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Correction: the least significant bit is *not* zeroed by an IM 2 interrupt

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Adrian Conlon
2025-08-12 17:19:55 +01:00
parent e96a51342a
commit eb23fbe44c
1 changed files with 2 additions and 4 deletions
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6
Z80/Z80.cs
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@@ -626,10 +626,8 @@ namespace Z80
case 2:
this.Tick();
this.PushWord(this.PC);
this.Bus.Address.Assign((byte)(data & ~1), this.IV);
Debug.Assert(this.Bus.Address.Low % 2 == 0);
this.PC.Assign(this.GetWord());
Debug.Assert(this.Bus.Address.Low % 2 == 1);
this.Bus.Address.Assign(data, this.IV);
this.PC.Assign(this.GetWordPaged());
Debug.Assert(this.Cycles == 19);
break;
default: