| 摘要 |
PROBLEM TO BE SOLVED: To enable reading out plural data simultaneously and to perform picture processing at high speed by generating plural row addresses and column addresses from one address, supplying selectively them to corresponding row and column address decoding circuits respectively, and obtaining plural texture data. SOLUTION: A row address part and a column address part constituting a texture map are inputted through buffer circuits 30, 31 respectively, in a row address Y, texture data of even number rows and odd number rows are selected by a selector 300, and stored in memory array buffers A20, B21. On the other hand, an output of the row address buffer 31 Xi and Xi+1 deviated by one by a single step Inc circuit 310 are inputted to column decoding circuits 201, 211 respectively, four texture data are outputted relating to row addresses of memory arrays 20, 21, operation is performed by a combination circuit 40, and data stuck to a pixel constituting polygon is obtained. |
