[Mesa-dev] [PATCH] gallium/docs: fix docs wrt ARL/ARR/FLR

[Alex Deucher]

On Thu, Jan 29, 2015 at 2:40 PM,  <sroland at vmware.com> wrote:
> From: Roland Scheidegger <sroland at vmware.com>
>
> since the address reg holds integer values, ARL/ARR do an implicit float-to-int
> conversion, so clarify that. Thus it is also incorrect to say that FLR really
> does the same as ARL.

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  src/gallium/docs/source/tgsi.rst | 18 ++++++++----------
>  1 file changed, 8 insertions(+), 10 deletions(-)
>
> diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst
> index ff322e8..84b0ed6 100644
> --- a/src/gallium/docs/source/tgsi.rst
> +++ b/src/gallium/docs/source/tgsi.rst
> @@ -48,13 +48,13 @@ used.
>
>  .. math::
>
> -  dst.x = \lfloor src.x\rfloor
> +  dst.x = (int) \lfloor src.x\rfloor
>
> -  dst.y = \lfloor src.y\rfloor
> +  dst.y = (int) \lfloor src.y\rfloor
>
> -  dst.z = \lfloor src.z\rfloor
> +  dst.z = (int) \lfloor src.z\rfloor
>
> -  dst.w = \lfloor src.w\rfloor
> +  dst.w = (int) \lfloor src.w\rfloor
>
>
>  .. opcode:: MOV - Move
> @@ -313,8 +313,6 @@ This instruction replicates its result.
>
>  .. opcode:: FLR - Floor
>
> -This is identical to :opcode:`ARL`.
> -
>  .. math::
>
>    dst.x = \lfloor src.x\rfloor
> @@ -637,13 +635,13 @@ This instruction replicates its result.
>
>  .. math::
>
> -  dst.x = round(src.x)
> +  dst.x = (int) round(src.x)
>
> -  dst.y = round(src.y)
> +  dst.y = (int) round(src.y)
>
> -  dst.z = round(src.z)
> +  dst.z = (int) round(src.z)
>
> -  dst.w = round(src.w)
> +  dst.w = (int) round(src.w)
>
>
>  .. opcode:: SSG - Set Sign
> --
> 1.9.1
>
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