An INTEL 8080 microprocessor development system, CERN

The INTEL8080has become one of the two most widely used microprocessors (VP'S) at CERN, the other being the MOTOROLA 6800. Even though this is the case, there has been up to date only rudimentary facilities available for aiding the development of application programs for this PP. An ideal development system is one which has a sophisticated editing and filing capability, an as-sembler/compiler, and access to the nP application. In many instances one also requires access to a PROM pro-grammer as the application may utilize only PROMS for program storage. With these thoughts in mind, an INTEL 8080 nip development system was implemented in the PS Division at CERN. While any other minicomputer would be suitable, this system utilizes a PDP-11/45 minicomputer as the editing and file-handling machine, and an MCS 8/ MOD 80 nP development system for assembling, PROM pro-gramming, and debugging user programs at run time. The two computers are linked by a CAMAC crate system, which provides the means of access to nP applications in CAMAC and the interface of the development system to other ap-plications