User's Manual

Intel® 815 Chipset: Graphics Controller PRM, Rev 1.0
R
228
Dword Bit Description
0 31:29 Client : 03h – Rendering Engine
28:24 3DState24 : 00h
23:22 Reserved: 00h (Additional Blending Stages)
21:20 Update Blending Stage Index : The valid range is 0–2.
19 Current/Accumulator Select Mask : 0 = Do not update; 1 = Update
18 Write result to Current Register or Accumulator Select :
0 = Current Register (default)
1= Accumulator
17 Color Arg1 Mask : 0 = Do not update; 1 = Update
16:14 Color Arg1: Valid values are :
0h = All Ones
1h = Color Factor
2h = Accumulator Color (illegal setting for stage 0)
3h = Iterated Color
4h = Specular Color
5h = Current Color
6h = Texel0 Color
7h = Texel1 Color
13 Replicate Arg1 Alpha to Color Channels:
0 = Do not Replicate Alpha to Color Channels
1 = Replicate Alpha to Color Channels
12 Invert Color Arg1:
0 = Do not Invert Argument
1 = Invert Argument
11 Color Arg2 Mask : 0 = Do not update; 1 = Update
10:8 Color Arg2 : Valid values are :
0h = All Ones
1h = Color Factor
2h = Accumulator Color (illegal setting for stage 0)
3h = Iterated Color
4h = Specular Color
5h = Current Color
6h = Texel0 Color
7h = Texel1 Color
0 7 Replicate Arg2 Alpha to Color Channels:
0 = Do not Replicate Alpha to Color Channels
1 = Replicate Alpha to Color Channels