Graphics Register Reference
TVP4020
Programmers Reference Manual
194
Name:
Delta X Dominant
Unit:
Rasterizer
Region: 0
Offset:
0x0000.8008
Tag:
0x0001
Reset Value:
Undefined
Read/write
0
8
16
24
31
Not used
Sign
15 bit fraction
11 bit integer
Not used
Value added when moving from one scanline to the next for the dominant edge in
trapezoid filling. The value is in 2's complement 12.15 fixed point format.
Also holds the change in X when plotting lines. For Y major lines this will be some fraction
(dx/dy), otherwise it is normally ± 1.0, depending on the required scanning direction.
Name:
Delta X Subordinate
Unit:
Rasterizer
Region: 0
Offset:
0x0000.8018
Tag:
0x0003
Reset Value:
Undefined
Read/write
0
8
16
24
31
Not used
Sign
15 bit fraction
11 bit integer
Not used
Value added when moving from one scanline to the next for the subordinate edge in
trapezoid filling. The value is in 2's complement 12.15 fixed point format.
dXDom
dXSub
Содержание TVP4020 PERMEDIA 2
Страница 1: ...Texas Instruments TVP4020 PERMEDIA 2 Programmer s Reference Manual Issue 4 ...
Страница 47: ...Memory I O and Organization TVP4020 Programmers Reference Manual 38 Texture address TextureBaseAddress T W S ...
Страница 284: ...TVP4020 Programmers Reference Manual A Gouraud Shaded Triangle 275 ...
Страница 292: ...TVP4020 Programmers Reference Manual Register Tables 283 ...
Страница 314: ...TVP4020 Programmers Reference Manual Index 305 ...
Страница 315: ...Index TVP4020 Programmers Reference Manual 306 Index ...
Страница 323: ...Index TVP4020 Programmers Reference Manual 314 ...