The Sinclair QL Forum

Hi Martin,


Is there a system trap, or vector to do this.


I may be wrong, but I don't believe that there is a system trap.


And is it 68060/Q60 specific. If so, how could I test for a Q60.


Copyback is only available on 68040+. Offset 161 in the system variables should hold the processor ...

Hi all,
As it's one of the hottest days of the year, I thought I'd put out an update to my seasonal program.


GladTimings.gif

GladTimings.zip


As a reminder; GladTimings is a mixture of seasonal images, sprites and a speed test.
In this version there are some additional seasonal images plus a ...

Hi,

It's likely that the data cache will need to be flushed out to memory after this routine; before it can be executed as code.

; Make 28 copies of this code in allocated buffer
L014E clr.l (a0)+
move.l #$207AFFFA,(a0)+ ;movea.l $01FFFC(pc),a0
move.l #$4E903D40,(a0)+ ;jsr (a0)
move.l ...

Hi Martin



I also noticed this, look for the bit marked <<<<<<-----------
btst #$05,$04(a2,d4.w) <<<<<<-----------

It tests bit 5, I don't know why. It's too low down to be a flag like the others.
I have not investigated it any further, yet.


It's testing bit $05 of the high byte, which is ...

Hi Martin,

Yes, I too can confirm that the test program "q602test_obj" runs OK on my Q60.

Also QDOCK which previously crashed for me also loads without issue, although I am unable to test its functionality as I don't have it configured. I don't really use SMSQ/E on my Q60 so have to load ...

Hello,


If the affected copyback cache line is not yet written out to memory (bad luck) and the (expected same) data is read with an upper address bit set , it will read from external memory, not cache, which differ. (Because the cache address does not wrap around like external memory, generating ...

Fire OS next...


I have this working on an old Kindle Fire 7 running FireOS 5 (android 5.1) that had been relegated to the tech drawer.

I had to copy "puae_libretro_global.uae" from the "saves" directory into the config directory, then rename that copy to be "puae_libretro_android.cfg ...

Hi


I have a few impertinent questions:-


The very first very welcome question.
Maybe those 200+ downloads were all AI bots. :)


1. Can one use a Google Chromecast rather than a Google Chromecast with TV?


No, I don't think that the original Chromecast runs Android.


2. I could not find ...

pjw wrote: Sun Feb 02, 2025 12:58 pm Very nice! I havent tested extensively, but it seems to do what it says on the tin..

Thanks.
It took longer than expected and I nearly gave up on it a few times.

Current v1.01 source for the HOME_DIR extension here...

I hope this is not too far off topic...

The thing that originally killed my enthusiasm in developing QDOS Classic any further, was that it was developed to run on hardware that eventually became obsolete. And if you had a laptop, I couldn't see a reason why you would run it over QPC2 or Q-emulator ...