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Read port refactoring

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This commit is contained in:
Adrian Conlon
2025-05-06 23:05:51 +01:00
parent a6051a64ab
commit 1a09473b5a
1 changed files with 3 additions and 5 deletions
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Z80/Z80.cs
+3 -5
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@@ -916,9 +916,8 @@ namespace Z80
{
case 0: // Input from port with 16-bit address
this.Bus.Address.Assign(this.BC);
this.MEMPTR.Assign(this.Bus.Address);
this.MEMPTR.Word++;
this.ReadPort();
this.MEMPTR.Word++;
if (y != 6)
{
this.R(y, AccessLevel.WriteOnly) = this.Bus.Data; // IN r[y],(C)
@@ -2157,7 +2156,6 @@ namespace Z80
{
this.Tick();
this.Bus.Address.Assign(this.BC);
this.MEMPTR.Assign(this.Bus.Address);
this.ReadPort();
this.Bus.Address.Assign(this.HL);
this.Tick();
@@ -2360,13 +2358,13 @@ namespace Z80
private void ReadPort(byte port)
{
this.Bus.Address.Assign(port, this.Bus.Data = this.A);
this.MEMPTR.Assign(this.Bus.Address);
++this.MEMPTR.Word;
this.ReadPort();
++this.MEMPTR.Word;
}
private void ReadPort()
{
this.MEMPTR.Assign(this.Bus.Address);
this.Tick(2);
this.LowerIORQ();
this.LowerRD();