ACM SIGSIM Simulation Digest
| Hi-index | 0.00 |
In this paper, the implementation of an interactive version of GASP IV, a FORTRAN-based discrete/continuous simulation language (1,2,3) is described. Interactive GASP IV was implemented on a General Automation SPC 16/65 mini-computer configured with 16K words of core memory and operating under the control of a disk based operating system (4). All features of GASP IV are included in the interactive version. A list of the subprograms of GASP IV is presented in Figure 1 (5). In addition, four forms of real-time man-computer interaction have been designed into Interactive GASP IV:1) online presentation of simulated system status on requests through the use of clearly formatted reports and plots;2) free formatted online data input of GASP variables and model parameters;3) programmed decision events requiring online responses as part of the discrete event structure; and4) user intervention in an executing program through keyboard interrupts.