Conversion to Docbook based of version 1.2 of the IBM contributed document,

"Power Architecture: 64-bit ELF V2 ABI Specification".

Signed-off-by: Jeff Scheel <scheel@us.ibm.com>
master
Jeff Scheel 8 years ago
parent d2d3872796
commit 1be88b700e

2
.gitignore vendored

@ -0,0 +1,2 @@
*~
*target*

@ -0,0 +1,452 @@

GNU Free Documentation License
Version 1.3, 3 November 2008


Copyright (C) 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
<http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
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If you have Invariant Sections without Cover Texts, or some other
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@ -1,2 +1,92 @@
# ELFv2-ABI
Power Architecture 64-Bit ELF V2 ABI Specification
# Power Architecture 64-Bit ELF V2 ABI Specification
This repository hold the source for the Power Architecture 64-bit ELF Version 2
ABI specification for the OpenPOWER Foundation. The PDF and HTML generated from the specification/
directory build a document that describe the ABI used by Linux on Power systems when
running in little endian mode.

To build this project, one must ensure that the Docs-Master project has
also been cloned at the same directory level as the ELFv2-ABI project.
This can be accomplished with the following steps:

1. Clone the master documentation project (Docs-Master) using the following command:

```
$ git clone https://github.com/OpenPOWERFoundation/Docs-Master.git
```
2. Clone this project (ELFv2-ABI) using the following command:

```
$ git clone https://github.com/OpenPOWERFoundation/ELFv2-ABI.git
```
3. Build the project with these commands:
```
$ cd ELFv2-ABI
$ mvn clean generate-sources
```

The online version of the document can be found in the OpenPOWER Foundation
Document library at [TBD](http://openpowerfoundation.org/?resource_lib=tbd)

The project which control the look and feel of the document is the
[Docs-Maven-Plugin project](https://github.com/OpenPOWERFoundation/Docs-Maven-Plugin).

## License
This project is licensed under the Apache V2 license. More information
can be found in the LICENSE file or online at

http://www.apache.org/licenses/LICENSE-2.0

## Contributions
To contribute to the OpenPOWER Foundation template document project, contact Jeff Scheel \([scheel@us.ibm.com](mailto://scheel@us.ibm.com)\) or
Jeff Brown \([jeffdb@us.ibm.com](mailto://jeffdb@us.ibm.com)\).

Contributions to this project should conform to the `Developer Certificate
of Origin` as defined at http://elinux.org/Developer_Certificate_Of_Origin.
Commits to this project need to contain the following line to indicate
the submitter accepts the DCO:
```
Signed-off-by: Your Name <your_email@domain.com>
```
By contributing in this way, you agree to the terms as follows:
```
Developer Certificate of Origin
Version 1.1

Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
660 York Street, Suite 102,
San Francisco, CA 94110 USA

Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.


Developer's Certificate of Origin 1.1

By making a contribution to this project, I certify that:

(a) The contribution was created in whole or in part by me and I
have the right to submit it under the open source license
indicated in the file; or

(b) The contribution is based upon previous work that, to the best
of my knowledge, is covered under an appropriate open source
license and I have the right under that license to submit that
work with modifications, whether created in whole or in part
by me, under the same open source license (unless I am
permitted to submit under a different license), as indicated
in the file; or

(c) The contribution was provided directly to me by some other
person who certified (a), (b) or (c) and I have not modified
it.

(d) I understand and agree that this project and the contribution
are public and that a record of the contribution (including all
personal information I submit with it, including my sign-off) is
maintained indefinitely and may be redistributed consistent with
this project or the open source license(s) involved.
```



@ -0,0 +1,22 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

<parent>
<groupId>org.openpowerfoundation.docs</groupId>
<artifactId>master-pom</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../Docs-Master/pom.xml</relativePath>
</parent>
<modelVersion>4.0.0</modelVersion>

<artifactId>workgroup-pom</artifactId>
<packaging>pom</packaging>

<modules>
<!-- Add new documents are build in the project, add their directories to this list to
enable all document builds from the top level -->
<module>specification</module>
</modules>
</project>

File diff suppressed because it is too large Load Diff

@ -0,0 +1,851 @@
<appendix xmlns="http://docbook.org/ns/docbook"
xmlns:xl="http://www.w3.org/1999/xlink" version="5.0" xml:lang="en"
xml:id="dbdoclet.50655245_pgfId-1450875">
<title>Binary-Coded Decimal Built-In Functions</title>
<para>Binary-coded decimal (BCD) values are compressed; each decimal digit
and sign bit occupies 4 bits. Digits are ordered right-to-left in the order
of significance. The final 4 bits encode the sign. A valid encoding must
have a value in the range 0 - 9 in each of its 31 digits, and a value in
the range 10 - 15 for the sign field.</para>
<para>Source operands with sign codes of 0b1010, 0b1100, 0b1110, or 0b1111
are interpreted as positive values. Source operands with sign codes of
0b1011 or 0b1101 are interpreted as negative values.</para>
<para>BCD arithmetic operations encode the sign of their result as follows:
A value of 0b1101 indicates a negative value, while 0b1100 and 0b1111
indicate positive values or zero, depending on the value of the positive
sign (PS) bit.</para>
<para>These built-in functions can operate on values of at most 31 digits.
BCD values are stored in memory as contiguous arrays of 1 - 16
bytes.</para>
<note>
<para>BCD built-in functions are valid only when -
<emphasis>march</emphasis> or -
<emphasis>qarch</emphasis> is set to target POWER8 processors or
later.</para>
</note>
<para>
<xref linkend="dbdoclet.50655245_77606" /> summarizes the BCD built-in
functions. Functions are grouped by type. Within type, functions are listed
alphabetically. Prototypes are provided for each function.</para>
<para> </para>
<table frame="all" pgwide="1" xml:id="dbdoclet.50655245_77606">
<title>Binary-Coded Decimal Built-In Functions</title>
<tgroup cols="2">
<colspec colname="c1" colwidth="30*" />
<colspec colname="c2" colwidth="70*" />
<thead>
<row>
<entry align="center">
<para>
<emphasis role="bold">Group</emphasis>
</para>
</entry>
<entry align="center">
<para>
<emphasis role="bold">Description of Binary-Coded Decimal
Built-In Functions (with Prototypes)</emphasis>
</para>
</entry>
</row>
</thead>
<tbody>
<row>
<entry nameend="c2" namest="c1">
<para>
<emphasis role="bold">BCD Add and Subtract</emphasis>
</para>
</entry>
</row>
<row>
<entry>
<para>___BUILTIN_BCDADD (a, b, ps)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Returns the result of the addition of the BCD values a and
b.</para>
<para>The sign of the result is determined as follows:</para>
<itemizedlist>
<listitem>
<para>If the result is a nonnegative value and
<emphasis>ps</emphasis> is 0, the sign is set to 0b1100
(0xC).</para>
</listitem>
<listitem>
<para>If the result is a nonnegative value and
<emphasis>ps</emphasis> is 1, the sign is set to 0b1111
(0xF).</para>
</listitem>
<listitem>
<para>If the result is a negative value, the sign is set to
0b1101 (0xD).</para>
</listitem>
</itemizedlist>
<para>Parameters:</para>
<para>The ps parameter selects the numeric format for the
positive-signed BCD numbers. It must be set to one of the values
defined in
<xref linkend="dbdoclet.50655245_32368" />.</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>vector unsigned char __builtin_bcdadd (vector unsigned
char, vector unsigned char, const int);</para>
</entry>
</row>
<row>
<entry>
<para>__BUILTIN_BCDSUB (a, b, ps)</para>
</entry>
<entry>
<para>Purpose</para>
<para>Returns the result of the subtraction of the BCD values a
and b. Sets the sign of the nonnegative result to 0b1100 if
<emphasis>ps</emphasis> is 0. Otherwise, sets the sign of the
nonnegative result to 0b1111.</para>
<para>The sign of the result is determined as follows:</para>
<itemizedlist>
<listitem>
<para>If the result is a nonnegative value and
<emphasis>ps</emphasis> is 0, the sign is set to 0b1100
(0xC).</para>
</listitem>
<listitem>
<para>If the result is a nonnegative value and
<emphasis>L</emphasis> is 1, the sign is set to 0b1111
(0xF).</para>
</listitem>
<listitem>
<para>If the result is a negative value, the sign is set to
0b1101 (0xD).</para>
</listitem>
</itemizedlist>
<para>Parameters:</para>
<para>The ps parameter selects the numeric format for the
positive-signed BCD numbers. It must be set to one of the values
defined in
<xref linkend="dbdoclet.50655245_32368" /></para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>vector unsigned char __builtin_bcdsub (vector unsigned
char, vector unsigned char, long);</para>
</entry>
</row>
<row>
<entry nameend="c2" namest="c1">
<para>
<emphasis role="bold">BCD Predicates</emphasis>
</para>
</entry>
</row>
<row>
<entry>
<para>__BUILTIN_BCDADD_OFL (a, b)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Returns one if the corresponding BCD add operation results
in an overflow. Otherwise, returns zero.</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>int __ builtin_bcdadd_ofl (vector unsigned char, vector
unsigned char);</para>
</entry>
</row>
<row>
<entry>
<para>__BUILTIN_BCDSUB_OFL (a, b)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Returns one if the corresponding BCD subtract operation
results in an overflow. Otherwise, returns zero.</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>int __ builtin_bcdsub_ofl (vector unsigned char, vector
unsigned char
<emphasis>)</emphasis>;</para>
</entry>
</row>
<row>
<entry>
<para>__ BUILTIN_BCD_INVALID (a)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Returns one if
<emphasis>a</emphasis> is an invalid encoding of a BCD value.
Otherwise, returns zero.</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>int __ builtin_bcd_invalid (vector unsigned char);</para>
</entry>
</row>
<row>
<entry nameend="c2" namest="c1">
<para>
<emphasis role="bold">BCD Comparison</emphasis>
</para>
</entry>
</row>
<row>
<entry>
<para>__ BUILTIN_BCDCMPEQ (a, b)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Returns one if the BCD value
<emphasis>a</emphasis> is equal to
<emphasis>b</emphasis>. Otherwise, returns zero.</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>int __ builtin_bcdcmpeq (vector unsigned char, vector
unsigned char);</para>
</entry>
</row>
<row>
<entry>
<para>__ BUILTIN_BCDCMPGE (a, b)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Returns one if the BCD value
<emphasis>a</emphasis> is greater than or equal to
<emphasis>b</emphasis>. Otherwise, returns zero.</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>int __ builtin_bcdcmpge (vector unsigned char, vector
unsigned char);</para>
</entry>
</row>
<row>
<entry>
<para>__BUILTIN_BCDCMPGT (a, b)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Returns one if the BCD value
<emphasis>a</emphasis> is greater than
<emphasis>b</emphasis>. Otherwise, returns zero.</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>int __ builtin_bcdcmpgt (vector unsigned char, vector
unsigned char);</para>
</entry>
</row>
<row>
<entry>
<para>__BUILTIN_BCDCMPLE (a, b)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Returns one if the BCD value
<emphasis>a</emphasis> is less than or equal to
<emphasis>b</emphasis>. Otherwise, returns zero.</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>int __ builtin_bcdcmple (vector unsigned char, vector
unsigned char);</para>
</entry>
</row>
<row>
<entry>
<para>__ BUILTIN_BCDCMPLT (a, b)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Returns one if the BCD value
<emphasis>a</emphasis> is less than
<emphasis>b</emphasis>. Otherwise, returns zero.</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>int __ builtin_bcdcmplt (vector unsigned char, vector
unsigned char);</para>
</entry>
</row>
<row>
<entry>
<para>
<emphasis>BCD Load and Store</emphasis>
</para>
</entry>
<entry>
<para> </para>
</entry>
</row>
<row>
<entry>
<para>__ BUILTIN_BCD2DFP (a)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Converts a signed BCD value stored as a vector of unsigned
characters to a 128-bit decimal floating-point format.</para>
<itemizedlist>
<listitem>
<para>Parameter value a is a 128-bit vector that is treated
as a signed BCD 31-digit value.</para>
</listitem>
<listitem>
<para>The return value is a doubleword floating-point pair in
a decimal 128 floating-point format.</para>
</listitem>
</itemizedlist>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>_Decimal128 __ builtin_bcd2dfp (vector unsigned
char);</para>
</entry>
</row>
<row>
<entry>
<para>__ BUILTIN_BCDMUL10 (ARG1)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Multiplies the BCD number in ARG1 by 10. The sign indicator
remains unmodified.</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>vector unsigned char __builtin_bcdmul10 (vector unsigned
char);</para>
</entry>
</row>
<row>
<entry>
<para>__ BUILTIN_BCDDIV10 (ARG1)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Divides the BCD number in ARG1 by 10. The sign indicator
remains unmodified.</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>vector unsigned char __builtin_bcddiv10 (vector unsigned
char);</para>
</entry>
</row>
</tbody>
</tgroup>
</table>
<para> </para>
<section xml:id="dbdoclet.50655245_25759">
<title>BCD Header Functions</title>
<note>
<para>These functions are being phased in for POWER8, and might
not be available on all implementations. Phased-in functions are
optional for the current generation of compliant systems.</para>
</note>
<para>The bcd.h header file defines a BCD data type and the interfaces to
efficiently compute the BCD functions listed in
<xref linkend="dbdoclet.50655245_12427" />. These interfaces can be
implemented as macros or by another method, such as static inline
functions.
<xref linkend="dbdoclet.50655245_12427" /> shows one suggested
implementation using macros and the built-in operators shown in
<xref linkend="dbdoclet.50655245_77606" />. A sample bcd.h listing is shown
in
<xref linkend="dbdoclet.50655245_48437" />.</para>
<para>The bcd data type is defined as follows in the bcd.h:</para>
<para><literal>typedef bcd vector unsigned char;</literal></para>
<para>The header file also defines a bcd_default_format as follows:</para>
<para><literal>#ifndef bcd_default_format</literal></para>
<para><literal>#define bcd_default_format __BCD_SIGN_IBM</literal></para>
<para><literal>#endif</literal></para>
<para> </para>
<table frame="all" pgwide="1" xml:id="dbdoclet.50655245_12427">
<title>BCD Functions Defined by bcd.h</title>
<tgroup cols="2">
<colspec colname="c1" colwidth="30*" />
<colspec colname="c2" colwidth="80*" />
<thead>
<row>
<entry align="center">
<para>
<emphasis role="bold">Macro
<footnote xml:id="tabb2fna"><para>Or static inline function.</para></footnote></emphasis>
</para>
</entry>
<entry>
<para>
<emphasis role="bold">Macro Definition</emphasis>
</para>
</entry>
</row>
</thead>
<tbody>
<row>
<entry>
<para>bcd_add(a,b)</para>
</entry>
<entry>
<para>(bcd)__builtin_bcdadd (a,b, bcd_default_format)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_sub(a,b)</para>
</entry>
<entry>
<para>(bcd)__builtin_bcdsub (a,b, bcd_default_format)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_add_ofl(a,b)</para>
</entry>
<entry>
<para>(_Bool)__builtin_bcdadd_ofl (a,b)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_sub_ofl(a,b)</para>
</entry>
<entry>
<para>(_Bool)__builtin_bcdsub_ofl (a,b)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_invalid(a)</para>
</entry>
<entry>
<para>(_Bool)__builtin_bcd_invalid (a)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_cmpeq(a,b)</para>
</entry>
<entry>
<para>(_Bool)__builtin_bcdcmpeq (a,b)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_cmpge(a,b)</para>
</entry>
<entry>
<para>(_Bool)__builtin_bcdcmpge (a,b)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_cmpgt(a,b)</para>
</entry>
<entry>
<para>(_Bool)__builtin_bcdcmpgt (a,b)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_cmple(a,b)</para>
</entry>
<entry>
<para>(_Bool)__builtin_bcdcmple (a,b)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_cmplt(a,b)</para>
</entry>
<entry>
<para>(_Bool)__builtin_bcdcmplt (a,b)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_cmpne(a,b)</para>
</entry>
<entry>
<para>!(_Bool)__builtin_bcdcmpeq (a,b)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_xl(a,b)</para>
</entry>
<entry>
<para>(bcd)vec_xl_len_r(a,b)
<footnote xml:id="tabb2fnb"><para>Optionaly, __builtin_ldrmb (a,b) for previous
generations of XL compilers.</para></footnote>
</para>
</entry>
</row>
<row>
<entry>
<para>bcd_xst(a,b)</para>
</entry>
<entry>
<para>(bcd)vec_xst_len_r(a,b)
<footnote xml:id="tabb2fnc"><para>Optionaly, __builti_strmb (a,b) for previous
generatoin f XL compilers.</para></footnote>
</para>
</entry>
</row>
<row>
<entry>
<para>bcd_quantize(d)</para>
</entry>
<entry>
<para>__builtin_bcdquantize (d)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_dfp(a)</para>
</entry>
<entry>
<para>__builtin_bcd2dfp (a)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_dfp2bcd(dfp)</para>
</entry>
<entry>
<para>(bcd)__builtin_vec_DFP2BCD (_Decimal128 dfp)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_string2bcd(string)</para>
</entry>
<entry>
<para>(bcd) __bcd_string2bcd (string, bcd_default_format)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_mul10(a)</para>
</entry>
<entry>
<para>(bcd) __builtin_bcdmul10 (a)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_div10(a)</para>
</entry>
<entry>
<para>(bcd) __builtin_bcddiv10 (a)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_mul(a,b)</para>
</entry>
<entry>
<para>(bcd) __bcd_mul (a,b,bcd_default_format)</para>
</entry>
</row>
<row>
<entry>
<para>bcd_div(a,b)</para>
</entry>
<entry>
<para>(bcd) __bcd_div (a,b,bcd_default_format)</para>
</entry>
</row>
</tbody>
</tgroup>
</table>
<para>In addition, the bcd.h file provides access to the library functions
shown in
<xref linkend="dbdoclet.50655245_92773" />. These functions may be provided
either as a static inline function by bcd.h or in a system library that is
linked with an application which uses such functions.</para>
<para> </para>
<table frame="all" pgwide="1" xml:id="dbdoclet.50655245_92773">
<title>BCD Support Functions</title>
<tgroup cols="2">
<colspec colname="c1" colwidth="30*" align="center"/>
<colspec colname="c2" colwidth="80*" />
<thead>
<row>
<entry>
<para>
<emphasis role="bold">Function Name</emphasis>
</para>
</entry>
<entry align="center">
<para>
<emphasis role="bold">Description of BCD Support Functions
(with Prototypes)</emphasis>
</para>
</entry>
</row>
</thead>
<tbody>
<row>
<entry>
<para>__BCD_MUL (A,B,F)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>Two signed 31-digit values are multiplied, and the lower 31
digits of the product are returned. Overflow is ignored.</para>
<itemizedlist>
<listitem>
<para>Parameter A is a 128-bit vector that is treated as a
signed BCD 31-digit value.</para>
</listitem>
<listitem>
<para>Parameter B is a 128-bit vector that is treated as a
signed BCD 31-digit value.</para>
</listitem>
<listitem>
<para>Parameter F specifies the format of the BCD number
result.</para>
</listitem>
</itemizedlist>
<para>This function returns a 128-bit vector that is the lower 31
digits of (a × b).</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>bcd __bcd_mul (bcd, bcd, long)</para>
</entry>
</row>
<row>
<entry>
<para>__BCD_DIV (A,B,F)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>One signed 31-digit value is divided by a second 31-digit
value. The quotient is returned.</para>
<itemizedlist>
<listitem>
<para>Parameter A is a 128-bit vector that is treated as a
signed BCD 31-digit value.</para>
</listitem>
<listitem>
<para>Parameter B is a 128-bit vector that is treated as a
signed BCD 31-digit value.</para>
</listitem>
<listitem>
<para>Parameter F specifies the format of the BCD number
result.</para>
</listitem>
</itemizedlist>
<para>This function returns a 128-bit vector that is the lower 31
digits of (a / b).</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>bcd __builtin_bcddiv (bcd, bcd, long);</para>
</entry>
</row>
<row>
<entry>
<para>__BCD_STRING2BCD(S,F)</para>
</entry>
<entry>
<para>Purpose:</para>
<para>The received ASCII string is converted to a BCD number and
returned as a BCD type.</para>
<itemizedlist>
<listitem>
<para>Parameter S is the string to be converted.</para>
</listitem>
<listitem>
<para>Parameter F specifies the format of the BCD number
result.</para>
</listitem>
</itemizedlist>
<para>This function returns a 128-bit vector that consists of 31
BCD digits and a sign.</para>
</entry>
</row>
<row>
<entry>
<para> </para>
</entry>
<entry>
<para>bcd __bcd_string2bcd (char *, long);</para>
</entry>
</row>
</tbody>
</tgroup>
</table>
<para> </para>
<section xml:id="dbdoclet.50655245_32368">
<title>BCD API Named Constants</title>
<para>The BCD header file, bcd.h, defines named constants.
<xref linkend="dbdoclet.50655245_46767" /> defines constants for use in
conjunction with the BCD format representation. They can be used for
format specification and to set the bcd_default_format.</para>
<para> </para>
<table frame="all" pgwide="1" xml:id="dbdoclet.50655245_46767">
<title>Constants Used with BCD_FORMAT</title>
<tgroup cols="1">
<colspec colname="c1" colwidth="100*" />
<thead>
<row>
<entry>
<para>
<emphasis role="bold">Constants</emphasis>
</para>
</entry>
</row>
</thead>
<tbody>
<row>
<entry>
<para>#define BCD_FORMAT_IBM 0</para>
</entry>
</row>
<row>
<entry>
<para>#define BCD_FORMAT_Z 0</para>
</entry>
</row>
<row>
<entry>
<para>#define BCD_FORMAT_POWER 0</para>
</entry>
</row>
<row>
<entry>
<para>#define BCD_FORMAT_IBMi 1</para>
</entry>
</row>
<row>
<entry>
<para>#define BCD_FORMAT_I 1</para>
</entry>
</row>
<row>
<entry>
<para>#define BCD_FORMAT_NCR 1</para>
</entry>
</row>
</tbody>
</tgroup>
</table>
</section>
<section xml:id="dbdoclet.50655245_48437">
<title>Exemplary Implementation for bcd.h</title>
<para>
<xref linkend="dbdoclet.50655245_52184" /> shows an exemplary
implementation of the bcd.h with the interfaces shown in
<xref linkend="dbdoclet.50655245_12427" />, using the macros and the
built-in operators shown in
<xref linkend="dbdoclet.50655245_77606" />, and the functions shown in
<xref linkend="dbdoclet.50655245_92773" />.</para>
</section>
<section xml:id="dbdoclet.50655245_52184">
<title>Sample bcd.h Listing</title>
<programlisting>
#ifndef __BCD_H
#define __BCD_H
typedef bcd vector unsigned char;
#define BCD_FORMAT_IBM 0
#define BCD_FORMAT_Z 0
#define BCD_FORMAT_POWER 0
#define BCD_FORMAT_IBMi 1
#define BCD_FORMAT_I 1
#define BCD_FORMAT_NCR 1
#ifndef bcd_default_format
#define bcd_default_format __BCD_SIGN_IBM
#endif
#define bcd_add(a,b) ((bcd)__builtin_bcdadd (a,b,bcd_default_format))
#define bcd_sub(A,b) ((bcd)__builtin_bcdsub (a,b,bcd_default_format))
#define bcd_add_ofl(a,b) ((_Bool)__builtin_bcdadd_ofl (a,b))
#define bcd_add_ofl(a,b) ((_Bool)__builtin_bcdsub_ofl (a,b))
#define bcd_invalid(a) ((_Bool)__builtin_bcd_invalid (a))
#define bcd_cmpeq(a,b) ((_Bool)__builtin_bcdcmpeq (a,b))
#define bcd_cmpge(a,b) ((_Bool)__builtin_bcdcmpge (a,b))
#define bcd_cmpgt(a,b) ((_Bool)__builtin_bcdcmpgt (a,b))
#define bcd_cmple(a,b) ((_Bool)__builtin_bcdcmple (a,b))
#define bcd_cmplt(a,b) ((_Bool)__builtin_bcdcmplt (a,b))
#define bcd_cmpne(a,b) (!(_Bool)__builtin_bcdcmpeq (a,b))
#define bcd_xl(a,b) ((bcd)vec_xl_len_r(a,b))
#define bcd_xst(a,b) ((bcd)vec_xst_len_r(a,b))
#define bcd_quantize(d) (__builtin_bcdquantize(d))
#define bcd_dfp(a) (__builtin_bcd2dfp (a))
#define bcd_dfp2bcd(DFP) ((bcd)__builtin_vec_DFP2BCD (_Decimal128 dfp))
#define bcd_string2bcd(string) ((bcd) __bcd_string2bcd (string, bcd_default_format)
#define bcd_mul10(a) ((bcd) __builtin_bcdmul10 (a))
#define bcd_div10(a) ((bcd) __builtin_bcddiv10 (a))
#define bcd_mul(a,b) ((bcd) __bcd_mul (a,b,bcd_default_format))
#define bcd_div(a,b) ((bcd) __bcd_div (a,b,bcd_default_format))
#endif /* __BCD_H */
</programlisting>
</section>
</section>
</appendix>

@ -0,0 +1,623 @@
<appendix xmlns="http://docbook.org/ns/docbook"
xmlns:xl="http://www.w3.org/1999/xlink" version="5.0" xml:lang="en"
xml:id="dbdoclet.50655246_33489">
<title>Glossary</title>

<informaltable frame="none" rowsep='0' colsep='0'>
<tgroup cols="2">
<colspec colname="c1" colwidth="20*" />
<colspec colname="c2" colwidth="80*" />
<tbody>
<row>
<entry>
<para>ABI</para>
</entry>
<entry>
<para>Application binary interface</para>
</entry>
</row>
<row>
<entry>
<para>AES</para>
</entry>
<entry>
<para>Advanced Encryption Standard</para>
</entry>
</row>
<row>
<entry>
<para>API</para>
</entry>
<entry>
<para>Application programming interface</para>
</entry>
</row>
<row>
<entry>
<para>ASCII</para>
</entry>
<entry>
<para>American Standard Code for Information Interchange</para>
</entry>
</row>
<row>
<entry>
<para>BCD</para>
</entry>
<entry>
<para>Binary-coded decimal</para>
</entry>
</row>
<row>
<entry>
<para>BE</para>
</entry>
<entry>
<para>Big-endian</para>
</entry>
</row>
<row>
<entry>
<para>COBOL</para>
</entry>
<entry>
<para>Common Business Oriented Language</para>
</entry>
</row>
<row>
<entry>
<para>CR</para>
</entry>
<entry>
<para>Condition Register</para>
</entry>
</row>
<row>
<entry>
<para>CTR</para>
</entry>
<entry>
<para>Count Register</para>
</entry>
</row>
<row>
<entry>
<para>DFP</para>
</entry>
<entry>
<para>Decimal floating-point</para>
</entry>
</row>
<row>
<entry>
<para>DP</para>
</entry>
<entry>
<para>Double precision</para>
</entry>
</row>
<row>
<entry>
<para>DRN</para>
</entry>
<entry>
<para>The DFP Rounding Control field [DRN] of the 64-bit FPSCR
register.</para>
</entry>
</row>
<row>
<entry>
<para>DSCR</para>
</entry>
<entry>
<para>Data Stream Control Register</para>
</entry>
</row>
<row>
<entry>
<para>DSO</para>
</entry>
<entry>
<para>Dynamic shared object</para>
</entry>
</row>
<row>
<entry>
<para>DTV</para>
</entry>
<entry>
<para>Dynamic thread vector</para>
</entry>
</row>
<row>
<entry>
<para>DWARF</para>
</entry>
<entry>
<para>Debug with arbitrary record format</para>
</entry>
</row>
<row>
<entry>
<para>EA</para>
</entry>
<entry>
<para>Effective address</para>
</entry>
</row>
<row>
<entry>
<para>ELF</para>
</entry>
<entry>
<para>Executable and Linking Format</para>
</entry>
</row>
<row>
<entry>
<para>EOS</para>
</entry>
<entry>
<para>End-of-string</para>
</entry>
</row>
<row>
<entry>
<para>FPR</para>
</entry>
<entry>
<para>Floating-Point Register</para>
</entry>
</row>
<row>
<entry>
<para>FPSCR</para>
</entry>
<entry>
<para>Floating-Point Status and Control Register</para>
</entry>
</row>
<row>
<entry>
<para>GCC</para>
</entry>
<entry>
<para>GNU Compiler Collection</para>
</entry>
</row>
<row>
<entry>
<para>GEP</para>
</entry>
<entry>
<para>Global entry point</para>
</entry>
</row>
<row>
<entry>
<para>GOT</para>
</entry>
<entry>
<para>Global offset table</para>
</entry>
</row>
<row>
<entry>
<para>GPR</para>
</entry>
<entry>
<para>General Purpose Register</para>
</entry>
</row>
<row>
<entry>
<para>HTM</para>
</entry>
<entry>
<para>Hardware trace monitor</para>
</entry>
</row>
<row>
<entry>
<para>ID</para>
</entry>
<entry>
<para>Identification</para>
</entry>
</row>
<row>
<entry>
<para>IEC</para>
</entry>
<entry>
<para>International Electrotechnical Commission</para>
</entry>
</row>
<row>
<entry>
<para>IEEE</para>
</entry>
<entry>
<para>Institute of Electrical and Electronics Engineers</para>
</entry>
</row>
<row>
<entry>
<para>INF</para>
</entry>
<entry>
<para>Infinity</para>
</entry>
</row>
<row>
<entry>
<para>ISA</para>
</entry>
<entry>
<para>Instruction Set Architecture</para>
</entry>
</row>
<row>
<entry>
<para>ISO</para>
</entry>
<entry>
<para>International Organization for Standardization</para>
</entry>
</row>
<row>
<entry>
<para>KB</para>
</entry>
<entry>
<para>Kilobyte</para>
</entry>
</row>
<row>
<entry>
<para>LE</para>
</entry>
<entry>
<para>Little-endian</para>
</entry>
</row>
<row>
<entry>
<para>LEP</para>
</entry>
<entry>
<para>Local entry point</para>
</entry>
</row>
<row>
<entry>
<para>LR</para>
</entry>
<entry>
<para>Link Register</para>
</entry>
</row>
<row>
<entry>
<para>LSB</para>
</entry>
<entry>
<para>Least-significant byte</para>
</entry>
</row>
<row>
<entry>
<para>MB</para>
</entry>
<entry>
<para>Megabyte</para>
</entry>
</row>
<row>
<entry>
<para>MSB</para>
</entry>
<entry>
<para>Most-significant byte</para>
</entry>
</row>
<row>
<entry>
<para>MSR</para>
</entry>
<entry>
<para>Machine State Register</para>
</entry>
</row>
<row>
<entry>
<para>N/A</para>
</entry>
<entry>
<para>Not applicable</para>
</entry>
</row>
<row>
<entry>
<para>NaN</para>
</entry>
<entry>
<para>Not-a-Number</para>
</entry>
</row>
<row>
<entry>
<para>NOP</para>
</entry>
<entry>
<para>No operation. A single-cycle operation that does not
affect registers or generate bus activity.</para>
</entry>
</row>
<row>
<entry>
<para>NOR</para>
</entry>
<entry>
<para>In Boolean logic, the negation of a logical OR.</para>
</entry>
</row>
<row>
<entry>
<para>OE</para>
</entry>
<entry>
<para>The Floating-Point Overflow Exception Enable bit of the
FPSCR register.</para>
</entry>
</row>
<row>
<entry>
<para>PIC</para>
</entry>
<entry>
<para>Position-independent code</para>
</entry>
</row>
<row>
<entry>
<para>PIE</para>
</entry>
<entry>
<para>Position-independent executable</para>
</entry>
</row>