The Sinclair QL Forum

Hi Jbizzel, It's best to install the RAM disk driver and copy to ram1_ first, then to storage media. The QL cannot handle serial and storage I/O at the same time, and serial buffering is limited to just 81 bytes. The con_ driver is also quite slow. For reliable transfers you can use SERnet or QTPI t...

I have 2 Q68 with same build and Q68 ROM Loader v1.05, both seem to load Minerva from Q68_ROM.SYS or from SMSQ/E. A bit strange. I have updated the FPGA to v1.05 and running Minerva with no problems. One question what does Minerva do different to SMSQ/E? SMSQ/E has all drivers built-in, whereas Min...

I have received Dilwyn's Q68 which seems to boot up with no cursor. So a little more investigation required. Mark Swift has done a lot of research on this, see https://github.com/janbredenbeek/Minerva4Q68/issues/1 He was able to type a few lines on his Q68 before freezing. From the video it looks l...

Interesting, you managed to jump to a system variable (SV.RAND) which contains a random number... And by chance it happened to have a value $Axxx which is always illegal to the 68000 (but often used by emulators).

Thanks Tofro, so "OFFSET 0" puts the code at the start of the 4kb? It still won't assemble code after an OFFSET though (the offset section is at the end of my source file) You need to add a SECTION directive after the block defined after OFFSET 0. E.g.: OFFSET 0 label1 DS.L 1 label2 DS.L ...

Just a short explanation on why you shouldn't be fiddling with PC_INTR ($18021) directly: If you write directly to that address (a hardware register), you're confusing the system that normally maintains a copy on what was last written there. Next, you seem to be writing $ff there, which re-arms all...

I tend to use code like that: timerLinkage timer_pllk ds.l 1 ; Polling interrupt linkage timer_plad ds.l 1 ; Polling interrupt service routine address ... I can't get most of this to assemble especially anything referencing "(A6)" which throws "relocatable value not allowed here"...

Have settled on the Quanta version of GST but have replaced the QED_exe with Jans v2 QED (BTW I couldn't find any version of QED that matched the downloadable, from Dilwyn's download pages, Quanta QED manual though, but my old physical manual seems to have the correct commands. e.g. the Quanta manu...

You need to disable interrupts anyway on standard QDOS when using the second screen. But MT.IPCOM keeps working as it communicates directly with the IPC, so keyboard input and sound output is still possible.

Looks like an Issue 5 motherboard which originally had IC17 fitted but that's been snipped out after the ROMs have been upgraded to JM at some point. There's a Hermes manual and the co-processor is a Philips rather than the usual Intel chip so that could be a Hermes but I can't yet tell. A Philips-...