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Add emulation of the PowerPC Decimal Floating Point Add instructions dadd[q][.]
Various GCC unused annotations are removed since it is now safe to remove them.
Signed-off-by: Tom Musta <tommusta@gmail.com>
[agraf: move brace in function definition]
Signed-off-by: Alexander Graf <agraf@suse.de>
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Add post-processing utilities to the PowerPC Decimal Floating Point
(DFP) helper code. Post-processors are small routines that execute
after a preliminary DFP result is computed. They are used, among other
things, to compute status bits.
This change defines a function type for post processors as well as a
generic routine to run a list (array) of post-processors.
Actual post-processor implementations will be added as needed by specific
DFP helpers in subsequent changes.
Some routines are annotated with the GCC unused attribute in order to
preserve build bisection. The annotation will be removed in subsequent
patches.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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Add a new file (dfp_helper.c) to the PowerPC implementation for Decimal Floating
Point (DFP) emulation. This first version of the file declares a structure that
will be used by DFP helpers. It also implements utilities that will initialize
such a structure for either a long (64 bit) DFP instruction or an extended (128
bit, aka "quad") instruction.
Some utility functions are annotated with the unused attribute in order to preserve
build bisection.
Signed-off-by: Tom Musta <tommusta@gmail.com>
[agraf: Add never reached assert on dfp_prepare_rounding_mode()]
Signed-off-by: Alexander Graf <agraf@suse.de>
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