Apple IIe - Page 282

282 Apple lie Users Handbook
Use of INVERSE, FLASH, and HOME
The FLASH command is not supported by the 80-column board.
However, FLASH can be used while the 80-column board is
inactive. If FLASH is active during the activation of the 80-column
board, the screen will turn white, and LIST'ing a program may
return an unintelligible result. To recover, enter the NORMAL
command .
The
80-column board extends the INVERSE capability of the
Apple lie to include lowercase letters. Without an active 80-
column board, only capital letters can be displayed in INVERSE
video.
The HOME command works as usual, with one exception. This
exception occurs if the computer is in the inverse mode when
the HOME command is issued. While the 80-column board is
inactive, the HOME command causes the screen to be black-
ened, but all subsequent output will appear in INVERSE video.
However, while the board is active, the HOME command causes
the entire screen to be colored white, with all subsequent output
in INVERSE video.
Uppercase-Restrict Mode
A very convenient feature of the 80-column board is the
uppercase-restrict mode. Upon entering this mode, all lower-
case entries will be interpreted as capital letters, unless they are
entered between quotation marks. This feature relieves the
programmer of the tedium of repeatedly pressing the CAPS
LOCK key.
ESC,R
ESC ,T
activates uppercase-restrict
deactivates uppercase-restrict
When programming, the uppercase-restrict mode is useful for
the entry of PRINT statements. BASIC requires that all com-
mands be in capital letters. It is often desirable to have a program
output in both lowercase and uppercase letters. Without an