Apple IIe - Page 259

The System Monitor 259
The monitor indicates the discrepancy at location 2040 with the
first two lines of output. It treats the error at 2080 in the same
manner.
Saving and Retrieving Data with the Cassette
The
monitor's write, W, command writes the contents of a range
of memory locations onto cassette tape. The command syntax is
straightforward. The command is entered by typing the starting
address; a period ; the ending address; and a W. The following
example will store the data in locations 1000 to 1040 on cassette
tape.
*1000.1040W - Don 't press the return here
Note that we did not immediately end the command by pressing
return . The reason for this was to first allow for the recorder 's
play/record button to be pressed. Press record, followed by
return. After return has been pressed , the monitor will write a 10
second steady tone leader, and will then record the data and the
checksum. When the recording process has been completed,
the monitor will cause the console speakers to beep.
The monitor's read, R, command is similar in operation to the
write command. Enter the address of the range where the data is
to be stored , then type R (again, no return) .
*2000.2040 R
To ready the cassette for input to the computer , rewind the tape
to the beginning of the leader tone . A steady tone will be emit-
ted. Press the recorder's play key, wait a few seconds, and then
press return.
The monitor will read the data and the checksum, and will then
verify that the data is correct . If no errors are discoverd the
monitor will respond with a beep. However , it the checksum
does not match the stored data, the message ERR will be
displayed.