diff options
| author | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2017-09-15 16:51:14 +0200 |
|---|---|---|
| committer | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2017-09-29 12:08:01 +0200 |
| commit | cad959d90145226c1ef8314c6f6cc1f7094bd572 (patch) | |
| tree | 9eb78107d9fea674a12c3f10b5940fcedd51029b /src/gallium/docs | |
| parent | 2b0bfc51de148147b7a822bb022a7ee2a1c2a28f (diff) | |
gallium: add LDEXP TGSI instruction and corresponding cap
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Diffstat (limited to 'src/gallium/docs')
| -rw-r--r-- | src/gallium/docs/source/screen.rst | 1 | ||||
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 12 |
2 files changed, 13 insertions, 0 deletions
diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst index f344354e33c..553b8e661a4 100644 --- a/src/gallium/docs/source/screen.rst +++ b/src/gallium/docs/source/screen.rst @@ -485,6 +485,7 @@ MOV OUT[0], CONST[0][3] # copy vector 3 of constbuf 0 is supported. If it is, DTRUNC/DCEIL/DFLR/DROUND opcodes may be used. * ``PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED``: Whether DFRACEXP and DLDEXP are supported. +* ``PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED``: Whether LDEXP is supported. * ``PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED``: Whether FMA and DFMA (doubles only) are supported. * ``PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE``: Whether the driver doesn't diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index fd78c40ba3c..274646703b4 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -351,6 +351,18 @@ This instruction replicates its result. dst = src0.x^{src1.x} +.. opcode:: LDEXP - Multiply Number by Integral Power of 2 + +src1 is an integer. + +.. math:: + + dst.x = src0.x * 2^{src1.x} + dst.y = src0.y * 2^{src1.y} + dst.z = src0.z * 2^{src1.z} + dst.w = src0.w * 2^{src1.w} + + .. opcode:: COS - Cosine This instruction replicates its result. |