Re: RFC: remove set_fs for m68k

Michael Schmitz
2021-08-26T07:47:17Z

Hi Brad,

thanks, I can see the tables in that one. My searches only showed the
newer version which comes in two parts ...

The 'vector offset' 8 in the format/vector field indicates a bus error.
Not sure that helps pin down the cause without debugging the 030 bus
error handler. Format b bus faults might be quite frequent ...

Cheers,

Michael

On 26/08/21 11:30, Brad Boyer wrote:
> On Thu, Aug 26, 2021 at 10:59:30AM +1200, Michael Schmitz wrote:
>> On Wed, Aug 25, 2021 at 8:44 PM Andreas Schwab <schwab@linux-m68k.org> wrote:
>>> On Aug 25 2021, Michael Schmitz wrote:
>>>
>>>> the manuals on the NXP web site don't have the exception frame format
>>>> tables,
>>> See 8.4 EXCEPTION STACK FRAME FORMATS.
>> Not in my copy of part 2 of the 030 manual. The section is there, the
>> pages that are marked 'Exception Stack Frame format' (pp 8-32, 8-33)
>> are there, but the pages are blank (except for header and footer).
>>
>> Tried with acroread, xpdf and evince.
>>
>> The original Programmer's Reference Manual has the frame formats in
>> section B.2 (without any explanation of the fields' meanings,
>> however).
> It shows up fine for me in the embedded PDF reader in Chrome. There's
> what is clearly a picture of the formats, as the image quality is
> really bad. I can read it, but the lines are kind of jagged and the
> text is pretty messy. Specifically, I'm looking at page 300 (8-33) in
> the PDF found at this URL:
>
> https://www.nxp.com/docs/en/reference-manual/MC68030UM.pdf
>
> Perhaps those other programs aren't handling however that raw image
> is encoded inside the file.
>
> Brad Boyer
> flar@allandria.com
>