# Copyright (c) 2017, Lawrence Livermore National Security, LLC.

# Produced at the Lawrence Livermore National Laboratory

# Written by Geoff Cleary <gcleary@llnl.gov>

# LLNL-CODE-734258

#

# All rights reserved.

# This file is part of STK Address Converter. For details, see

# https://github.com/LLNL/STKAddressConverter. Licensed under the

# Apache License, Version 2.0 (the “Licensee”); you may not use

# this file except in compliance with the License. You may

# obtain a copy of the License at:

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing,

# software distributed under the License is distributed on an

# “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,

# either express or implied. See the License for the specific

# language governing permissions and limitations under the license.

inputs: library, rail, column, side, row

sanity checks:

library >= 1

1 <= rail <= 4

-2 <= column <= 2 and column != 0

side == 1

1 <= row <= 4

calculate ACSLS LSM

( (4 * (library - 1)) + rail ) - 1

calculate ACSLS drive ID

2 dimensional array of ACSLS drive IDs:

2 1 -1 -2

+--+--+--+--+

0 |12| 8| 4| 0| 1

+--+--+--+--+

1 |13| 9| 5| 1| 2

+--+--+--+--+

2 |14|10| 6| 2| 3

+--+--+--+--+

3 |15|11| 7| 3| 4

+--+--+--+--+

0 1 2 3

we'll use the column and row to index into the above array.

SL8500 row to array row is easy -> subtract 1

SL8500 column to array column:

multiply by -1

SL8500 column numbers: -2 -1 1 2

array column numbers: 0 1 2 3

if negative, add 2

if positive, add 1

SL8500 column numbers: 0 1 2 3

arrau column numbers: 0 1 2 3

index into array using array row,column that we've calcuated to retrieve ACSLS drive ID

outputs: LSM, drive ID, (return error)