Function ba0W16

pcsx2/Memory.cpp:261–317

These regs are related to DEV9 and DVE stuff, we don't have to go crazy with this, but this sucks less than the original code

// These regs are related to DEV9 and DVE stuff, we don't have to go crazy with this, but this sucks less than the original code
void ba0W16(u32 mem, u16 value)
{
	//MEM_LOG("ba000000 Memory write16 address %x value %x", mem, value);
	u32 masked_mem = (mem & 0xFF);

	if (masked_mem == 0x6) // Status Reg
	{
		s_ba[0x6] &= ~3;
	}
	else
		s_ba[masked_mem] = value;

	if (masked_mem == 0x00) // Command Execute Reg
	{
		if (s_ba[0x2] == 0x4F || s_ba[0x2] == 0x41)
		{
			DevCon.Warning("Error running DVE command, Control Reg value set to %x", value);
			s_ba_error_detected = true;
		}
		else if (s_ba[masked_mem] & 0x80) // Start executing
		{
			if (s_ba[0x2] == 0x43) // Write Mode
			{
				int size = (s_ba[masked_mem] & 0xF);
				s_ba_current_reg = s_ba[0x10];
				size--;

				// 0x10->0x22 seems to be some sort of FIFO, with 0x10 generally being the register to read/write
				for (int i = 0; i < size; i++)
				{
					s_dve_regs[s_ba_current_reg] = s_ba[0x12 + i];
				}

				s_ba_command_executing = true;
				s_ba_error_detected = false;
			}
			else if (s_ba[0x2] == 0x42) // Read Mode
			{
				int size = (s_ba[masked_mem] & 0xF);

				for (int i = 0; i < size; i++)
					s_ba[0x10 + i] = s_dve_regs[s_ba_current_reg]; // Probably not right but we don't access the real regs, will be enough for now.
				s_ba_command_executing = true;
				s_ba_error_detected = false;
			}
		}
	}
	else if (masked_mem == 0xA) // Power/Standby (?) Reg
	{
		if (value == 0)
			s_ba_error_detected = true;
		else
			s_ba_error_detected = false;

		DevCon.Warning("DVE powered %s", value == 0 ? "off" : "on");
	}
}