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Article #152Re: Baseless code
From: Miklos Szigetvari
Date: Thu, 28 Sep 2006 14:21
Date: Thu, 28 Sep 2006 14:21
54 lines
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3784 bytes
Edward Jaffe wrote: > Miklos Szigetvari wrote: > >> I have just converted a large assembler application to baseless code: >> - brach relative instructions >> - data completly separated from instruction part of the code >> - SYSSTATE ARCHLVL=2 compiled >> >> For my big surprise in our z/800 machine the firts test shows two times >> higher CPU consumtion for the baseless code as in the original code > > > Hard to believe. I've done many similar conversions and have never > experienced anything like this. > > Any chance you used instructions with long displacements? Though > supported, they run extremely slowly on a z800 machine. > I'm just thinking about this. ( I run out of some work area BASE , and the option was to use long displacements) But at least Ed pointed out a hardware difference. Sorry again, in my case it was a wrong DEBUG flag in the baseless code > -- > Edward E Jaffe > Phoenix Software International, Inc > 5200 W Century Blvd, Suite 800 > Los Angeles, CA 90045 > 310-338-0400 x318 > edjaffe@phoenixsoftware.com > http://www.phoenixsoftware.com/ > -- Mit freundlichen GrΓΌΓen / Best regards Miklos Szigetvari ISIS Information Systems GmbH Alter Wienerweg 12 2344 Maria Enzersdorf Austria --------------------------------------------------------------- This e-mail is only intended for the recipient and not legally binding. Unauthorised use, publication, reproduction or disclosure of the content of this e-mail is not permitted. This email has been checked for known viruses, but ISIS accepts no responsibility for malicious or inappropriate content. ---------------------------------------------------------------
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From: Miklos Szigetvari <miklos.szigetvari@isis-papyrus.com>
Newsgroups: bit.listserv.asm370
Subject: Re: Baseless code
Date: Thu, 28 Sep 2006 16:21:04 +0200
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