Volume 3: Instruction Reference
3:209
pmax
pmax — Parallel Maximum
Format:
(
qp
) pmax1.u
r
1
=
r
2
,
r
3
one_byte_form
(
qp
) pmax2
r
1
=
r
2
,
r
3
two_byte_form
Description:
The maximum of the two source operands is placed in the result register. In the
one_byte_form, each unsigned 8-bit element of GR
r
2
is compared with the
corresponding unsigned 8-bit element of GR
r
3
and the greater of the two is placed in
the corresponding 8-bit element of GR
r
1
. In the two_byte_form, each signed 16-bit
element of GR
r
2
is compared with the corresponding signed 16-bit element of GR
r
3
and
the greater of the two is placed in the corresponding 16-bit element of GR
r
1
.
Figure 2-34. Parallel Maximum Examples
GR r
2
:
GR r
1
:
GR r
3
:
<
<
<
<
pmax2
True
False
True
True
GR r
2
:
GR r
1
:
GR r
3
:
<
pmax1.u
T
<
F
<
T
<
T
<
F
<
F
<
F
<
T
Содержание Itanium 9150M
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Страница 209: ...3 200 Volume 3 Instruction Reference padd Interruptions Illegal Operation fault...
Страница 301: ...3 292 Volume 3 Pseudo Code Functions Intel Itanium Architecture Software Developer s Manual Rev 2 3...
Страница 405: ...3 396 Volume 3 Resource and Dependency Semantics...
Страница 406: ...3 397 Intel Itanium Architecture Software Developer s Manual Rev 2 3 Index...
Страница 407: ...3 398 Intel Itanium Architecture Software Developer s Manual Rev 2 3...
Страница 419: ...INDEX Index 12 Index for Volumes 1 2 3 and 4...
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