From: Michael Schmitz <schmitzmic@gmail.com>
To: Richard Z <rz@linux-m68k.org>, Finn Thain <fthain@linux-m68k.org>
Cc: will@sowerbutts.com, linux-m68k@vger.kernel.org, geert@linux-m68k.org
Subject: Re: [PATCH RFC v3 2/2] m68k/q40: add data_swab option for pata_falcon to byte-swap disk data
Date: Fri, 18 Aug 2023 07:07:39 +1200 [thread overview]
Message-ID: <e332b0d4-0d4e-095d-1fee-1962223798bd@gmail.com> (raw)
In-Reply-To: <F32F62FE-2A74-4648-8BF1-0D1A1E76309B@linux-m68k.org>
Hi Richard,
On 17/08/23 22:27, Richard Z wrote:
> Nitpicking now, there is nothing classic about little endian as all
> older computers were either big or mid endian.
Right, but IDE was introduced on little endian hardware.
Maybe 'IDE default byte order' would be more exact here.
> It is rather some rare ide host adapters like the Q40 one reversed the
> byte order of 16bit words which was cheap and convenient in the
> 1980-9ies but not interoperable with the large majority of other host
> adapters resulting in a reversed byte/16bit order on disk.
True - installing an IDE disk from e.g. Atari on a Mac, Amiga or PC
wasn't something you'd have antcipated at that time. Floppy disks were
for data interchange.
Cheers,
Michael
>
> Richard
next prev parent reply other threads:[~2023-08-17 19:08 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-17 3:49 [PATCH RFC v3 0/2] Q40 IDE fixes Michael Schmitz
2023-08-17 3:50 ` [PATCH RFC v3 1/2] m68k/q40: fix IO base selection for Q40 in pata_falcon.c Michael Schmitz
2023-08-17 3:50 ` [PATCH RFC v3 2/2] m68k/q40: add data_swab option for pata_falcon to byte-swap disk data Michael Schmitz
2023-08-17 10:15 ` Finn Thain
2023-08-17 11:47 ` Geert Uytterhoeven
2023-08-17 19:21 ` Michael Schmitz
2023-08-17 21:28 ` Michael Schmitz
2023-08-18 14:33 ` Geert Uytterhoeven
2023-08-18 23:53 ` Finn Thain
2023-08-21 7:46 ` Geert Uytterhoeven
2023-08-21 11:08 ` Finn Thain
2023-08-21 20:36 ` Michael Schmitz
2023-08-21 23:18 ` Finn Thain
[not found] ` <F32F62FE-2A74-4648-8BF1-0D1A1E76309B@linux-m68k.org>
2023-08-17 19:07 ` Michael Schmitz [this message]
2023-08-17 19:14 ` Michael Schmitz
2023-08-18 0:36 ` Finn Thain
2023-08-17 3:56 ` [PATCH RFC v3 0/2] Q40 IDE fixes Michael Schmitz
2023-08-17 9:20 ` William R Sowerbutts
2023-08-17 20:25 ` William R Sowerbutts
2023-08-17 21:29 ` Michael Schmitz
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