 The Dazzler supported four graphics modes in total, selected by setting or clearing bits in the control register (0F) that controlled two orthogonal selections.The first selected the size of the frame buffer, either 512 bytes or 2 kB.The other selected normal or "X4" mode, the former using 4-bit nybbles packed 2 to a byte in the frame buffer to produce an 8-color image, or the latter which was a higher resolution monochrome mode using 1-bits per pixel, 8 to a byte.