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SPU: improve accurate DMA

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Remove vm::reservation_lock from it.
Use lock bits to prevent memory clobbering in GETLLAR.
Improve u128 for MSVC since it's used for bitlocking.
Improve 128 bit atomics for the same reason.
Improve vm::reservation_op and friends.
This commit is contained in:
Nekotekina 2020-10-27 21:34:08 +03:00
parent c50233cc92
commit c491b73f3a
7 changed files with 264 additions and 33 deletions
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27
Utilities/types.h
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@ -304,6 +304,11 @@ struct alignas(16) u128
{
}
constexpr explicit operator bool() const noexcept
{
return !!(lo | hi);
}
friend u128 operator+(const u128& l, const u128& r)
{
u128 value;
@ -384,6 +389,28 @@ struct alignas(16) u128
return value;
}
u128 operator<<(u128 shift_value)
{
const u64 v0 = lo << (shift_value.lo & 63);
const u64 v1 = __shiftleft128(lo, hi, shift_value.lo);
u128 value;
value.lo = (shift_value.lo & 64) ? 0 : v0;
value.hi = (shift_value.lo & 64) ? v0 : v1;
return value;
}
u128 operator>>(u128 shift_value)
{
const u64 v0 = hi >> (shift_value.lo & 63);
const u64 v1 = __shiftright128(lo, hi, shift_value.lo);
u128 value;
value.lo = (shift_value.lo & 64) ? v0 : v1;
value.hi = (shift_value.lo & 64) ? 0 : v0;
return value;
}
u128 operator~() const
{
u128 value;