private uint onMemoryAccessRead(object sender, MemoryAccessReadEventArgs mra)
{
if (mra.Size == MemorySize.Word && Utils.isValidAddress(mra.Address, MemorySize.Word))
{
Uart uart = ((mra.Address & 0x01d04000) == 0) ? mUart0 : mUart1;
if (uart == null)
{
return(0);
}
}
return(0);
}//onMemoryAccessRead
}//onMemoryAccessRead
private void onMemoryAccessWrite(object sender, MemoryAccessWriteEventArgs mwa)
{
if (mwa.Size != MemorySize.Word || Utils.isValidAddress(mwa.Address, MemorySize.Word))
{
return;
}
Uart uart = ((mwa.Address & 0x01d04000) == 0) ? mUart0 : mUart1;
switch (mwa.Address & 0x01d00000)
{
//ULCON:Uart Line Control Register
case 0x01d00000:
uart.ULCON = mwa.Value;
break;
//UCON:Uart Control Register
case 0x01d00004:
uart.UCON = mwa.Value;
break;
//UFCON:Uart FIFO Control Register
case 0x01d00008:
uart.UFCON = mwa.Value;
break;
//UMCON:Uart Modem Control Register
case 0x01d0000c:
uart.UMCON = mwa.Value;
break;
//UTRSTAT:Uart Tx/Rx Status Register (read-only)
case 0x01d00010:
break;
//UERSTAT:Uart Error Status Register
case 0x01d00014:
uart.UERSTAT = mwa.Value;
break;
//UFSTAT:Uart FIFO Status Register (read-only)
case 0x01d00018:
//uart.UFSTAT = mwa.Value;
break;
//UMSTAT:Uart Modem Status Register
case 0x01d0001c:
//uart.UMSTAT = mwa.Value;
break;
//UTXH:Uart Transmit Holding(Buffer) Register
case 0x01d00020:
uart.UTXH = mwa.Value;
break;
//URXH:Uart Receive Holding(Buffer) Register
case 0x01d00024:
//uart.URXH = mwa.Value;
break;
//UBRDIV:Uart Baud Rate Division Register
case 0x01d00028:
uart.UBRDIV = mwa.Value;
break;
}
} //onMemoryAccessWrite
