Intel 815 manual 3DState24 00h, Update Blending Stage Index The valid range is, Invert Color Arg1

Intel® 815 Chipset: Graphics Controller PRM, Rev 1.0

R

Dword Bit Description

031:29 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

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