At 06:37 -0700 on 08/07/2013, Duffy Nightingale wrote about Re:
Concatanate Bits Instruction?:
Hi All,
Thanks much to everyone who responded for all the hints and tips.
Someday I hope to be of use to someone on this thread! Andreas, I
think you caught a mistake in my "specs". It is
fy
-Original Message-
From: IBM Mainframe Assembler List [mailto:ASSEMBLER-LIST@LISTSERV.UGA.EDU] On
Behalf Of robin
Sent: Tuesday, August 06, 2013 12:55 AM
To: ASSEMBLER-LIST@LISTSERV.UGA.EDU
Subject: Re: Concatanate Bits Instruction?
Seems unduly and unnecessarily complicated to me.
I
I agree with the KISS method. If it's concatenate then you can do it without
the complication. Easily modified to run on OS/360. No need for the complicated
moves and the extra register for shifting. Instead just O directly from storage
to merge bits and save it back to storage. Here's what I wo
Seems unduly and unnecessarily complicated to me.
I'm a believer in the KISS principle.
From: "Andreas F. Geissbuehler"
Sent: Tuesday, 6 August 2013 12:30 AM
Duffy,
Assuing you meant "concatenate" as in appending 57 bits to the end of a
bitstring of say 395 bits which when done will have grown
Duffy Nightingale wrote:
Working on a project that requires me to build a long bit string in
storage - initialized to binary 0’s. Have a need to keep concatenating
bits to this string as the process continues. The len of the bit strings
to add are 4, 7, 10 and possibly others. I came up with th
From: "Robert A. Rosenberg"
Sent: Monday, 5 August 2013 1:49 PM
What you are describing is not concatenation - It is altering bits in
the string. As you concatenate you need to increase the string length
and add the new bits to the end.
From his description, the work area is already defined,
th to R14 after the move to point to the next field and forget about the SR.
Jon Perryman
>
> From: Robert A. Rosenberg
>
>At 21:46 -0700 on 08/03/2013, Duffy Nightingale wrote about
>Concatanate Bits Instruction?:
>
>>Hi All,
>>
>
On 4 August 2013 13:05, robin wrote:
> Then double shift left by k bits.
> Then do an OI using EX to put in those k bits.
> Then double left shift again, this time by 8 bits and OI using EX.
> Continue thus if there are more bits
>
I've done something similar with an 8-bit mask using EX and
At 21:46 -0700 on 08/03/2013, Duffy Nightingale wrote about
Concatanate Bits Instruction?:
Hi All,
Working on a project that requires me to build a long bit string in
storage - initialized to binary 0¹s. Have a need to keep
concatenating bits to this string as the process continues. The len
From: "Duffy Nightingale"
Sent: Sunday, 4 August 2013 2:46 PM
Working on a project that requires me to build a long bit string in storage -
initialized to binary 0’s. Have a need
to keep concatenating bits to this string as the process continues. The len of
the bit strings to add are 4, 7,
Hi All,
Working on a project that requires me to build a long bit string in storage -
initialized to binary 0’s. Have a need to keep concatenating bits to this
string as the process continues. The len of the bit strings to add are 4, 7,
10 and possibly others. I came up with the idea of lini
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