Chapter 9 Writing Machine Language Instructions and Directive Statements
Instruction Statement Fields 147
9.2 Instruction Statement Fields
Source statements that code machine language instructions and directives are built from four fields.
[label] [operation [operand [, operand]]] [comment]
Contents of brackets [ ] can be omitted.
Coding rules
Source statements may contain a label field only.
Depending on the operation, source statements may contain no operand.
Fields are delimited by at least one space or tab. Two operands are delimited by a comma (,).
A statement with an LF only, omitting all fields, is a blank statement.
Statements are terminated by the LF character (line feed = 0x0A).
The maximum number of characters on one line is 255.
To Next Page
Loading...
