The goal is to insert device drivers in between.

That makes it easier to write drivers that can be xcompiled.

Also, made LIST properly handle full 64-chars lines not ending with
a null or CR. Previously, such a line would be accompanied by its
following line, duplicating that line's output.

This allows us to make DO..LOOP more compact.

This was caused by the removal of signed-ness a long while ago.

Lines edited with the Block editor end with 0xd and (print) spits
spurious CR when printing those lines.

Also, properly initialize ACC in BROWSE.

And use them in all places they make sense.

With all this recent movements, we had a bit of a fragmentation
issue.

This allows us to get rid of the (parse*) indirection.

Not worth the complexity and space.

2 was overkill

I don't believe this, one hour of my life I'll never get back.

This would allow things like temporary giving control to the *CL
line on the TRS-80. For example... A very far fetched example. Not
at all the only *raison d'etre* of the layer...

Also, add word "C!+" and fix PSP leak in FILL.

XPACKed source needing to be kept in bootstrap bin didn't make
much sense. With the removal of stripfc, it makes more sense to keep
the compiled form of stage 1 in repository as a bootstrap binary.

Also, rename it to forth.bin.