TerribleFire accelerator for the QL accelerator card

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Peter
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Re: TerribleFire accelerator for the QL accelerator card

Postby Peter » Wed Dec 13, 2017 4:18 pm

Zarchos wrote:What about division ? Is it just as fabulous ?

No, division is not particularly fast. Also there is no barrel shifter, shift operations take as many cycles as the shift distance. (Never use shift operations to optimize multiplication.)

Zarchos wrote:Are there other marvels in the Q68, Peter ?

I'm not aware at the moment.


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Peter
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Re: TerribleFire accelerator for the QL accelerator card

Postby Peter » Wed Dec 13, 2017 4:22 pm

tofro wrote:Aurora can't live without either a GC or SGC as CPU/memory board and is basically a "combined Super-I/O and Graphics Card for GC or SGC".

Wording to-the-point ;) Off-topic again, but do you remember if the Aurora still supported microdrives?
Last edited by Peter on Wed Dec 13, 2017 4:23 pm, edited 1 time in total.


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Zarchos
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Re: TerribleFire accelerator for the QL accelerator card

Postby Zarchos » Wed Dec 13, 2017 4:22 pm

Except to shift 1 position only 8-) but ok it doesn't optimise anything, except it'll make the source easier to reuse on another 680x0 system ;-)


Owner of various QLs including accelerated beasts, and also a happy Q68 owner ;)
Now porting SOTB to the Archies, to then port it to the Q68.
https://www.youtube.com/user/Archimedes75009/search?query=Acorn+Archimedes+Shadow+Of+The+Beast+%28100%25
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Peter
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Re: TerribleFire accelerator for the QL accelerator card

Postby Peter » Wed Dec 13, 2017 4:24 pm

Or up to 4 shifts if you run from normal SDRAM anyway. ;)


Derek_Stewart
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Re: TerribleFire accelerator for the QL accelerator card

Postby Derek_Stewart » Wed Dec 13, 2017 4:37 pm

Peter wrote:
tofro wrote:Aurora can't live without either a GC or SGC as CPU/memory board and is basically a "combined Super-I/O and Graphics Card for GC or SGC".

Wording to-the-point ;) Off-topic again, but do you remember if the Aurora still supported microdrives?


Hi,

The Aurora has no microdrive connections on the board. The Aurora was a replacement for the QL motherboard.

The only way to access microdrives was to use the QLAN to another QL.


Regards,

Derek
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Re: TerribleFire accelerator for the QL accelerator card

Postby Pr0f » Wed Dec 13, 2017 4:38 pm

Peter wrote:Wording to-the-point ;) Off-topic again, but do you remember if the Aurora still supported microdrives?


According to the Aurora manual:

• The system might wait slightly longer at startup (this is mostly undetectable) trying
to find the microdrives, which have become history.

So although it still used the ZX8302 chip, it didn't have any connectors for the Microdrives.


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Re: TerribleFire accelerator for the QL accelerator card

Postby XorA » Wed Dec 13, 2017 5:02 pm

Derek_Stewart wrote:I was going to make some more Aurora boards and build them into a QL case, with a Schon style keyboard.


Maybe you could work with Tetroid who can probably put the whole thing on one PCB?


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Re: TerribleFire accelerator for the QL accelerator card

Postby Derek_Stewart » Wed Dec 13, 2017 5:57 pm

Pr0f wrote:According to the Aurora manual:

• The system might wait slightly longer at startup (this is mostly undetectable) trying
to find the microdrives, which have become history.

So although it still used the ZX8302 chip, it didn't have any connectors for the Microdrives.


Hi,

I forgot about that feature.

Maybe a circuit little board with microdrive inteface circuitry could made attaching to the Aurora 8302 socket could be made.


Regards,

Derek
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Re: TerribleFire accelerator for the QL accelerator card

Postby Dave » Wed Dec 13, 2017 6:21 pm

Just because it's possible doesn't mean it's a good idea.


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Re: TerribleFire accelerator for the QL accelerator card

Postby Dave » Wed Dec 13, 2017 6:28 pm

What did I just say?

Did I just become an adult?



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