The Sinclair QL Forum

Hi, I thought the emulator programme: QPC2 v5, SMSQmulator, SQLux, Q-Emulator added QDOS header or trailer to store the executable information. The emulator programme then removed this header/trailer when moved to a QDOS environment. What is being implied on the QL Facebook Group, is that SMSQ/E ha...

On the QL, whatever your sprite format is, convert it to "screen-compatible format" not in the drawing loop, but rather outside if you want to be fast. On the QL it makes a lot of sense to pre-process the sprite data upfront (either by doing it in an initialisation routine or even outside ...

Such modems typically draw power from the DTR line.

On the QL, it's even simpler: Both pinouts of the serial versions have a +12V pin.

I re-partitioned my SD card to use some smaller "GEM" partitions with 16MB and that now seems to work, even on an external ACSI harddisk 16 MB was a lot back in those days ;) Sorry, but I know my Atari and SMSQ partitions were larger than 16Mb. Back in the day SMSQ/E supported at least GE...

Well, I think the answer to the OP's question is as simple as pragmatic: If it works, use it, if it doesn't, don't

Typo or intention? ;) As I apparently can't find any code that accesses Atari-native file systems (I really did not search exhausively, though), I am a bit at loss here. Isn't Atari-native is the same as FAT16 except slight differences? Maybe there simply is no separate code? Did you try a max. par...

Well, the heat argument I can understand. Yes, a linear regulator produces a lot more heat than a switching one.

The interference argument, I don't. The Tracos (and alikes) being switching regulators tend to introduce a lot more interference into a circuit than the good old 7805.

I have opinions on this, because I have heard stories like yours before. The switching regulators apparently tend to create initial spikes on their power output that seems to disturb the QL's power-on-reset circuitry. I've even heard stories of QLs that had their 7805 replaced and died (although I r...

I found an old QL-Toady article [...] Typo or intention? ;) That was, of course, intentional ;) As I apparently can't find any code that accesses Atari-native file systems (I really did not search exhausively, though), I am a bit at loss here. Isn't Atari-native is the same as FAT16 except slight d...

Thank you all! Hmmm. I think I have now tried all possible permutations of Adapters, LUNs and partitions. Can't get it to work. My disk has four partitions, C: to E: are of type BGM created with HDDRIVER, the fourth one is of type QWA and hosts the QXL file system (which works perfectly when I mount...