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| From | compilers@is-not-my.name |
| Newsgroups | comp.compilers |
| Subject | Re: IBM mainframe compilers produce object code or invoke assembler? |
| Date | Wed, 27 Apr 2011 21:19:21 -0000 |
| Organization | Compilers Central |
| Lines | 12 |
| Sender | news@iecc.com |
| Approved | comp.compilers@iecc.com |
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| NNTP-Posting-Date | Wed, 27 Apr 2011 21:44:46 +0000 (UTC) |
| Keywords | assembler, question, comment |
| Posted-Date | 27 Apr 2011 17:44:46 EDT |
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Does anyone happen to know if the traditional IBM language products like COBOL, PL/I, FORTRAN etc. invoke the assembler internally to produce object code, or if they produce object code directly? If they produce object code directly, what is the reason that approach was chosen instead of invoking the assembler? What are the benefits and disadvantages of the possible approaches? It seems to me a little risky to generate object code since presumably the assembler will always be updated as part of the base OS deliverable but then again maybe that's also a moving target to be avoided. [They produce code directly. Unix compilers are pretty much the only ones that run through the assembler, and that's because the PDP-11 Unix system had an assembler so fast that it wasn't much slower than generating the object files directly. -John]
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Re: IBM mainframe compilers produce object code or invoke assembler? compilers@is-not-my.name - 2011-04-27 21:19 +0000
Re: IBM mainframe compilers produce object code or invoke assembler? Thomas David Rivers <rivers@dignus.com> - 2011-04-27 19:05 -0400
Re: IBM mainframe compilers produce object code or invoke assembler? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2011-04-27 23:46 +0000
Re: IBM mainframe compilers produce object code or invoke assembler? glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2011-04-27 23:22 +0000
Re: IBM mainframe compilers produce object code or invoke assembler? arnold@skeeve.com (Aharon Robbins) - 2011-04-29 07:31 +0000
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