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2014-06-16libdecnumber: Introduce decNumberIntegralToInt64Tom Musta
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>
2014-06-16libdecnumber: Introduce decNumberFrom[U]Int64Tom Musta
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>
2014-06-16libdecnumber: Change gstdint.h to stdint.hTom Musta
Replace the inclusion of gstdint.h with the standard stdint.h header file. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Modify dconfig.h to Integrate with QEMUTom Musta
Modify the dconfig.h header file so that libdecnumber code integrates QEMU configuration. Specifically: - the WORDS_BIGENDIAN preprocessor macro is used in libdecnumber code to determines endianness. It is derived from the existing QEMU macro HOST_WORDS_BIGENDIAN which is defined in config-host.h. - the DECPUN macro determines the number of decimal digits (aka declets) per unit (byte). This is 3 for PowerPC DFP. Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Prepare libdecnumber for QEMU include structureTom Musta
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>
2014-06-16libdecnumber: Eliminate #include *Symbols.hTom Musta
The various *Symbols.h files were not copied from the original GCC libdecnumber library; they are not necessary for use in QEMU. Remove all instances of #include "*Symbols.h" Signed-off-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16libdecnumber: Introduce libdecnumber CodeTom Musta
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>