Port


2.2.9.8. Mem, MemW, MemL, and MemD Statements	Table of Contents	2.2.9.10. Repeat Statement

- 2.2.9.9. - Table of Contents

2. TMT Pascal Language Description

2.2. Pascal Language Structure

2.2.9. Statements

2.2.9.9. Port, PortW, and PortD Statements

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.

Each component of Port is a Byte
Each component of PortW is a Word
Each component of PortD is a DWORD.

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.


2.2.9.8. Mem, MemW, MemL, and MemD Statements	Table of Contents	2.2.9.10. Repeat Statement

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