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Diffstat (limited to 'src/gallium/docs/source/tgsi.rst')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 41f2798d704..f80c08d3175 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -1103,6 +1103,36 @@ Support for these opcodes indicated by PIPE_SHADER_CAP_INTEGERS (all of them?) dst.w = src0.w \times src1.w +.. opcode:: IMUL_HI - Signed Integer Multiply High Bits + + The high 32bits of the multiplication of 2 signed integers are returned. + +.. math:: + + dst.x = (src0.x \times src1.x) >> 32 + + dst.y = (src0.y \times src1.y) >> 32 + + dst.z = (src0.z \times src1.z) >> 32 + + dst.w = (src0.w \times src1.w) >> 32 + + +.. opcode:: UMUL_HI - Unsigned Integer Multiply High Bits + + The high 32bits of the multiplication of 2 unsigned integers are returned. + +.. math:: + + dst.x = (src0.x \times src1.x) >> 32 + + dst.y = (src0.y \times src1.y) >> 32 + + dst.z = (src0.z \times src1.z) >> 32 + + dst.w = (src0.w \times src1.w) >> 32 + + .. opcode:: IDIV - Signed Integer Division TBD: behavior for division by zero. |