002
3:27 pm

... Right now a isa aztech sound galaxy and I have another motherboard with an onboard opl3 based soundcard, but that board gave me alot of problems as I had...
Jacob Dahl Pind
rachael_@...
Send Email
Mar 20, 2002
7:25 pm
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