(RefInput * 16) MOD 1024 WHEN (P6) 0 OTHERWISE

(RefPos[-1] + Speed[-1]) MOD 1024 WHEN (P8 AND (Counter[-1] = 0)) RefPos[-1] WHEN (P8 AND (Counter[-1] <> 0)) 0 OTHERWISE

P6 WHEN (P6 >= P8) P8 OTHERWISE

Counter[-1] + 1 WHEN (CountEvt) Counter[-1] OTHERWISE

RefInput WHEN (P8 AND (RefInput < 512)) RefInput - 1024 WHEN (P8 AND (RefInput >= 512)) 1 OTHERWISE

SPM WHEN (P7) 0

1 WHEN (P9) 0 OTHERWISE

P7 WHEN (P7 >= P9) P9 OTHERWISE

SPM = 1

SMode = 0