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// license:GPL-2.0+
// copyright-holders:Peter Trauner
#include "emu.h"
#include "cpu/sc61860/sc61860.h"
#include "includes/pocketc.h"
#include "includes/pc1251.h"
/* C-CE while reset, program will not be destroyed! */
WRITE8_MEMBER(pc1251_state::pc1251_outa)
{
m_outa = data;
}
WRITE8_MEMBER(pc1251_state::pc1251_outb)
{
m_outb = data;
}
WRITE8_MEMBER(pc1251_state::pc1251_outc)
{
}
READ8_MEMBER(pc1251_state::pc1251_ina)
{
int data = m_outa;
if (m_outb & 0x01)
{
data |= ioport("KEY0")->read();
/* At Power Up we fake a 'CL' pressure */
if (m_power)
data |= 0x02; // problem with the deg lcd
}
if (m_outb & 0x02)
data |= ioport("KEY1")->read();
if (m_outb & 0x04)
data |= ioport("KEY2")->read();
if (m_outa & 0x01)
data |= ioport("KEY3")->read();
if (m_outa & 0x02)
data |= ioport("KEY4")->read();
if (m_outa & 0x04)
data |= ioport("KEY5")->read();
if (m_outa & 0x08)
data |= ioport("KEY6")->read();
if (m_outa & 0x10)
data |= ioport("KEY7")->read();
if (m_outa & 0x20)
data |= ioport("KEY8")->read();
if (m_outa & 0x40)
data |= ioport("KEY9")->read();
return data;
}
READ8_MEMBER(pc1251_state::pc1251_inb)
{
int data = m_outb;
if (m_outb & 0x08)
data |= (ioport("MODE")->read() & 0x07);
return data;
}
READ_LINE_MEMBER(pc1251_state::pc1251_brk)
{
return (ioport("EXTRA")->read() & 0x01);
}
READ_LINE_MEMBER(pc1251_state::pc1251_reset)
{
return (ioport("EXTRA")->read() & 0x02);
}
void pc1251_state::machine_start()
{
UINT8 *ram = memregion("maincpu")->base() + 0x8000;
UINT8 *cpu = m_maincpu->internal_ram();
machine().device<nvram_device>("cpu_nvram")->set_base(cpu, 96);
machine().device<nvram_device>("ram_nvram")->set_base(ram, 0x4800);
}
MACHINE_START_MEMBER(pc1251_state,pc1260 )
{
UINT8 *ram = memregion("maincpu")->base() + 0x4000;
UINT8 *cpu = m_maincpu->internal_ram();
machine().device<nvram_device>("cpu_nvram")->set_base(cpu, 96);
machine().device<nvram_device>("ram_nvram")->set_base(ram, 0x2800);
}
void pc1251_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
switch (id)
{
case TIMER_POWER_UP:
m_power = 0;
break;
default:
assert_always(FALSE, "Unknown id in pc1251_state::device_timer");
}
}
DRIVER_INIT_MEMBER(pc1251_state,pc1251)
{
int i;
UINT8 *gfx = memregion("gfx1")->base();
for (i=0; i<128; i++) gfx[i]=i;
m_power = 1;
timer_set(attotime::from_seconds(1), TIMER_POWER_UP);
}
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