摘要:

AbstractThis paper is concerned with choosing a subset of FORTRAN which will make it possible to write portable programs on medium‐sized microcomputers.To achieve this, some restrictions are placed on ANSI 1966 Standard FORTRAN after studying and analysing a collection of FORTRAN manuals for medium‐sized microcomputers. Some assumptions are made concerning machine dependent constants after a careful observation. By combining these restrictions with those made in compatible Fortran1and making use of the assumptions, portable programs can be writ

ISSN:0038-0644    

DOI:10.1002/spe.4380150402

出版商:John Wiley&Sons, Ltd.    

年代:1985

数据来源: WILEY

摘要:

AbstractThis paper describes the design and implementation of the FOAM text formatting system. FOAM runs on an 8085 microprocessor system under CP/M and produces output on Diablo printers. The main feature of the system is that it supports two levels of formatting. On a meta level, the system accepts descriptions of text and document classes together with formatting styles for text components. From the description, a specific instance of a formatter is generated. This formatter, then, on the text level accepts the input of a text of the described class and produces a formatted document as specified by the formatting styles.

ISSN:0038-0644    

DOI:10.1002/spe.4380150403

出版商:John Wiley&Sons, Ltd.    

年代:1985

数据来源: WILEY

摘要:

AbstractThe functions and structure of the network management subsystem of the GAMMA‐NET, a local computer network at the University of Tsukuba, are presented. The network management subsystem is an integrated subsystem that offers a convenient man‐machine interface for the network users during the execution of required jobs, and levels the workload throughout the system, as well as managing the network operati

ISSN:0038-0644    

DOI:10.1002/spe.4380150404

出版商:John Wiley&Sons, Ltd.    

年代:1985

数据来源: WILEY

摘要:

AbstractA compiler maps abstract data and control structures into equivalent representations at the order code level of a computer. When a program written in a high level language fails, there is presented the problem of interpreting the state of the abstract (high level) machine in terms of the state of the physical machine which is all that is available. This interpretation is undertaken by a program usually known as a run‐time diagnostics package. In this paper a novel package is described which provides diagnostics for dynamically created data structures in addition to the usual facilities. It has been implemented for the language Pascal and has been used successfully for 18 month

ISSN:0038-0644    

DOI:10.1002/spe.4380150405

出版商:John Wiley&Sons, Ltd.    

年代:1985

数据来源: WILEY

摘要:

AbstractIn longitudinal studies subjects are measured from time to time at examinations. The subjects have some data, such as birth date, which do not change between the examination occasions. The bulk of the data are values, of variables such as height, which are taken at the examinations. The essence of these longitudinal studies is found in the change from one exam to the next. A program is described which will derive values from this type of data structure and produce summary statistics. Values can be sent to BCD files for printing or further analysis.

ISSN:0038-0644    

DOI:10.1002/spe.4380150406

出版商:John Wiley&Sons, Ltd.    

年代:1985

数据来源: WILEY

摘要:

AbstractWe identify a set of primitive operations supporting coroutines, and demonstrate their usefulness. We then address their implementation in C according to a set of criteria aimed at maintaining simplicity, and achieve a satisfactory compromise between it and effectiveness. Our package for the PDP‐11 under UNIX† allows users of coroutines in C programs to gain access to the primitives via an included definitions file and an object library; no penalty is imposed upon non‐coroutine

ISSN:0038-0644    

DOI:10.1002/spe.4380150407

出版商:John Wiley&Sons, Ltd.    

年代:1985

数据来源: WILEY

摘要:

AbstractThis paper describes software engineering aspects and the scope of three subroutine libraries developed at the U.K. National Physical Laboratory (NPL). The libraries are concerned with three important fields of mathematical computation: data approximation, linear algebra and optimization. A portable subset of Fortran was used in the construction of these libraries, which have a highly modular structure and are supported by full user documentation.Reference is made to Microtext, an NPL software product for displaying structured information. Its value in respect of the subroutine libraries lies in its ability to assist the user in selecting appropriate subroutines for the solution of his problem.

ISSN:0038-0644    

DOI:10.1002/spe.4380150408

出版商:John Wiley&Sons, Ltd.    

年代:1985

数据来源: WILEY

摘要:

AbstractThe program for a small embedded computer system has been implemented in Modula. The execution speed of this program was particularly important and the speed achieved was adequate. Some parts of this program are described using a notation derived from the Mascot approach. The use of the Mascot notation with a module‐structured language is discussed and some suggestions for an appropriate style are made. Some simple optimizations of the program were made in order to achieve increased execution speed and it was observed that the final program ran at about twenty times the rate of an equivalent Fortran program. Some points on the suitability of Modula are briefly discussed and, in a similar way to previous authors, it is concluded that Modula is suitable for applications of this typ

ISSN:0038-0644    

DOI:10.1002/spe.4380150409

出版商:John Wiley&Sons, Ltd.    

年代:1985

数据来源: WILEY

ISSN:0038-0644    

DOI:10.1002/spe.4380150401

出版商:John Wiley&Sons, Ltd.    

年代:1985

数据来源: WILEY