Apple II User Manual

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|  TOPIC -- Apple II -- Summary of Monitor Commands

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Summary of Apple II Monitor Commands

Examining Memory.

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{adrs}

Examines the value contained in one location.

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{adrs1}.{adrs2}

Displays the values contained in all locations between {adrs1} and {adrs2}.

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[RETURN]

Displays the values in up to eight locations following the last opened location.

Changing the Contents of Memory.

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{adrs}:{val} {val} ...

Stores the values in consecutive memory locations starting at {adrs}.

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:{val} {val}

Stores values in memory starting at the next changeable location.

Moving and Comparing.

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{dest}<{start}.{end}M

Copies the values in the range {start}.{end} into the range beginning at {dest}.

(M=move)

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{dest}<{start}.{end}V

Compares the values in the range {start}.{end} to those in the range beginning at

{dest}. (V=verify)

Saving and Loading via Cassette Tape.

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{start}.{end}W

Writes the values in the memory range {start}.{end} onto tape, preceded by a ten-

second leader.

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{start}.{end}R

Reads values from tape, storing them in memory beginning at {start} and stopping

at {end}. Prints "ERR" if an error occurs.

Running and Listing Programs.

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{adrs}G

Transfers control to the machine language program beginning at {adrs}. (G=go)

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{adrs}L

Disassembles and displays 20 instructions, starting at {adrs}. Subsequent L's will

display 20 more instructions each. (L=list)

Miscellaneous.

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{adrs}S

Disassemble, display, and execute the instruction at {adrs}, and display the

contents of the 6502's internal registers. Subsequent S's will display and execute

successive instructions. (S=step)