ocr: VIDEO MATRIX ADDRESS A15 A14 A13 A12 All AlO A9 A8 A7 A6 A5 A4 A3 A2 Al AB VM4 VM3 VM2 MV1 VME 1 VC9 VC8 VC7 VC6 VCS VC4 VC3 VC2 VCl VCB The ATTRIBU UTE mencry also consists of 1909 consecutive locations, and con- tains the FLASH bit, the 4 bits of color and the 3 bits of luminance for each character locaticn. The locaticn of the attribute memory is also controlled by the VIDEO MATRIX base register. Like the video matrix, the upper 5 bits of the address of the attributes are the VIDEO BASE REGI STER. However, for attribute memory, A19 is always set to a 9, so is always 1K below the video matri ...
