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unicorn/qemu/target-mips
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Aleksandar Markovic ef9f33a345
target-mips: Activate IEEE 754-2008 signaling NaN bit meaning for MSA 
Function msa_reset() is updated so that flag snan_bit_is_one is
properly set to 0.

By applying this patch, a number of incorrect MSA behaviors that
require IEEE 754-2008 compliance will be fixed. Those are behaviors
that (up to the moment of applying this patch) did not get the desired
functionality from SoftFloat library with respect to distinguishing
between quiet and signaling NaN, getting default NaN values (both
quiet and signaling), establishing if a floating point number is NaN
or not, etc.

Two examples:

* FMAX, FMIN will now correctly detect and propagate NaNs.
* FCLASS.D ans FCLASS.S will now correcty detect NaN flavors

Backports commit 40bd6dd456e61a36e454fb9dd2cc739b67c224cf from qemu
2018-02-24 20:41:48 -05:00
..
cpu-qom.h target-mips: make cpu-qom.h not target specific 2018-02-24 00:59:03 -05:00
cpu.c cpu: move exec-all.h inclusion out of cpu.h 2018-02-24 02:39:08 -05:00
cpu.h softfloat: Implement run-time-configurable meaning of signaling NaN bit 2018-02-24 20:27:12 -05:00
dsp_helper.c mips: Clean up includes 2018-02-19 00:45:08 -05:00
helper.c cpu: move exec-all.h inclusion out of cpu.h 2018-02-24 02:39:08 -05:00
helper.h softfloat: Implement run-time-configurable meaning of signaling NaN bit 2018-02-24 20:27:12 -05:00
lmi_helper.c mips: Clean up includes 2018-02-19 00:45:08 -05:00
Makefile.objs import 2015-08-21 15:04:50 +08:00
mips-defs.h target-mips: fix MIPS64R6-generic configuration 2018-02-17 15:23:21 -05:00
msa_helper.c softfloat: Implement run-time-configurable meaning of signaling NaN bit 2018-02-24 20:27:12 -05:00
op_helper.c softfloat: Implement run-time-configurable meaning of signaling NaN bit 2018-02-24 20:27:12 -05:00
TODO import 2015-08-21 15:04:50 +08:00
translate.c softfloat: Implement run-time-configurable meaning of signaling NaN bit 2018-02-24 20:27:12 -05:00
translate_init.c target-mips: Activate IEEE 754-2008 signaling NaN bit meaning for MSA 2018-02-24 20:41:48 -05:00
unicorn.c qemu-common: push cpu.h inclusion out of qemu-common.h 2018-02-24 01:50:56 -05:00
unicorn.h armeb: rename arm's and mips's *REGS_STORAGE_SIZE to avoid big-endian and little-endian's duplicated definition. 2017-03-15 22:25:35 +08:00