Int 33/AX=0007h

AX = 0007h
CX = minimum column
DX = maximum column

Note: In text modes, the minimum and maximum columns are truncated to the next lower multiple of the cell size, typically 8x8 pixels

See Also: AX=0008h - AX=0010h - AX=0031h - INT 62/AX=0080

See Also: INT 6F/AH=0Ch"F_SET_LIMITS_X"