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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>
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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>
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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>
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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>
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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>
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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>
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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>
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