TI Conditionals & Spaghetti Code

[Pierre]

Sometimes it can be useful to optimize the execution time of a somewhat long program to use direct addressing.
But it is not imperative and we should not make it an obsession.
The step count must also be considered.

----------Example #1 ----------

Code:


001 LBL
002 A
.../...
051 GTO
052 A
.../...
067 GTO
068 A

==> 6 steps

----------Example #2 ----------

Code:


001 LBL
002 A
.../...
051 GTO
052 00
053 03
.../...
068 GTO
069 00
070 03

==> 8 steps

Equivalent response time because label analysis starts at step 001

You can also write :
----------Example #3 ----------

Code:


001 LBL
002 A
.../...
051 RST
.../...
066 RST

==> 4 steps

RST is even faster than GTO
Works on TI-58/58C/59
But be careful on some calculators, RST returns to step 000 and execution stops.