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Add missing segafruit.cpp source file. [R. Belmont]

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arbee 2022-06-10 11:24:33 -04:00
parent 7534ecd5f6
commit ccfbb57705
1 changed files with 243 additions and 0 deletions
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src/mame/drivers/segafruit.cpp Normal file
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// license:BSD-3-Clause
// copyright-holders:R. Belmont
/************************************************************************************************************
Sega electromechanical fruit machines (834-6912 PCB)
Z80 x2
RF5C68 - sound
TODO: decryption isn't right, or there's more to it. M3001 has somewhat plausible initial startup code
but quickly goes off into the weeds. M4001 isn't plausible even with the fill at the end cleared.
************************************************************************************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/gen_latch.h"
#include "machine/nvram.h"
#include "machine/timer.h"
#include "sound/rf5c68.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
namespace {
class segafruit_state : public driver_device
{
public:
segafruit_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_soundlatch(*this, "soundlatch")
, m_rf5c68(*this, "rf5c68")
{
}
void segafruit(machine_config &config);
void decrypt_m3001();
void decrypt_m4001();
private:
void mem_map(address_map &map);
void io_map(address_map &map);
required_device<z80_device> m_maincpu;
required_device<generic_latch_8_device> m_soundlatch;
required_device<rf5c68_device> m_rf5c68;
};
void segafruit_state::mem_map(address_map &map)
{
map(0x0000, 0x7fff).rom().region("maincpu", 0);
}
void segafruit_state::io_map(address_map &map)
{
}
static INPUT_PORTS_START(segafruit)
INPUT_PORTS_END
void segafruit_state::decrypt_m3001()
{
uint8_t *rom = memregion("maincpu")->base();
for (int i = 0; i < 0x8000; i++)
{
rom[i] ^= 0x28;
if (BIT(i, 12))
{
if (BIT(i, 4))
{
if (BIT(i, 8))
{
rom[i] ^= 0x80;
}
else
{
if (BIT(i, 0))
{
rom[i] ^= 0x80;
}
}
}
else
{
if (!(BIT(i, 0)))
{
rom[i] ^= 0x80;
}
}
}
else
{
if (BIT(i, 4))
{
if (BIT(i, 0))
{
rom[i] ^= 0x80;
}
}
else
{
rom[i] ^= 0x80;
}
}
}
}
void segafruit_state::decrypt_m4001()
{
uint8_t *rom = memregion("maincpu")->base();
for (int i = 0; i < 0x8000; i++)
{
if (BIT(i, 12))
{
if (BIT(i, 8))
{
if (BIT(i, 4))
{
rom[i] ^= 0x20;
}
else
{
if (BIT(i, 0))
{
rom[i] ^= 0x80;
}
else
{
rom[i] ^= 0x08;
}
}
}
else
{
if (BIT(i, 4))
{
rom[i] ^= 0x20;
}
else
{
if (BIT(i, 0))
{
rom[i] ^= 0x28;
}
else
{
rom[i] ^= 0x08;
}
}
}
}
else
{
if (BIT(i, 8))
{
if (BIT(i, 4))
{
if (BIT(i, 0))
{
rom[i] ^= 0x88;
}
}
else
{
if (BIT(i, 0))
{
rom[i] ^= 0x80;
}
else
{
rom[i] ^= 0x08;
}
}
}
else
{
if (BIT(i, 0))
{
if (BIT(i, 4))
{
rom[i] ^= 0x88;
}
else
{
rom[i] ^= 0x28;
}
}
}
}
}
}
void segafruit_state::segafruit(machine_config & config)
{
Z80(config, m_maincpu, 4'000'000);
m_maincpu->set_addrmap(AS_PROGRAM, &segafruit_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &segafruit_state::io_map);
GENERIC_LATCH_8(config, m_soundlatch);
SPEAKER(config, "lspeaker").front_left();
SPEAKER(config, "rspeaker").front_right();
RF5C68(config, m_rf5c68, XTAL(8'000'000));
m_rf5c68->add_route(0, "lspeaker", 0.40);
m_rf5c68->add_route(1, "rspeaker", 0.40);
}
ROM_START(m4001)
ROM_REGION(0x8000, "maincpu", 0)
ROM_LOAD("epr-a12334.ic46", 0x000000, 0x008000, CRC(d56dbf57) SHA1(94f0ca78c14852a0fb12ad9ac9ce35fe0c19f113))
ROM_REGION(0x4000, "soundcpu", 0)
ROM_LOAD("epr-12335.ic51", 0x000000, 0x004000, CRC(d5ee7239) SHA1(9dad92623c8d732d26fffab8e50cd74616e2ac24))
ROM_REGION(0x20000, "rf5c68", 0)
ROM_LOAD("epr-12332.ic38", 0x000000, 0x010000, CRC(26b8a8ff) SHA1(2f0aa625d4162d63265618691701dc40593bdbdf))
ROM_LOAD("epr-12333.ic24", 0x010000, 0x010000, CRC(b9db6c6e) SHA1(fc4610abd593e7f54422f4dcd2ff0170d6221d65))
ROM_END
ROM_START(m3001)
ROM_REGION(0x8000, "maincpu", 0)
ROM_LOAD("epr-12602.ic46", 0x000000, 0x008000, CRC(00445ca5) SHA1(8aaa2117b5a3e36fcb5ef9b24258390ab4585163))
ROM_REGION(0x4000, "soundcpu", 0)
ROM_LOAD("epr-12603.ic51", 0x000000, 0x004000, CRC(90663368) SHA1(f5134a0146fabb09c165055b8da542cbb83d717a))
ROM_REGION(0x20000, "rf5c68", 0)
ROM_LOAD("epr-12600.ic38", 0x000000, 0x010000, CRC(99179df6) SHA1(2c26bea6724ded2bef90738fbb4b38d21a1f0906))
ROM_LOAD("epr-12601.ic24", 0x010000, 0x010000, CRC(b1cb4265) SHA1(ce55bd47b0db8ad99233d98d4afc686ab2c66d63))
ROM_END
} // anonymous namespace
// Standalone M1 games
GAME(1990, m3001, 0, segafruit, segafruit, segafruit_state, decrypt_m3001, ROT0, "Sega", "M3001", MACHINE_NOT_WORKING)
GAME(1990, m4001, 0, segafruit, segafruit, segafruit_state, decrypt_m4001, ROT0, "Sega", "M4001", MACHINE_NOT_WORKING)