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This commit is contained in:
folkert van heusden 2024-06-23 18:10:00 +02:00
parent fd632156d2
commit b97deba567
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
1 changed files with 4 additions and 2 deletions
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6
mmu.cpp
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@ -357,7 +357,6 @@ void mmu::mmudebug(const uint16_t a)
void mmu::verify_page_access(cpu *const c, const uint16_t virt_addr, const int run_mode, const bool d, const int apf, const bool is_write)
{
const auto [ trap_action, access_control ] = get_trap_action(run_mode, d, apf, is_write);
if (trap_action == T_PROCEED)
return;
@ -436,6 +435,9 @@ void mmu::verify_access_valid(cpu *const c, const uint32_t m_offset, const int r
void mmu::verify_page_length(cpu *const c, const uint16_t virt_addr, const int run_mode, const bool d, const int apf, const bool is_write)
{
uint16_t pdr_len = get_pdr_len(run_mode, d, apf);
if (pdr_len == 127)
return;
uint16_t pdr_cmp = (virt_addr >> 6) & 127;
bool direction = get_pdr_direction(run_mode, d, apf);
@ -489,7 +491,7 @@ uint32_t mmu::calculate_physical_address(cpu *const c, const int run_mode, const
if ((getMMR3() & 16) == 0) // off is 18bit
m_offset &= 0x3ffff;
if (trap_on_failure) {
if (trap_on_failure) [[likely]] {
verify_page_access(c, a, run_mode, d, apf, is_write);
// e.g. ram or i/o, not unmapped