In <[EMAIL PROTECTED]>, on 07/17/2005
at 10:40 AM, Bill Fairchild <[EMAIL PROTECTED]> said:
>There is at least one case where LH Rx,=H'5' is preferable to LA
>Rx,5. The LA instruction can load a maximum value of 4095 into the
>register, but a half word could load a much larger number into the
>register.
5 is always less than 4095.
Note for new code loading large values: LHI is available on any
zSeries processor.
>If you found it necessary to fix a problem by increasing the value
>being loaded into the register to a number larger than 4095 but
>could not easily change the source code and reassemble, you could
>possibly patch the half word in the literal pool
That's high risk behavior.
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
ISO position; see <http://patriot.net/~shmuel/resume/brief.html>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
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