The Sinclair QL Forum

A slightly larger FPGA - to enable a separate bus for video memory so large screen sizes do not slow the entire machine Already routed and tested as part of the Qzero. Whether slightly larger or several 100% larger just a matter of target price. Separate PS/2 keyboard and mouse sockets - current do...

Ooh, please add that to the list...a combo extension card that can also be run standalone would be neat. Then everyone who wants either "extension card" or "standalone" would check "combo", losing any indication which actual usage is preferred. Every combo would be a c...

In short, a two-in-one board ("expansion card" and "stand alone" unit) and a second "docking station" type board to transform the new hardware into new QL motherboard that can fit inside QL box. (In the end we would have a three-in-one solution!). A "docking stati...

I have voted for the "QL extension slot plugin" and "QL mainboard replacement" options, but ..., could there be an option that combines these two? (In the style of "Turbo Chameleon 64" (https://www.vesalia.de/e_chameleon.htm)) A board that can operate as a "stand-...

For me, having a GoldCard type board is the most appealing. You want better performance and graphics, plug your new board. You want to go back to the BareBonesQL experience, just remove the board. However, if a plugin type board gets too limited by the QL interface for ay reason, then this is where...

Ruptor wrote:I don't understand the need for hardware when the RPi and even the zero exist.

For some mysterious reason, people here simply like hardware. Hardware has 11550 posts on this forum and emulation only 1618 posts.

As I use the fx68k core with the standard 68k DTACK handling it would be quite trivial to adapt it to DDR and use SDRAM for video. That, or even better vice-versa, makes sense if you plan to add highcolour - even if beating the Q68 in terms of speed is not your goal. By the way, I don't think the Q...

I already wrote that it‘s due to the latency. But in the context of cycle accuracy, which is not relevant for the TG68K.C and others. So if DDR3 was easy to use apart from the ARM CPU, it still makes me wonder why the SDR module isn't saved. But IIRC there is a core that uses it to store a CD image...

Case in point, the de10nano can run a decent Linux desktop without the SDRAM extension board, so I‘m sure it would work if I wanted. That one is using the hardwired cores specifically designed for the chip. I have no time for a closer look, but I'm sure there's a good reason why all Mister projects...

The type of SDRAM used for 68K cores is the same for Mister and Q68, so where should the extra performance come from, especially in highcolour? I don't know how much faster a TG68K.C core for the Mister could be clocked while decently tied to SRDAM, but I doubt it is much, with conservative timings...