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address for this register is hex 3B5 or hex 3D5.
Cursor Start Register Format
Bit
7
6
5
4
3
2
1
0
111"111:
Row Scan Cursor Begins
Not Used
Bit O-Bit 4
Cursor Start-This register specifies the row scan
of a character line where the cursor is to begin.
The number programmed should be one less than
the starting cursor row scan.
Cursor End
R~gister
This is a write-only register pointed to when the value in the CRT
Controller address register is hex OB. The processor output port
address for this register is hex 3B5 or hex 3D5.
Cursor End Register Format
Bit
7
6
5
4
3
2
1
0
IIL..-....L...I_'_'~':
Row Scan Cursor Ends
Cursor Skew Control
Not Used
Bit O-Bit 4
Bit 5-Bit 6
Cursor End-These bits specify the row scan
where the cursor is to end.
Cursor Skew-These bits control the skew of the
cursor signal.
IBM Enhanced Graphics Adapter 33
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