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VM/370 CE - Editing an APL function


 

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I am following what is printed in the APL\360 Primer book.
To delete a line (i.e. #3)
[3] press the ATTN key, followed immediately by carrier return.
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I have these problems:
1) is carrier return some 2741 key that PCOMM 3270 emulator doesn't have, or is carrier return to be intended as carriage return?
2) if I press ATTN and CR I find myself at the CP prompt, how is it possible to return to my APL session?
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Thanks for any suggestions, I'm not at all knowledgeable about the VM/370 system.

Marco

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