Something that works

I've written the editor now, which means that something can be downloaded that actually works, rather than just displays things.

I've only tried it on Fuse and CSpect emulators, but it should run on anything.

So, you want this file https://github.com/paulscottrobson/m8/blob/master/system/test.sna which is the test.sna file in the master system directory in the github.

If you download this file which is a standard 48k Spectrum SNA file and run it it should display a screen of what looks like random data but is actually part of the boot code for the system (with all the comments removed !). It will flash for a few seconds a bit like the tape loading but more erratically (this is compiling the boot code) and the the screen will clear and display something like this, which is part of the boot code dumped into the edit buffer so there's something to edit.

(You don't have to do this boot compile every time, you can just save it as a .SNA file)

Shift and keys 1-4 recolours words (sadly not the colours shown on the Speccy Keyboard ....) , 5 6 7 8 move the cursor about, 0 backspaces, the shift keys roughly do the same thing (I use 6 bit ASCII with lower case text, so you can't do capitals), Enter does a CR, and shift and Enter exits (it displays the debug information on the bottom line).

It's useable at 3.5Mhz though the screen displaying is a little bit sluggish, not unsurprisingly, but it works fine. In a Next, running at 7 or 14 Mhz, it's much zippier.

To get a working system there isn't that much left to actually do, though there is plenty of stuff to add.