Hi,

Just recompiled `qdos-gcc' on raspberry, but I do miss something on the way.



On my old x68 it works as usual.

Any ideas?
Many thanks
Tomas

The 6502 runs at 2MHz when accessing ROM or RAM, including no slowdown when accessing screen RAM. The Amstrad CPC uses a 4MHz Z80 and was developed after the Beeb. The designers put a lot of effort into getting the most out of it. So it’s fairly fast at printing to the screen. And it’s BASIC is fas...

Hi,

Anyone has had experience with?

There are ready made available, but possibly could be produced DIY as well.
https://tapeline.info/v2/endless-loop-tapes.html

I was thinking of what use they could be on ZX/Z81?

Tomas

Thanks Dilwyn for pointing this out, it helps. Meanwhile I have walked the whole game through, and possibly fixed all my typos, and some parts that would normally go to the book errata (went to EDIT box above). Good exercise though, I now have a better idea how simple adventure works. Hey, I realise...

Yes, I agree. If it were reel to reel media, tape does not wear that much, in my opinion. The only wear it incurs is that sliding over the heads. EDIT rephrasing for clarity, need help to get better wording... Microdrive's tape is spooled on a single reel. With tape coming in the outer bigger diamet...

Wonder if I should put some sort of feet in the middle to help it out. The UK version had 6 feet, right? Hey, sharp eye observation! Only UK early models, latter Iss#6 and Samsung makes, all 4 feeters. Mine is UK and 4 feet as well, I have put two small plastic feet, self adhesive, IKEA style, they...

Hi, I have typed up this simple adventure code from one of the e-books given here. `Write your own adventure programmes', 1980's - Usborne publisher. As it was targeted at ZX 16K, I have restructured the prog slightly to fit SuperBASIC style of coding. Added `Quit', and changed `Carrying?' to `List'...

Hi, Completed stipple patterns, now thinking about relative versus absolute address pointers. My code works with relative so far, e.g. this just stores DOT element, x,y - coord, c - colour. 210 REMark off - relative offsets, gfx - graphics memory store, top - last offset, ptr - address pointer 220 o...

Hi, Tobias, Per, Thanks for encouragement and very helpful ideas to consider. Re pattern block fill, I can do this so far, ; middle / left / right words - MODE 8 / 4 pixels per word andi.w #$3333,b8_mw(a4) ;mw pattern andi.w #$3333,b8_lw(a4) ;lw pattern andi.w #$3333,b8_rw(a4) ;rw pattern The above ...

the elements may be viewed as piled, one on top of another, some sort of list or an array may be needed in basic code to reference them For a start, I can think of this simple data abstraction. Keeping array of pointers allows undo, redo, `bring to top', operations to be easily implemented. I leave...