ocr: Memory organization in unchained 236-color Modes (as Mode X), version 1.0 This is hoH the screen to the left is 0123456.. 319 represented in the UGA video Menory. Plane 3 This is what is shoun 3 / 11 15 19 23 : 3151 319 on the screen 0 1 2 3 4 5 78 - 79 Plane 2 2 6 10 14 18 22 ++ 314 318 0 1 2 3 4 5 78 79 When uriting to one address you can select 1-4 bit Plane 1 planes to receive the data, by setting the 1 5 9 13 17 21 - 313317 Write Plane Enable 0 1 2 3 4 5 78 79 register. When reading, select one of the Plane 0 four planes by setting the 0 4 8 12 16 20 312 316 Read Plane Select register. 0 ...