Editor up and running

Virtually all the code I wrote before worked straight off ; the main thing was changing the dictionary selector word from mwords to words.

So the new version is now useable. It can be downloaded from here https://github.com/paulscottrobson/mnext/tree/master/release

It runs on cspect.exe (it might run on Zesarux, I just haven't tried it yet !) ; to make it run start the emulator with the -zxnext and load the .sna file in using F2. It should briefly display booting (at this point it is compiling the bootstrap code) and then display an editable area.

You can run it with the SNA file as a parameter to cspect.exe but if you do this boot.img has to be in the same directory.

This contains two files ; a .sna file "bootloader.sna". It loads the file boot.img into $8000-$BFFF and pages 32..95 of $C000-$FFFF ; it has no other purpose (except it can save it as well :))

I also did some speed testing of the cross page calling mechanism. I put two nested loops, one of 64 and one of 50000, so about 3.2 million in total and ran it first calling a routine on the same page, and then calling it on a different page ; all the code was fudged into the page area $C000-$FFFF and to different pages.

So without page switching it took 19s ; with it, it took 1'03s ; which I'm quite pleased with, I though it it would be much much slower.

This is running at 14Mhz, of course.