alias Weather d0 # Weather Station
alias Readout d1 # Kit (Console)
alias Announcer d2 # Kit (Speaker)
alias Siren d3 # Kit (Speaker)

alias StormMode r0
alias Minutes r1
alias SirenOn r2

s Announcer Mode 18 # "StormIncoming"
s Siren Mode 10 # "Alarm8"

start:
yield
l StormMode Weather Mode # check weather
s Announcer On 0 # reset Announcer
beq StormMode 1 countdown # countdown if incoming
j start # else return to start

countdown:
yield
l StormMode Weather Mode # check weather
s Announcer On 1 # announce storm
# get countdown value
l Minutes Weather NextWeatherEventTime
div Minutes Minutes 60 # convert to minutes
trunc Minutes Minutes # drop decimals
s Readout Setting Minutes # send to display
bgt Minutes 2 countdown # got more than 3m?
sgt SirenOn Minutes 0 # got more than 60s?
s Siren On SirenOn # start siren if 1<minutes<3
beq StormMode 1 countdown # still waiting? go back
j start # reset and start waiting again