| Working on the Scherzo [message #100515] |
Wed, 01 October 2008 05:15  |
Mike Audet
Messages: 294
Registered: December 2008
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Senior Member |
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Hi All,
I just thought I'd post an update. I've compiled the Scherzo and I'm running
the verison I complied. I've been working through the design changes I need
to make. This kernel mode stuff is tricky. But, I thnink I've got a dresign
that will work. It might just take a couple of weeks to get a build out
that we can test.
Things are moving forward.
All the best,
Mike
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| Re: Working on the Scherzo [message #100520 is a reply to message #100515] |
Wed, 01 October 2008 09:10  |
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Mike, it's just amazing to see this. This is every bit as much a
landmark moment for the "post-discontinuation" life of the platform as
porting Scherzo to XP was in the first place.
It raises a bunch of questions - did you decide to take it "object
oriented", or are you concentrating on cleanup? How deep are the design
changes?
And aside from the aesthetics - meaning the "objective good" of
cleaning up dodgy or outdated code - what are your end-goal aims? What
do you hope will be addressed or enabled as far as end users are
concerned?
- Kerry
On 2008-10-01 05:15:14 -0700, "Mike Audet" <mike@...> said:
>
> Hi All,
>
> I just thought I'd post an update. I've compiled the Scherzo and I'm running
> the verison I complied. I've been working through the design changes I need
> to make. This kernel mode stuff is tricky. But, I thnink I've got a dresign
> that will work. It might just take a couple of weeks to get a build out
> that we can test.
>
> Things are moving forward.
>
> All the best,
>
> Mike
"... being bitter is like swallowing poison and waiting for the other guy to die..." - anon
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| Re: Working on the Scherzo [message #100526 is a reply to message #100515] |
Wed, 01 October 2008 17:56 |
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Very cool..
"Mike Audet" <mike@...> wrote:
>
>Hi All,
>
>I just thought I'd post an update. I've compiled the Scherzo and I'm running
>the verison I complied. I've been working through the design changes I
need
>to make. This kernel mode stuff is tricky. But, I thnink I've got a dresign
>that will work. It might just take a couple of weeks to get a build out
>that we can test.
>
>Things are moving forward.
>
>All the best,
>
>Mike
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| Re: Working on the Scherzo [message #100531 is a reply to message #100520] |
Thu, 02 October 2008 04:22 |
Mike Audet
Messages: 294
Registered: December 2008
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Senior Member |
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Hi Kerry,
The Scherzo is a perfect and efficient design as long as you've only got
one cpu. I'm almost certain I've found the multi-cpu bug in the scherzo.
It's complicated, but it relates to the app enabling an interrupt on one
cpu when it needs to be masked by another. When there is only one cpu, the
app can't do this because the Scherzo is running and blocking out the app.
With more than one cpu, the scherzo expects it to be the only thing running,
and the other cpu messes up its operation.
It's really a minor redesign, but it's a big deal for me because I've never
worked in kernel mode before.
I'm going to do it in two stages.
1) move the DPC code into the ISR, which means I will have to use the interrupt
spin lock to guard the various queues.
2) replace the queues with newer designs that will allow for not using the
interrupt spin lock all over the place.
3) (maybe) break up the work of the old DPC and put some of it in a new DPC
to improve system efficiency (this might not be necessary).
It's tricky stuff, but we'll get there.
All the best,
Mike
KerryGalloway <kg@kerrygalloway.com> wrote:
>Mike, it's just amazing to see this. This is every bit as much a
>landmark moment for the "post-discontinuation" life of the platform as
>porting Scherzo to XP was in the first place.
>
>It raises a bunch of questions - did you decide to take it "object
>oriented", or are you concentrating on cleanup? How deep are the design
>changes?
>
>And aside from the aesthetics - meaning the "objective good" of
>cleaning up dodgy or outdated code - what are your end-goal aims? What
>do you hope will be addressed or enabled as far as end users are
>concerned?
>
>- Kerry
>
>On 2008-10-01 05:15:14 -0700, "Mike Audet" <mike@...> said:
>
>>
>> Hi All,
>>
>> I just thought I'd post an update. I've compiled the Scherzo and I'm
running
>> the verison I complied. I've been working through the design changes
I need
>> to make. This kernel mode stuff is tricky. But, I thnink I've got a
dresign
>> that will work. It might just take a couple of weeks to get a build out
>> that we can test.
>>
>> Things are moving forward.
>>
>> All the best,
>>
>> Mike
>
>
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| Re: Working on the Scherzo [message #100541 is a reply to message #100540] |
Fri, 03 October 2008 04:03 |
Mike Audet
Messages: 294
Registered: December 2008
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Senior Member |
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www.ensoniq.ca/MinimumSetup.exe
cheers!
"Josh Herzog" <pruner1@hotmail.com> wrote:
>
>Hi Mike,
>
>Any idea where I can get the "minimum setup" installer you're talking about?
>
>Thanks,
>Josh
>
>"Mike Audet" <mike@...> wrote:
>>
>>Hi Josh,
>>
>>It sounds like you need the "minimum setup" installer that Chris Thoman
>released
>>several years ago. That fixes the crash on exit.
>>
>>I'm working on it to make it work reliably on multi-cpu computers (like
>mine!)
>>
>>All the best,
>>
>>Mike
>>
>>
>>"Josh Herzog" <pruner1@hotmail.com> wrote:
>>>
>>>What exactly is new about it? Will it run better on xp than the current
>>one.
>>> The current one runs fine except when I go to close PARIS it restarts
>my
>>>computer.
>>>
>>>Thanks, it's been a while since I posted here.
>>>
>>>Josh Herzog
>>>
>>>
>>>"Mike Audet" <mike@...> wrote:
>>>>
>>>>Hi All,
>>>>
>>>>I just thought I'd post an update. I've compiled the Scherzo and I'm
>running
>>>>the verison I complied. I've been working through the design changes
>I
>>>need
>>>>to make. This kernel mode stuff is tricky. But, I thnink I've got a
>dresign
>>>>that will work. It might just take a couple of weeks to get a build
out
>>>>that we can test.
>>>>
>>>>Things are moving forward.
>>>>
>>>>All the best,
>>>>
>>>>Mike
>>>
>>
>
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