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TVP4020
Programmers Reference Manual
Graphics Register Reference
261
Name:
Vertex 0 data
Unit:
Delta
Region: 0
Offset:
0x0000.9080, 0x0000.90F8
Tag:
0x00210, 0x0021F
Reset Value:
Undefined
Read/write
0
8
16
24
31
32 bit value
Data for vertex 1. The following table shows the valid entries:
Offset
Category
Parameter
Fixed Point
Format
0
s
2.30 s
1
1
Texture
t
2.30 s
2
q
2.30 s
3
Ks
2.22 us
4
Kd
2.22 us
5
red
1.30 us
6
green
1.30 us
7
Color
blue
1.30 us
8
alpha
1.30 us
9
Fog
f
10.22 us
10
x
16.16 s
11
Coordinate
y
16.16 s
12
z
1.30 us
13
Reserved
Reserved
14
PackedColor
PackedColor
8888
1
This is the range when Normalise is not used. When Normalise is enabled the fixed point
format can be anything, providing it is the same for the s, t and q parameters. The
numbers will be interpreted as if they had 2.30 format for the purpose of conversion to
floating point. If the fixed point format (2.30) is different from what the user had in mind
then the input values are just pre-scaled by a fixed amount (i.e. the difference in binary
point positions) prior to conversion.
V1Fixed[0..15]
Summary of Contents for TVP4020 PERMEDIA 2
Page 1: ...Texas Instruments TVP4020 PERMEDIA 2 Programmer s Reference Manual Issue 4 ...
Page 284: ...TVP4020 Programmers Reference Manual A Gouraud Shaded Triangle 275 ...
Page 292: ...TVP4020 Programmers Reference Manual Register Tables 283 ...
Page 314: ...TVP4020 Programmers Reference Manual Index 305 ...
Page 315: ...Index TVP4020 Programmers Reference Manual 306 Index ...
Page 323: ...Index TVP4020 Programmers Reference Manual 314 ...