NSB8 Datasheet, PDF (124/158 Pages) List of Unclassifed Manufacturers – BASIC interpreter for Z80 family

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ITALIAN TECHNOLOGY
editing commands which are supposed to change the value of the OL pointer will continue to do
so. For example, typing <control-G> during insert mode will still copy the rest of the old line over
to the new line and advance the OL pointer to the end of the old line. To get the feel of insert mode,
and the on/off action of <control-Y>, set up an old line by typing the following:
10 PRINT “TEST LINE”
Now, use the <control-D> command twice, to speed you to a point just after the quote mark at the
beginning of the string literal (to accomplish this, strike four keys: <control-D>, T, <control-D>
again, and T again). Here is what you should see on the terminal:
10 PRINT “
Now, strike <control-Y>, which gives you this:
10 PRINT “<
Type the words
HERE IS A
and then a space. Then strike <control-Y> again. The terminal should now look like:
10 PRINT “<HERE IS A >
By going into insert mode temporarily, you avoided typing over and so obliterating any part of the
old line. So, if you now strike <control-G>, everything which came after the first quote in the old line
will be copied to the new line:
10 PRINT “<HERE IS A >TEST LINE”
If you strike RETURN at this point, the new line 10 will replace the old, and the net effect will be
that the new material will have been inserted between the first quote mark and the subsequent T of
the old. To see this net effect, strike <control-G> again and follow it with a <CR>.
CONTROL-N: CANCEL AND REEDIT NEW LINE
This command cancels the partially completed new line and permits another new line to be
entered. The canceled new line becomes the old line for subsequent editing. An at sign (@) is printed
and advancement to the next terminal line occurs when this command is typed. The at sign itself may
be typed instead of <control-N> to achieve the same results. After the cancel is executed, both OL
and NL pointers are reset to the start of their respective lines.
SEE ALSO:
Section HOW TO START
Section COMPATIBILITY WITH OTHER BASIC
Page 112
NSB8
Rel. 5.10