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Branchless: Introduce TrueMask and FalseMask constants.

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hashlag
2026-08-30 01:48:58 +03:00
parent 1386caba9f
commit 72e4803939
2 changed files with 5 additions and 2 deletions
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Chaos/Padding/PadderIso7816.hpp
+2 -2
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@@ -52,8 +52,8 @@ public:
uint8_t padSizeIncrement = 1; uint8_t padSizeIncrement = 1;
uint8_t padSize = 0; uint8_t padSize = 0;
uint8_t encountered0x80 = 0x00; uint8_t encountered0x80 = Branchless::FalseMask;
uint8_t onlyZerosPast0x80 = 0xFF; uint8_t onlyZerosPast0x80 = Branchless::TrueMask;
InputIt it = end; InputIt it = end;
while (it != begin && padSize < std::numeric_limits<uint8_t>::max()) while (it != begin && padSize < std::numeric_limits<uint8_t>::max())
Chaos/Service/Branchless.hpp
+3
View File
@@ -10,6 +10,9 @@ namespace Chaos::Service
struct Branchless struct Branchless
{ {
static constexpr uint8_t FalseMask = 0x00;
static constexpr uint8_t TrueMask = 0xFF;
template<typename OutUInt, typename InUInt> template<typename OutUInt, typename InUInt>
static constexpr OutUInt MsbMask(InUInt in) noexcept static constexpr OutUInt MsbMask(InUInt in) noexcept
{ {