014 - Equipment Byte
The equipment byte defines the basic equipment in the system for
the power-on diagnostic tests.
11xx xxxx Number of diskette drives
These bits indicate the mumber of diskette drives
installed.
00 = One Drive
01 = Two Drives
10 = Reserved
11 = Reserved
xx11 xxxx Display Operating Mode
These bits indicate the operating mode of the display
attached to the video port, as shown in the following
figure.
00 = Reserved
01 = 40-Column Color Mode
10 = 80-Column Color Mode
11 = 80-Column Monochrome Mode
xxxx 11xx Reserved
xxxx xx1x Math Coprocessor Presence
When set to 1, this bit indicates that a math co-
processor (80x87) is installed.
xxxx xxx1 Diskette Drive Presence
When set to 1, this bit indicates that a diskette
drive is installed.