MaxCoderz

This screenshot shows a feature borrowed from the BBC Micro: copy key editing. By pressing a cursor key when entering a line of code, the cursor splits into two - a read cursor and a write cursor. The write cursor remains on the end of the line you were editing (a solid block), but the read cursor ...

Would it be possible to make a TI-Basic style menu interface, so instead of there only being a virtual keyboard, you get a PRGM menu with Basic commands?

Yay for loose internal connections killing the calc... Not fun stuff.

9D95 is used for whatever variable is located there. It could be Ans, it could be a program, etc. If you move a program to 9D95, it will stay there until it's deleted or another program gets moved to 9D95. If you're using an app, and need memory at a specific location, I strongly recommend using a t...

Here's a possibly useful (and mostly unused) romcall! DelVar3DC (bcall $4360) hl = insertion location, bc = number of bytes to 'insert' Updates VAT entries as if insertmem was called, but does not insert memory Not sure if it does negative values as well, I think it might. This means you can use the...

They do not depend on a variable being located at 9D95. Everything located at 9D95 and after will be pushed forward in RAM.

edit: not completely sure about this post anymore...

I think you need to be able to identify BBC basic programs as separate, then make a keyhook to execute them from the PRGM menu directly.

This BBC basic project looks awesome! How does the performance compare with TI-Basic?

Venus doesn't do it that way, it instead uses a fast swapping algorithm to swap data, then it calls the undocumented _delmemupdate.

TIOS lets you use numbers in program names.

So then, allocate 1024+256 bytes, then have the Update routine just move the data, or should it just recalculate the data?

You need 1k of contiguous memory? Then you'll have to make an appvar. The way shells move memory around varies. There's the Ashell/SOS method, the Ion/MirageOS method, and the Venus/CrunchyOS method. Ashell/SOS just swapped memory directly, so you have no clue if anything outside the program is vali...

Is using IXH and IXL worth the huge overhead? I haven't timed it, but is pushing and popping other registers faster?

Will this thing ever support RAM bankswitching on the 84+ or 83+SE?

yep, it was. The programmer used inc (hl) at one point instead of inc hl.

Halving the horizontal resolution is what they did in Doom (if you selected Low Quality Mode), also Doom on the GBA.