Epson HX-20 - Monitor - Commands


Command Syntax Description
S (Set) S Writes the 8-bit value "new" (in hex) to 16-bit address . Entering only the address and pressing enter will make the old value at the address appear and the cursor put after the old value for entering a value.
D (Dump) D Dumps the values from addresses to to the display.
G (Go) G, Sets the programme counter to the 16-bit address and will return to Monitor before the breakpoint address is executed.
X (Examine) X Allows the user to display and change the contents of each register. The RETURN key applies the changed value (if any) and jumps between registers. Typing a non-hexadecimal character exits this command.
R (Read) R, Transfer data from an external storage to memory. can be any of M (microcassette), C (external cassette) and P (ROM cartridge). The memory address is specified using the "A (Address)" command.
W (Write) W, Transfer data from memory specified by the "A (Address)" command to an external storage. See "R (Read)" for more information. ROM cartridge is not supported by this command.
V (Verify) V, Verifies data transferred to an external storage against the memory specified by the "A (Address)" command. See "R (Read)" for more information. ROM cartridge is not supported by this command.
A (Address) A Specify an address range for commands R, W and V. The user will be prompted with T (Top address), L (Last address), O (Offset value) and E (Entrypoint). Offset and entrypoint values are only used by the "W (Write)" and "V (Verify)" commands.
K (Key set) K Enter a sequence of keys to be pressed automatically on power up (and reset). Press CTRL+@ to stop. A maximum of 18 characters can be entered and function keys counts as two characters.
B (Back) B Return to the procedure from which Monitor was called.

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