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Author SHA1 Message Date
Lioncash
99c494bae9 common/fp/unpacked: Add FPRoundCV 
Corresponds to the equivalent pseudocode within the ARMv8 reference
manual. This will be necessary for supporting half-precision
floating-point.

This also makes use of it within FPConvert
 2020-04-22 20:58:11 +01:00
Lioncash
8f9fe8690a common/fp/unpacked: Adjust FPUnpack to operate like ARM pseudocode 
This function is defined as always disabling the AHP bit in the fpcr
before performing any operations.

At the same time, rename the original FPUnpack function to FPUnpackBase
to match the pseudocode in the ARM reference manual.
 2020-04-22 20:58:11 +01:00
Lioncash
a829c93406 common/fp/unpacked: Correct edge-cases within FPUnpack for half-precision floating point 
This corrects one case where floating-point exceptions could be set when
they're not supposed to be.

This also corrects a case where values were being treated as NaNs when
they weren't supposed to be.
 2020-04-22 20:58:11 +01:00
Merry
fb039e232c Merge pull request #442 from lioncash/fcvtxn 
A64: Implement scalar and vector variants of FCVTXN
 2020-04-22 20:58:11 +01:00
Lioncash
6aed4036ef ir_opt/a64_get_set_elimination_pass: Add handling for NZCV raw get and set operations 2020-04-22 20:58:11 +01:00
Lioncash
490bebbd9a common/fp/unpacked: Add FPUnpackCV 
Adds a template function that performs the same behavior as in the ARM
pseudocode, and utilizes it in FPConvert, which will be necessary for
half-float support.
 2020-04-22 20:58:11 +01:00
Merry
4f937c1ee1 Merge pull request #446 from lioncash/sqshl 
A64: Implement scalar variants of SQSHL (register) and UQSHL (register)
 2020-04-22 20:58:11 +01:00
Lioncash
aa22db534b A64: Implement AXFlag and XAFlag 2020-04-22 20:58:11 +01:00
Merry
d74cccbc84 Merge pull request #445 from lioncash/sqrt 
A64: Implement single and double-precision vector variant of FSQRT
 2020-04-22 20:58:11 +01:00
Lioncash
20ffe568d0 A64: Implement RMIF 2020-04-22 20:58:11 +01:00
Merry
6d7e7c3269 Merge pull request #443 from lioncash/flag 
A64: Rearrange flag format/manipulation instructions
 2020-04-22 20:58:11 +01:00
Lioncash
51b526e453 A64: Implement CFINV 2020-04-22 20:58:11 +01:00
Merry
5d01f1b462 Merge pull request #441 from lioncash/constexpr 
common/bit_util: Mark a few functions as constexpr
 2020-04-22 20:58:11 +01:00
Lioncash
597a8be5d5 ir: Add A64-specific opcodes for getting and setting raw NZCV values 
This will be necessary to implement the flag manipulation and flag
format instructions.
 2020-04-22 20:58:11 +01:00
Merry
743c52fdc5 Merge pull request #440 from lioncash/include 
common/fp: Remove unnecessary includes
 2020-04-22 20:58:11 +01:00
Merry
46922b9138 Merge pull request #444 from lioncash/interpret 
A64: Fall back to interpreting for FCADD and FCMLA half-precision variants
 2020-04-22 20:58:11 +01:00
Lioncash
d3515279df A64: Implement the vector version of FCVTXN 2020-04-22 20:58:10 +01:00
Lioncash
17aea0b997 A64: Implement UQSHL (register)'s scalar variant 
This can be implemented in terms of the vector variant.
 2020-04-22 20:58:10 +01:00
Lioncash
c99d4b762e A64: Implement single and double-precision vector variant of FSQRT 2020-04-22 20:58:10 +01:00
Lioncash
54e0b487f3 A64: Rearrange flag format/manipulation instructions 
Gives these instructions better categorical labeling.
 2020-04-22 20:58:10 +01:00
Lioncash
88d1977cb9 common/bit_util: Make a few functions as constexpr 
These four functions can be made constexpr with no issue.
 2020-04-22 20:58:10 +01:00
Lioncash
f33e5939b7 common/fp: Remove unnecessary includes 2020-04-22 20:58:10 +01:00
Lioncash
36027ebef5 frontend/ir/microinstruction: Add missing cases for FPRecipExponent{32,64} for ReadsFromAndWritesToFPSRCumulativeExceptionBits() 
This was intended to be added within #437, but was missed
 2020-04-22 20:58:10 +01:00
Lioncash
302f56b36a A64: Fall back to interpreting for FCADD and FCMLA half-precision variants 
Rather than straight-up treating them as undefined, we can fall back to an
interpreter in this case.
 2020-04-22 20:58:10 +01:00
Lioncash
4339a8fff6 A64: Implement the scalar version of FCVTXN 2020-04-22 20:58:10 +01:00
Lioncash
35ddf68ad5 A64: Implement SQSHL (register)'s scalar variant 
We can implement this in terms of the vector variant.
 2020-04-22 20:58:10 +01:00
Lioncash
5cf1478620 frontend/ir: Add opcodes for vector square roots 2020-04-22 20:58:10 +01:00
Merry
40b081438a Merge pull request #439 from lioncash/fcmla 
A64: Implement FCADD and FCMLA
 2020-04-22 20:58:10 +01:00
Lioncash
7c81a58ed3 frontend/ir/ir_emitter: Alter parameters of FPDoubleToSingle() and FPSingleToDouble() to pass along desired rounding mode 
This will be necessary to special-case the non-IEEE Von Neumann rounding
to odd rounding mode.
 2020-04-22 20:58:10 +01:00
Merry
d91192681a Merge pull request #438 from lioncash/fmulx 
A64: Implement scalar double/single precision FMULX (by element)
 2020-04-22 20:58:10 +01:00
Lioncash
ed29ef8cca A64: Implement FCMLA 2020-04-22 20:58:10 +01:00
Lioncash
95af9dafbe common/fp/op: Add FP conversion functions 2020-04-22 20:58:10 +01:00
Merry
9f11720a69 Merge pull request #437 from lioncash/frecpx 
A64: Implement FRECPX (single, double precision)
 2020-04-22 20:58:10 +01:00
Lioncash
bdcea0b0dc A64: Implement scalar double/single precision FMULX (by element) 2020-04-22 20:58:10 +01:00
Lioncash
5ce17574f9 A64: Implement FCADD 2020-04-22 20:58:10 +01:00
Merry
34d917f34e Merge pull request #436 from lioncash/no-alloc 
A64: Implement LDNP/STNP
 2020-04-22 20:58:10 +01:00
Lioncash
e44730ba6d A64: Implement FRECPX (single, double precision) 2020-04-22 20:58:10 +01:00
Merry
f48049e0a5 Merge pull request #435 from lioncash/a32 
tests/a32/testenv: Make A32TestEnv's code_mem member a std::vector
 2020-04-22 20:58:10 +01:00
Lioncash
bfaeb08d3c A64: Implement LDNP/STNP 
LDNP and STNP indicate that a memory access is non-temporal/streaming
(i.e. unlikely to be repeated), allowing data caching to not be
performed. However, given this is only a hint, we can treat these two
instructions as regular LDP and STP instructions for the time being.
 2020-04-22 20:58:10 +01:00
Lioncash
9cf3c25811 frontend/ir/ir_emitter: Add opcodes for floating point reciprocal exponents 2020-04-22 20:58:10 +01:00
Merry
dbf47db713 Merge pull request #434 from lioncash/format 
A32/translate_arm: Formatting/tidying up
 2020-04-22 20:58:10 +01:00
Lioncash
9faed40a34 tests/a32/testenv: Make A32TestEnv's code_mem member a std::vector 
Makes the data member consistent with the A64 test environment.
 2020-04-22 20:58:10 +01:00
Lioncash
b168c2a9f9 common/fp/op: Add operations for floating-point reciprocal exponents 2020-04-22 20:58:10 +01:00
Merry
503190c44c Merge pull request #433 from lioncash/unicorn 
tests/unicorn_emu: Add getters and setters for PC/SP
 2020-04-22 20:58:10 +01:00
Lioncash
05a6ab691d translate_arm/coprocessor: Minor tidying up 2020-04-22 20:58:10 +01:00
Merry
1c70ef7333 Merge pull request #432 from lioncash/catch 
externals: Update Catch to 2.6.1
 2020-04-22 20:58:10 +01:00
Lioncash
1e32a09c03 translate_arm/vfp2: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00
Merry
24b0622093 Merge pull request #431 from lioncash/noexcept 
backend/x64/a32_interface: Mark Context move constructor and move assignment as noexcept
 2020-04-22 20:58:10 +01:00
Lioncash
e209b31073 translate_arm/synchronization: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00
Lioncash
9514e3602e translate_arm/status_register_access: Invert conditionals where applicable 2020-04-22 20:58:10 +01:00