76
Now that you have defined a macro, let’s see how to use it.
This program will print one line using several printing features.
Then it “calls” the macro in line 60. When line 80 prints the
style is “plain vanilla” because the macro has reset it.
10 LPRINT CHR$(27);"Q";CHR$(40);
20 LPRINT CHR$(27);"a";CHR$(2);
30 LPRINT CHR$(27);"-1";
40 LPRINT CHR$(27);"h";CHR$(l);
50 LPRINT "TESTING ABCD"
60 LPRINT CHR$(27);"+";CHR$(l);
70 LPRINT "TESTING ABCD"
80 END
n Reading a hex dump
The BASIC in some computers changes ASCII codes before
they send them to the printer. If you run into problem because
of this, try this hex dump to check the ASCII codes.
First turn off the printer. Hold down both the NLQ key and
Paper Feed key and turn on the printer, then run the following
program.
10 FOR I=0 TO 255
20 LPRINT CHR$(I);
30 NEXT I
40 LPRINT
50 END
If your system passes the codes directly to the printer without
changing them, you will get a printout like this. (You can print
out the last remaining line in the print buffer by putting the
printer off line with the On Line key.)