/// <summary>
/// Fetch and get 32-bit instruction
/// </summary>
/// <param name="instruction">Fetched instruction</param>
void IRV32Fetch32B.Fetch32B()
{
uint pc_addr = reg_pc.Value & 0xFFFFFFFCU; // Simulate word-address memory address bus
InstructionStream?.Seek(pc_addr, SeekOrigin.Begin);
byte[] buffer = new byte[4];
InstructionStream?.Read(buffer, 0, 4); // Simulate 32-bit memory data bus
// Little endian
if (!BitConverter.IsLittleEndian)
{
Array.Reverse(buffer);
}
fetchRegister.Value = BitConverter.ToUInt32(buffer);
}