the machine, rather than simply returning to the assembly NMI handler.
Previously, the assembly handler would simply jump back to begin:, which
would frob the stack, and re-clear the BSS. However, this is not sufficient,
as there may be state in initialized data that must be restored. Thus,
the only reasonable solution is to re-load the boot block.
by me. This driver should only be invoked when there are no other
suitable console devices present in the system. This situation currently
exists on the 425e, for which we do not have a frame buffer driver,
and who's PROM does not map the second APCI UART to select code 9,
like is done on the 4{00,25,33}{t,s}.
code provided by Mike Smith. While I'm here, convert this file to use
macros from <machine/asm.h> rather than making assumptions about how
C labels are handled.
Some of the stuff (e.g., rarpd, bootpd, dhcpd etc., libsa) still will
only support Ethernet. Tcpdump itself should be ok, but libpcap needs
lot of work.
For the detailed change history, look at the commit log entries for
the is-newarp branch.