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This commit is contained in:
Markus F.X.J. Oberhumer
2025-07-05 22:23:13 +02:00
parent ef01a73e8f
commit 915bfbd82e
6 changed files with 59 additions and 47 deletions
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src/bele.h
+12 -11
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@@ -32,8 +32,9 @@
// NE - Native Endianness (aka Host Endianness aka CPU Endianness)
// TE - Target Endianness (not used here, see various packers)
static_assert(std::is_same_v<upx_uint32_t, unsigned>);
static_assert(std::is_same_v<byte, unsigned char>);
static_assert(std::is_same_v<upx_int32_t, int>);
static_assert(std::is_same_v<upx_uint32_t, unsigned>);
#if defined(upx_is_constant_evaluated)
#define bele_constexpr constexpr
@@ -411,7 +412,7 @@ inline bele_constexpr void set_le14_5(XE32 *p, unsigned v) noexcept {
// get signed values
**************************************************************************/
forceinline constexpr int sign_extend(unsigned v, unsigned bits) noexcept {
forceinline constexpr int sign_extend32(unsigned v, unsigned bits) noexcept {
#if (ACC_ARCH_M68K) // no barrel shifter
const unsigned sign_bit = 1u << (bits - 1);
return ACC_ICAST(int, (v & (sign_bit - 1)) - (v & sign_bit));
@@ -420,7 +421,7 @@ forceinline constexpr int sign_extend(unsigned v, unsigned bits) noexcept {
#endif
}
forceinline constexpr upx_int64_t sign_extend(upx_uint64_t v, unsigned bits) noexcept {
forceinline constexpr upx_int64_t sign_extend64(upx_uint64_t v, unsigned bits) noexcept {
#if (ACC_ARCH_M68K) // no barrel shifter
const upx_uint64_t sign_bit = upx_uint64_t(1) << (bits - 1);
return ACC_ICAST(upx_int64_t, (v & (sign_bit - 1)) - (v & sign_bit));
@@ -432,49 +433,49 @@ forceinline constexpr upx_int64_t sign_extend(upx_uint64_t v, unsigned bits) noe
REQUIRE_XE16
inline bele_constexpr int get_be16_signed(const XE16 *p) noexcept {
unsigned v = get_be16(p);
return sign_extend(v, 16);
return sign_extend32(v, 16);
}
REQUIRE_XE24
inline bele_constexpr int get_be24_signed(const XE24 *p) noexcept {
unsigned v = get_be24(p);
return sign_extend(v, 24);
return sign_extend32(v, 24);
}
REQUIRE_XE32
inline bele_constexpr int get_be32_signed(const XE32 *p) noexcept {
unsigned v = get_be32(p);
return sign_extend(v, 32);
return sign_extend32(v, 32);
}
REQUIRE_XE64
inline bele_constexpr upx_int64_t get_be64_signed(const XE64 *p) noexcept {
upx_uint64_t v = get_be64(p);
return sign_extend(v, 64);
return sign_extend64(v, 64);
}
REQUIRE_XE16
inline bele_constexpr int get_le16_signed(const XE16 *p) noexcept {
unsigned v = get_le16(p);
return sign_extend(v, 16);
return sign_extend32(v, 16);
}
REQUIRE_XE24
inline bele_constexpr int get_le24_signed(const XE24 *p) noexcept {
unsigned v = get_le24(p);
return sign_extend(v, 24);
return sign_extend32(v, 24);
}
REQUIRE_XE32
inline bele_constexpr int get_le32_signed(const XE32 *p) noexcept {
unsigned v = get_le32(p);
return sign_extend(v, 32);
return sign_extend32(v, 32);
}
REQUIRE_XE64
inline bele_constexpr upx_int64_t get_le64_signed(const XE64 *p) noexcept {
upx_uint64_t v = get_le64(p);
return sign_extend(v, 64);
return sign_extend64(v, 64);
}
/*************************************************************************