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switch/case for get_trap_action

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folkert van heusden 2024-05-10 17:08:27 +02:00
parent a3f651b986
commit e883822ccc
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
1 changed files with 27 additions and 19 deletions
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46
mmu.cpp
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@ -270,27 +270,35 @@ std::pair<trap_action_t, int> mmu::get_trap_action(const int run_mode, const boo
trap_action_t trap_action = T_PROCEED;
if (access_control == 0)
trap_action = T_ABORT_4;
else if (access_control == 1)
trap_action = is_write ? T_ABORT_4 : T_TRAP_250;
else if (access_control == 2) {
if (is_write)
switch(access_control) {
case 0:
trap_action = T_ABORT_4;
}
else if (access_control == 3)
trap_action = T_ABORT_4;
else if (access_control == 4)
trap_action = T_TRAP_250;
else if (access_control == 5) {
if (is_write)
break;
case 1:
trap_action = is_write ? T_ABORT_4 : T_TRAP_250;
break;
case 2:
if (is_write)
trap_action = T_ABORT_4;
break;
case 3:
trap_action = T_ABORT_4;
break;
case 4:
trap_action = T_TRAP_250;
}
else if (access_control == 6) {
// proceed
}
else if (access_control == 7) {
trap_action = T_ABORT_4;
break;
case 5:
if (is_write)
trap_action = T_TRAP_250;
break;
case 6:
// proceed
break;
case 7:
trap_action = T_ABORT_4;
break;
}
return { trap_action, access_control };