Exemplo n.º 1
0
INLINE UINT16 RDPORT_W(int mode, UINT16 addr)
{
	if( mode == 0 )
	{
		return io_read_byte_8((UINT16)(addr)) +
			  (io_read_byte_8((UINT16)(addr+1)) << 8);
	}
	else
	{
		/* how to handle MMU reads? */
		return 0x0000;
	}
}
Exemplo n.º 2
0
INLINE UINT8 RDPORT_B(int mode, UINT16 addr)
{
	if( mode == 0 )
	{
		return io_read_byte_8(addr);
	}
	else
	{
		/* how to handle MMU reads? */
		return 0x00;
	}
}
Exemplo n.º 3
0
UINT8 h8_register_read8(UINT32 address)
{
	UINT8 val;
	UINT8 reg;

	address &= 0xffffff;

	reg = address & 0xff;

	if(reg >= 0x60 && reg <= 0x9f)
	{
		return h8_itu_read8(reg);
	}
	else
	{
		switch(reg)
		{
		case 0xb4: // serial port A status
			val = h8.per_regs[reg];
			val |= 0xc4;		// transmit finished, receive ready, no errors
			break;
		case 0xb5: // serial port A receive
			val = io_read_byte(H8_SERIAL_A);
			break;
		case 0xbc: // serial port B status
			val = h8.per_regs[reg];
			val |= 0xc4;		// transmit finished, receive ready, no errors
			break;
		case 0xbd: // serial port B receive
			val = io_read_byte(H8_SERIAL_B);
			break;
		case 0xe0:
			val = io_read_byte_8(H8_ADC_0_H);
			break;
		case 0xe1:
			val = io_read_byte_8(H8_ADC_0_L);
			break;
		case 0xe2:
			val = io_read_byte_8(H8_ADC_1_H);
			break;
		case 0xe3:
			val = io_read_byte_8(H8_ADC_1_L);
			break;
		case 0xe4:
			val = io_read_byte_8(H8_ADC_2_H);
			break;
		case 0xe5:
			val = io_read_byte_8(H8_ADC_2_L);
			break;
		case 0xe6:
			val = io_read_byte_8(H8_ADC_3_H);
			break;
		case 0xe7:
			val = io_read_byte_8(H8_ADC_3_L);
			break;
		case 0xe8:		// adc status
			val = 0x80;
			break;
		case 0xc7:    		// port 4 data
			val = io_read_byte_8(H8_PORT4);
			break;
		case 0xcb:    		// port 6 data
			val = io_read_byte_8(H8_PORT6);
			break;
		case 0xce:		// port 7 data
			val = io_read_byte_8(H8_PORT7);
			break;
		case 0xcf:		// port 8 data
			val = io_read_byte_8(H8_PORT8);
			break;
		case 0xd2:		// port 9 data
			val = io_read_byte_8(H8_PORT9);
			break;
		case 0xd3:		// port a data
			val = io_read_byte_8(H8_PORTA);
			break;
		case 0xd6:		// port b data
			val = io_read_byte_8(H8_PORTB);
			break;
		default:
			val = h8.per_regs[reg];
			break;
		}
	}

	return val;
}