The Sinclair QL Forum

Hi,

What sort of ROM software ard you thinking of adding to the Eprom Board?

I fear: Programs > 16/32/64k.

Converting over v2.35 / v2.38 (as applicable) 2 or all 4 of Psion if I can get 2 x 128k boards, with a 16k on the end if there's room (TK2 / Speedscreen). I don't mind if the rom has to be loaded in to ram if that is the only way a program would work.

It is not the size to programme, but the size of the Eprom, and some software will not load load rom. But I guess you know all this.

Yes I'll have to accept some will not work.

You can put any program in the Eprom, but not every program runs in the Eprom. Some are transferred to RAM via command and run there. Then the Eprom is ultimately nothing more than a data carrier, like mdv or flp.

Yes Ralf, I know and am okay with that. Am expecting most to do that, except the existing 16k roms.

Are there any tools to convert existing software to load from the EPROM - not sure if Jochen's Think and EPROM manager will do the trick?

RWAP wrote: Thu Jan 23, 2025 2:50 pmAre there any tools to convert existing software to load from the EPROM - not sure if Jochen's Think and EPROM manager will do the trick?

Yes, you can take both Jochen's program and RPM from Liberation Software and decide for both whether the program runs from Eprom or whether it is pushed into RAM. Both can be started via command.

There is also DIY Toolkit Custom kit that merged toolkits up to 32K in size.

I think an executable program like QUILL could be made ROMable by adding a ROM header with a jump to the start of the executable code.

All of the Psion applications are 50K to 64K in size, so could fit into a 27C512 EEPROM, which would occupy 4 x 16K QDOS ROM Slots.

The EPROM board would have to able to cope this this type of addressing.

I also have JMS EPROM Manager.