Intel Itanium 9150M, Manual

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Volume 3: Instruction Reference 3:83
fmix
fmix — Floating-point Mix
Format: (
qp
) fmix.l
f
1
=
f
2
,
f
3
mix_l_form F9
(
qp
) fmix.r
f
1
=
f
2
,
f
3
mix_r_form F9
(
qp
) fmix.lr
f
1
=
f
2
,
f
3
mix_lr_form F9
Description:
For the mix_l_form (mix_r_form), the left (right) single precision value in FR
f
2
is
concatenated with the left (right) single precision value in FR
f
3
. For the mix_lr_form,
the left single precision value in FR
f
2
is concatenated with the right single precision
value in FR
f
3
.
For all forms, the exponent field of FR
f
1
is set to the biased exponent for 2.0
63
(0x1003E) and the sign field of FR
f
1
is set to positive (0).
For all forms, if either FR
f
2
or FR
f
3
is a NaTVal, FR
f
1
is set to NaTVal instead of the
computed result.
Figure 2-11. Floating-point Mix Left
Figure 2-12. Floating-point Mix Right
Figure 2-13. Floating-point Mix Left-Right
81 0 80 64 63 81 0 80 64 63
81 0 80 64 63
FR
f
2
FR
f
3
FR
f
1
31 32
0
1003E
32 31
32 31
81 0 80 64 63 81 0 80 64 63
81 0 80 64 63
FR
f
2
FR
f
3
FR
f
1
31 32
0
1003E
32 31
32 31
81 0 80 64 63 81 0 80 64 63
81 0 80 64 63
FR
f
2
FR
f
3
FR
f
1
31 32
0
1003E
32 31
32 31