MB86290A Datasheet, PDF (15/184 Pages) Fujitsu Component Limited. – Graphics Controller Hardware Specifications

BLT/Rectangle fill
This function draws a rectangle using logical calculations. It is used to clear
the frame memory and Z buffer. At scrolling, the rolled over part can be
cleared by using this function in the blanking time period.
BLT Attributes
Attribute
Raster operation
Description
Selects two source logical operation mode
Pattern (Text) drawing
This function draws a binary pattern (text) in a designated color.
Pattern (Text) Drawing Attributes
Attribute
Enlarge
Shrink
Description
2×2
Horizontally × 2
Horizontally 1/2
1/2 × 1/2
Clipping
This function sets a rectangular window in a frame memory drawing surface
and disables drawing of anything outside that window.
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