diff options
author | Igor Oliveira <[email protected]> | 2010-01-25 19:23:04 -0400 |
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committer | Brian Paul <[email protected]> | 2010-01-26 17:18:44 -0700 |
commit | db89bf40025805165bbc34ac7a6610f9468d8749 (patch) | |
tree | 8340b7208349850b7460d47f32f110d6baa37e49 /src/gallium/docs/source/tgsi.rst | |
parent | ab53f710151d920286d0c92f93262fb468008051 (diff) |
docs: add documentation to double opcodes
Signed-off-by: Brian Paul <[email protected]>
Diffstat (limited to 'src/gallium/docs/source/tgsi.rst')
-rw-r--r-- | src/gallium/docs/source/tgsi.rst | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 65a669d8cfa..2c34a6bae5e 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -1111,6 +1111,117 @@ BREAKC - Break Conditional TBD +Double Opcodes +^^^^^^^^^^^^^^^ + +DADD - Add Double + +.. math:: + + dst.xy = src0.xy + src1.xy + + dst.zw = src0.zw + src1.zw + + +DDIV - Divide Double + +.. math:: + + dst.xy = src0.xy / src1.xy + + dst.zw = src0.zw / src1.zw + +DSEQ - Set Double on Equal + +.. math:: + + dst.xy = src0.xy == src1.xy ? 1.0F : 0.0F + + dst.zw = src0.zw == src1.zw ? 1.0F : 0.0F + +DSLT - Set Double on Less than + +.. math:: + + dst.xy = src0.xy < src1.xy ? 1.0F : 0.0F + + dst.zw = src0.zw < src1.zw ? 1.0F : 0.0F + +DFRAC - Double Fraction + +.. math:: + + dst.xy = src.xy - \lfloor src.xy\rfloor + + dst.zw = src.zw - \lfloor src.zw\rfloor + + +DFRACEXP - Convert Double Number to Fractional and Integral Components + +.. math:: + + dst0.xy = frexp(src.xy, dst1.xy) + + dst0.zw = frexp(src.zw, dst1.zw) + +DLDEXP - Multiple Double Number by Integral Power of 2 + +.. math:: + + dst.xy = ldexp(src0.xy, src1.xy) + + dst.zw = ldexp(src0.zw, src1.zw) + +DMIN - Minimum Double + +.. math:: + + dst.xy = min(src0.xy, src1.xy) + + dst.zw = min(src0.zw, src1.zw) + +DMAX - Maximum Double + +.. math:: + + dst.xy = max(src0.xy, src1.xy) + + dst.zw = max(src0.zw, src1.zw) + +DMUL - Multiply Double + +.. math:: + + dst.xy = src0.xy \times src1.xy + + dst.zw = src0.zw \times src1.zw + + +DMAD - Multiply And Add Doubles + +.. math:: + + dst.xy = src0.xy \times src1.xy + src2.xy + + dst.zw = src0.zw \times src1.zw + src2.zw + + +DRCP - Reciprocal Double + +.. math:: + + dst.xy = \frac{1}{src.xy} + + dst.zw = \frac{1}{src.zw} + +DSQRT - Square root double + +.. math:: + + dst.xy = \sqrt{src.xy} + + dst.zw = \sqrt{src.zw} + Explanation of symbols used ------------------------------ |