Where does GOTO Go to?

Gellerich, Wolfgang; Kosiol, Markus; Plödereder, Erhard

doi:10.1007/bfb0013504

Cited by 5 publications

(2 citation statements)

References 6 publications

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“…A comparison of Fortran programs written in the 1970s to today s C and Ada code revealed GOTO densities that differ by several orders of magnitude [9,10]. Obviously, the more powerful the control structures of a language, the less frequently programmers use GOTO.…”

Section: Control Structures In Pl8mentioning

confidence: 97%

The GNU 64-bit PL8 compiler: Toward an open standard environment for firmware development

et al. 2004

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For two decades, large parts of zSeries ᭨ firmware have been written in the PL8 programming language. The existence of a large amount of mature zSeries firmware source code and our excellent experience with PL8 for system programming suggest keeping this language. However, the firmware address space of today s zSeries servers may exceed 2 GB, raising the need for a new 64-bit PL8 compiler, since the original implementation, developed at the IBM Thomas J. Watson Research Center, Yorktown Heights, New York, supports only 32-bit platforms. The GNU compiler collection (GCC) (GNU is a freeware UNIX ᭨ -like operating system) has been used to translate those parts of firmware written in C for some years and has also proved successful in compiling Linux for zSeries. This fact, combined with the highly modular GCC design, suggested reimplementing PL8 within the GCC framework. In this paper, we report on the extension of PL8 to support 64-bit addressing, its implementation as a GCC front end, and the validation of the new compiler. We also evaluate PL8 as a language for highly reliable low-level programming and give some performance data. The paper documents the high level of quality achieved by the GCC open-source project and how such software fits into the traditional IBM software development processes.

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Section: Control Structures In Pl8mentioning

confidence: 97%

The GNU 64-bit PL8 compiler: Toward an open standard environment for firmware development

et al. 2004

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“…This is, however, the only possible model behind the infamous G{3TO statement. An examination of GOT0 usage in Ada, Fortran, and C [13] showed that GOT{3 is used rarely today, but one final stronghold of G{3TOs are programs produced by generators. We were interested to see whether GOT0 is really needed to efficiently encode FAs or more structured implementations are equally or possibly even more efficient.…”

Section: Introductionmentioning

confidence: 99%

Myths and facts about the efficient implementation of finite automata and lexical analysis

Brouwer

Gellerich

Plödereder

1998

Lecture Notes in Computer Science

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Finite automata and their application in lexical analysis play an important role in many parts of computer science and particularly in compiler constructions. We measured 12 scanners using different implementation strategies and found that the execution time differed by a factor of 74. Our analysis of the algorithms as well as run-time statistics on cache misses and instruction frequency reveals substantive differences in code locality and certain kinds of overhead typical for specific implementation strategies. Some of the traditional statements on writing "fast" scanners could not be confirmed. Finally, we suggest an improved scanner generator.

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