http://bugs.winehq.org/show_bug.cgi?id=2408
------- Additional Comments From flerchjj@ieee.org 2005-03-12 23:21 ------- I have some information on this VGA register (& others). Maybe it will help someone wanting to work on this.
Register 0x03ba is a general VGA register that refers to input status. [7][6][5][4][3][2][1][0] [7][6]- 0 0 [5][4]-system diagnostics [3]-vertical retrace; 1 retrace in progress, 0 no retrace occuring [2]-EGA light pen switch [1]-EGA light pen strobe [0]-1 CPU is accessing display, 0 no display access occuring