SpreadNoteRange - spread out note range to full 00-7F

AB forum user ohwell asked in an AB forum thread for a script to remap the limited note range of his controller into the full note range used by Ruismaker Noir. 

So i made one 

# SpreadNoteRange - spread out a range of notes to full 00-7F range.
# Version v2 / 17.11.2018 -ki
#
# Used for converting the limited key range of an external controller
# or keyboard to full 128 notes supported by Ruismaker Noir.
#
# The script needs two input variables specifiying the lowest and highest
# note of the controller. See instructions below.
#
#     Left  label always outputs the incomming note in hexadecimal
#     Right label outputs transformed note in hexadecimal or a hyphen
#           if the incomming note is out of the scripted range
#
# Installation
# =============
# You can find out the hexadecimal values of the lowest and highest input  
# note by pressing „Install Rules“ to start the script and then pressing
# the keys with the lowest and highest note on the controller one after
# the other - note down their hex value shown in the left label.
#
# Then edit the following lines with the values you aquired and press
# „Install Rules“ again to update/restart the script.
# It is also advised that you then use the Au hosts preset mechanism to save
# the script into a „SpreadNoteRange“ preset.
# Saving a session will also save the script and when reloading, it is
# installed and run automatically.

IF LOAD
 ASS J0 = 24 #        minNote     Lowest  incomming note in hexadecimal
 ASS J1 = 30 #        maxNote     Highest incomming note in hexadecimal
END




# // ========== Do not modify below this line if you dont know what you are doing ====
#
# Author:
#   -ki  https://forum.audiob.us/profile/_ki
#
# Versions:
#   v2 / 17.11.2018   Better range spreading by using fixed point math and rounding
#   v1 / 17.11.2018   Inital version


9X XX 00 = 8X #        // Remap NoteOn with vel=0 to NoteOff


#                      // Display incomming NoteOn in hexadecimal on left label
IF MT == 90 #          if (NoteOn) {
 SET LB0 M1 #            show(LeftLabel, inputNote)
END #                  }


IF MT <= 90 #          if (NoteOn or NoteOff) {
 ASS K1 = FFFF #         outputNote = OutOfRange

 #                       // Transform NoteOn AND NoteOff if in the given range
 IF M1 >= J0 #           if (inputNote >= minNotej {
   IF M1 <= J1 #             if (inputNote <= maxNote) {
     MAT J2 = J1 - J0 #         notesInRange = maxNote - minNote
     MAT J3 = 7F00 / J2 #       scaleFactor = 127 * 256 / notesInRange
     MAT I0 = M1 - J0 #         deltaNote = inputNote - minNote
     MAT I1 = I0 * J3 #         scaledDelta = deltaNote * scaleFactor
     MAT I2 = I1 + FF #         roundedScakedDelta = scaledDelta+ 255
     MAT K1 = I2 / 100 #        outputNote = roundedScaledDelta / 256
     SND M0 K1 M2 #             send(inputCmd, outputNote, inputVelocity)
   END #                     }
 END #                   }


 #                       // On NoteOn display either a hypen or the output note
 IF MT == 90 #           if (NoteOn) {
   IF K1 == FFFF #           if (outputNote == OutOfRange) {
     SET LB1 S- #                show(RightLabel, „-„)
   END #                     }
   IF K1 != FFFF #           if (outputNote != OutOfRange) {
     SET LB1 K1 #                show(RightLabel, outputNote)
   END #                     }
 END #                    }

 XX = XX +B #           // Block the initially received NoteOn and NoteOff

END #                  }