Hitachi HD64411 Q2 User Manual page 73

Quick 2d graphics renderer
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–1024
–1024
Relationship between Binary Work Coordinates and Addresses: Work coordinates are
liner coordinates that start from the work area start address. Work coordinates comprise 2-
dimensional coordinates reflected at each pixel (512 or 1024 pixels) specified by the MWX bit in
the rendering mode register (REMR). Examples are shown in figures 4-6 and 4-7.
The memory capacity required for the binary work area is (the number of pixels specified by the
MWX bit) × (the number of pixels along the Y-axis)/8 [bytes].
0
512
544
Display list and binary
Figure 4-6
Example of Relationship between Binary Work Coordinates and
66
0
0
255
511
Y
Figure 4-5
Work Coordinate System
Work area
source area
Addresses
Minimum
installation
511
X
Maximum
installation
1023
1023
511
Work area start address: 40000H
Display list start address: 44000H
Conditions: 8 bits/pixel
512-pixel memory window
(MWX = 0)

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