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Diffstat (limited to 'src/mame/drivers/actions_atj2279b.cpp')
-rw-r--r--src/mame/drivers/actions_atj2279b.cpp98
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diff --git a/src/mame/drivers/actions_atj2279b.cpp b/src/mame/drivers/actions_atj2279b.cpp
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+// license:BSD-3-Clause
+// copyright-holders:David Haywood
+/******************************************************************************
+
+ System is fairly barebones
+ Main PCB has the SoC, RAM, ROM
+ connects to other PCBs with various types of slots (USB, SD etc.)
+ (ADD FULL DETAILS)
+
+ TODO: everything - emulate the SoC
+
+ Presumably has an internal bootstrap (at least) to boot from the NAND
+
+ --
+
+ reviews for this device were less than favourable with many comments
+ about how the SNES and Arcade games often did not run at full speed
+ and how the overall quality of emulation was unremarkable
+
+*******************************************************************************/
+
+#include "emu.h"
+
+#include "cpu/arm7/arm7.h"
+
+#include "speaker.h"
+#include "screen.h"
+
+
+class actions_atj2279b_state : public driver_device
+{
+public:
+ actions_atj2279b_state(const machine_config &mconfig, device_type type, const char *tag) :
+ driver_device(mconfig, type, tag),
+ m_maincpu(*this, "arm7")
+ { }
+
+ void actions_atj2279b(machine_config &config);
+
+private:
+ virtual void machine_start() override;
+ virtual void machine_reset() override;
+
+ uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
+
+
+ void atj2279b_map(address_map &map);
+
+ required_device<arm7_cpu_device> m_maincpu;
+};
+
+void actions_atj2279b_state::atj2279b_map(address_map &map)
+{
+}
+
+void actions_atj2279b_state::machine_start()
+{
+}
+
+void actions_atj2279b_state::machine_reset()
+{
+}
+
+static INPUT_PORTS_START( actions_atj2279b )
+INPUT_PORTS_END
+
+
+uint32_t actions_atj2279b_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
+{
+ return 0;
+}
+
+void actions_atj2279b_state::actions_atj2279b(machine_config &config)
+{
+ ARM7_BE(config, m_maincpu, 100'000'000); // unknown ARM type in SoC (are there any documents?) probably much newer than this
+ m_maincpu->set_addrmap(AS_PROGRAM, &actions_atj2279b_state::atj2279b_map);
+
+ 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(actions_atj2279b_state::screen_update));
+
+ SPEAKER(config, "lspeaker").front_left();
+ SPEAKER(config, "rspeaker").front_right();
+}
+
+ROM_START( rbitgen )
+ ROM_REGION32_BE( 0x21000000, "nand", 0 ) // NAND dump
+ //TOSHIBA
+ // TC58NVG2S3?A00 (there is a yellow stripe on the label before A00 obscuring the text)
+ ROM_LOAD16_WORD_SWAP( "nand.bin", 0x000000, 0x21000000, CRC(92576add) SHA1(1fe61ef1d2dd24e5b5d48c477846ef0c83ec6568) )
+ROM_END
+
+
+// year, name, parent, compat, machine, input, class, init, company, fullname, flags
+CONS( 2016, rbitgen, 0, 0, actions_atj2279b, actions_atj2279b, actions_atj2279b_state, empty_init, "Retro-Bit", "Generations (Retro-Bit)", MACHINE_IS_SKELETON )