diff --git a/cpu.cpp b/cpu.cpp
index e28aca5..8a39870 100644
--- a/cpu.cpp
+++ b/cpu.cpp
@@ -1515,7 +1515,7 @@ bool cpu::condition_code_operations(const uint16_t instr)
 void cpu::pushStack(const uint16_t v)
 {
 	if (getRegister(6) == stackLimitRegister) {
-		DOLOG(debug, true, "stackLimitRegister reached");
+		DOLOG(debug, true, "stackLimitRegister reached %06o while pushing %06o", stackLimitRegister, v);
 
 		trap(123, 7);  // TODO
 	}
@@ -1685,6 +1685,8 @@ void cpu::trap(const uint16_t vector, const int new_ipl, const bool is_interrupt
 	new_psw |= (before_psw >> 2) & 030000; // apply new 'previous mode'
 	setPSW(new_psw, false);
 
+//	DOLOG(info, true, "R6: %06o, before PSW: %06o, new PSW: %06o", getRegister(6), before_psw, new_psw);
+
 	pushStack(before_psw);
 	pushStack(before_pc);
 	DOLOG(debug, true, "*** CPU::TRAP fin ***");
@@ -2194,9 +2196,6 @@ void cpu::step_b()
 	if ((b->getMMR0() & 0160000) == 0)
 		b->setMMR2(temp_pc);
 
-	if (temp_pc & 1)
-		busError();
-
 	try {
 		uint16_t instr = b->readWord(temp_pc);