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unicorn/qemu/target-mips
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Aleksandar Markovic a411a12170
target-mips: Add abs2008 flavor of <ABS|NEG>.<S|D> 
Updated handling of instructions <ABS|NEG>.<S|D>. Note that legacy
(pre-abs2008) ABS and NEG instructions are arithmetic (and, therefore,
any NaN operand causes signaling invalid operation), while abs2008
ones are non-arithmetic, always and only changing the sign bit, even
for NaN-like operands. Details on these instructions are documented
in [1] p. 35 and 359.

Implementation-wise, abs2008 versions are implemented without helpers,
for simplicity and performance sake.

[1] "MIPS Architecture For Programmers Volume II-A:
The MIPS64 Instruction Set Reference Manual",
Imagination Technologies LTD, Revision 6.04, November 13, 2015

Backports commit 6be77480052b1a71557081896e7080363a8a2f95 from qemu
2018-02-24 20:45:06 -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 target-mips: Add abs2008 flavor of <ABS|NEG>.<S|D> 2018-02-24 20:45:06 -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