Oppolzer - Informatik / Blog


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ASSEMBLER-L - Sortierung von Literalen

Subject:

Re: LARL vs. Literal Alignment

From:

Bernd Oppolzer <bernd.oppolzer@T-ONLINE.DE>

Reply-To:

IBM Mainframe Assembler List <ASSEMBLER-LIST@LISTSERV.UGA.EDU>

Date:

2010.08.23 11:30:16


No, only one.

All doubleword aligned literals are placed in the first part of the literal
pool, then the fullwords at 4 byte boundaries, then the halfwords at two byte
boundaries, then the odd strings with relative addressing requirements on even
addresses, with maximum one byte padding.

Kind regards

Bernd



E.J. schrieb:
> Bernd Oppolzer wrote:
>> I believe that literals could be sorted by alignment requirement
>> instead of length, this way minimizing the needed padding bytes.
>
> Using this scheme, one byte literals requiring doubleword alignment will
> require seven padding bytes each. It would be better if literals without
> alignment requirements could be somehow placed into these voids.
>

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