| 摘要 |
<p>A memory control apparatus for a CRT controller is dis- dosed. When the same data from a data input circuit (123) is loaded into a plurality of addresses of a buffer memory (100) for storing drawing data, the address of the buffer memory (100) is automatically updated. X- and Y-address generators (106, 107) update address data in response to pulses from X- and Y-axis pulse generators (108, 109). A microprocessor supplies to register (114, 117) the width of the X and Y thickness of an address to be updated, and coordinate data representing a write start point to the address generators (106, 107), and the drawing data to be written to a data input circuit (123).</p> |
