Wednesday, July 13, 2022

TI-58/TI-59 Week: Adding Machine

TI-58/TI-59 Week:  Adding Machine


Introduction


Turn your TI-58 and TI-59 into an adding machine, which uses register R00 as the accumulator. 


The soft keys do the following functions:


[ A ]:  Clear the accumulator

[ B ]:  Add [ + ]

[ +/- ] B:  Subtract [ - ]

[ C ]:  Multiply [ × ]

[ 1/x  ] [ C ]:  Divide [ ÷ ]

[ D ]:  Add % 

[ E ]:  Recall the accumulator


Program Listing


000 76 LBL

001 11 A

002 00 0

003 42 STO

004 00 00

005 92 INV SBR (RTN)


006 76 LBL

007 12 B

008 44 SUM

009 00 00

010 61 GTO

011 15 E


012 76 LBL

013 13 C

014 49 Prd

015 00 00

016 61 GTO

017 15 E


018 76 LBL

019 14 D

020 55 ÷

021 01 1

022 00 0

023 00 0

024 65 ×

025 43 RCL

026 00 00

027 95 =

028 44 SUM

029 00 00

030 61 GTO

031 15 E


032 76 LBL

033 15 E

034 43 RCL

035 00 00

036 92 INV SBR (RTN)


Example


Clear the Register:  [ A ]

Add 15:  15 [ B ]   (Result:  15)

Add 30:  30 [ B ]   (Result:  45)

Triple:  3 [ C ]   (Result:  135)

20% Discount:  20 [ +/- ] [ D ]  (Result:  108)

Halve:  2 [ 1/x ] [ C ] (Result:  54)

Subtract 30:  30 [ +/- ] [ B ]  (Result:  24)

Add 50%:  50 [ D ]  (Result: 36)

Recall the register:  [ E ]  (Result:  36)


Enjoy the accumulator.  


Eddie


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