QL-SD ROM

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mk79
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QL-SD ROM

Postby mk79 » Sat Mar 28, 2020 2:11 pm

Surprise, I developed some piece of hardware: https://www.kilgus.net/2020/03/28/ql-sd-rom-the-early-days


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dilwyn
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Re: QL-SD ROM

Postby dilwyn » Sat Mar 28, 2020 3:36 pm

Great news, Marcel. Excellent idea for a device. Hope it makes it to market in due course.


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Andrew
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Re: QL-SD ROM

Postby Andrew » Sat Mar 28, 2020 3:40 pm

Great news Marcel !
put me on your waiting list for 2 QL-SD ROM and 2 QL-VGA !!!


bixio60
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Re: QL-SD ROM

Postby bixio60 » Sat Mar 28, 2020 3:57 pm

Andrew wrote:Great news Marcel !
put me on your waiting list for 2 QL-SD ROM and 2 QL-VGA !!!


Me too, put me on the list for 2 of each of them: Ql-Vga and QL-SD

Great news

Many thanks for your work and passion to QL world.

Fabrizio


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Tesla
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Re: QL-SD ROM

Postby Tesla » Sat Mar 28, 2020 4:02 pm

Marcel Kilgus , Stupor QL mundi. :o

Great work Marcel, I hope this piece will be avalaible very soon, In this case please, count me for one of this. 8-)
Best regards
Marco Banchero


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Re: QL-SD ROM

Postby afx » Sat Mar 28, 2020 6:13 pm

Wow Marcel this is great news! .. :shock: :o

The definitive extension for our beloved QLs.

A brilliant job. Congratulations.


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Dave
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Re: QL-SD ROM

Postby Dave » Sat Mar 28, 2020 7:32 pm

It's not the first QL hardware to program its own flash, but it will be the first released hardware, yes.


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Cristian
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Re: QL-SD ROM

Postby Cristian » Sat Mar 28, 2020 8:47 pm

Sensational! You've just opened new doors...
If I remember correctly, the 768K Trumpcard (and clones) compromises the use of ROM port, or am I wrong?


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janbredenbeek
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Re: QL-SD ROM

Postby janbredenbeek » Sat Mar 28, 2020 10:03 pm

Cristian wrote:Sensational! You've just opened new doors...
If I remember correctly, the 768K Trumpcard (and clones) compromises the use of ROM port, or am I wrong?

IIRC the Trump card only monitors a (first) access to the ROM port by the CPU to page in its extension ROM at $C0000 (note: not $C000) so the QL finds it after linking in the ROM in the ROM port, after which it is relocated to the $10000-$17FFF range and paged out again from $C0000.
The Miracle hard disk used the ROM port too and did (of course) work in conjunction with the Trump card (it even had a through-connector for extension ROMs).

Jan


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Dave
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Re: QL-SD ROM

Postby Dave » Sat Mar 28, 2020 10:13 pm

Though I can't think of a use case where someone would use a QL-SD and want a Miracle hard drive.



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