Search found 1349 matches

by Peter
Thu Oct 14, 2021 11:29 am
Forum: General QL Chat
Topic: Sir Clive passed away.
Replies: 45
Views: 2025

Re: Sir Clive passed away.

There is also something in the German news magazine "Spiegel": https://www.spiegel.de/netzwelt/gadgets/clive-sinclair-mr-inventor-der-vater-des-zx81-ist-tot-a-8ce72d69-7b90-47a1-b892-fe711e3e4147 I wasn't aware that Sir Clive continued to use a slide ruler instead of a computer for himself...
by Peter
Thu Oct 14, 2021 11:18 am
Forum: Hardware
Topic: Q68 Order Process
Replies: 220
Views: 57426

Re: Q68 Order Process

How about an option without QLNET sockets? That would save work and time for those who don't need it.
And thanks for continuing to build the Q68 - even with the delays it is the only QL-compatible mainboard in production these days.
by Peter
Tue Oct 12, 2021 10:02 pm
Forum: Hardware
Topic: SMSQE in MisTer
Replies: 42
Views: 1633

Re: SMSQE in MisTer

If it is a fast serial communication link then I think a fast pipe coupled dual core Qzero makes a lot of sense. It is. I might also add some fast dual port RAM as an additional means to exchange data. Just not sure right now if dualcore is the way to go. Since each CPU needs one separate SDRAM in ...
by Peter
Tue Oct 12, 2021 10:05 am
Forum: General QL Chat
Topic: Fluffy Dice for your Sinclair QL
Replies: 6
Views: 518

Re: Fluffy Dice for your Sinclair QL

Many thanks for sharing! Wish the QL had come with Minerva-level OS right away...
by Peter
Sun Oct 10, 2021 10:33 am
Forum: Hardware
Topic: SMSQE in MisTer
Replies: 42
Views: 1633

Re: SMSQE in MisTer

(I am currently using two Q68s. One Q68 is used for calculation, display, keyboard and mouse I/O and the other just calculates.) The Qzero has two completely separate SDRAMs, so a loosely coupled dual core SMSQ/E machine like this, basically two QLs on one chip, would be feasible. My idea was to co...
by Peter
Sat Oct 09, 2021 10:48 am
Forum: Hardware
Topic: SMSQE in MisTer
Replies: 42
Views: 1633

Re: SMSQE in MisTer

When Peter Graf announced his Qzero I was genuinely excited. I thought: here is the beginning of something truly different and, in my opinion, different is the main attraction of TT’s proposals. I do admit that the Qzero had (still has?) some exciting potential and I feel sorry that I must have dis...
by Peter
Mon Oct 04, 2021 11:38 am
Forum: QL Emulation
Topic: SMSQmulator for Android?
Replies: 11
Views: 465

Re: SMSQmulator for Android?

Several years ago, I tried a socalled "J2SE for Android" library which provided Swing and AWT classes for Android. Only used it with a relatively simple GUI though.
by Peter
Sat Oct 02, 2021 3:14 pm
Forum: Software & Programming
Topic: Q68 QoE Ethernet Driver
Replies: 75
Views: 9510

Re: Q68 QoE Ethernet Driver

Many thanks for the update!
by Peter
Fri Sep 10, 2021 9:58 am
Forum: Hardware
Topic: Expanding the QL's address space beyond 1M (+primer on building QL compatible machines)
Replies: 30
Views: 2288

Re: Expanding the QL's address space beyond 1M (+primer on building QL compatible machines)

The 16550 was an 'improvement' which actually had a set of it's own problems but the main star of the show was a 16-byte receive and transmit FIFO. That's mildly put. If I remember correctly, the 16550 was so buggy that the FIFO could not be used at all. National Semiconductor later released the 16...
by Peter
Fri Sep 10, 2021 9:23 am
Forum: Hardware
Topic: Expanding the QL's address space beyond 1M (+primer on building QL compatible machines)
Replies: 30
Views: 2288

Re: Expanding the QL's address space beyond 1M (+primer on building QL compatible machines)

The idea that the designers probably had in mind was to use SER1 to drive the printer and SER2 for modems or other communication. And that wasn't too much of a bad idea when the QL was designed. It appears to me that one parallel port instead of the second serial was a much better idea, even at des...