Sharp MZ-80B Owner's Manual page 27

20
[ 3] Reverse mode
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CURSOR KEYS
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-RVS key
lamp
FIGURE 2.13 Location of a key
TAPE CONTROL
In the reverse mode, all characters and symbols which can be input in the normal mode appear
on the screen in reverse highlighting.
For example, pressing the
0
key in the reverse mode inputs the reverse upper case character
and pressing it with the
I
SHIFT
key depressed inputs the reverse lower case character.
The reverse characters and symbols correspond to ASCII codes AOH to FEH. See Figure A.l,
ASCII code table .
As shown in Figure 2.21, the dot patterns constituting reverse characters are set/reset in the exact
opposite state of those comprising normal characters.
FIGURE 2.14 A title generated in the reverse mode
The entire display may be reversed by setting terminal PA
4
of programmable peripheral interface
8255 to high. For details, see Paragraph 4.3.1.