compile-fc-batt: allow possible third field in source lines Battery tables maintained in the fc-battery-conf repository will now have a third field added, defining thresholds for the battery bars icon, and there will be a new utility to compile them into the new /etc/batterytab2 file read by the FC Tourmaline version of our FCHG driver. For backward compatibility with the original Magnetite version of FCHG, compile-fc-batt remains the tool for compiling the original /etc/batterytab file format, and it needs to ignore the newly added third field in battery table sources.

/*
 * In some error cases in our loadagent code we have no better course
 * of action available than to halt in a tight loop.  We define _exit()
 * to do the latter.  We have defined some codes for the argument value
 * that goes into R0; if you manage to hook up JTAG and get it to work,
 * you might be able to see what went wrong.
 */

#define	HALTCODE_MAINEXITED	0x40
#define	HALTCODE_INVALIDUART	0x41
#define	HALTCODE_BOOTROMVER	0x42