Since the initialization is performed only once,
how much time is this likely to take?
If each instruction took 1 microsecond, that's a total
of 104 microseconds.
Could you measure it?
On 2025-11-30 14:34, Brian Westerman wrote:
Hi,
I have a program in which I have 104 PL4 fields tht are used for
various counters, and when the program starts it spends a significant
amount of time initializing all of those fields to zero.
we used to use ZAP field,=PL4'0' and then I found an entry (on the web)
that said it would be "slightly" faster to use MVC, so I changed it to
104 MVC filed,=PL4'0'.
Is there not a quicker way to do this? I know that I can ripple the
first byte of a field for up to 256 bytes with a single instruction,
but can that same type of thing be done with a 4 byte packed field?
If not, is there a quicker way to initialize these fields without doing
each one separately?
Thanks for any tips.
Brian
