An emulator adds a layer of abstraction and I presume would be interpretive... other alternative is a new compiler for modern day systems to execute the the old Jovial sourcecode. Alternately a program that reads and converts Jovial source code to C/C++ source code or a more appropriate modern language if Jovial has unique strengths beyond C capability. This would obsolesce Jovial and help in facilitating modern peripheral hardware upgrades to eventually end legacy hardware systems. They fear the hardware cost, disruption and hiccups of rolling out a system conversion in a DEI embracing industry. I would too.