In <[email protected]>, on
06/24/2013
at 10:23 AM, Ron Thomas <[email protected]> said:
>can some one pls let me know what this assembler code does?
More information would help. What are the definitions of I2REC, ISTAT,
IREC and SDLET? What is the generated code on the left side of the
listing?
>TM I2REC+ISTAT-IREC,SDLET
I2REC+ISTAT-IREC should be a relocatable expression within range of an
active USING and SDLET should be a nonrelocatable symbol defined in
the range 0-255. The TM will set the condition code depending on the
results of testing the addressed byte with the mask value:
O if all bits specified by the mask are one
Z if noe bits specified by the mask are one
M if some, but not all, of the bits specified by the mask are one.
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
Atid/2 <http://patriot.net/~shmuel>
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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