prom_reboot − reboot system as indicated by bootmode

#include <prom/entrypt.h>
prom_reboot()

reboots the system as indicated by the prom environment variable
"bootmode".  Unlike
prom_reboot will not perform warm starts if bootmode is ’w’, but
instead forces a cold start.
prom_reset(2spp), prom_restart(2spp), prom_reinit(2spp), prom_autoboot(2spp)