ERIC Number: ED049613
Record Type: Non-Journal
Publication Date: 1970-Dec
Reference Count: N/A
IMP: The LRDC Integrated Macro Package.
Fitzhugh, Robert J.; Chadwick, Martin M.
The Learning Research and Development Center Time-Sharing System (LRDC/TSS) supports numerous non-standard devices and terminals and provides a variety of powerful programing options, enabling the researcher to maintain close control over the experimental environment. To achieve this degree of flexibility, it was necessary to write programs exclusively in assembly language, which made program development time consuming and produced programs that were difficult to "debug." The integrated Macro Package (IMP) was developed to provide a programing aid which does not become involved in the problems of compiler writing. It provides a programing structure and a body of debugged and documented routines to programers who write for the LRDC/TSS. Although it is used largely for computer-assisted instruction and on-line laboratory application, most of the routines are general purpose. IMP has a conditional assembly feature, which permits the programer to identify sections of the code that should be assembled only if a specified condition is met. This guide defines the conventions governing memory allocation, subroutine cells, input/output, and some miscellaneous function routines. This IMP-type solution would seem to be appropriate for laboratory installations with smaller computers and applications for which there are no suitable, higher level languages available. (Author/JY)
Publication Type: N/A
Education Level: N/A
Sponsor: Office of Education (DHEW), Washington, DC. Bureau of Research.
Authoring Institution: Pittsburgh Univ., PA. Learning Research and Development Center.