Hi,
there is no such option;
this is not possible, because with ASSEMBLER, the programmer has full
control about where he or she puts the information elements,
be it static data or code. There is no magic engine like the optimizer
with compilers which can do anything about that.
This said:
I had a project in 2021 with a large customer which had very old
ASSEMBLER programs from the 1980s, which had heavy SIIS problems
(store into instruction stream) which had to be resolved. I found out
that some of them can easily be resolved by the use of clever macros
which separate the static data from the code (by putting them in a
different CSECT or DSECT). The details are too complicated to discuss here,
but in the end, the changes to the code were minimal. And in the end, we
achieved our project goals in time and budget.
HTH, kind regards
Bernd
Am 08.12.2023 um 20:29 schrieb Ituriel do Neto:
Hello everyone,
Recently i have seen some discussions related to assembler performance to use
the L1 cache of the processor better and not mixing instructions and data.
Can you enlighten me which assembler option can be used for this purpose?
Thanks in advance
Best Regards
Ituriel do Nascimento Neto
z/OS System Programmer
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