... lamps instruction sheetsBIOS keyAccording to the temporary switch short BIOS; According to the store the currently selected longBrief keyShort on ... ." ,0x11 DMA channel 1, "test." ,0x12, "testing the DMA page registers." ,0x13, "test 8741 keyboard controller interface." ,0x14, ... 8259 interrupt function." ,0x23, "test protection way, the virtual way and page way." ,0x24, "more than 1Mb expanded memory ...