memory to be initialized with AA (hex) in all bytes,
starting with address 532. This, of course, destroys
any previous BASIC programs, data in the AIM 65
Editor Text Buffer, or machine level routines that
may have been stored in this portion of memory.
Be sure to save any desired data or programs that
may exist in this area before entering BASIC with
the 5 key.
Note that text in the Text Buffer or machine level
routine may co-exist in memory with BASIC by
locating such text or routines in upper memory
and entering the highest BASIC address with a
value lower than the starting address of such text
or routines.
EXITING BASIC
To escape from BASIC and return to the AIM 65 Monitor, type ESC any time the BASIC command
cursor is displayed. You can also escape BASIC while a program is running, by pressing the F1 key
(see Subject 301).
Pressing RESET will also cause the AIM 65 Monitor to be entered as well as performing a hardware
reset of AIM 65.
REENTERING BASIC
BASIC may be reentered by typing 6 whenever the AIM 65 Monitor prompt is displayed. In this
case, however, any existing BASIC program is retained in memory. AIM 65 will respond to a
Key 6 entry with:
<6>
^6>
BASIC CURSOR
The BASIC cursor (^), displayed in column 1 whenever BASIC is in the command entry mode,
indicates that a BASIC command can be entered. The last displayed data resulting from the previous
command is retained except for column 1 to provide information continuity with the previous
command or displayed output data. This is especially helpful when the printer control is turned off
to preserve printer paper.
When the first character of the next command is typed, the display will blank except for the newly
typed character. The cursor then advances across the display in accordance with typed characters
to indicate the character input position.
The displayed cursor does not appear on the printer output, thus any data printed in column 1 will
be retained.
CAUTION
The minus sign associated with any negative values
that are displayed starting in column 1 will be
replaced with the cursor in the BASIC command
entry mode. In the case of direct commands, the
minus sign will only flash before the cursor is
displayed if the printer control is on or may not
appear at all if the printer control is off. In order
to retain the minus sign, a leading blank should
be displayed before the value is displayed (see
Subject 204).
PRINTER CONTROL
While in the BASIC command entry mode, the printer may be turned on or off by typing PRINT
while CNTL is pressed (CNTL PRINT). The on/off state of the printer is displayed after typing
PRINT.
If the printer is turned off, statements in the BASIC command entry mode and data output from