folkert/KEK
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

PSW bit masking for RTI/RTT

Browse source
This commit is contained in:
Folkert van Heusden 2025-04-05 15:35:07 +02:00
parent 9bb0dc305c
commit c749db63e8
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
1 changed files with 4 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
cpu.cpp
View file

@ -316,14 +316,10 @@ int cpu::getPSW_spl() const
void cpu::setPSW(const uint16_t v, const bool limited)
{
if (limited) {
// cannot replace the run-mode bits nor the set of registers
// psw = (psw & ~0340) | (v & 0174340);
psw = (psw & 0177400) | (v & 037777);
}
else {
psw = v;
}
if (limited)
psw = (psw & 0174340) | (v & 037);
else
psw = v & 0174377; // mask off reserved bits
}
void cpu::setPSW_flags_nzv(const uint16_t value, const word_mode_t word_mode)