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atari400.cpp: Added 2-port version of a5200, and fixed ANTIC memory size. (#9730)
New working clones -------------------- Atari 5200 (2-port)
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eientei95
GitHub
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@ -265,6 +265,7 @@ public:
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void a800pal(machine_config &config);
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void a400pal(machine_config &config);
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void a5200(machine_config &config);
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void a5200a(machine_config &config);
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void a800(machine_config &config);
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void a1200xl(machine_config &config);
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void a800xlpal(machine_config &config);
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@ -324,7 +325,7 @@ private:
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//required_device<cpu_device> m_maincpu; // maincpu is already contained in atari_common_state
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required_device<ram_device> m_ram;
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required_device<pia6821_device> m_pia;
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optional_device<pia6821_device> m_pia;
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optional_device<dac_bit_interface> m_dac;
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required_memory_region m_region_maincpu;
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optional_device<a800_cart_slot_device> m_cart;
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@ -643,7 +644,7 @@ void a400_state::a5200_mem(address_map &map)
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map(0x0000, 0x3fff).ram();
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map(0x4000, 0xbfff).noprw(); // ROM installed at machine start
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map(0xc000, 0xcfff).rw(m_gtia, FUNC(gtia_device::read), FUNC(gtia_device::write));
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map(0xd400, 0xdfff).rw(m_antic, FUNC(antic_device::read), FUNC(antic_device::write));
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map(0xd400, 0xd4ff).rw(m_antic, FUNC(antic_device::read), FUNC(antic_device::write));
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// 0xe000-0xe7ff - Expansion?
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map(0xe800, 0xefff).rw("pokey", FUNC(pokey_device::read), FUNC(pokey_device::write));
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map(0xf000, 0xffff).rom();
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@ -954,6 +955,31 @@ static INPUT_PORTS_START( a5200 )
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PORT_BIT(0xff, 0x72, IPT_AD_STICK_Y) PORT_SENSITIVITY(JOYSTICK_SENSITIVITY) PORT_KEYDELTA(JOYSTICK_DELTA) PORT_MINMAX(0x00,0xe4) PORT_PLAYER(4)
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INPUT_PORTS_END
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static INPUT_PORTS_START( a5200a )
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PORT_INCLUDE( a5200 )
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PORT_MODIFY("djoy_b") /* lower/upper buttons */
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PORT_BIT(0x04, 0x04, IPT_UNUSED)
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PORT_BIT(0x08, 0x08, IPT_UNUSED)
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PORT_BIT(0x40, 0x40, IPT_UNUSED)
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PORT_BIT(0x80, 0x80, IPT_UNUSED)
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PORT_MODIFY("analog_4")
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PORT_BIT(0xff, 0x72, IPT_UNUSED)
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PORT_MODIFY("analog_5")
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PORT_BIT(0xff, 0x72, IPT_UNUSED)
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PORT_MODIFY("analog_6")
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PORT_BIT(0xff, 0x72, IPT_UNUSED)
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PORT_MODIFY("analog_7")
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PORT_BIT(0xff, 0x72, IPT_UNUSED)
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INPUT_PORTS_END
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/***************************************************************
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Atari 5200 Palette Notes:
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@ -2104,19 +2130,6 @@ void a400_state::atari_common_nodac(machine_config &config)
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PALETTE(config, "palette", FUNC(a400_state::a400_palette), std::size(atari_colors) / 3);
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PIA6821(config, m_pia, 0);
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m_pia->readpa_handler().set_ioport("djoy_0_1");
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m_pia->readpb_handler().set_ioport("djoy_2_3");
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m_pia->ca2_handler().set("sio", FUNC(a8sio_device::motor_w));
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m_pia->cb2_handler().set("fdc", FUNC(atari_fdc_device::pia_cb2_w));
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m_pia->cb2_handler().append("sio", FUNC(a8sio_device::command_w));
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a8sio_device &sio(A8SIO(config, "sio", nullptr));
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//sio.clock_in().set("pokey", FUNC(pokey_device::bclk_w));
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sio.data_in().set("pokey", FUNC(pokey_device::sid_w));
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sio.proceed().set(m_pia, FUNC(pia6821_device::ca1_w));
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sio.interrupt().set(m_pia, FUNC(pia6821_device::cb1_w));
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/* sound hardware */
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SPEAKER(config, "speaker").front_center();
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POKEY(config, m_pokey, pokey_device::FREQ_17_EXACT);
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@ -2154,6 +2167,19 @@ void a400_state::atari_common(machine_config &config)
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m_antic->set_gtia_tag(m_gtia);
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/* devices */
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PIA6821(config, m_pia, 0);
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m_pia->readpa_handler().set_ioport("djoy_0_1");
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m_pia->readpb_handler().set_ioport("djoy_2_3");
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m_pia->ca2_handler().set("sio", FUNC(a8sio_device::motor_w));
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m_pia->cb2_handler().set("fdc", FUNC(atari_fdc_device::pia_cb2_w));
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m_pia->cb2_handler().append("sio", FUNC(a8sio_device::command_w));
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a8sio_device &sio(A8SIO(config, "sio", nullptr));
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//sio.clock_in().set("pokey", FUNC(pokey_device::bclk_w));
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sio.data_in().set("pokey", FUNC(pokey_device::sid_w));
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sio.proceed().set(m_pia, FUNC(pia6821_device::ca1_w));
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sio.interrupt().set(m_pia, FUNC(pia6821_device::cb1_w));
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ATARI_FDC(config, "fdc", 0);
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A800_CART_SLOT(config, "cartleft", a800_left, nullptr);
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@ -2331,7 +2357,7 @@ void a400_state::a5200(machine_config &config)
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m_maincpu->set_addrmap(AS_PROGRAM, &a400_state::a5200_mem);
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TIMER(config, "scantimer").configure_scanline(FUNC(a400_state::a5200_interrupt), "screen", 0, 1);
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// FIXME: should there be anything connected where other system have the fdc?
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// Not used but exposed via expansion port
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m_pokey->serin_r().set_constant(0);
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m_pokey->serout_w().set_nop();
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m_pokey->set_keyboard_callback(FUNC(a400_state::a5200_keypads));
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@ -2344,10 +2370,6 @@ void a400_state::a5200(machine_config &config)
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ATARI_ANTIC(config, m_antic, 0);
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m_antic->set_gtia_tag(m_gtia);
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m_pia->readpa_handler().set_constant(0); // FIXME: is there anything connected here
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m_pia->readpb_handler().set_constant(0); // FIXME: is there anything connected here
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m_pia->cb2_handler().set_nop(); // FIXME: is there anything connected here
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MCFG_MACHINE_START_OVERRIDE( a400_state, a5200 )
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m_screen->set_refresh_hz(antic_device::FRAME_RATE_60HZ);
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@ -2362,6 +2384,38 @@ void a400_state::a5200(machine_config &config)
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RAM(config, m_ram).set_default_size("16K");
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}
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/*
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From Analog Computing Magazine, issue 16 (1984-02):
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Newer releases of the 5200 incorporate some minor hardware changes.
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Controller ports 3 and 4 have been eliminated, making POT4 through
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POT7, TRIG2, TRIG3, and bit 1 of CONSOL useless. A few of the
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connector pins have been redefined. Pin 2 of the I/O expansion
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connector now carries POKEY's Audio Out signal. Three pins on the
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cartridge connector have changed to accomodate the new 2600 adapter.
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The system clock, 02, is output on pin 14, isolated through a diode.
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An alternate video input is taken from pin 24 and is also isolated
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through a diode. Pin 30 provides an alternate audio input.
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There is space on the newer boards for circuitry for a PAL (European
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TV standard) version of the 5200. Also, on power-up, the monitor
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program checks for the PAL version by examining the GTIA register PAL
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after step 2 of the initialization routine. It also checks the
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cartridge program for PAL compatibility. The byte at $BFE7 should
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read $02 if compatible, or $00 if not. This is the only important
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change to the monitor program. There are some additional hardware
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changes, but none affects the machine's operation from the
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programmer's view.
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*/
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void a400_state::a5200a(machine_config &config)
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{
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a5200(config);
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m_pokey->pot_r<4>().set_constant(0);
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m_pokey->pot_r<5>().set_constant(0);
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m_pokey->pot_r<6>().set_constant(0);
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m_pokey->pot_r<7>().set_constant(0);
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}
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/**************************************************************
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*
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@ -2462,10 +2516,15 @@ ROM_END
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ROM_START(a5200)
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ROM_REGION(0x10000, "maincpu", ROMREGION_ERASEFF)
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ROM_SYSTEM_BIOS(0, "default", "a5200")
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ROMX_LOAD( "5200.rom", 0xf800, 0x0800, CRC(4248d3e3) SHA1(6ad7a1e8c9fad486fbec9498cb48bf5bc3adc530), ROM_BIOS(0) )
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ROM_SYSTEM_BIOS(1, "alt", "a5200 (alt)")
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ROMX_LOAD( "5200a.rom", 0xf800, 0x0800, CRC(c2ba2613) SHA1(1d2a3f00109d75d2d79fecb565775eb95b7d04d5), ROM_BIOS(1) )
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ROM_LOAD( "co19156.u8", 0xf800, 0x0800, CRC(4248d3e3) SHA1(6ad7a1e8c9fad486fbec9498cb48bf5bc3adc530) )
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ROM_END
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ROM_START(a5200a)
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ROM_REGION(0x10000, "maincpu", ROMREGION_ERASEFF)
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ROM_SYSTEM_BIOS(0, "default", "2-Port")
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ROMX_LOAD( "co19156a.a8", 0xf800, 0x0800, CRC(c2ba2613) SHA1(1d2a3f00109d75d2d79fecb565775eb95b7d04d5), ROM_BIOS(0) ) // This breaks "K-Razy Shoot-Out", "Mountain King", and "Pitfall!"
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ROM_SYSTEM_BIOS(1, "4port", "4-Port")
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ROMX_LOAD( "co19156.u8", 0xf800, 0x0800, CRC(4248d3e3) SHA1(6ad7a1e8c9fad486fbec9498cb48bf5bc3adc530), ROM_BIOS(1) )
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ROM_END
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@ -2491,3 +2550,4 @@ COMP( 1986, a800xe, a800xl, 0, a800xl, a800xl, a400_state, empty_init,
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COMP( 1987, xegs, 0, 0, xegs, a800xl, a400_state, empty_init, "Atari", "Atari XE Game System", MACHINE_IMPERFECT_GRAPHICS ) // 64k RAM
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CONS( 1982, a5200, 0, 0, a5200, a5200, a400_state, empty_init, "Atari", "Atari 5200", 0)
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CONS( 1983, a5200a, a5200, 0, a5200a, a5200a, a400_state, empty_init, "Atari", "Atari 5200 (2-port)", 0)
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@ -2935,7 +2935,8 @@ a1200xl // 1982 Atari 1200 XL
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a130xe // 1986 Atari 130 XE
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a400 // 1979 Atari 400
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a400pal // 1979 Atari 400 PAL
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a5200 // Atari 5200
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a5200 // 1982 Atari 5200
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a5200a // 1983 Atari 5200 (2-port)
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a600xl // 1983 Atari 600 XL
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a65xe // 1986 Atari 65 XE (XL Extended)
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a65xea // 1986? Atari 65 XE Arabic
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