C++ (Cpp) pcw16_keyboard_refresh_outputs Examples

Example #1

File: pcw16.c Project: clobber/UME

void pcw16_state::pcw16_keyboard_set_clock_state(int state)
{
	m_keyboard_bits &= ~PCW16_KEYBOARD_CLOCK;

	if (state)
	{
		m_keyboard_bits |= PCW16_KEYBOARD_CLOCK;
	}

	pcw16_keyboard_refresh_outputs();
}

Example #2

File: pcw16.c Project: amadvance/advancemame

static WRITE8_HANDLER(pcw16_keyboard_control_w)
{
	//logerror("Keyboard control w: %02x\n",data);

	pcw16_keyboard_previous_state = pcw16_keyboard_state;

	/* if set, set parity */
	if (data & 0x080)
	{
		pcw16_keyboard_state |= PCW16_KEYBOARD_PARITY_MASK;
	}

	/* clear read/write bits */
	pcw16_keyboard_state &=
		~(PCW16_KEYBOARD_FORCE_KEYBOARD_CLOCK |
			PCW16_KEYBOARD_TRANSMIT_MODE);
	/* set read/write bits from data */
	pcw16_keyboard_state |= (data & 0x03);

	if (data & PCW16_KEYBOARD_RESET_INTERFACE)
	{
		pcw16_keyboard_reset();
	}

	if (data & PCW16_KEYBOARD_TRANSMIT_MODE)
	{
		/* force clock changed */
		if (((pcw16_keyboard_state^pcw16_keyboard_previous_state) & PCW16_KEYBOARD_FORCE_KEYBOARD_CLOCK)!=0)
		{
			/* just cleared? */
			if ((pcw16_keyboard_state & PCW16_KEYBOARD_FORCE_KEYBOARD_CLOCK)==0)
			{

				/* write */
				/* busy */
				pcw16_keyboard_state |= PCW16_KEYBOARD_BUSY_STATUS;
				/* keyboard takes data */
				at_keyboard_write(pcw16_keyboard_data_shift);
				/* set clock low - no furthur transmissions */
				pcw16_keyboard_set_clock_state(0);
				/* set int */
				pcw16_keyboard_int(1);
			}
		}


	}

	if (((pcw16_keyboard_state^pcw16_keyboard_previous_state) & PCW16_KEYBOARD_TRANSMIT_MODE)!=0)
	{
		if ((pcw16_keyboard_state & PCW16_KEYBOARD_TRANSMIT_MODE)==0)
		{
			if ((pcw16_system_status & (1<<1))!=0)
			{
				pcw16_keyboard_int(0);
			}
		}
	}

	pcw16_keyboard_refresh_outputs();
}