Search found 1300 matches

by Pr0f
Thu Nov 18, 2021 8:10 pm
Forum: Software & Programming
Topic: NOOB QUESTION: learning machine code
Replies: 38
Views: 6448

Re: NOOB QUESTION: learning machine code

you'll probably need more than one book - as there's 68000 assembly programming - and then there's the specific application of programmming 68008 code on the Sinclair QL. The book Dilwyn mentions is a good one, for more general techniques I found the cybex "Programming the 68000" a useful ...
by Pr0f
Fri Nov 12, 2021 12:00 pm
Forum: Software & Programming
Topic: Minerva - In need of some help please
Replies: 17
Views: 3710

Re: Minerva - In need of some help please

Dilwyn has a useful list of some of the ROMS associated with the QL and it's peripherals - there are some Sandy ones amongst the list:

http://www.dilwyn.me.uk/qlrom/index.html
by Pr0f
Tue Nov 09, 2021 9:52 pm
Forum: QL Emulation
Topic: Have I found a bug in QPC2?
Replies: 10
Views: 3083

Re: Have I found a bug in QPC2?

I wonder if it's worth including this in your article when you publish it? - as it's a good illustration for those of us that are prone to making mistakes like this (I am including myself in that).
by Pr0f
Thu Oct 28, 2021 10:00 pm
Forum: Hardware
Topic: QL Eprom programmer
Replies: 48
Views: 20600

Re: QL Eprom programmer

Has anyone got a dissassmbly of the QEPIII ROM ? I think if we had that it might be an easier task to expand the capabilities. I would add these as wish list items too: 1) use a different device/devices to address the I/O so that the E signal is no longer required - the 6821's used kind of force tha...
by Pr0f
Wed Oct 27, 2021 9:55 pm
Forum: Hardware
Topic: Hermes status
Replies: 87
Views: 17799

Re: Hermes status

Here is a very interesting vendor from Poland that has several available batches of 8749 IPC chips. Ignore the first 4 which are one time programmable used, hence already programmed and not erasable. https://www.ebay.de/str/tvsatelectronic/IC-Microcontroller/_i.html?_storecat=18701871014&_sop=2...
by Pr0f
Mon Oct 25, 2021 8:57 am
Forum: The Off-Topic Section
Topic: Norm's "mere" woman sentence.
Replies: 12
Views: 3159

Re: Norm's "mere" woman sentence.

It's a shame we can't use HTML like tags

e.g.

[SARCASM]The written word should be read without inflection or emotion[/SARCASM]


Personally I love a good emoticon :-D
by Pr0f
Sun Oct 24, 2021 5:12 pm
Forum: The Off-Topic Section
Topic: Norm's "mere" woman sentence.
Replies: 12
Views: 3159

Re: Norm's "mere" woman sentence.

I saw it was in quotes so assumed it was meant to be taken tongue in cheek. I do have a problem with the over censoring that now seems to be creeping into IT - The product I work with - NetBackup - has the concept of a Master server - but now it seems our documents need rewriting to call these "...
by Pr0f
Sat Oct 23, 2021 2:19 pm
Forum: General QL Chat
Topic: Wrist Rest Gel
Replies: 13
Views: 3665

Re: Wrist Rest Gel

Vinegar or glass cleaner is a good solvent for silicon(e)
by Pr0f
Fri Oct 15, 2021 8:30 pm
Forum: Hardware
Topic: Backplane and other problems
Replies: 31
Views: 8024

Re: Backplane and other problems

looking at the circuit diagram for the medic- it also uses the same SP0-SP3 decoding scheme as the QEPIII - meaning if your backplane doesn't alter any of these SPx signals - the QEPIII and Medic disk interface are trying to use the same address. If you cut the line for SP0 on the backplane after th...
by Pr0f
Fri Oct 15, 2021 6:21 pm
Forum: Hardware
Topic: Backplane and other problems
Replies: 31
Views: 8024

Re: Backplane and other problems

QEPIII also uses the synchronous bus signal E which is not provided by Gold or SuperGold cards.