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FORTH-10 is a Forth language interpreter included in the Panda TOPS-20 distribution. The anonymous programmer describes the implementation as “NOT totally standard”. The interpreter can be started with the following command on TWENEX:
@FORTH
MIDAS assembly language source is available in file TOPS20:<UTILITIES>FORTH.MID
.
The following Forth words are hard-coded in the FORTH-10 dictionary.
At start-up, FORTH-10 searches the user's log-in directory for a file named AUTO-LOAD.4TH
. If such a file exists, it is loaded automatically. If the file does not exist, FORTH-10 displays a standard greeting message.