the input character string has only digits.
--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
From: IBM Mainframe Assembler List [ASSEMBLER-LIST@LISTSERV.UGA.EDU] on behalf
of Gerhard adam [gada...@charter.net]
Sent: Thursday, June 4, 20
There is no such thing as a sign before the value is packed or
converted to binary.
Since all numbers have a zone field of X’F’ there can be no discussion about a
sign since it is not part of the number
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On Thu, Jun
Even though it may not happen often the EQU can point to an odd address
and cause the label to be referenced when it is filled with binary zeroes (S0C1)
The use of 0H always forces boundary alignment for instructions
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MVC does not modify registers, so there is no way to get data into or out of
registers.
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On Dec 14, 2015, at 10:42 AM, "David S." wrote:
>> Why do you use LM and STM to load the fields in to registers
>> and then out to memory again, rather than just
Never mind, I realize I misunderstood the question. Apologies.
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> On Dec 14, 2015, at 10:49 AM, Gerhard Adam <gada...@charter.net> wrote:
>
> MVC does not modify registers, so there is no way to get data into or out of
> registers.
>
> Sent from my i
Presumably there are no problems, since that usually creates sufficient
incentive to solve them. So the question isn't the justification to stay
below the line, but rather what is the requirement that it be above the
line?
If there is no requirement, then it's purely aesthetics.
Adam
With R0, R1, R13, R14, and R15 already unavailable, and several more tied
up
with critical control blocks, the number of available registers is already
limited. Instruction base registers exacerbate the problem.
There is no reason to use base registers for branching, so the only concern
would be