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This commit is contained in:
Ahmet Inan 2025-12-23 19:13:59 +01:00
commit 6986a4465a
2 changed files with 0 additions and 18 deletions
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9
pac_encoder.hh
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@ -20,21 +20,12 @@ class PACEncoder
} }
static bool conv(int *state, bool input) static bool conv(int *state, bool input)
{ {
#if 0
// 1011011 // 1011011
bool b1 = (*state >> 1) & 1; bool b1 = (*state >> 1) & 1;
bool b3 = (*state >> 3) & 1; bool b3 = (*state >> 3) & 1;
bool b4 = (*state >> 4) & 1; bool b4 = (*state >> 4) & 1;
bool b6 = (*state >> 6) & 1; bool b6 = (*state >> 6) & 1;
bool output = input ^ b1 ^ b3 ^ b4 ^ b6; bool output = input ^ b1 ^ b3 ^ b4 ^ b6;
#else
// 1101101
bool b2 = (*state >> 2) & 1;
bool b3 = (*state >> 3) & 1;
bool b5 = (*state >> 5) & 1;
bool b6 = (*state >> 6) & 1;
bool output = input ^ b2 ^ b3 ^ b5 ^ b6;
#endif
*state = ((*state & 126) << 1) | (input ? 2 : 0) | (output ? 1 : 0); *state = ((*state & 126) << 1) | (input ? 2 : 0) | (output ? 1 : 0);
return output; return output;
} }

9
pac_list_decoder.hh
View file

@ -19,21 +19,12 @@ struct PACListLeaf
typedef typename PH::MAP MAP; typedef typename PH::MAP MAP;
static bool conv(int *state, bool input) static bool conv(int *state, bool input)
{ {
#if 0
// 1011011 // 1011011
bool b1 = (*state >> 1) & 1; bool b1 = (*state >> 1) & 1;
bool b3 = (*state >> 3) & 1; bool b3 = (*state >> 3) & 1;
bool b4 = (*state >> 4) & 1; bool b4 = (*state >> 4) & 1;
bool b6 = (*state >> 6) & 1; bool b6 = (*state >> 6) & 1;
bool output = input ^ b1 ^ b3 ^ b4 ^ b6; bool output = input ^ b1 ^ b3 ^ b4 ^ b6;
#else
// 1101101
bool b2 = (*state >> 2) & 1;
bool b3 = (*state >> 3) & 1;
bool b5 = (*state >> 5) & 1;
bool b6 = (*state >> 6) & 1;
bool output = input ^ b2 ^ b3 ^ b5 ^ b6;
#endif
*state = ((*state & 126) << 1) | (input ? 2 : 0) | (output ? 1 : 0); *state = ((*state & 126) << 1) | (input ? 2 : 0) | (output ? 1 : 0);
return output; return output;
} }