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Add support for checking deferred EI correctness

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This commit is contained in:
Adrian Conlon
2025-08-14 14:57:51 +01:00
parent 4da07a8fa2
commit c67e376d4f
2 changed files with 12 additions and 6 deletions
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10
LR35902/LR35902.cs
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@@ -56,7 +56,7 @@ namespace LR35902
private bool Stopped { get; set; }
private bool _deferredInterruptEnable;
public bool EI { get; set; }
#region MWR pin
@@ -196,10 +196,10 @@ namespace LR35902
{
this.prefixCB = false;
if ( this._deferredInterruptEnable)
if (this.EI)
{
this.EnableInterrupts();
this._deferredInterruptEnable = false;
this.EI = false;
}
if (this.MaskedInterrupts != 0)
@@ -235,7 +235,7 @@ namespace LR35902
this.RaiseWR();
this.RaiseRD();
this.RaiseMWR();
this._deferredInterruptEnable = false;
this.EI = false;
}
protected override void HandleRESET()
@@ -839,7 +839,7 @@ namespace LR35902
this.DisableInterrupts();
break;
case 7: // EI
this._deferredInterruptEnable = true;
this.EI = true;
break;
default:
break;

8
LR35902/SM83.HarteTest/Checker.cs
View File

@@ -219,6 +219,12 @@
ie_good = this.Check("IE", final.IE.Value, cpu.IE);
}
var ei_good = true;
if (final.EI is not null)
{
ei_good = this.Check("EI", final.EI.Value, (byte)(cpu.EI ? 1 : 0));
}
if (!f_good)
{
this.Messages.Add($"Expected flags: {LR35902.Disassembler.AsFlags(final.F)}");
@@ -255,7 +261,7 @@
&& d_good && e_good
&& h_good && l_good
&& ime_good
&& ie_good;
&& ie_good && ei_good;
}
private void Raise(string what, ushort expected, ushort actual) => this.Messages.Add($"{what}: expected: {expected:X4}, actual: {actual:X4}");