es40-developers

[ES40-developers] DMA rewrite

[Brian W. <bdw...@in...>]

I rewrote the dma controller in preparation for screwing around with the
floppy controller.  It contains everything except the actual meat:  the
transfer itself...I need to see how the floppy disk is going to work
before I can fill that in.

Brian

Re: [ES40-developers] DMA rewrite

[Camiel V. <iam...@gm...>]

Hi Brian,

I saw you had a question (in the code) as to the documentation for the
IO port 480 range; Well, there is a bit of info in the datasheet
(there's a link on http://www.es40.org/Ali_M1543C) on page 173:

Channel     Low-page register     High-page register
0               0x87                        0x487
1               0x83                        0x483
2               0x81                        0x481
3               0x82                        0x482
5               0x8B                        0x48B
6               0x89                        0x489
7               0x8A                        0x48A

On Thu, Apr 17, 2008 at 10:27 PM, Brian Wheeler <bdw...@in...> wrote:
> I rewrote the dma controller in preparation for screwing around with the
>  floppy controller.  It contains everything except the actual meat:  the
>  transfer itself...I need to see how the floppy disk is going to work
>  before I can fill that in.
>
>  Brian
>
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