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6.4 Basic Editing Commands CP/M 3 User's Guide
6.4.1 Moving the Character Pointer
This section describes commands that move the character pointer in useful increments
but do not display the destination line. Although ED is used primarily to
create and edit program source files, the following sections present a simple text as
an example to make ED easier to learn and understand.
The B (Beginning[Bottom) Command
The B command moves the CP to the beginning or bottom of the memory buffer.
The B command takes the following forms:
B, -B
-B moves the CP to the end or bottom of the memory buffer; B moves the CP to the
beginning of the buffer.
The C (Character) Command
The C command moves the CP forward or backward the specified number of
characters. The C command takes the following forms:
nC, -nC
when n is the number of characters the CP is to be moved. A positive number moves
the CP towards the end of the line and the bottom of the buffer. A negative number
moves the CP towards the beginning of the line and the top of the buffer. You can
enter an n large enough to move the CP to a different line. However, each line is
separated from the next by two invisible characters: a carriage return and a line-feed,
represented by . You must compensate for their presence. For example, if
the CP is pointing to the beginning of the line, the command 30C moves the CP to
the next line:
Emily Dickinson said,
"I fin^d ecstasy in living -
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