This Technical Note formerly described how to attach an external command to BASIC.SYSTEM.
Note: Yes, there are two "revised" by-lines and no "written" by-line for this Technical Note. This is how I found it online. -- AH
The ProDOS 8 Technical Reference Manual, Appendix A now documents the information which this Note formerly covered about installing an external command into BASIC.SYSTEM to be treated as a normal BASIC.SYSTEM command.
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