The Sinclair QL Forum

I wonder if the Aurora can be used to provide the ROM port?

Good point Marcel - I am sure that it might be possible to find right angle turned pin headers though, so the jist of the idea is there.

you can use those right angle pin headers on the underside, and surface solder the socket on the top of the board or displace it https://www.ebay.co.uk/itm/192214611566?hash=item2cc0e2366e:g:RyoAAOSw1~JZPeEe + https://www.ebay.co.uk/itm/143201813106?var=442134022620&hash=item21577e4272:g:ljMAAOS...

Well, I originally drew it, but then TF took Minerva over so technically I guess it's Tony's shout these days. Is he still about? Still going strong, yes. He even resuscitated his mailbox QL recently for me to look for the Hermes source codes, but alas no luck. They seem to be confined to Lau's vau...

although the ipc dissassembly I have has addresses against the dissassembly - so is also quite useful.

Ruptor wrote:

Pr0f wrote:I have checked with hed editor and the file from Derek is all 0's from the last code location on to the end of the 2K image.

Don't you see something in 07F1H?

you are right - 07 hex is there - I missed that.

The 8049 should be readable using 8049/8749 using the HiLo programmer. However there is an IPC project on GitHub I think, which has a binary file with it. I compared that with the one Derek put up on the thread - and for the most part it would seem to be the same source, but there is an additional b...

Brilliant cakes ! Happy Birthday Marcel

so looking at those stripped circuit boards - the chip under the ROM was a 13 Input NAND gage - so presumably used to do the finer address decoding for the SDA / SCL Using a 7430 (8 input NAND) would have been enough, SGC allows direct access through to $BF80-BFFF. Here's something I wrote a few ye...