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is used as is, but kx uses the data read from the coefficient table.
∙ When mode 2 is specified, kx read from the rotation parameter table is used as it is, but ky is the data read from the coefficient table.
When mode 3 is specified, the viewpoint coordinate Xp in the X direction that has been converted according to the data read from the rotation parameter table is invalid, and the data read from the coefficient table is used as Xp.

● Line color screen data
Coefficient data can be used not only as a rotation parameter but also as part of the line color screen data at the same time. In this case, the upper 4 bits of the data read from the line color screen table are added to the upper part of the 7-bit data that is part of the coefficient data. Figure 6.6 shows the line color screen data using the coefficient table.

Figure 6.6 Line color screen data using coefficient data

When the rotation parameter mode is specified as mode 0, the line color screen using the coefficient table of rotation parameter A is used. When mode 1 is specified, the line color screen based on the rotation parameter B coefficient table is used. When mode 2 is specified, the line color screen using the coefficient table of the rotation parameter A is used for both the rotation parameter A picture and the rotation parameter B picture. When mode 3 is specified, the line color screen using the rotation parameter A coefficient table is used for the picture using the rotation parameter A, and the line color screen using the rotation parameter B coefficient table is used for the picture using the rotation parameter B. . When RBG1 is displayed, the line color screen using the coefficient table of the rotation parameter A is used for both RBG0 and RBG1.
Please refer to “ 7.1 Line color screen ” for details of the line color screen.


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