The Sinclair QL Forum

I've just took a peek at old 41256 dram datasheet. Setup times are narrow enough to enable intelieveing 2 8-bit banks, even on word level. Which means that one could use existing circuitry on PCB to transfer data between CPU socket VIDEO DRAM and ULA1 socket 16-bits at the time, provided that they ...

Just wanted to say that I hope that everyone in, or who has friends and/or relatives in, areas affected by the current floodings, hears good news. Hoping everyone is ok. The images on TV are horrendous. Stay safe everyone. I'm fine, thanks. There have been some floods in the South-Eastern part of H...

bwinkel67 wrote:But for JSU in F1 mode you get the full 256 lines, no?

Yes, character height is 10 pixels in F1 mode and 8 in F2.
Still wondering what the timings are in F1 mode, though. No hardware here to check...

but the Spectrum basic is a bit of a mess Spectrum Basic is ok, as long as it using the common commands, as described in the manual. But Spectrum Basic Optimized for Speed was incomprehensible for me. I simply do not have the time to learn all Spectrum tips and tricks. (After a lot of searches on t...

I do want to look at Github to see if its easy to modify to work with the JSU character set...due to NTSC, in TV mode (needed for composite), the character heights are 8 not 10 and QED (v1) assumes 10 so the screen screws up when it scrolls up as the cursor moves beyond the bottom of the screen (i....

Interestingly, on both systems the bottom (or top, since it grows downwards) of the SV stack is at $28480, leaving $300 (or 768) bytes room above the system variables which end at $28180. (On QDOS, you might even have some more since it uses less space for system variables, which end at $2814E). Ye...

My biggest concern about QDOS/Minerva, is if It might over fill the supervisor stack. I'm not sure if SMSQ/E has a bigger supervisor stack than QDOS. It has. Significantly. You are supposed to use not more than 64 bytes on the QDOS SV stack vs. 512 bytes on SMSQ/E. Interestingly, on both systems th...

vanpeebles wrote:Happy Birthday Jan!!

Thanks!

Thanks for the update...I love that editor. I'm using version 1.0 and it's perfect for what I need it for (editing C source code on an unexpdanded QL). Is version 2 much bigger in footprint to version 1?. It seems similar to the ED editor on the Amiga I'm discovering (though the other way around si...

The patched version is now available here. Great! Thanks Jan for the QED support. (Another little comment. When auto word wrapping is enabled in QED, if you type text and you reach the right margin of the text, QED will perform an automatic newline and place the partially complete word on a new lin...