I brought it down from the loft to give it a check-out before the 40th anniversary in March, plugged it in and switched it on without the RAM pack and it worked for a few seconds and then the output signal disappeared. Swapping the vLA81 ULA replacement out and putting the original ULA at least got ...

I'm afraid I don't know. I've never tried using the emulator on any platform.

It wouldn't really help me in this case as it wouldn't be able to read Spectre partitions or use the GCR hardware.

Thanks. I know that it has to page the two halves of the ROMs as the ROMs are 128KB but there's only 64KB visible at any one time. I'm guessing that it must make a workable copy in RAM.

I wonder if any of you know whether it's the Spectre GCR application or the emulated Mac produces the *BOOP* when you start the emulator? I'm yet again trying to get Spectre GCR to work on my TT and it would be useful to know if the Mac ROM code is actually starting or not. The symptoms are that whe...

Ps: for UK shops they recommend that you clearly specify on the invoice that your products are made in UK The problem here is that the parts which make up the Exxos equipment aren't made in the UK, they're sourced from around the World, and there are feindishly complex rules about how much value ha...

Or they're manufactured by MT.

Have you been testing the floppy with the UltraSATAN connected? If so then disconnect it and try again. I had similar issues on my machine with the TF536. The UltraSATAN's design is a bit iffy and pulls way too much current on the data lines, which can upset the DMA chip. The issue got worse over ti...

The alternative to testing the whether the address is below the end of the cartridge port address range is to use a counter and test if that's less than the total, e.g.

Yes, lines 8 & 9 should be: