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ppcmmu: Different expressions.

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Rairii 2024-08-25 00:12:37 -07:00 committed by dingusdev
parent bb3e89e3af
commit 8cc67b09c2
1 changed files with 3 additions and 3 deletions
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6
cpu/ppc/ppcmmu.cpp
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@ -137,19 +137,19 @@ static BATResult ppc_block_address_translation(uint32_t la)
PPC_BAT_entry *bat_array; PPC_BAT_entry *bat_array;
bool bat_hit = false; bool bat_hit = false;
unsigned msr_pr = !!(ppc_state.msr & MSR::PR); unsigned msr_pr = (ppc_state.msr & MSR::PR) != 0;
bat_array = (type == BATType::IBAT) ? ibat_array : dbat_array; bat_array = (type == BATType::IBAT) ? ibat_array : dbat_array;
// Format: %XY // Format: %XY
// X - supervisor access bit, Y - problem/user access bit // X - supervisor access bit, Y - problem/user access bit
// Those bits are mutually exclusive // Those bits are mutually exclusive
unsigned access_bits = ((msr_pr ^ 1) << 1) | msr_pr; unsigned access_bits = ((!msr_pr) << 1) | msr_pr;
for (int bat_index = 0; bat_index < 4; bat_index++) { for (int bat_index = 0; bat_index < 4; bat_index++) {
PPC_BAT_entry* bat_entry = &bat_array[bat_index]; PPC_BAT_entry* bat_entry = &bat_array[bat_index];
if ((bat_entry->access & access_bits) && ((la & bat_entry->hi_mask) == bat_entry->bepi)) { if ((bat_entry->access & access_bits) != 0 && ((la & bat_entry->hi_mask) == bat_entry->bepi)) {
bat_hit = true; bat_hit = true;
#ifdef MMU_PROFILING #ifdef MMU_PROFILING