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by martyn_hill
Thu Apr 12, 2018 8:29 pm
Forum: Hardware
Topic: New video output system
Replies: 17
Views: 516

Re: New video output system

Great initiative Dave!

Will QVid v2 squeeze the visible scanline in to 64us to better suit the available upscalers (and PAL TV, for that matter...)?
by martyn_hill
Sun Apr 08, 2018 3:00 pm
Forum: Hardware
Topic: All RAM chips destroyed??
Replies: 62
Views: 4206

Re: All RAM chips destroyed??

Hi again Tomas As Rich said, the other positions of optional links are obscured by those three zero-ohm 'resistors' (note the single black-band == zero ohms). It apparently proves easier to automate the component assembly process using zero-ohm resistors rather than actual bare wires... The links in...
by martyn_hill
Sun Apr 08, 2018 1:12 pm
Forum: Hardware
Topic: All RAM chips destroyed??
Replies: 62
Views: 4206

Re: All RAM chips destroyed??

Hi Tomas Without wishing to go too far off Cristian's original topic, those JUx represent wire-links/zero-ohm resistors on the Iss-5 boards to accommodate different EPROM/ROM configurations before the masked ROMs were finalised towards end of life of the Iss-5 release. They appear immediately betwee...
by martyn_hill
Sat Apr 07, 2018 10:29 pm
Forum: QL Emulation
Topic: QEmulator support for old MAC Powerbooks...
Replies: 17
Views: 818

Re: QEmulator support for old MAC Powerbooks...

Hi again Daniele So, just to close the loop on this little excursion in to retro-QL-emulation ( :) ), I can confirm that the PPC version of Q-Em (v2.2.1) that you kindly dug-up for us runs nicely on the PowerBook 5300cs (100MHz 603e PPC) - and FAR quicker than v3.0.4, 68k version (as you said it wou...
by martyn_hill
Sat Apr 07, 2018 2:34 pm
Forum: QL Emulation
Topic: QEmulator support for old MAC Powerbooks...
Replies: 17
Views: 818

Re: QEmulator support for old MAC Powerbooks...

Thank you Daniele!

I'll try it out this afternoon!
by martyn_hill
Fri Apr 06, 2018 2:15 pm
Forum: Hardware
Topic: 68060 based QL system?
Replies: 69
Views: 2287

Re: 68060 based QL system?

Thanks Peter!

Assuming then that the FPGA option effectively represents an upgraded Q68, I'll vote for that option :-)
by martyn_hill
Fri Apr 06, 2018 11:21 am
Forum: Hardware
Topic: 68060 based QL system?
Replies: 69
Views: 2287

Re: 68060 based QL system?

Hi Peter Thanks for the initiative... Given my limited knowledge at this level, I think I'd need to have it explained in a little more detail as to the relative benefits/limitations of each option before I could form and share an informed opinion. For example: a) What potential clock-speeds can an F...
by martyn_hill
Thu Apr 05, 2018 10:10 pm
Forum: QL Emulation
Topic: QEmulator support for old MAC Powerbooks...
Replies: 17
Views: 818

Re: QEmulator support for old MAC Powerbooks...

Hi again Daniele Thanks, I have successfully run QEmu on the PowerPC based 5300cs - sluggish, but a bit of fun! If you ever did happen to find the native PPC version of QEm, I'd love to try that too. Meanwhile, the 190cs is completely dead (motherboard corroded in places from battery leakage, I reck...
by martyn_hill
Wed Apr 04, 2018 11:03 am
Forum: Hardware
Topic: Hermes or SuperHermes, this is the problem!
Replies: 1
Views: 154

Re: Hermes or SuperHermes, this is the problem!

Hi Giorgio Good question. The difference between the sizes of the two extension files is considerable, though nether one is _that_ big (Hermes IPCEXT: 356 bytes, sHermes IPCEXT: 5600 bytes.) One can leverage the IPCVER$ command which should differentiate between Hermes/sHermes or original 8049, but ...
by martyn_hill
Sun Apr 01, 2018 2:24 pm
Forum: General QL Chat
Topic: Good News
Replies: 5
Views: 438

Re: Good News

Now, being April 1st, might this be just a bit of fun? :-)

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