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Toshiba M40 User Manual

Page 111

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3.8 Video

3 Diagnostic Programs

4. Text Color

This test item is to check whether all 16 colors foreground and all 8 colors
background works normally in VGA text mode.

The bit4-6 of the attribute byte of a character defines 8 background colors (black,
blue, green, cyan, red, brown, magenta, and light gray), and the bit0-3 defines 16
foreground colors (dark gray, light blue, light green, light cyan, light red, light
magenta, yellow, and white besides the above 8 colors).

In the test, user is required to respond according to the instruction in the screen.

5. 80 * 25 Text Mode

This test item is to check whether 80*25 Text Mode works normally.

EQUIUM M40/M45/Satellite M40/M45 Maintenance Manual

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