Draw function copies the source pixel memory area into the destination memory area.
绘制函数将源像素内存区复制到目标内存区。
In the existing architecture we modified, the dumb.c draw function copies the source pixel memory area into the destination memory area.
在修改后的体系结构中，dumb . c绘制函数将源像素内存区复制到目标内存区。
The memory region size (also called logical memory block (LMB) size) must be the same on the source and destination systems.
源系统和目标系统的内存区域大小，也称为逻辑内存块(LMB)大小，必须相同。
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