Debug Operations
The debug operations do not map to any compiler
intrinsics for MMX™ technology or Intel® Streaming SIMD Extensions . They are
provided for debugging programs only. Use of these operations may result in
loss of performance, so you should not use them outside of debugging.
Output Operations
The two single, double-precision floating-point
values of
A
are placed in the
output buffer and printed in decimal format as follows:
cout
<< F64vec2 A;
"[1]:A1
[0]:A0"
Corresponding
intrinsics: none
The four, single-precision floating-point values of
A
are placed in the
output buffer and printed in decimal format as follows:
cout
<< F32vec4 A;
"[3]:A3 [2]:A2
[1]:A1 [0]:A0"
Corresponding intrinsics: none
The lowest, single-precision floating-point value
of
A
is placed in the
output buffer and printed.
cout
<< F32vec1 A;
Corresponding intrinsics: none
Element Access Operations
double d =
F64vec2 A[int i]
Read one of the two, double-precision
floating-point values of
A
without modifying
the corresponding floating-point value. Permitted values of
i
are 0 and 1. For
example:
If DEBUG is enabled and
i
is not one of the
permitted values (0 or 1), a diagnostic message is printed and the program
aborts.
double d =
F64vec2 A[1];
Corresponding intrinsics: none
Read one of the four, single-precision
floating-point values of
A
without modifying
the corresponding floating point value. Permitted values of
i
are 0, 1, 2, and 3.
For example:
float f =
F32vec4 A[int i]
If DEBUG is enabled and
i
is not one of the
permitted values (0-3), a diagnostic message is printed and the program aborts.
float f =
F32vec4 A[2];
Corresponding intrinsics: none
Element Assignment Operations
F64vec4
A[int i] = double d;
Modify one of the two, double-precision
floating-point values of
A
. Permitted values of
int i
are 0 and 1. For
example:
F32vec4
A[1] = double d;
F32vec4 A[int i] = float f;
Modify one of the four, single-precision
floating-point values of
A
. Permitted values of
int i
are 0, 1, 2, and
3. For example:
If DEBUG is enabled and
int i
is not one of
the permitted values (0-3), a diagnostic message is printed and the program
aborts.
F32vec4
A[3] = float f;
Corresponding intrinsics: none.