exxos blog - random goings on

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exxos
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Re: exxos blog - random goings on

Post by exxos »

These FPU's have a high failure rate :( like 50% of them :roll:

Meanwhile.. just soldered this up...

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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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People should find solutions to problems, not find problems with solutions.
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DoG
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Re: exxos blog - random goings on

Post by DoG »

exxos wrote: Fri Jul 17, 2020 5:02 pm These FPU's have a high failure rate :( like 50% of them :roll:
What is FMUL:Brand?
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Re: exxos blog - random goings on

Post by exxos »

DoG wrote: Fri Jul 17, 2020 5:18 pm What is FMUL:Brand?
No idea, I didn't write that app.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: exxos blog - random goings on

Post by DoG »

exxos wrote: Fri Jul 17, 2020 5:44 pm No idea, I didn't write that app.
I know. I thought it said something in the read me but I had a read myself and it was very sparse. Maybe "Function Multiply", but "Brand" I have no idea?
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exxos
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Re: exxos blog - random goings on

Post by exxos »

DoG wrote: Fri Jul 17, 2020 6:56 pm I know. I thought it said something in the read me but I had a read myself and it was very sparse. Maybe "Function Multiply", but "Brand" I have no idea?
"BRAND" comes up loads of times, I don't know what it means. https://www.exxosforum.co.uk/forum/viewt ... 00&p=19330
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
czietz
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Re: exxos blog - random goings on

Post by czietz »

RTFM certainly helps. :lol:

Quoting the README:
Three large random tables are used. One provides unit double precision values in
the range (-1.0 -> +1.0), another raises unit random values to 2^+/-N where N is
a random in the range (-128 -> +127), another uses pure random binary data which
may include denormalised or NaN values. These tables are used as source data for
many of the tests.
More precisely: brand = binary data. drand = unit random values. erand = exponentiated random values. The test in question ("FMUL") multiplies the values from these random tables and checks the results.
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Re: exxos blog - random goings on

Post by DoG »

Thanks for clarification.
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Re: exxos blog - random goings on

Post by exxos »

:headbang:

Can't see anything wrong with the new RAM card unless all the RAM is faulty. Though it seems more like a RAS/CAS fault as it progressively gets worse.
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https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: exxos blog - random goings on

Post by exxos »

Right so A9 needs to be connected :lol: :roll:

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https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: exxos blog - random goings on

Post by PhilC »

You'd have been surprised and disappointed if it didn't need a bodge wire.
If it ain't broke, test it to Destruction.
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