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// license:BSD-3-Clause
// copyright-holders:David Haywood
/******************************************************************************
Easy Karaoke (c)IVL Technologies
A version of this was also released in France by Lexibook, with French songs
This uses
Clarity 4.3 ARM
SVI1186
NV0165 0317
Sound Vision Inc.
an overview for 4.1 and 4.2 can be found at
http://web.archive.org/web/20031212120255fw_/http://www.soundvisioninc.com/OEMProducts/C4datasheet072401.pdf
Amusingly this datasheet advertises 'MAME Game emulation' as one of the capabilities despite the chip
clocking in at only 72Mhz
Support chip is
IVL
Technologies
ICS0253R1.0
UA1068ABK-RD
0327 A01491F
RAM chip is
IC42S16400-7T
ROM is
IVL
Technologies
ICS0303-B
(c)1985-1986
3415BAI THAI
--------------
Cartridges contain:
1x MX 29LV040TC-90 (Flash ROM)
1x HC573A
1x ICSI IC89LV52A-24PQ (80C52 MCU with 8KBytes Flash memory, can be read protected)
presumably manages a serial protocol to send data to the main unit
*******************************************************************************/
#include "emu.h"
#include "cpu/arm7/arm7.h"
#include "cpu/arm7/arm7core.h"
#include "bus/generic/slot.h"
#include "bus/generic/carts.h"
#include "screen.h"
#include "softlist_dev.h"
#include "speaker.h"
class easy_karaoke_state : public driver_device
{
public:
easy_karaoke_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_screen(*this, "screen")
, m_cart(*this, "cartslot")
, m_cart_region(nullptr)
{ }
void easy_karaoke(machine_config &config);
private:
virtual void machine_start() override;
virtual void machine_reset() override;
void easy_karaoke_base(machine_config &config);
DECLARE_DEVICE_IMAGE_LOAD_MEMBER(cart_load);
required_device<cpu_device> m_maincpu;
required_device<screen_device> m_screen;
required_device<generic_slot_device> m_cart;
memory_region *m_cart_region;
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
uint32_t a000004_r();
void arm_map(address_map &map);
};
uint32_t easy_karaoke_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
return 0;
}
void easy_karaoke_state::machine_start()
{
// if there's a cart, override the standard mapping
if (m_cart && m_cart->exists())
{
m_cart_region = memregion(std::string(m_cart->tag()) + GENERIC_ROM_REGION_TAG);
}
}
void easy_karaoke_state::machine_reset()
{
m_maincpu->set_state_int(ARM7_R15, 0x04000000);
}
DEVICE_IMAGE_LOAD_MEMBER(easy_karaoke_state::cart_load)
{
uint32_t size = m_cart->common_get_size("rom");
m_cart->rom_alloc(size, GENERIC_ROM16_WIDTH, ENDIANNESS_LITTLE);
m_cart->common_load_rom(m_cart->get_rom_base(), size, "rom");
return image_init_result::PASS;
}
static INPUT_PORTS_START( easy_karaoke )
INPUT_PORTS_END
uint32_t easy_karaoke_state::a000004_r()
{
return machine().rand();
}
void easy_karaoke_state::arm_map(address_map &map)
{
map(0x00000000, 0x007fffff).ram();
map(0x04000000, 0x043fffff).rom().region("maincpu", 0);
map(0x0a000004, 0x0a000007).r(FUNC(easy_karaoke_state::a000004_r));
}
void easy_karaoke_state::easy_karaoke_base(machine_config &config)
{
ARM9(config, m_maincpu, 72000000); // ARM 720 core
m_maincpu->set_addrmap(AS_PROGRAM, &easy_karaoke_state::arm_map);
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_refresh_hz(60);
m_screen->set_size(320, 262);
m_screen->set_visarea(0, 320-1, 0, 240-1);
m_screen->set_screen_update(FUNC(easy_karaoke_state::screen_update));
SPEAKER(config, "lspeaker").front_left();
SPEAKER(config, "rspeaker").front_right();
GENERIC_CARTSLOT(config, m_cart, generic_plain_slot, "easy_karaoke_cart");
m_cart->set_width(GENERIC_ROM16_WIDTH);
m_cart->set_device_load(FUNC(easy_karaoke_state::cart_load));
}
void easy_karaoke_state::easy_karaoke(machine_config &config)
{
easy_karaoke_base(config);
SOFTWARE_LIST(config, "cart_list").set_original("easy_karaoke_cart");
}
ROM_START( easykara )
ROM_REGION( 0x400000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "ics0303-b.bin", 0x000000, 0x400000, CRC(43d86ae8) SHA1(219dcbf72b92d1b7e00f78f237194ab47dc08f1b) )
ROM_END
CONS( 2004, easykara, 0, 0, easy_karaoke, easy_karaoke, easy_karaoke_state, empty_init, "IVL Technologies", "Easy Karaoke Groove Station", MACHINE_IS_SKELETON )
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