109 lines
5.8 KiB
Plaintext
109 lines
5.8 KiB
Plaintext
Field Name Bits Default Description
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RGB_SEL_A 1:0 0x0 Specifies the operands for RGB inputs A and B.
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POSSIBLE VALUES:
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00 - src0
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01 - src1
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02 - src2
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03 - srcp
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RED_SWIZ_A 4:2 0x0 Specifies, per channel, the sources for RGB inputs A and B.
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POSSIBLE VALUES:
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00 - Red
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01 - Green
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02 - Blue
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03 - Alpha
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04 - Zero
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05 - Half
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06 - One
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07 - Unused
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GREEN_SWIZ_A 7:5 0x0 Specifies, per channel, the sources for RGB inputs A and B.
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POSSIBLE VALUES:
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00 - Red
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01 - Green
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02 - Blue
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03 - Alpha
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04 - Zero
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05 - Half
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06 - One
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07 - Unused
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BLUE_SWIZ_A 10:8 0x0 Specifies, per channel, the sources for RGB inputs A and B.
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POSSIBLE VALUES:
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00 - Red
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01 - Green
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02 - Blue
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03 - Alpha
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04 - Zero
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05 - Half
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06 - One
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07 - Unused
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RGB_MOD_A 12:11 0x0 Specifies the input modifiers for RGB inputs A and B.
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POSSIBLE VALUES:
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00 - NOP: Do not modify input
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01 - NEG: Negate input
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02 - ABS: Take absolute value of input
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03 - NAB: Take negative absolute value of input
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RGB_SEL_B 14:13 0x0 Specifies the operands for RGB inputs A and B.
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POSSIBLE VALUES:
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00 - src0
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01 - src1
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02 - src2
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03 - srcp
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RED_SWIZ_B 17:15 0x0 Specifies, per channel, the sources for RGB inputs A and B.
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POSSIBLE VALUES:
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00 - Red
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01 - Green
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02 - Blue
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03 - Alpha
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04 - Zero
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05 - Half
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06 - One
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07 - Unused
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GREEN_SWIZ_B 20:18 0x0 Specifies, per channel, the sources for RGB inputs A and B.
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POSSIBLE VALUES:
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00 - Red
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01 - Green
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02 - Blue
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03 - Alpha
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04 - Zero
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05 - Half
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06 - One
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07 - Unused
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BLUE_SWIZ_B 23:21 0x0 Specifies, per channel, the sources for RGB inputs A and B.
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POSSIBLE VALUES:
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00 - Red
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01 - Green
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02 - Blue
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03 - Alpha
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04 - Zero
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05 - Half
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06 - One
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07 - Unused
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RGB_MOD_B 25:24 0x0 Specifies the input modifiers for RGB inputs A and B.
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POSSIBLE VALUES:
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00 - NOP: Do not modify input
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01 - NEG: Negate input
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02 - ABS: Take absolute value of input
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03 - NAB: Take negative absolute value of input
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OMOD 28:26 0x0 Specifies the output modifier for this instruction.
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POSSIBLE VALUES:
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00 - Result * 1
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01 - Result * 2
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02 - Result * 4
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03 - Result * 8
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04 - Result / 2
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05 - Result / 4
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06 - Result / 8
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07 - Disable output modifier and clamping (result is copied exactly; only valid for MIN/MAX/CMP/CND)
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TARGET 30:29 0x0 This specifies which (cached) frame buffer target to write
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to. For non-output ALU instructions, this specifies how
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to compare the results against zero when setting the
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predicate bits.
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POSSIBLE VALUES:
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00 - A: Output to render target A. Predicate == (ALU)
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01 - B: Output to render target B. Predicate < (ALU)
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02 - C: Output to render target C. Predicate >= (ALU)
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03 - D: Output to render target D. Predicate != (ALU)
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ALU_WMASK 31 0x0 Specifies whether to update the current ALU result.
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POSSIBLE VALUES:
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00 - Do not modify the current ALU result.
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01 - Modify the current ALU result based on the settings of ALU_RESULT_SEL and ALU_RESULT_OP.
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