inplast_tmp = inpwork_last
inpcur_tmp = inpwork

inpwork_last = inpcur_tmp
inpwork_down = inpcur_tmp & ~inplast_tmp
inpwork_no_rept_up = (~inpcur_tmp & inplast_tmp) & inpwork_repeat

for i in 0...30-1
  inpwork_history[i] = inpwork_history[i+1] # Move the history along

inpwork_history_inv[29] = inpwork_last # Put current input at end of the history
historical_held = $FFFF
for i in 0...30
  historical_held &= inpwork_history[i]

# historical_held now has bits for all keys held 30 frames or longer

# inpwork_repeat has all keys held 30 frames or longer IN ADDITION TO all buttons just pressed
inpwork_repeat = historical_held | inpwork_down