start on SIMD documentation

[Robert Jacques]

On Fri, 13 Jan 2012 13:06:28 -0600, Peter Alexander <peter.alexander.au at gmail.com> wrote:
> On 13/01/12 8:39 AM, Walter Bright wrote:
[snip]

> Also, slight bikeshedding issue: I'm not so sure on using names like
> int4 for vectors. You see things like int32 a lot to mean a 32-bit
> integer, or int8 to mean an 8-bit integer. Using this notation for
> vectors may be confusing.
>
> As for what to change it to, I don't really care. int4v, vec_int4,
> int_vector4, anything. It doesn't matter.

Well, in my experience (graphics/GPU), float4 is the standard nomenclature.