The wedge's @, @$, and @<command> read the error channel, list a directory,
and send DOS commands from direct mode, so the F-keys' @8$-style commands work.
BASIC has room for it only without the transcendental functions, which stay
?NOT IMPLEMENTED until BASIC evaluates functions at all.
A new option, ARNITECH_CONTROLLER, on in the mc64 configuration only.
IOINIT starts timer A with CIA #1's TOD on 50 Hz, the mc64's mains, and
if the Arnitech controller's signature "ARNI" is at $DE80, latches its
clock and copies its real time into the TOD, hours first and tenths
last, flipping bit 7 of an hour of 12 first, since the CIA flips it
back when 12 is written. Without the signature the TOD is left alone.
The Arnitech jump table at $FF00: "ARNI", version $01, two entries, and
JMPs from $FF06: $FF06 finds the first Card slot holding a Card of the
type in A (carry clear, the slot in A, its Card window's low byte in
X; carry set if none or no controller), $FF09 sets the TOD as IOINIT
does. $FF48-$FF80 stay clear. The code is in new files under
src/kernal/arnitech; other configurations build as before.
A copy of the c64 configuration with its own ID ($6D), the brand "MC64",
and BCD_SAFE_INTERRUPTS off, plus its Makefile targets
build/kernal_mc64.rom and build/basic_mc64.rom, made the same way as the
c64 ones. NOTICE says who modified the fork, when, and what changed.
chris