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by Pr0f
Sat Dec 16, 2017 10:59 pm
Forum: Hardware
Topic: Gold Card / Super Gold Card ROM patching...
Replies: 19
Views: 488

Re: Gold Card / Super Gold Card ROM patching...

Many thanks Jan - that should help quite a lot with working out what routines the Gold Card patches in the ROM :-)

I have a Gold card ROM image somewhere, I'm sure of it.
by Pr0f
Sat Dec 16, 2017 4:57 pm
Forum: Hardware
Topic: Gold Card / Super Gold Card ROM patching...
Replies: 19
Views: 488

Re: Gold Card / Super Gold Card ROM patching...

In the Qemulator, does the Gold Card option effectively mimic this behaviour ?

Meaning a saved copy of the lower 48K would effectively tell me what got changed?

Perhaps I found a Gold card after all :-)
by Pr0f
Sat Dec 16, 2017 2:43 pm
Forum: QL Emulation
Topic: Q-emulator add on hardware api
Replies: 2
Views: 272

Re: Q-emulator add on hardware api

Many thanks for the heads up :-)
by Pr0f
Fri Dec 15, 2017 11:22 pm
Forum: Hardware
Topic: Gold Card / Super Gold Card ROM patching...
Replies: 19
Views: 488

Re: Gold Card / Super Gold Card ROM patching...

I have a ROM image of the GC 2.24 (taken from the ROM itself which is 64K with some gaps). I can post it if you like. regards, Jan. Hi Jan, Thanks - I think what I am looking for is an image of the first 48K of RAM in the GC / SGC after the 2nd reboot, i.e. after the ROM image has been copied and p...
by Pr0f
Fri Dec 15, 2017 10:40 pm
Forum: Hardware
Topic: Gold Card / Super Gold Card ROM patching...
Replies: 19
Views: 488

Re: Gold Card / Super Gold Card ROM patching...

Can't you just make an image of the edited ROM, then compare it against the original? A lot of stuff has to align up still, so it's only going to be simple substitutions of specific locations/vectors etc? That would be my approach - but sadly I no longer own a Gold Card or Super Gold Card to make t...
by Pr0f
Fri Dec 15, 2017 10:36 pm
Forum: Hardware
Topic: Gold Card / Super Gold Card ROM patching...
Replies: 19
Views: 488

Re: Gold Card / Super Gold Card ROM patching...

Strictly speaking the ROM is copied to the RAM and occupies the same address space it would have done in a standard QL, so the vectors could all still be valid... Well, directly after the copy the vectors still point to the same addresses in copied code as in ROM - But we don't want a 100% copy - a...
by Pr0f
Fri Dec 15, 2017 10:35 pm
Forum: Hardware
Topic: Gold Card / Super Gold Card ROM patching...
Replies: 19
Views: 488

Re: Gold Card / Super Gold Card ROM patching...

Hi, Strictly speaking the ROM is copied to the RAM and occupies the same address space it would have done in a standard QL, so the vectors could all still be valid... So if you are correct, to get SMSQ/E working on a BBQL with ram expansion, the copy to ram should disabled. Somehow I think it is no...
by Pr0f
Fri Dec 15, 2017 7:15 pm
Forum: Hardware
Topic: Gold Card / Super Gold Card ROM patching...
Replies: 19
Views: 488

Re: Gold Card / Super Gold Card ROM patching...

Strictly speaking the ROM is copied to the RAM and occupies the same address space it would have done in a standard QL, so the vectors could all still be valid...
by Pr0f
Fri Dec 15, 2017 2:23 pm
Forum: Hardware
Topic: Gold Card / Super Gold Card ROM patching...
Replies: 19
Views: 488

Re: Gold Card / Super Gold Card ROM patching...

I have those downloaded, will have to have a peek at them.

I am guessing that the GC/SGC still respect the trap and vector addresses from the ROM's, otherwise things like the I2C on the Minerva wouldn't work.
by Pr0f
Fri Dec 15, 2017 1:39 pm
Forum: Hardware
Topic: Gold Card / Super Gold Card ROM patching...
Replies: 19
Views: 488

Gold Card / Super Gold Card ROM patching...

Not sure if this has been asked before, but my search didn't come up with anything specific, so here goes. The Gold Card and Super Gold Card, copy the current ROM image in the lower 48K and then 'modify or patch' it for use with these cards. Does anyone have any more detailed notes on exactly which ...

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