At the SubX level we have to put up with null-terminated kernel strings
for commandline args. But so far we haven't done much with them. Rather
than try to support them we'll just convert them transparently to standard
length-prefixed strings.
In the process I realized that it's not quite right to treat the combination
of argc and argv as an array of kernel strings. Argc counts the number
of elements, whereas the length of an array is usually denominated in bytes.
Signed and unsigned don't quite capture the essence of what the different
combinations of x86 flags are doing for SubX. The crucial distinction is
that one set of comparison operators is for integers and the second is
for addresses.
Rename a few scripts to be more consistent.
I'm also starting to feel the urge to bud off `subx run` into its own program,
say tools/emulate_x86. It doesn't really rely on the SubX notation at all.
And then I could rename `subx translate` to `translate_subx_bootstrap`.
Only problem: the commands in the Readme get verbose. But the Readme is
gonna need surgery soon anyway to put translate_mu front and center.
Kartik Agaram