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Synchronise HALT implementation for Intel style processors with the C++ version.

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Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
This commit is contained in:
Adrian Conlon
2019-08-29 09:05:31 +01:00
parent 08111f8590
commit bc491884b0
4 changed files with 9 additions and 34 deletions
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16
Z80/Z80.cs
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@@ -214,7 +214,7 @@ namespace EightBit
{
this.HandleINT();
}
else if (this.Halted)
else if (this.HALT.Lowered())
{
this.Execute(0); // NOP
}
@@ -258,11 +258,7 @@ namespace EightBit
protected override void HandleINT()
{
base.HandleINT();
if (this.Halted)
{
this.Proceed();
}
this.RaiseHALT();
if (this.IFF1)
{
this.DisableInterrupts();
@@ -1149,7 +1145,7 @@ namespace EightBit
}
else
{
this.Halt(); // Exception (replaces LD (HL), (HL))
this.LowerHALT(); // Exception (replaces LD (HL), (HL))
}
this.Tick(4);
@@ -1396,11 +1392,7 @@ namespace EightBit
private void HandleNMI()
{
this.RaiseNMI();
if (this.Halted)
{
this.Proceed();
}
this.RaiseHALT();
this.IFF1 = false;
this.Restart(0x66);
this.Tick(13);