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d-bit in mmr0 was always set

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folkert van heusden 2024-04-13 02:21:15 +02:00
parent 3b2e65a8a7
commit 9883edc233
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
1 changed files with 2 additions and 2 deletions
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4
bus.cpp
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@ -618,7 +618,7 @@ uint32_t bus::calculate_physical_address(const int run_mode, const uint16_t a, c
pages[run_mode][d][apf].pdr |= 1 << 7;
if ((MMR0 & 0160000) == 0) {
MMR0 &= ~((1l << 15) | (1 << 14) | (1 << 13) | (1 << 12) | (3 << 5) | (7 << 1));
MMR0 &= ~((1l << 15) | (1 << 14) | (1 << 13) | (1 << 12) | (3 << 5) | (7 << 1) | (1 << 4));
if (is_write && access_control != 6)
MMR0 |= 1 << 13; // read-only
@ -685,7 +685,7 @@ uint32_t bus::calculate_physical_address(const int run_mode, const uint16_t a, c
// DOLOG(debug, false, "p_offset %06o pdr_len %06o direction %d, run_mode %d, apf %d, pdr: %06o", p_offset, pdr_len, direction, run_mode, apf, pages[run_mode][d][apf].pdr);
if ((pdr_cmp > pdr_len && direction == false) || (pdr_cmp < pdr_len && direction == true)) {
DOLOG(debug, !peek_only, "bus::calculate_physical_address::p_offset %o versus %o direction %d", pdr_cmp, pdr_len, direction);
DOLOG(debug, false, "bus::calculate_physical_address::p_offset %o versus %o direction %d", pdr_cmp, pdr_len, direction);
DOLOG(debug, false, "TRAP(0250) (throw 7) on address %06o", a);
c->trap(0250); // invalid access