Junkbox CP/M system?

[Allison]

>
>Subject: Re: Junkbox CP/M system?
>   From: "Chuck Guzis" <cclist at sydex.com>
>   Date: Mon, 23 Apr 2007 17:32:21 -0700
>     To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>On 23 Apr 2007 at 18:47, Jules Richardson wrote:
>
> 
>>  From a programming point of view, how easy is accessing IDE compared to a 
>> typical FDC ('765 or similar)? I did write some assembler to access an IDE 
>> drive about 12 years ago, but have long since forgotten details! :-)
>
>CF IDE is easy--it's 8 bit.  HD IDE uses a 16-bit data path for 
>sector data transfer, so that makes things a bit more involved.   
>Otherwise, the register set looks pretty much like a WD1003 PC-AT 
>type disk controller.  
>
>Cheers,
>Chuck

One thing, you do not have to use D8-15!  Sur you give up half the data 
in a sector but you also eliminate a lot of hardware.  That and even an 
old 100MB drive will yeild 50mb which by CP/M standards is the world in
a bottle.

Allison