Commit graph

24 commits

Author SHA1 Message Date
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
7139942976 common: Move byte swapping functions to bit_utils.h
These are quite general functions, so they can just be moved into common
instead of recreating a namespace here.
2020-04-22 20:57:37 +01:00
MerryMage
7a673a8a43 fp: Change FPUnpacked to a normalized representation
Having a known position for the highest set bit makes writing algorithms easier
2020-04-22 20:46:22 +01:00
MerryMage
084bf63a10 bit_util: Implement ClearBits and ModifyBits 2020-04-22 20:46:21 +01:00
MerryMage
b00fe23b91 bit_util: Implement MostSignificantBit 2020-04-22 20:46:19 +01:00
MerryMage
95ad0d0a66 bit_util: Use Ones to implement Bits 2020-04-22 20:46:19 +01:00
MerryMage
62b640b2fa bit_util: Add ClearBit and ModifyBit 2020-04-22 20:46:19 +01:00
Lioncash
ade595e377 bit_util: Do nothing in RotateRight if the rotation amount is zero
Without this sanitizing it's possible to perform a shift with a shift
amount that's the same size as the type being shifted. This actually
occurs when decoding ORR variants.

We could get fancier here and make this branchless, but we don't
really use RotateRight in any performance intensive areas.
2020-04-22 20:46:15 +01:00
Lioncash
67443efb62 General: Convert multiple namespace specifiers to nested namespace specifiers where applicable
Makes namespacing a little less noisy
2020-04-22 20:44:38 +01:00
MerryMage
33bba6028c bit_util: bug: Infinite loop in HighestSetBit 2020-04-22 20:44:37 +01:00
MerryMage
3caf192f60 A64: Implement DUP (general) 2020-04-22 20:44:37 +01:00
MerryMage
9f57283a30 A64: Implement SBFM, BFM, UBFM 2020-04-22 20:42:45 +01:00
MerryMage
cb481a3a48 A64: Implement compare and branch 2020-04-22 20:42:45 +01:00
MerryMage
0641445e51 A64: Implement logical 2020-04-22 20:42:45 +01:00
MerryMage
3e0e339d98 bit_util: Remove unnecessary include 2017-01-09 22:19:51 +00:00
MerryMage
0d1fa85402 bit_util: Bit<T>(size_t, const T) cannot be constexpr
Compound statements are not permitted in constexpr functions in C++14
2016-12-29 10:08:35 +00:00
MerryMage
b23b524b03 bit_util: Add SignExtend implementation with runtime bit_count argument 2016-12-21 19:51:25 +00:00
Mat M
7f9a0c3c38 Remove unnecessary explicit includes (#16) 2016-09-03 21:48:03 +01:00
MerryMage
cc3e7e71aa bit_util: std::bitset-based BitCount implementation
Suggestion by @lioncash.
2016-09-02 22:00:48 +01:00
MerryMage
e8764c129f bit_util: Implement BitCount portably 2016-09-02 19:05:49 +01:00
MerryMage
f7e3d7b8d2 Implement Thumb PUSH instruction 2016-07-18 15:11:16 +01:00
MerryMage
c18a3eeab4 Better MSVC support
* Avoiding use of templated variables.
* Now compling on MSVC with /WX (warnings as errors).
* Fixed all MSVC warnings.
* Fixed MSVC source_groups.
2016-07-18 10:38:22 +01:00
MerryMage
d743adf518 Reorganisation, Import Skyeye, This is a mess 2016-07-04 17:22:11 +08:00
MerryMage
65df15633d First Commit 2016-07-01 21:01:06 +08:00