summaryrefslogtreecommitdiffstatshomepage
path: root/src/mame/drivers/sega_beena.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/mame/drivers/sega_beena.cpp')
-rw-r--r--src/mame/drivers/sega_beena.cpp58
1 files changed, 48 insertions, 10 deletions
diff --git a/src/mame/drivers/sega_beena.cpp b/src/mame/drivers/sega_beena.cpp
index 10ceb7c14c0..28893dd6a66 100644
--- a/src/mame/drivers/sega_beena.cpp
+++ b/src/mame/drivers/sega_beena.cpp
@@ -1,36 +1,46 @@
// license:BSD-3-Clause
-// copyright-holders:David Haywood
+// copyright-holders:R. Belmont
/******************************************************************************
Sega Beena
- non-video 'book' based learning system, like LeapPad etc.
+ apbeena.cpp
- unknown CPU type (inside Sega custom?)
+ Skeleton driver for the Sega Advanced Pico BEENA
+
+ H/W is custom Sega SoC with ARM7TDMI core at 81 MHz.
+
+ TODO:
+ Everything!
+ Needs the internal BIOS dumped.
+ Component list / PCB diagram
cartridge ROM has 'edinburgh' in the header, maybe a system codename?
ROM is also full of OGG files containing the string 'Encoded with Speex speex-1.0.4'
as well as .mid files for music
- TODO: component list!
-
*******************************************************************************/
#include "emu.h"
#include "bus/generic/slot.h"
#include "bus/generic/carts.h"
+#include "cpu/arm7/arm7.h"
#include "softlist.h"
#include "speaker.h"
+#include "screen.h"
+
class sega_beena_state : public driver_device
{
public:
sega_beena_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
+ , m_maincpu(*this, "arm7")
, m_cart(*this, "cartslot")
, m_cart_region(nullptr)
+ , m_bank(*this, "cartbank")
{ }
void sega_beena(machine_config &config);
@@ -39,12 +49,24 @@ private:
virtual void machine_start() override;
virtual void machine_reset() override;
+ uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
+
DECLARE_DEVICE_IMAGE_LOAD_MEMBER(cart);
+ void beena_arm7_map(address_map &map);
+
+ required_device<arm7_cpu_device> m_maincpu;
required_device<generic_slot_device> m_cart;
memory_region *m_cart_region;
+ optional_memory_bank m_bank;
};
+void sega_beena_state::beena_arm7_map(address_map &map)
+{
+ map(0x00000000, 0x000001ff).rom().bankr("cartbank");
+ map(0x80000000, 0x807fffff).rom().bankr("cartbank");
+}
+
void sega_beena_state::machine_start()
{
// if there's a cart, override the standard mapping
@@ -52,6 +74,9 @@ void sega_beena_state::machine_start()
{
std::string region_tag;
m_cart_region = memregion(region_tag.assign(m_cart->tag()).append(GENERIC_ROM_REGION_TAG).c_str());
+
+ m_bank->configure_entries(0, (m_cart_region->bytes() + 0x7fffff) / 0x800000, m_cart_region->base(), 0x800000);
+ m_bank->set_entry(0);
}
}
@@ -66,6 +91,7 @@ DEVICE_IMAGE_LOAD_MEMBER(sega_beena_state, cart)
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;
}
@@ -73,11 +99,22 @@ static INPUT_PORTS_START( sega_beena )
INPUT_PORTS_END
+uint32_t sega_beena_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
+{
+ return 0;
+}
+
void sega_beena_state::sega_beena(machine_config &config)
{
- // unknown CPU
+ ARM7_BE(config, m_maincpu, 81'000'000);
+ m_maincpu->set_addrmap(AS_PROGRAM, &sega_beena_state::beena_arm7_map);
- // no screen
+ screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
+ screen.set_refresh_hz(60);
+ screen.set_vblank_time(ATTOSECONDS_IN_USEC(0));
+ screen.set_size(640, 480);
+ screen.set_visarea(0, 640-1, 0, 480-1);
+ screen.set_screen_update(FUNC(sega_beena_state::screen_update));
SPEAKER(config, "lspeaker").front_left();
SPEAKER(config, "rspeaker").front_right();
@@ -85,15 +122,16 @@ void sega_beena_state::sega_beena(machine_config &config)
GENERIC_CARTSLOT(config, m_cart, generic_plain_slot, "sega_beena_cart");
m_cart->set_width(GENERIC_ROM16_WIDTH);
m_cart->set_device_load(device_image_load_delegate(&sega_beena_state::device_image_load_cart, this));
+ m_cart->set_must_be_loaded(true);
SOFTWARE_LIST(config, "cart_list").set_original("sega_beena_cart");
}
ROM_START( beena )
- ROM_REGION( 0x100000, "maincpu", ROMREGION_ERASEFF )
- // no BIOS or internal to CPU
+ ROM_REGION32_BE( 0x80000, "bios", 0 ) // SoC internal BIOS
+ ROM_LOAD16_WORD_SWAP( "beenabios.bin", 0x000000, 0x080000, NO_DUMP )
ROM_END
// year, name, parent, compat, machine, input, class, init, company, fullname, flags
-CONS( 200?, beena, 0, 0, sega_beena, sega_beena, sega_beena_state, empty_init, "Sega", "Beena", MACHINE_IS_SKELETON )
+CONS( 2009, beena, 0, 0, sega_beena, sega_beena, sega_beena_state, empty_init, "Sega", "Advanced Pico BEENA", MACHINE_IS_SKELETON )