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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/pc1350.h"
#include "machine/ram.h"
void pc1350_state::out_b_w(uint8_t data)
{
m_outb = data;
}
void pc1350_state::out_c_w(uint8_t data)
{
}
uint8_t pc1350_state::in_a_r()
{
int data = m_outa;
int t = keyboard_line_r();
for (int bit = 0; bit < 6; bit++)
if (BIT(t, bit))
data |= m_keys[bit]->read();
for (int bit = 0, key = 6; bit < 2; bit++, key++)
if (BIT(m_outa, bit))
data |= m_keys[key]->read();
if (BIT(m_outa, 2))
{
data |= m_keys[8]->read();
/* At Power Up we fake a 'CLS' pressure */
if (m_power)
data |= 0x08;
}
for (int bit = 3, key = 9; bit < 5; bit++, key++)
if (BIT(m_outa, bit))
data |= m_keys[key]->read();
if (m_outa & 0xc0)
data |= m_keys[11]->read();
// missing lshift
return data;
}
uint8_t pc1350_state::in_b_r()
{
return m_outb;
}
void pc1350_state::machine_start()
{
pocketc_state::machine_start();
address_space &space = m_maincpu->space(AS_PROGRAM);
space.install_ram(0x6000, 0x6fff, &m_ram->pointer()[0x0000]);
if (m_ram->size() >= 0x3000)
{
space.install_ram(0x4000, 0x5fff, &m_ram->pointer()[0x1000]);
}
else
{
space.nop_readwrite(0x4000, 0x5fff);
}
if (m_ram->size() >= 0x5000)
{
space.install_ram(0x2000, 0x3fff, &m_ram->pointer()[0x3000]);
}
else
{
space.nop_readwrite(0x2000, 0x3fff);
}
m_ram_nvram->set_base(memregion("maincpu")->base() + 0x2000, 0x5000);
}
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