Search found 143 matches

by M68008
Thu Mar 04, 2021 9:55 pm
Forum: Hardware
Topic: Sinclair QL Factory Test Jig
Replies: 38
Views: 2449

Re: Sinclair QL Factory Test Jig

Chr$ wrote:hand engraved ‘J3’ and next to the bottom row is ‘J4’ (whatever that may refer to?)


The QL joystick connectors are named J3 and J4.
by M68008
Thu Feb 25, 2021 7:19 am
Forum: Software & Programming
Topic: Run benchmarks and share your results
Replies: 29
Views: 5991

Re: Run benchmarks and share your results

A bit unstable at high speed. In some runs a test may report a duration of 0 or 1 ms, resulting in an inaccurate overall score:

QTopIndex2.jpg
by M68008
Thu Feb 25, 2021 6:50 am
Forum: Software & Programming
Topic: Run benchmarks and share your results
Replies: 29
Views: 5991

Re: Run benchmarks and share your results

3029 ;-)

QTopIndex.jpg


JS ROM, 4-year-old i7 PC, 'QemuFast' variant of Q-emuLator.
Standard Q-emuLator on the same machine gives 1359.

Perhaps the benchmark should run for a longer time for better accuracy? The INTMATH test only run for 3 ms?
by M68008
Wed Feb 03, 2021 8:38 pm
Forum: Hardware
Topic: QLUB Adapter - Initial Release...
Replies: 133
Views: 8235

Re: QLUB Adapter - Initial Release...

Emulator : QPC and QEmuLator (with Minerva) on Windows, uQLx on Unix Peer QL : BBQL (Minerva) + TK2 2.34, GoldCard (v2.32) and SuperGoldCard (v2.49) equipped-QL (both incorporate TK2), QXL-II under SMSQ/E JS ROM + TK2 also seems to work, that's what I used in my test both on the BBQL (without GC) a...
by M68008
Sat Jan 30, 2021 4:22 am
Forum: Hardware
Topic: FGPA Anyone?
Replies: 40
Views: 7700

Re: FGPA Anyone?

The trick, I've found, to Modelsim comes when you change something in some code way down in the hierarchy => that code and everything upstream needs to be re-compiled Yes, forcing recompilation was sometimes an issue! I think the problem that got me stumped for a while was that if a module has no i...
by M68008
Fri Jan 29, 2021 8:13 pm
Forum: Hardware
Topic: QLUB Adapter - Initial Release...
Replies: 133
Views: 8235

Re: QLUB Adapter - Initial Release...

When you get time, would you be willing to share the overall dimensions/measurements of the apertures, etc? Did you purchase a ready-made project-box, or 3D-print one yourself? It's a 3d printed box I designed. Here are the STL files: QLUB_Box.zip It's a bit of a tight squeeze, and may or may not w...
by M68008
Fri Jan 29, 2021 6:54 am
Forum: Hardware
Topic: QLUB Adapter - Initial Release...
Replies: 133
Views: 8235

Re: QLUB Adapter - Initial Release...

I've moved the circuit from the breadboard to a permanent circuit and box:

_DSC0104.jpg
by M68008
Sun Jan 24, 2021 5:15 am
Forum: Hardware
Topic: FGPA Anyone?
Replies: 40
Views: 7700

Re: FGPA Anyone?

Funny, I use Test909, too :-) It's a nice benchmark, at least on the QL. Too short for emulators, though. Might be difficult to debug, but since I tried the Xilinx ISE debugging environment I view Intel's SignalTap with much more appreciation, it's a 1000 times better. As someone new to FPGA, I fou...
by M68008
Sat Jan 23, 2021 8:47 am
Forum: Hardware
Topic: FGPA Anyone?
Replies: 40
Views: 7700

Re: FGPA Anyone?

I've replaced the timing logic with what I'm implementing for Q-emuLator and it's much more accurate for Mister, too: _DSC0091.jpg However, there must be an issue in IPC/ZX8302 communication, I had to use a hack where I disable ROM wait states when running IPC-related code (range 2F7C - 2FAE in JS R...
by M68008
Thu Jan 21, 2021 6:02 am
Forum: Hardware
Topic: FGPA Anyone?
Replies: 40
Views: 7700

Re: FGPA Anyone?

I dont't see where 4 cycles are added for word-size ROM access... is that somewhere?