Commit Graph

7 Commits

Author SHA1 Message Date
Stefan Weil d072cdf3ba libdecnumber: Fix warnings from smatch (missing static, boolean operations)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-24 13:21:06 +04:00
Tom Musta 0a322e7e7c libdecnumber: Fix decNumberSetBCD
Fix a simple bug in the decNumberSetBCD() function.  This function
encodes a decNumber with "n" BCD digits.  The original code erroneously
computed the number of declets from the dn argument, which is the output
decNumber value, and hence may contain garbage.  Instead, the input "n"
value is used.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:29 +02:00
Tom Musta 79af357225 libdecnumber: Introduce decNumberIntegralToInt64
Introduce a new conversion function to the libdecnumber library.
This function converts a decNumber to a signed 64-bit integer.
In order to support 64-bit integers (which may have up to 19
decimal digits), the existing "powers of 10" array is expanded
from 10 to 19 entries.

Signed-off-by: Tom Musta <tommusta@gmail.com>
[agraf: fix 32bit host compile]
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:29 +02:00
Tom Musta 8e706db21e libdecnumber: Introduce decNumberFrom[U]Int64
Introduce two conversion functions to the libdecnumber library.
These conversions transform 64 bit integers to the internal decNumber
representation.  Both a signed and unsigned version is added.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:29 +02:00
Tom Musta 4922fd7d52 libdecnumber: Eliminate Unused Variable in decSetSubnormal
Eliminate an unused variable in the decSetSubnormal routine.  The
variable dnexp is declared and eventually set but never used, and
thus may trigger an unused-but-set-variable warning.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:28 +02:00
Tom Musta 0f2d373220 libdecnumber: Prepare libdecnumber for QEMU include structure
Consistent with other libraries in QEMU, the libdecnumber header files were
placed in include/libdecnumber, separate from the C code.  This is different
from the original libdecnumber source, where they were co-located.

Change the libdecnumber source code so that it reflects this split.  Specifically,
modify directives of the form:

    #include "xxx.h"

to look like:

    #include "libdecnumber/xxx.h"

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:28 +02:00
Tom Musta 72ac97cdfc libdecnumber: Introduce libdecnumber Code
Add files from the libdecnumber decimal floating point library to QEMU.  The libdecnumber
library was originally part of GCC and contains code that is useful in emulating the PowerPC
decimal floating point (DFP) instructions.  This particular copy of the source comes from
GCC 4.3 and is licensed at GPLv2+.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:28 +02:00