[comp.sys.ibm.pc] Doin' direct screen read/write

bobc@killer.DALLAS.TX.US (Bob Calbridge) (01/30/89)

Where does an interested party go to find information concering the memory
map of the video screen?  I would like to do some direct screen writes and
at this point can't find anything in either the tech ref or in publications.
Are there any books available on the subject that should be found at the 
usual book stores?
 
Thanks,
Bob