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/***************************************************************************

    netlist.c

    Discrete netlist implementation.

****************************************************************************

    Couriersud reserves the right to license the code under a less restrictive
    license going forward.

    Copyright Nicola Salmoria and the MAME team
    All rights reserved.

    Redistribution and use of this code or any derivative works are permitted
    provided that the following conditions are met:

    * Redistributions may not be sold, nor may they be used in a commercial
    product or activity.

    * Redistributions that are modified from the original source must include the
    complete source code, including the source code for all components used by a
    binary built from the modified sources. However, as a special exception, the
    source code distributed need not include anything that is normally distributed
    (in either source or binary form) with the major components (compiler, kernel,
    and so on) of the operating system on which the executable runs, unless that
    component itself accompanies the executable.

    * Redistributions must reproduce the above copyright notice, this list of
    conditions and the following disclaimer in the documentation and/or other
    materials provided with the distribution.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    POSSIBILITY OF SUCH DAMAGE.

****************************************************************************/

#include "emu.h"
#include "netlist.h"
#include "netlist/nl_base.h"
#include "netlist/nl_setup.h"
#include "netlist/devices/net_lib.h"
#include "debugger.h"

//#define LOG_DEV_CALLS(x)   printf x
#define LOG_DEV_CALLS(x)   do { } while (0)

const device_type NETLIST_CORE = &device_creator<netlist_mame_device_t>;
const device_type NETLIST_CPU = &device_creator<netlist_mame_cpu_device_t>;
const device_type NETLIST_ANALOG_INPUT = &device_creator<netlist_mame_analog_input_t>;
const device_type NETLIST_LOGIC_INPUT = &device_creator<netlist_mame_logic_input_t>;

// ----------------------------------------------------------------------------------------
// netlist_mame_analog_input_t
// ----------------------------------------------------------------------------------------

netlist_mame_analog_input_t::netlist_mame_analog_input_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
		: device_t(mconfig, NETLIST_ANALOG_INPUT, "netlist analog input", tag, owner, clock, "netlist_analog_input", __FILE__),
			netlist_mame_sub_interface(*this),
			m_param(0),
			m_offset(0.0),
			m_mult(1.0),
			m_auto_port(true),
			m_param_name("")
{
}

void netlist_mame_analog_input_t::static_set_name(device_t &device, const char *param_name)
{
	netlist_mame_analog_input_t &netlist = downcast<netlist_mame_analog_input_t &>(device);
	netlist.m_param_name = param_name;
}

void netlist_mame_analog_input_t::static_set_mult_offset(device_t &device, const double mult, const double offset)
{
	netlist_mame_analog_input_t &netlist = downcast<netlist_mame_analog_input_t &>(device);
	netlist.m_mult = mult;
	netlist.m_offset = offset;
	// disable automatic scaling for ioports
	netlist.m_auto_port = false;
}

void netlist_mame_analog_input_t::device_start()
{
	LOG_DEV_CALLS(("start %s\n", tag()));
	netlist_param_t *p = downcast<netlist_mame_device_t *>(this->owner())->setup().find_param(m_param_name);
	m_param = dynamic_cast<netlist_param_double_t *>(p);
	if (m_param == NULL)
	{
		fatalerror("device %s wrong parameter type for %s\n", basetag(), m_param_name.cstr());
	}
}

netlist_mame_logic_input_t::netlist_mame_logic_input_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
		: device_t(mconfig, NETLIST_ANALOG_INPUT, "netlist analog input", tag, owner, clock, "netlist_analog_input", __FILE__),
			netlist_mame_sub_interface(*this),
			m_param(0),
			m_mask(0xffffffff),
			m_shift(0),
			m_param_name("")
{
}

void netlist_mame_logic_input_t::static_set_params(device_t &device, const char *param_name, const UINT32 mask, const UINT32 shift)
{
	netlist_mame_logic_input_t &netlist = downcast<netlist_mame_logic_input_t &>(device);
	netlist.m_param_name = param_name;
	netlist.m_shift = shift;
	netlist.m_mask = mask;
}

void netlist_mame_logic_input_t::device_start()
{
	LOG_DEV_CALLS(("start %s\n", tag()));
	netlist_param_t *p = downcast<netlist_mame_device_t *>(this->owner())->setup().find_param(m_param_name);
	m_param = dynamic_cast<netlist_param_int_t *>(p);
	if (m_param == NULL)
	{
		fatalerror("device %s wrong parameter type for %s\n", basetag(), m_param_name.cstr());
	}
}


// ----------------------------------------------------------------------------------------
// netlist_mame_device_t
// ----------------------------------------------------------------------------------------

static ADDRESS_MAP_START(program_dummy, AS_PROGRAM, 8, netlist_mame_device_t)
	AM_RANGE(0x000, 0x3ff) AM_ROM
ADDRESS_MAP_END

netlist_mame_device_t::netlist_mame_device_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
	: device_t(mconfig, NETLIST_CORE, "Netlist core device", tag, owner, clock, "netlist_core", __FILE__),
	    m_icount(0),
        m_div(0),
        m_rem(0),
        m_old(netlist_time::zero),
        m_netlist(NULL),
        m_setup(NULL),
        m_setup_func(NULL)
{
}

netlist_mame_device_t::netlist_mame_device_t(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *file)
    : device_t(mconfig, type, name, tag, owner, clock, shortname, file),
        m_icount(0),
        m_div(0),
        m_rem(0),
        m_old(netlist_time::zero),
        m_netlist(NULL),
        m_setup(NULL),
        m_setup_func(NULL)
{
}

void netlist_mame_device_t::static_set_constructor(device_t &device, void (*setup_func)(netlist_setup_t &))
{
	LOG_DEV_CALLS(("static_set_constructor\n"));
	netlist_mame_device_t &netlist = downcast<netlist_mame_device_t &>(device);
	netlist.m_setup_func = setup_func;
}

void netlist_mame_device_t::device_config_complete()
{
	LOG_DEV_CALLS(("device_config_complete\n"));
}

void netlist_mame_device_t::device_start()
{
	LOG_DEV_CALLS(("device_start %s\n", tag()));

	//printf("clock is %d\n", clock());

	m_netlist = global_alloc_clear(netlist_mame_t(*this));
	m_setup = global_alloc_clear(netlist_setup_t(*m_netlist));
	netlist().init_object(*m_netlist, "netlist");
	m_setup->init();

	// register additional devices

	m_setup->factory().register_device<nld_analog_callback>( "NETDEV_CALLBACK", "nld_analog_callback", "-");

	m_setup_func(*m_setup);

	/* let sub-devices tweak the netlist */
	for( device_t *d = this->first_subdevice(); d != NULL; d = d->next() )
	{
		netlist_mame_sub_interface *sdev = dynamic_cast<netlist_mame_sub_interface *>(d);
		if( sdev != NULL )
		{
			LOG_DEV_CALLS(("Found subdevice %s/%s\n", d->name(), d->shortname()));
			sdev->custom_netlist_additions(*m_netlist);
		}
	}

	m_setup->start_devices();
	m_setup->resolve_inputs();

    netlist().save(NAME(m_rem));
    netlist().save(NAME(m_div));
    netlist().save(NAME(m_old));

	save_state();

    m_old = netlist_time::zero;
    m_rem = 0;

}

void netlist_mame_device_t::device_clock_changed()
{
    //printf("device_clock_changed\n");
    m_div = netlist_time::from_hz(clock()).as_raw();
    //m_rem = 0;
    NL_VERBOSE_OUT(("Setting clock %" I64FMT "d and divisor %d\n", clockfreq, m_div));
    //printf("Setting clock %d and divisor %d\n", clock(), m_div);
}


void netlist_mame_device_t::device_reset()
{
	LOG_DEV_CALLS(("device_reset\n"));
    m_old = netlist_time::zero;
    m_rem = 0;
	netlist().reset();
}

void netlist_mame_device_t::device_stop()
{
	LOG_DEV_CALLS(("device_stop\n"));
	m_setup->print_stats();

	global_free(m_setup);
	m_setup = NULL;
	global_free(m_netlist);
	m_netlist = NULL;
}

ATTR_COLD void netlist_mame_device_t::device_post_load()
{
	LOG_DEV_CALLS(("device_post_load\n"));

	netlist().post_load();
}

ATTR_COLD void netlist_mame_device_t::device_pre_save()
{
	LOG_DEV_CALLS(("device_pre_save\n"));

	netlist().pre_save();
}

void netlist_mame_device_t::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
}

ATTR_HOT ATTR_ALIGN void netlist_mame_device_t::update_time_x()
{
    const netlist_time delta = netlist().time() - m_old + netlist_time::from_raw(m_rem);
    m_old = netlist().time();
    m_icount -= divu_64x32_rem(delta.as_raw(), m_div, &m_rem);
}

ATTR_HOT ATTR_ALIGN void netlist_mame_device_t::check_mame_abort_slice()
{
    if (m_icount <= 0)
        netlist().abort_current_queue_slice();
}

ATTR_COLD void netlist_mame_device_t::save_state()
{
	for (pstate_entry_t::list_t::entry_t *p = netlist().save_list().first(); p != NULL; p = netlist().save_list().next(p))
	{
		pstate_entry_t *s = p->object();
		NL_VERBOSE_OUT(("saving state for %s\n", s->m_name.cstr()));
		switch (s->m_dt)
		{
			case DT_DOUBLE:
				save_pointer((double *) s->m_ptr, s->m_name, s->m_count);
				break;
			case DT_INT64:
				save_pointer((INT64 *) s->m_ptr, s->m_name, s->m_count);
				break;
			case DT_INT8:
				save_pointer((INT8 *) s->m_ptr, s->m_name, s->m_count);
				break;
			case DT_INT:
				save_pointer((int *) s->m_ptr, s->m_name, s->m_count);
				break;
			case DT_BOOLEAN:
				save_pointer((bool *) s->m_ptr, s->m_name, s->m_count);
				break;
			case DT_CUSTOM:
			case NOT_SUPPORTED:
			default:
				netlist().error("found unsupported save element %s\n", s->m_name.cstr());
				break;
		}
	}

}

// ----------------------------------------------------------------------------------------
// netlist_mame_cpu_device_t
// ----------------------------------------------------------------------------------------

netlist_mame_cpu_device_t::netlist_mame_cpu_device_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
    : netlist_mame_device_t(mconfig, NETLIST_CPU, "Netlist cpu device", tag, owner, clock, "netlist_cpu", __FILE__),
        device_execute_interface(mconfig, *this),
        device_state_interface(mconfig, *this),
        device_disasm_interface(mconfig, *this),
        device_memory_interface(mconfig, *this),
        m_program_config("program", ENDIANNESS_LITTLE, 8, 12, 0, ADDRESS_MAP_NAME(program_dummy))
{
}


void netlist_mame_cpu_device_t::device_start()
{
    netlist_mame_device_t::device_start();

    LOG_DEV_CALLS(("device_start %s\n", tag()));

    // State support

    state_add(STATE_GENPC, "curpc", m_genPC).noshow();

    for (int i=0; i < netlist().m_nets.count(); i++)
    {
        netlist_net_t *n = netlist().m_nets[i];
        if (n->isRailNet())
        {
            state_add(i*2, n->name(), n->Q_state_ptr());
        }
        else
        {
            state_add(i*2+1, n->name(), n->Q_Analog_state_ptr()).formatstr("%20s");
        }
    }

    // set our instruction counter
    m_icountptr = &m_icount;
}

ATTR_COLD UINT64 netlist_mame_cpu_device_t::execute_clocks_to_cycles(UINT64 clocks) const
{
	return clocks;
}

ATTR_COLD UINT64 netlist_mame_cpu_device_t::execute_cycles_to_clocks(UINT64 cycles) const
{
	return cycles;
}

ATTR_COLD offs_t netlist_mame_cpu_device_t::disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options)
{
	//char tmp[16];
	unsigned startpc = pc;
	int relpc = pc - m_genPC;
	//UINT16 opcode = (oprom[pc - startpc] << 8) | oprom[pc+1 - startpc];
	//UINT8 inst = opcode >> 13;

	if (relpc >= 0 && relpc < netlist().queue().count())
	{
		//            sprintf(buffer, "%04x %02d %s", pc, relpc, netlist().queue()[netlist().queue().count() - relpc - 1].object().name().cstr());
		int dpc = netlist().queue().count() - relpc - 1;
		sprintf(buffer, "%c %s @%10.7f", (relpc == 0) ? '*' : ' ', netlist().queue()[dpc].object()->name().cstr(),
				netlist().queue()[dpc].time().as_double());
	}
	else
		sprintf(buffer, "%s", "");
	pc+=1;
	return (pc - startpc);
}

ATTR_HOT void netlist_mame_cpu_device_t::execute_run()
{
	bool check_debugger = ((device_t::machine().debug_flags & DEBUG_FLAG_ENABLED) != 0);
	// debugging
	//m_ppc = m_pc; // copy PC to previous PC
	if (check_debugger)
	{
		while (m_icount > 0)
		{
			m_genPC++;
			m_genPC &= 255;
			debugger_instruction_hook(this, m_genPC);
			netlist().process_queue(netlist_time::from_raw(m_div));
	        update_time_x();
		}
	}
	else
	{
        netlist().process_queue(netlist_time::from_raw(m_div) * m_icount);
        update_time_x();
	}
}