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11/34 needs special masking of bits in pdr

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folkert van heusden 2022-06-13 19:26:40 +02:00
parent 6eeb65eeb3
commit 1dfb1ab325
1 changed files with 3 additions and 3 deletions
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6
bus.cpp
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@ -551,7 +551,7 @@ uint16_t bus::write(const uint16_t a, const bool word_mode, uint16_t value, cons
} }
if (c->get_34()) // 11/34 has no cache bit if (c->get_34()) // 11/34 has no cache bit
pages[001][is_d][page].pdr &= 32767; pages[001][is_d][page].pdr &= 077516;
pages[001][is_d][page].pdr &= ~(128 + 64 + 32 + 16); // set bit 4 & 5 to 0 as they are unused and A/W are set to 0 by writes pages[001][is_d][page].pdr &= ~(128 + 64 + 32 + 16); // set bit 4 & 5 to 0 as they are unused and A/W are set to 0 by writes
@ -593,7 +593,7 @@ uint16_t bus::write(const uint16_t a, const bool word_mode, uint16_t value, cons
} }
if (c->get_34()) // 11/34 has no cache bit if (c->get_34()) // 11/34 has no cache bit
pages[000][is_d][page].pdr &= 32767; pages[000][is_d][page].pdr &= 077516;
pages[000][is_d][page].pdr &= ~(128 + 64 + 32 + 16); // set bit 4 & 5 to 0 as they are unused and A/W are set to 0 by writes pages[000][is_d][page].pdr &= ~(128 + 64 + 32 + 16); // set bit 4 & 5 to 0 as they are unused and A/W are set to 0 by writes
@ -635,7 +635,7 @@ uint16_t bus::write(const uint16_t a, const bool word_mode, uint16_t value, cons
} }
if (c->get_34()) // 11/34 has no cache bit if (c->get_34()) // 11/34 has no cache bit
pages[003][is_d][page].pdr &= 32767; pages[003][is_d][page].pdr &= 077516;
pages[003][is_d][page].pdr &= ~(128 + 64 + 32 + 16); // set bit 4 & 5 to 0 as they are unused and A/W are set to 0 by writes pages[003][is_d][page].pdr &= ~(128 + 64 + 32 + 16); // set bit 4 & 5 to 0 as they are unused and A/W are set to 0 by writes