public static ushort N1ReadWord(int address)
{
address &= 0xfffff;
ushort result = 0;
if (address >= 0 && address + 1 <= 0x1ffff)
{
result = (ushort)(Memory.audiorom[address] + Memory.audiorom[address + 1] * 0x100);
}
else if (address >= 0xa0000 && address + 1 <= 0xa3fff)
{
int offset = address - 0xa0000;
result = (ushort)(Memory.audioram[offset] + Memory.audioram[offset + 1] * 0x100);
}
else if (address >= 0xa8000 && address + 1 <= 0xa803f)
{
int offset = (address - 0xa8000) / 2;
result = Iremga20.irem_ga20_r(offset);
}
else if (address >= 0xa8042 && address + 1 <= 0xa8043)
{
result = YM2151.ym2151_status_port_0_r();
}
else if (address >= 0xa8044 && address + 1 <= 0xa8045)
{
result = m92_soundlatch_r();
}
else if (address >= 0xffff0 && address + 1 <= 0xfffff)
{
int offset = address - 0xe0000;
result = (ushort)(Memory.mainrom[offset] + Memory.mainrom[offset + 1] * 0x100);
}
return(result);
}
public static byte N1ReadByte(int address)
{
address &= 0xfffff;
byte result = 0;
if (address >= 0 && address <= 0x1ffff)
{
result = Memory.audiorom[address];
}
else if (address >= 0xa0000 && address <= 0xa3fff)
{
int offset = address - 0xa0000;
result = Memory.audioram[offset];
}
else if (address >= 0xa8000 && address <= 0xa803f)
{
int offset = (address - 0xa8000) / 2;
result = (byte)Iremga20.irem_ga20_r(offset);
}
else if (address >= 0xa8042 && address <= 0xa8043)
{
result = YM2151.ym2151_status_port_0_r();
}
else if (address >= 0xa8044 && address <= 0xa8045)
{
result = (byte)m92_soundlatch_r();
}
else if (address >= 0xffff0 && address <= 0xfffff)
{
int offset = address - 0xe0000;
result = Memory.mainrom[offset];
}
return(result);
}
