Visible to Intel only — GUID: GUID-7CC06992-B292-4B88-8801-5B6D365DF4E0
Visible to Intel only — GUID: GUID-7CC06992-B292-4B88-8801-5B6D365DF4E0
Fvec Syntax and Notation
This reference uses the following conventions for syntax and return values.
Fvec Classes Syntax Notation
Fvec classes use the syntax conventions shown the following examples:
[Fvec_Class] R = [Fvec_Class] A [operator][Ivec_Class] B;
Example 1:F64vec2 R = F64vec2 A & F64vec2 B;
[Fvec_Class] R = [operator]([Fvec_Class] A,[Fvec_Class] B);
Example 2:F64vec2 R = andnot(F64vec2 A, F64vec2 B);
[Fvec_Class] R [operator]= [Fvec_Class] A;
Example 3:F64vec2 R &= F64vec2 A;
where
[operator] is an operator (for example, &, |, or ^ )
[Fvec_Class] is any Fvec class ( F64vec2, F32vec4, or F32vec1 )
R, A, B are declared Fvec variables of the type indicated.
Return Value Notation
Because the Fvec classes have packed elements, the return values typically follow the conventions presented in the Return Value Convention Notation Mappings table. F32vec4 returns four single-precision, floating-point values (R0, R1, R2, and R3); F64vec2 returns two double-precision, floating-point values, and F32vec1 returns the lowest single-precision floating-point value (R0).
Return Value Convention Notation Mappings
Example 1: |
Example 2: |
Example 3: |
F32vec4 |
F64vec2 |
F32vec1 |
---|---|---|---|---|---|
R0 := A0 & B0; |
R0 := A0 andnot B0; |
R0 &= A0; |
x |
x |
x |
R1 := A1 & B1; |
R1 := A1 andnot B1; |
R1 &= A1; |
x |
x |
N/A |
R2 := A2 & B2; |
R2 := A2 andnot B2; |
R2 &= A2; |
x |
N/A |
N/A |
R3 := A3 & B3 |
R3 := A3 andhot B3; |
R3 &= A3; |
x |
N/A |
N/A |