dbowerman/CPU-Simulation
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Created functions to allow for data to be written to and read from memory using bianry strings.

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dbowerman
2026-05-31 20:36:00 -04:00
parent 9efadc3b4a
commit a958d11c4e
13 changed files with 83 additions and 15 deletions
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MC.cs
+52 -13
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@@ -46,19 +46,7 @@ namespace CPUSimulation
Byte[] bytesToWrite;
if (byteCount < _numberOfMemoryBanks)
{
int numberOfPaddingBytes = _numberOfMemoryBanks - byteCount;
bytesToWrite = new Byte[_numberOfMemoryBanks];
for (int i = 0; i < _numberOfMemoryBanks; i++)
{
if (i < numberOfPaddingBytes)
{
bytesToWrite[i] = new Byte(new Bit[8]{ new Bit(false), new Bit(false), new Bit(false), new Bit(false), new Bit(false), new Bit(false), new Bit(false), new Bit(false) });
}
else
{
bytesToWrite[i] = byteData[i - numberOfPaddingBytes];
}
}
bytesToWrite = GeneratePaddingBytes(byteData, byteCount);
}
else if (data.GetByteCount() > _numberOfMemoryBanks)
{
@@ -76,6 +64,36 @@ namespace CPUSimulation
}
}
public void Write(string address, string data)
{
if(address.Length != 16)
{
throw new ArgumentException("Address must be 16 bits long.");
}
if (data.Length % 8 != 0)
{
throw new ArgumentException("Data must be a multiple of 8 bits long.");
}
int byteCount = data.Length / 8;
if (byteCount > _numberOfMemoryBanks)
{
throw new ArgumentException($"Data must consist of {_numberOfMemoryBanks} bytes or less.");
}
if (byteCount < _numberOfMemoryBanks)
{
data = data.PadLeft(_numberOfMemoryBanks * 8, '0');
}
for (int i = 0; i < _numberOfMemoryBanks; i++)
{
string byteString = data.Substring(i * 8, 8);
Byte byteData = new Byte(byteString);
_memoryBanks[i].Write(address, byteData);
}
}
private void AddressOkay(Int16 address)
{
if (address < 0 || address >= _memoryBankSize)
@@ -83,5 +101,26 @@ namespace CPUSimulation
throw new ArgumentOutOfRangeException(nameof(address), $"Address must be between 0 and {_memoryBankSize - 1}.");
}
}
private Byte[] GeneratePaddingBytes(Byte[] byteData, int byteCount)
{
Byte[] bytesToWrite;
int numberOfPaddingBytes = _numberOfMemoryBanks - byteCount;
bytesToWrite = new Byte[_numberOfMemoryBanks];
for (int i = 0; i < _numberOfMemoryBanks; i++)
{
if (i < numberOfPaddingBytes)
{
Bit bit = new Bit();
bytesToWrite[i] = new Byte(new Bit[8] { bit, bit, bit, bit, bit, bit, bit, bit });
}
else
{
bytesToWrite[i] = byteData[i - numberOfPaddingBytes];
}
}
return bytesToWrite;
}
}
}