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Add easy to use Register16 assignment methods

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This commit is contained in:
Adrian Conlon
2024-07-01 23:27:35 +01:00
parent a9020ef0f0
commit 0c8ed57b0d
9 changed files with 98 additions and 112 deletions
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EightBit/Processor.cs
+11 -20
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@@ -138,15 +138,13 @@ namespace EightBit
protected void MemoryWrite(byte low, byte high)
{
this.Bus.Address.Low = low;
this.Bus.Address.High = high;
this.Bus.Address.Assign(low, high);
this.MemoryWrite();
}
protected void MemoryWrite(byte low, byte high, byte data)
{
this.Bus.Address.Low = low;
this.Bus.Address.High = high;
this.Bus.Address.Assign(low, high);
this.MemoryWrite(data);
}
@@ -172,8 +170,7 @@ namespace EightBit
protected byte MemoryRead(byte low, byte high)
{
this.Bus.Address.Low = low;
this.Bus.Address.High = high;
this.Bus.Address.Assign(low, high);
return this.MemoryRead();
}
@@ -191,9 +188,9 @@ namespace EightBit
protected byte FetchByte()
{
var returned = this.MemoryRead(this.PC);
this.Bus.Address.Assign(this.PC);
this.PC.Word++;
return returned;
return this.MemoryRead();
}
protected abstract Register16 GetWord();
@@ -209,8 +206,7 @@ namespace EightBit
protected Register16 GetWordPaged(byte page, byte offset)
{
this.Bus.Address.Low = offset;
this.Bus.Address.High = page;
this.Bus.Address.Assign(offset, page);
return this.GetWordPaged();
}
@@ -223,8 +219,7 @@ namespace EightBit
protected void SetWordPaged(byte page, byte offset, Register16 value)
{
this.Bus.Address.Low = offset;
this.Bus.Address.High = page;
this.Bus.Address.Assign(offset, page);
this.SetWordPaged(value);
}
@@ -233,8 +228,7 @@ namespace EightBit
protected void FetchWordAddress()
{
this.FetchWord();
this.Bus.Address.Low = this.Intermediate.Low;
this.Bus.Address.High = this.Intermediate.High;
this.Bus.Address.Assign(this.Intermediate);
}
protected abstract void Push(byte value);
@@ -253,8 +247,7 @@ namespace EightBit
protected Register16 GetWord(Register16 address)
{
this.Bus.Address.Low = address.Low;
this.Bus.Address.High = address.High;
this.Bus.Address.Assign(address);
return this.GetWord();
}
@@ -266,8 +259,7 @@ namespace EightBit
protected void SetWord(Register16 address, Register16 value)
{
this.Bus.Address.Low = address.Low;
this.Bus.Address.High = address.High;
this.Bus.Address.Assign(address);
this.SetWord(value);
}
@@ -275,8 +267,7 @@ namespace EightBit
protected void Jump(Register16 destination)
{
this.PC.Low = destination.Low;
this.PC.High = destination.High;
this.PC.Assign(destination);
}
protected void Call(ushort destination)