Star Micronics NB24-10/15 The characters that change are shown beneath their ASCII code in Table

99

The characters that change are shown beneath their ASCII code in Table 6-6.

Table 6-6

International character sets

H Printing characters in the control code area

When you refer the Appendix C, you’ll find many characters are printed in the control code area. (Remember that the low- order control codes are the ASCII codes 0 through 31 plus 127, and the high-order control codes are 128 through 159 plus 255.) These codes don’t normally print symbols on paper, rather they cause the printer to change modes. To make them print as normal symbols requires an extra command. For example, the command to “normalize” the high-order control codes is (ESC)

“6”, which is the same as selecting the Character set #2.

The low-order control codes can also be defined with the IBM-P mode. Try this program with the IBM-P mode.

10 ’ Demo of characters in IBM-P mode

20LPRINT CHR$(27);"\";CHR$(32);CHR$(O);

30FOR I=0 TO 31

40LPRINT CHR$(I);

50NEXT I

60LPRINT

70 END

R