Non-functioning Pascal ext ROM

[Andrew]

FYI: here are my MDVs, I am not sure which version they are.

The mdvs are for v1.8

[Derek_Stewart]

Hi,

Here is the start of the PRL Pascal v1.18 ROM disassembled:

Note the Keyword ROM is defined with address L0028 and the the jump to location L0036 to initialise the ROM.

[RalfR]

I'm surprised that t0nyt doesn't see anything despite the ROM header.

[t0nyt]

I'm surprised that t0nyt doesn't see anything despite the ROM header.

This is with the v1.8 dongle plugged in (it's exactly the same with BBQL or SGC)

[NormanDunbar]

the ROM command doesn't work, it says "bad name", so it might be that the ROM is not detected at all.

As far as I remember, the ROM command is part of the ROM itself, so if the ROM command itself isn't working, the ROM wasn't recognised. You should see the ROM name displayed on screen when you power up the QL with the ROM plugged in -- this is normal for ROMs and the Pascal manual says as much too. If you didn't, it's not there or not working or the ROM slot is broken.

HTH

Cheers,
Norm.

[jobdone]

Quote '(They still don’t display anything on the F1/F2 screen though)' . This rom is not supposed to , typing 'ROM' in in superbasic should show the rom.

[jobdone]

See attachments for what should happen with and without the rom loaded in superbasic after typing 'rom'

[t0nyt]

Quote '(They still don’t display anything on the F1/F2 screen though)' . This rom is not supposed to , typing 'ROM' in in superbasic should show the rom.

That was my point, it’s not supposed to

[jobdone]

I think if it still didn't work I'd ask myself what else I have loaded in ROM taking the space? Not sure how well this ROM works with tk2 even.

[AndyZX]

The mystery is solved, yey!

In the end the problem emerged to be Toolkit II that is included in my JS ROM package. Thank you all for providing useful suggestions which prompted further my train of thought. Actually I came to this solution via Q-emulator where I noticed a potential mismatch between the two ROMs resulting in the message "bad rom". Thanks to @Andrei in one of his previous posts for pointing that Pascal ROM needed to be inserted in the back ROM section (and not in the ext ROM section) and to @jobdone for questioning whether it would work with TKII. Although Pascal ROM seems to work fine with TKII on Q-emulator if the slots are reversed (i.e. Pascal in the back rom and TKII in the ext rom), the cofiguration is clear with regard to the original QL. When I turned the TKII switch off, the ROM command gave "Pascal 1.8" message and I could proceed to loading MMC Pascal, which worked without any problems. I am sure that cleaning the ROM with fiberglass brush was useful, too, so thanks @NormanDunbar for that suggesiton. Thanks, the QL Forum, for being such a fantastic place!