Further digging on error 220 doesn't look good:
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Explanation: FIOCS -- A data set
reference number exceeds the limit
specified for data set reference
numbers when this operating system was generated.?
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I found that on Fortran IV System/360 guide ... so seems to be something related to fortran compiler I/O operations on the underlying system.
So, as I understand, some zork fortran sources cannot be compiled under VM/370 CE CMS.
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Cheers.
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--
Alejandro Olivan.
Spain.
