diff options
Diffstat (limited to 'src/gallium/docs/source/tgsi.rst')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 0557ce0f94b..8506b7e0309 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -1254,41 +1254,47 @@ Support for these opcodes indicated by PIPE_SHADER_CAP_INTEGERS (all of them?) .. opcode:: SHL - Shift Left + The shift count is masked with 0x1f before the shift is applied. + .. math:: - dst.x = src0.x << src1.x + dst.x = src0.x << (0x1f & src1.x) - dst.y = src0.y << src1.x + dst.y = src0.y << (0x1f & src1.y) - dst.z = src0.z << src1.x + dst.z = src0.z << (0x1f & src1.z) - dst.w = src0.w << src1.x + dst.w = src0.w << (0x1f & src1.w) .. opcode:: ISHR - Arithmetic Shift Right (of Signed Integer) + The shift count is masked with 0x1f before the shift is applied. + .. math:: - dst.x = src0.x >> src1.x + dst.x = src0.x >> (0x1f & src1.x) - dst.y = src0.y >> src1.x + dst.y = src0.y >> (0x1f & src1.y) - dst.z = src0.z >> src1.x + dst.z = src0.z >> (0x1f & src1.z) - dst.w = src0.w >> src1.x + dst.w = src0.w >> (0x1f & src1.w) .. opcode:: USHR - Logical Shift Right + The shift count is masked with 0x1f before the shift is applied. + .. math:: - dst.x = src0.x >> (unsigned) src1.x + dst.x = src0.x >> (unsigned) (0x1f & src1.x) - dst.y = src0.y >> (unsigned) src1.x + dst.y = src0.y >> (unsigned) (0x1f & src1.y) - dst.z = src0.z >> (unsigned) src1.x + dst.z = src0.z >> (unsigned) (0x1f & src1.z) - dst.w = src0.w >> (unsigned) src1.x + dst.w = src0.w >> (unsigned) (0x1f & src1.w) .. opcode:: UCMP - Integer Conditional Move |