| 摘要 |
PROBLEM TO BE SOLVED: To prevent logical operation different from the original intent from being carried out, while allowing high speed processing, when performing RMW.SOLUTION: A generation unit generates drawing information including the information indicating at least a drawing pattern, a drawing address showing an address on the memory of drawing pattern, and a logical operation being applied to the drawing pattern. When the information indicating a logical operation included in the drawing information generated in the generation unit indicates a logical operation on the memory using read modify write, a determination is made whether or not a drawing address included in the drawing information matches a drawing address included in the drawing information that is held in at least one of a plurality of holding parts for holding the drawing information. When a determination is made that they match each other, read processing by read modify write is stopped temporally for a memory based on the drawing information generated in the generation unit. |
