Re: Did Commodore cheat with the quad density floppies?

From: Gerrit Heitsch <*gerrit_at_laosinh.s.bawue.de*> Date: Wed, 9 Jan 2019 07:38:22 +0100 Message-ID: <2c28a9bd-0df3-c013-114b-b0dd574b2818@laosinh.s.bawue.de> · gerrit_at_laosinh.s.bawue.de

On 1/9/19 12:31 AM, smf wrote:
> 
> On 08/01/2019 17:32, Gerrit Heitsch wrote:
>>
>> I know, back then there were very cheap IDE cards for ISA where they 
>> even omitted the bus buffers, effectively the IDE cable was connected 
>> directly to the ISA signals.
>>
>> From the software side, IDE behaved like a WD1003.
>>
> Only 8 bit IDE (used in the IBM XT and a590 amongst others).

Uhm, the WD1003 is the 16Bit-Controller as used in the IBM AT and 
controlled by its BIOS.

> ATA which is the official name of "IDE" (used in the IBM AT, a600, a1200 
> & a4000) behaves differently.

Not that I know... Got a source?

  Gerrit