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TMT Pascal Language Description
Pascal Language Structure
Statements

Port, PortW and PortD

TMT Pascal implements three predefined arrays to directly access 80x86 CPU data ports:
  Port, PortW, and PortD.
Port, PortW, and PortD are one-dimensional arrays, and each element represents a data port whose port address corresponds to its index. When a value is assigned to a component of Port, PortW or PortD, the value is output to the selected port. When a component of Port, PortW or PortD is referenced in an expression, its value is input from the selected port.


Previous: Mem, MemW, MemL, and MemD Statements To the Table of Content Next: Repeat Statement
Mem, MemW, MemL, and MemD Statements Table of Content Repeat Statement

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