The SNOBOL4 language translator was still written in assembly language. However the macro features of the assembler were used to define the virtual machine inst

The SNOBOL4 language translator was still written in assembly language. However the macro features of the assembler were used to define the virtual machine instructions of the SNOBOL Implementation Language, the SIL Was SIL the inspiration for ZIL (Zork Implementation Language) which was also a virtual machine and allowed Infocom to release their text adventures on so many home computer platforms at once in the 80s?