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When importing legacy applications, this variable tells jBASE what system it originally ran on. Note that programs and subroutines imported from different systems may be freely mixed.
jbase, adds, ap, fuji, prime, reality (aka ros), r83, r91, sequoia, ultimate, unidata, universe.
The values reference labels in the Config_EMULATE file.
The default is jbase, which will suit most imported applications.
Normal environment variable, so it can be set at any time by the commands: