Simulation driver 122, 5 simulation driver – Casio IT-2000D User Manual

Page 122

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7.5 Simulation Driver

The simulation driver is used to develop on a personal computer the application programs that run

on the IT-2000.

The application development libraries supported for this terminal control only the hardware that is

compatible with the IBM PC/AT. This is important to remember if the application programs for the

terminal are developed on a personal computer. Although each library is linked to the application

program to form an executable program, they do not contain code that is specific to the hardware of

the handy terminal. Consequently, if a simulation driver is used rather than one of the drivers

dependent on the terminal hardware, the application program can be made to run, without

modification, on the personal computer. This is the basic concept of simulation.

The shaded portion in the diagram below shows the simulation drivers to be replaced However, for

the mouse driver, use Microsoft's mouse driver. This is because the mouse driver on the terminal

simulates the operations of the Microsoft Mouse driver, while other drivers simulate the actual

operations on the terminal.

Fig. 7.7

In the following chapters, these simulation drivers are explained in detail.

System Driver (SIM)

System Library

Application Program

Keypad Library

OBR Library

Keypad Driver (SIM)

Hardware Window

Driver (SIM)

IBM PC/AT

Standard Mouse Driver

INT33

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