Functions And Use Of Monitor Commands - Sharp MZ-700 Series Owner's Manual

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5.2
Functions and Use of Monitor Commands
This section describes the functions and use of the eight monitor commands.
• Commands are executed when the |CR| key is pressed. Characters must be entered in the correct order.
If illegal characters (such as spaces) are included in a command string, the monitor rejects the command.
• All numeric data must be entered in hexadecimal form at, and all data is displayed in hexadecimal form
at. Therefore, 1-byte data is represented with two hexadecimal digits and 2-byte data is represented
with a four hexadecimal .digits. For example, the decimal number 21 is displayed as 15 and the decimal
number 10 must be typed in as OA. The upper digit " 0" cannot be omitted.
• If the number of characters typed as an operand exceeds the specified number, excess characters are
discarded.
• Each command can access any location of memory. Therefore, the monitor program may be changed
if the commands are used carelessly. Since this can result in loss of control over the system, be careful
to avoid changing the contents of the monitor program.
5.2.1 L command
L
This command loads the first machine language file encountered on the cassette
tape into memory. After the L command is entered, the display changes as follows.
X L
j
±
P L A Y
Press the j PLAY [ key of the data recorder. When a machine language program is
found, the message "LOADING program-name" is displayed. For example, the
following message is displayed during loading of the BASIC interpreter.
L O A D I N G
B A S I C
i
Format
Function
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