Maintenance Manual
Page 112
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 ... 4. Text Color This test item is required to respond according to check whether all 16 colors foreground and all 8 colors background works normally in the screen. 5. 80 * 25 Text Mode 0$1 47 In the test, user is to the instruction 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 ... 4. Text Color This test item is required to respond according to check whether all 16 colors foreground and all 8 colors background works normally in the screen. 5. 80 * 25 Text Mode 0$1 47 In the test, user is to the instruction in VGA text mode.
Maintenance Manual
Page 116
3.10 Peripheral 3 Diagnostic Programs Subtest 07 Register Test This test item is to check whether the registers of red, green, blue, black and white. This test item needs user to submit the parameters: The Parameters is setting the delay time each color is required to respond according to check whether the system (the video adapter and the display) could display the purity color of the video adapter works normally. Subtest 08 Color Purity Test This test item is to the instruction in the screen. In the test, user is display interval 0$1 51
3.10 Peripheral 3 Diagnostic Programs Subtest 07 Register Test This test item is to check whether the registers of red, green, blue, black and white. This test item needs user to submit the parameters: The Parameters is setting the delay time each color is required to respond according to check whether the system (the video adapter and the display) could display the purity color of the video adapter works normally. Subtest 08 Color Purity Test This test item is to the instruction in the screen. In the test, user is display interval 0$1 51