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Changes through vec_extract_exp.

Browse Source 
Signed-off-by: Bill Schmidt <wschmidt@linux.ibm.com>
pull/69/head
Bill Schmidt 7 years ago
parent 0913542a05
commit 662f552fbf
1 changed files with 593 additions and 55 deletions
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648
Intrinsics_Reference/ch_vec_reference.xml
Unescape Escape View File

@ -5224,34 +5224,41 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
role="bold">a</emphasis>.
</para>
<para><emphasis role="bold">Endian considerations:</emphasis>
None.
Differences in element numbering require different implementations
for big- and little-endian code generation.
</para>
<table frame="all">
<title>Supported type signatures for vec_doublee</title>
<tgroup cols="4">
<tgroup cols="5">
<colspec colname="c1" colwidth="20*" />
<colspec colname="c2" colwidth="20*" />
<colspec colname="c3" colwidth="20*" />
<colspec colname="c4" colwidth="20*" />
<colspec colname="c5" colwidth="20*" />
<thead>
<row>
<entry align="center">
<entry align="center" valign="middle">
<para>
<emphasis role="bold">r</emphasis>
</para>
</entry>
<entry align="center">
<entry align="center" valign="middle">
<para>
<emphasis role="bold">a</emphasis>
</para>
</entry>
<entry align="center">
<para>
<emphasis role="bold">Example Implementation</emphasis>
<emphasis role="bold">Example LE Implementation</emphasis>
</para>
</entry>
<entry align="center">
<para>
<emphasis role="bold">Example BE Implementation</emphasis>
</para>
</entry>
<entry align="center" valign="middle">
<para>
<emphasis role="bold">Restrictions</emphasis>
</para>
@ -5268,7 +5275,14 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
[TBD]
xxsldwi t,a,a,1
xvcvsxwdp r,t
</programlisting>
</entry>
<entry>
<programlisting>
xvcvsxwdp r,a

</programlisting>
</entry>
<entry align="center" valign="middle">
@ -5284,7 +5298,14 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
[TBD]
xxsldwi t,a,a,1
xvcvuxwdp r,t
</programlisting>
</entry>
<entry>
<programlisting>
xvcvuxwdp r,a

</programlisting>
</entry>
<entry align="center" valign="middle">
@ -5300,7 +5321,14 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
[TBD]
xxsldwi t,a,a,1
xvcvspdp r,t
</programlisting>
</entry>
<entry>
<programlisting>
xvcvspdp r,a

</programlisting>
</entry>
<entry align="center" valign="middle">
@ -5331,34 +5359,41 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
role="bold">a</emphasis>.
</para>
<para><emphasis role="bold">Endian considerations:</emphasis>
None.
Differences in element numbering require different implementations
for big- and little-endian code generation.
</para>
<table frame="all">
<title>Supported type signatures for vec_doubleh</title>
<tgroup cols="4">
<tgroup cols="5">
<colspec colname="c1" colwidth="20*" />
<colspec colname="c2" colwidth="20*" />
<colspec colname="c3" colwidth="20*" />
<colspec colname="c4" colwidth="20*" />
<colspec colname="c5" colwidth="20*" />
<thead>
<row>
<entry align="center">
<entry align="center" valign="middle">
<para>
<emphasis role="bold">r</emphasis>
</para>
</entry>
<entry align="center">
<entry align="center" valign="middle">
<para>
<emphasis role="bold">a</emphasis>
</para>
</entry>
<entry align="center">
<para>
<emphasis role="bold">Example Implementation</emphasis>
<emphasis role="bold">Example LE Implementation</emphasis>
</para>
</entry>
<entry align="center">
<para>
<emphasis role="bold">Example BE Implementation</emphasis>
</para>
</entry>
<entry align="center" valign="middle">
<para>
<emphasis role="bold">Restrictions</emphasis>
</para>
@ -5375,7 +5410,16 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
[TBD]
xxsldwi t,a,a,3
xxsldwi u,a,t,2
xvcvsxwdp r,u
</programlisting>
</entry>
<entry>
<programlisting>
xxsldwi t,a,a,1
xxsldwi u,t,a,3
xvcvsxwdp r,u
</programlisting>
</entry>
<entry align="center" valign="middle">
@ -5391,7 +5435,16 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
[TBD]
xxsldwi t,a,a,3
xxsldwi u,a,t,2
xvcvuxwdp r,u
</programlisting>
</entry>
<entry>
<programlisting>
xxsldwi t,a,a,1
xxsldwi u,t,a,3
xvcvuxwdp r,u
</programlisting>
</entry>
<entry align="center" valign="middle">
@ -5407,7 +5460,16 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
[TBD]
xxsldwi t,a,a,3
xxsldwi u,a,t,2
xvcvspdp r,u
</programlisting>
</entry>
<entry>
<programlisting>
xxsldwi t,a,a,1
xxsldwi u,t,a,3
xvcvspdp r,u
</programlisting>
</entry>
<entry align="center" valign="middle">
@ -5438,34 +5500,41 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
role="bold">a</emphasis>.
</para>
<para><emphasis role="bold">Endian considerations:</emphasis>
None.
Differences in element numbering require different implementations
for big- and little-endian code generation.
</para>
<table frame="all">
<title>Supported type signatures for vec_doublel</title>
<tgroup cols="4">
<tgroup cols="5">
<colspec colname="c1" colwidth="20*" />
<colspec colname="c2" colwidth="20*" />
<colspec colname="c3" colwidth="20*" />
<colspec colname="c4" colwidth="20*" />
<colspec colname="c5" colwidth="20*" />
<thead>
<row>
<entry align="center">
<entry align="center" valign="middle">
<para>
<emphasis role="bold">r</emphasis>
</para>
</entry>
<entry align="center">
<entry align="center" valign="middle">
<para>
<emphasis role="bold">a</emphasis>
</para>
</entry>
<entry align="center">
<para>
<emphasis role="bold">Example Implementation</emphasis>
<emphasis role="bold">Example LE Implementation</emphasis>
</para>
</entry>
<entry align="center">
<para>
<emphasis role="bold">Example BE Implementation</emphasis>
</para>
</entry>
<entry align="center" valign="middle">
<para>
<emphasis role="bold">Restrictions</emphasis>
</para>
@ -5482,7 +5551,16 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
[TBD]
xxsldwi t,a,a,1
xxsldwi u,t,a,3
xvcvsxwdp r,u
</programlisting>
</entry>
<entry>
<programlisting>
xxsldwi t,a,a,3
xxsldwi u,a,t,2
xvcvsxwdp r,u
</programlisting>
</entry>
<entry align="center" valign="middle">
@ -5498,7 +5576,16 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
[TBD]
xxsldwi t,a,a,1
xxsldwi u,t,a,3
xvcvuxwdp r,u
</programlisting>
</entry>
<entry>
<programlisting>
xxsldwi t,a,a,3
xxsldwi u,a,t,2
xvcvuxwdp r,u
</programlisting>
</entry>
<entry align="center" valign="middle">
@ -5514,7 +5601,16 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
[TBD]
xxsldwi t,a,a,1
xxsldwi u,t,a,3
xvcvspdp r,u
</programlisting>
</entry>
<entry>
<programlisting>
xxsldwi t,a,a,3
xxsldwi u,a,t,2
xvcvspdp r,u
</programlisting>
</entry>
<entry align="center" valign="middle">
@ -5545,34 +5641,41 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
role="bold">a</emphasis>.
</para>
<para><emphasis role="bold">Endian considerations:</emphasis>
None.
Differences in element numbering require different implementations
for big- and little-endian code generation.
</para>
<table frame="all">
<title>Supported type signatures for vec_doubleo</title>
<tgroup cols="4">
<tgroup cols="5">
<colspec colname="c1" colwidth="20*" />
<colspec colname="c2" colwidth="20*" />
<colspec colname="c3" colwidth="20*" />
<colspec colname="c4" colwidth="20*" />
<colspec colname="c5" colwidth="20*" />
<thead>
<row>
<entry align="center">
<entry align="center" valign="middle">
<para>
<emphasis role="bold">r</emphasis>
</para>
</entry>
<entry align="center">
<entry align="center" valign="middle">
<para>
<emphasis role="bold">a</emphasis>
</para>
</entry>
<entry align="center">
<para>
<emphasis role="bold">Example Implementation</emphasis>
<emphasis role="bold">Example LE Implementation</emphasis>
</para>
</entry>
<entry align="center">
<para>
<emphasis role="bold">Example BE Implementation</emphasis>
</para>
</entry>
<entry align="center" valign="middle">
<para>
<emphasis role="bold">Restrictions</emphasis>
</para>
@ -5589,7 +5692,14 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
[TBD]
xvcvsxwdp r,a

</programlisting>
</entry>
<entry>
<programlisting>
xxsldwi t,a,a,1
xvcvsxwdp r,t
</programlisting>
</entry>
<entry align="center" valign="middle">
@ -5605,7 +5715,14 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
[TBD]
xvcvuxwdp r,a

</programlisting>
</entry>
<entry>
<programlisting>
xxsldwi t,a,a,1
xvcvuxwdp r,t
</programlisting>
</entry>
<entry align="center" valign="middle">
@ -5621,7 +5738,14 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
[TBD]
xvcvspdp r,a

</programlisting>
</entry>
<entry>
<programlisting>
xxsldwi t,a,a,1
xvcvspdp r,t
</programlisting>
</entry>
<entry align="center" valign="middle">
@ -6005,40 +6129,52 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
The element numbering within a register is left-to-right for big-endian
targets, and right-to-left for little-endian targets.
</para>
<para><emphasis role="bold">Notes:</emphasis>
Prior to ISA 3.0, less efficient code sequences must be used to
implement vec_extract.
</para>
<table frame="all">
<title>Supported type signatures for vec_extract</title>
<tgroup cols="5">
<tgroup cols="6">
<colspec colname="c1" colwidth="20*" />
<colspec colname="c2" colwidth="20*" />
<colspec colname="c3" colwidth="20*" />
<colspec colname="c4" colwidth="20*" />
<colspec colname="c5" colwidth="20*" />
<colspec colname="c3" colwidth="18*" />
<colspec colname="c4" colwidth="21*" />
<colspec colname="c5" colwidth="21*" />
<colspec colname="c6" colwidth="18*" />
<thead>
<row>
<entry align="center">
<entry align="center" valign="middle">
<para>
<emphasis role="bold">r</emphasis>
</para>
</entry>
<entry align="center">
<entry align="center" valign="middle">
<para>
<emphasis role="bold">a</emphasis>
</para>
</entry>
<entry align="center">
<entry align="center" valign="middle">
<para>
<emphasis role="bold">b</emphasis>
</para>
</entry>
<entry align="center">
<para>
<emphasis role="bold">Example LE Implementation</emphasis>
<emphasis role="bold">Example ISA 3.0 LE
Implementation</emphasis>
</para>
</entry>
<entry align="center">
<para>
<emphasis role="bold">Example BE Implementation</emphasis>
<emphasis role="bold">Example ISA 3.0 BE
Implementation</emphasis>
</para>
</entry>
<entry align="center" valign="middle">
<para>
<emphasis role="bold">Restrictions</emphasis>
</para>
</entry>
</row>
@ -6056,14 +6192,408 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry>
<programlisting>
vexptefp r,a
vextubrx t,b,a
extsb r,t
</programlisting>
</entry>
<entry>
<programlisting>
vexptefp r,a
vextublx t,b,a
extsb r,t
</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>unsigned char</para>
</entry>
<entry align="center" valign="middle">
<para>vector bool char</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
vextubrx t,b,a
</programlisting>
</entry>
<entry>
<programlisting>
vextublx t,b,a
</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>unsigned char</para>
</entry>
<entry align="center" valign="middle">
<para>vector unsigned char</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
vextubrx t,b,a
</programlisting>
</entry>
<entry>
<programlisting>
vextublx t,b,a
</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>signed int</para>
</entry>
<entry align="center" valign="middle">
<para>vector signed int</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
slwi t,b,2
vextuwrx u,t,a
extsw r,u
</programlisting>
</entry>
<entry>
<programlisting>
slwi t,b,2
vextuwlx u,t,a
extsw r,u
</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>unsigned int</para>
</entry>
<entry align="center" valign="middle">
<para>vector bool int</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
slwi t,b,2
vextuwrx r,t,a
</programlisting>
</entry>
<entry>
<programlisting>
slwi t,b,2
vextuwlx r,t,a
</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>unsigned int</para>
</entry>
<entry align="center" valign="middle">
<para>vector unsigned int</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
slwi t,b,2
vextuwrx r,t,a
</programlisting>
</entry>
<entry>
<programlisting>
slwi t,b,2
vextuwlx r,t,a
</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>signed long long</para>
</entry>
<entry align="center" valign="middle">
<para>vector signed long long</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
xori t,b,0x1
rldic u,t,6,57
mtvsrdd v,u,u
vslo w,a,v
mfvsrd r,w
</programlisting>
</entry>
<entry>
<programlisting>
rldic t,b,6,57
mtvsrdd u,t,t
vslo v,a,u
mfvsrd r,v

</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>unsigned long long</para>
</entry>
<entry align="center" valign="middle">
<para>vector bool long long</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
xori t,b,0x1
rldic u,t,6,57
mtvsrdd v,u,u
vslo w,a,v
mfvsrd r,w
</programlisting>
</entry>
<entry>
<programlisting>
rldic t,b,6,57
mtvsrdd u,t,t
vslo v,a,u
mfvsrd r,v

</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>unsigned long long</para>
</entry>
<entry align="center" valign="middle">
<para>vector unsigned long long</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
xori t,b,0x1
rldic u,t,6,57
mtvsrdd v,u,u
vslo w,a,v
mfvsrd r,w
</programlisting>
</entry>
<entry>
<programlisting>
rldic t,b,6,57
mtvsrdd u,t,t
vslo v,a,u
mfvsrd r,v

</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>signed short</para>
</entry>
<entry align="center" valign="middle">
<para>vector signed short</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
slwi t,b,1
vextuhrx u,t,a
extsh r,u
</programlisting>
</entry>
<entry>
<programlisting>
slwi t,b,1
vextuhlx u,t,a
extsh r,u
</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>unsigned short</para>
</entry>
<entry align="center" valign="middle">
<para>vector bool short</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
slwi t,b,1
vextuhrx r,t,a
</programlisting>
</entry>
<entry>
<programlisting>
slwi t,b,1
vextuhlx r,t,a
</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>unsigned short</para>
</entry>
<entry align="center" valign="middle">
<para>vector unsigned short</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
slwi t,b,1
vextuhrx r,t,a
</programlisting>
</entry>
<entry>
<programlisting>
slwi t,b,1
vextuhlx r,t,a
</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>double</para>
</entry>
<entry align="center" valign="middle">
<para>vector double</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
xori t,b,0x1
rldic u,t,6,57
mtvsrdd v,u,u
vslo r,a,v
</programlisting>
</entry>
<entry>
<programlisting>
rldic t,b,6,57
mtvsrdd u,t,t
vslo r,a,u

</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>float</para>
</entry>
<entry align="center" valign="middle">
<para>vector float</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry>
<programlisting>
rldicl t,b,0,62
subfic u,t,3
sldi v,u,5
mtvsrdd w,v,v
vslo x,a,w
xscvspdp r,x
</programlisting>
</entry>
<entry>
<programlisting>

sldi t,b,5
mtvsrdd u,t,t
vslo v,a,u
xscvspdp r,v

</programlisting>
</entry>
<entry>
<para></para>
</entry>
</row>
<row>
<entry align="center" valign="middle">
<para>_Float16</para>
</entry>
<entry align="center" valign="middle">
<para>vector _Float16</para>
</entry>
<entry align="center" valign="middle">
<para> signed int</para>
</entry>
<entry align="center" valign="middle">
<para>Not yet available</para>
</entry>
<entry align="center" valign="middle">
<para>Not yet available</para>
</entry>
<entry align="center">
<para>ISA 3.0 or later</para>
<para>Phased in</para>
</entry>
</row>
</tbody>
</tgroup>
@ -6074,19 +6604,23 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">

<simplesect xml:id="vec_extract_exp">
<title>vec_extract_exp</title>
<subtitle>Vector ... Spelled Out Name TBD</subtitle>
<subtitle>Vector Extract Exponent</subtitle>
<programlisting>
r = vec_extract_exp (ARG1)
r = vec_extract_exp (a)
</programlisting>

<para><emphasis role="bold">Purpose:</emphasis>
Extracts an exponent from a floating-point number.
</para>
<para><emphasis role="bold">Result value: </emphasis>Each element of the returned integer vector is extracted from the exponent field of the corresponding floating-point vector element.</para>
<para>The extracted exponents of ARG1 are returned as
right-justified unsigned integers containing biased exponents, in
accordance with the exponent representation specified by IEEE
754, without further processing.</para>
<para><emphasis role="bold">Result value: </emphasis>
Each element of <emphasis role="bold">r</emphasis> is extracted
from the exponent field of the corresponding floating-point
vector element of <emphasis role="bold">a</emphasis>.
</para>
<para>The extracted exponents of <emphasis role="bold">a</emphasis>
are returned as right-justified unsigned integers containing biased
exponents, in accordance with the exponent representation specified
by IEEE 754, without further processing.</para>
<para><emphasis role="bold">Endian considerations:</emphasis>
None.
</para>
@ -6107,7 +6641,7 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
</entry>
<entry align="center">
<para>
<emphasis role="bold">ARG1</emphasis>
<emphasis role="bold">a</emphasis>
</para>
</entry>
<entry align="center">
@ -6127,9 +6661,11 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
<para>vector double</para>
</entry>
<entry>
<programlisting>sample implementation TBD</programlisting>
<programlisting>
xvxexpdp r,a
</programlisting>
</entry>
<entry>
<entry align="center" valign="middle">
<para>ISA 3.0 or later</para>
</entry>
</row>
@ -6141,9 +6677,11 @@ xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="section_vec_intrinsics">
<para>vector float</para>
</entry>
<entry>
<programlisting>sample implementation TBD</programlisting>
<programlisting>
xvxexpsp r,a
</programlisting>
</entry>
<entry>
<entry align="center" valign="middle">
<para>ISA 3.0 or later</para>
</entry>
</row>

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