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11/70 has no MFPS instruction

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folkert van heusden 2023-03-19 22:07:27 +01:00
parent 40df962c83
commit 8b82095d49
Signed by untrusted user who does not match committer: folkert
GPG key ID: 6B6455EDFEED3BD1
1 changed files with 8 additions and 1 deletions
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9
cpu.cpp
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@ -27,7 +27,7 @@ void cpu::init_interrupt_queue()
{ {
queued_interrupts.clear(); queued_interrupts.clear();
for(int level=0; level<8; level++) for(uint8_t level=0; level<8; level++)
queued_interrupts.insert({ level, { } }); queued_interrupts.insert({ level, { } });
} }
@ -1311,6 +1311,7 @@ bool cpu::single_operand_instructions(const uint16_t instr)
auto g_dst = getGAM(dst_mode, dst_reg, word_mode, false); auto g_dst = getGAM(dst_mode, dst_reg, word_mode, false);
if (word_mode) { // MFPS if (word_mode) { // MFPS
#if 0 // not in the PDP-11/70
uint16_t temp = psw & 0xff; uint16_t temp = psw & 0xff;
bool extend_b7 = psw & 128; bool extend_b7 = psw & 128;
@ -1324,6 +1325,9 @@ bool cpu::single_operand_instructions(const uint16_t instr)
setPSW_v(false); setPSW_v(false);
setPSW_n(extend_b7); setPSW_n(extend_b7);
} }
#else
trap(010);
#endif
} }
else { // SXT else { // SXT
int32_t vl = -getPSW_n(); int32_t vl = -getPSW_n();
@ -2167,6 +2171,9 @@ void cpu::step_b()
try { try {
uint16_t instr = b->readWord(temp_pc); uint16_t instr = b->readWord(temp_pc);
if (temp_pc == 025250)
DOLOG(debug, true, "GREP %06o %06o", temp_pc, instr);
addRegister(7, false, 2); addRegister(7, false, 2);
if (double_operand_instructions(instr)) if (double_operand_instructions(instr))