This patchset completes the FP emulation, leaving us with only
Neon (and CRC32) to go to complete the user-mode emulation.
Most of this is fixing issues and adding new features to softfloat.
(As usual, all Linaro authored softfloat patches are licensed under
either softfloat-2a or softfloat-2b, at your option.)
We need Tom Musta's softfloat patches too, so I have included them
here (updated to the latest versions with the issues fixed).
Changes v1->v2:
* updated versions of Tom Musta's patches "Fix float64_to_uint64"
and "Add float32_to_uint64"
* 16 bit int-to-float fns now take exact-width types
* new patch: "softfloat: Make the int-to-float functions take
exact-width types", to make the other int-to-float functions
consistent
* "Prepare VFP_CONV_FIX helpers for A64 uses" now also drops the
cast in the int_to_float call, since the above changes make it
unnecessary
* use 32 bit type as the intermediate when doing float-to-16-bit-int
conversions
* new patch: "softfloat: Refactor code handling various rounding modes"
which is a pure refactoring of the rounding mode code to
consistently use switches; this makes the "ties-away" support
patch nicer and ends up with more readable code
Alex: we should coordinate about whether these softfloat patches
should go through my tree or yours, otherwise there's going to be
a clash...
thanks
-- PMM
Alexander Graf (1):
target-arm: A64: Add "Floating-point<->fixed-point" instructions
Peter Maydell (13):
softfloat: Fix exception flag handling for float32_to_float16()
softfloat: Add 16 bit integer to float conversions
softfloat: Make the int-to-float functions take exact-width types
softfloat: Only raise Invalid when conversions to int are out of range
softfloat: Fix factor 2 error for scalbn on denormal inputs
softfloat: Provide complete set of accessors for fp state
softfloat: Factor out RoundAndPackFloat16 and
NormalizeFloat16Subnormal
softfloat: Add float16 <=> float64 conversion functions
softfloat: Refactor code handling various rounding modes
softfloat: Add support for ties-away rounding
target-arm: Ignore most exceptions from scalbn when doing fixpoint
conversion
target-arm: A64: Add 1-source 32-to-32 and 64-to-64 FP instructions
target-arm: A64: Add support for FCVT between half, single and double
Tom Musta (5):
softfloat: Fix float64_to_uint64
softfloat: Add float32_to_uint64()
softfloat: Fix float64_to_uint64_round_to_zero
softfloat: Fix float64_to_uint32
softfloat: Fix float64_to_uint32_round_to_zero
Will Newton (5):
softfloat: Add float to 16bit integer conversions.
target-arm: Prepare VFP_CONV_FIX helpers for A64 uses
target-arm: Rename A32 VFP conversion helpers
target-arm: A64: Add extra VFP fixed point conversion helpers
target-arm: A64: Add floating-point<->integer conversion instructions
fpu/softfloat.c | 1055 ++++++++++++++++++++++++++++++++------------
include/fpu/softfloat.h | 96 +++-
target-arm/helper.c | 141 +++++-
target-arm/helper.h | 25 ++
target-arm/translate-a64.c | 424 +++++++++++++++++-
target-arm/translate.c | 24 +-
6 files changed, 1428 insertions(+), 337 deletions(-)
--
1.8.5
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