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// This file is part of AsmJit project <https://asmjit.com>
//
// See asmjit.h or LICENSE.md for license and copyright information
// SPDX-License-Identifier: Zlib
#ifndef ASMJIT_CORE_SUPPORT_P_H_INCLUDED
#define ASMJIT_CORE_SUPPORT_P_H_INCLUDED
#include "../core/support.h"
ASMJIT_BEGIN_NAMESPACE
//! \addtogroup asmjit_utilities
//! \{
namespace Support {
//! \cond INTERNAL
static ASMJIT_FORCE_INLINE char decode5BitChar(uint32_t c) noexcept {
uint32_t base = c <= 26 ? uint32_t('a') - 1u : uint32_t('0') - 27u;
return char(base + c);
}
static ASMJIT_FORCE_INLINE size_t decodeInstName(char nameOut[32], uint32_t index, const char* stringTable) noexcept {
size_t i;
if (index & 0x80000000u) {
// Small string of 5-bit characters.
for (i = 0; i < 6; i++, index >>= 5) {
uint32_t c = index & 0x1F;
if (c == 0)
break;
nameOut[i] = decode5BitChar(c);
}
return i;
}
else {
size_t prefixBase = index & 0xFFFu;
size_t prefixSize = (index >> 12) & 0xFu;
size_t suffixBase = (index >> 16) & 0xFFFu;
size_t suffixSize = (index >> 28) & 0x7u;
for (i = 0; i < prefixSize; i++)
nameOut[i] = stringTable[prefixBase + i];
char* suffixOut = nameOut + prefixSize;
for (i = 0; i < suffixSize; i++)
suffixOut[i] = stringTable[suffixBase + i];
return prefixSize + suffixSize;
}
}
//! \endcond
} // {Support}
//! \}
ASMJIT_END_NAMESPACE
#endif // ASMJIT_CORE_SUPPORT_P_H_INCLUDED
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