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Diffstat (limited to 'src/mess/drivers/a2600.c')
-rw-r--r--src/mess/drivers/a2600.c552
1 files changed, 0 insertions, 552 deletions
diff --git a/src/mess/drivers/a2600.c b/src/mess/drivers/a2600.c
deleted file mode 100644
index cf61e133b62..00000000000
--- a/src/mess/drivers/a2600.c
+++ /dev/null
@@ -1,552 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Nathan Woods, Wilbert Pol
-/***************************************************************************
-
- Atari VCS 2600 driver
-
-TODO:
-- Move the 2 32-in-1 rom dumps into their own driver
-- Add 128-in-1 driver
-
-***************************************************************************/
-
-#include "emu.h"
-#include "machine/mos6530n.h"
-#include "cpu/m6502/m6502.h"
-#include "sound/tiaintf.h"
-#include "video/tia.h"
-#include "bus/vcs/vcs_slot.h"
-#include "bus/vcs/rom.h"
-#include "bus/vcs/dpc.h"
-#include "bus/vcs/scharger.h"
-#include "bus/vcs/compumat.h"
-#include "bus/vcs_ctrl/ctrl.h"
-
-#define CONTROL1_TAG "joyport1"
-#define CONTROL2_TAG "joyport2"
-
-
-class a2600_state : public driver_device
-{
-public:
- a2600_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag),
- m_riot_ram(*this, "riot_ram"),
- m_joy1(*this, CONTROL1_TAG),
- m_joy2(*this, CONTROL2_TAG) ,
- m_cart(*this, "cartslot"),
- m_tia(*this, "tia_video"),
- m_maincpu(*this, "maincpu"),
- m_screen(*this, "screen"),
- m_swb(*this, "SWB")
- { }
-
- required_shared_ptr<UINT8> m_riot_ram;
- UINT16 m_current_screen_height;
-
- DECLARE_MACHINE_START(a2600);
- DECLARE_WRITE8_MEMBER(switch_A_w);
- DECLARE_READ8_MEMBER(switch_A_r);
- DECLARE_WRITE8_MEMBER(switch_B_w);
- DECLARE_WRITE_LINE_MEMBER(irq_callback);
- DECLARE_READ8_MEMBER(riot_input_port_8_r);
- DECLARE_READ16_MEMBER(a2600_read_input_port);
- DECLARE_READ8_MEMBER(a2600_get_databus_contents);
- DECLARE_WRITE16_MEMBER(a2600_tia_vsync_callback);
- DECLARE_WRITE16_MEMBER(a2600_tia_vsync_callback_pal);
- DECLARE_WRITE8_MEMBER(cart_over_tia_w);
- // investigate how the carts mapped here (Mapper JVP) interact with the RIOT device
- DECLARE_READ8_MEMBER(cart_over_riot_r);
- DECLARE_WRITE8_MEMBER(cart_over_riot_w);
-
-protected:
- required_device<vcs_control_port_device> m_joy1;
- required_device<vcs_control_port_device> m_joy2;
- required_device<vcs_cart_slot_device> m_cart;
- required_device<tia_video_device> m_tia;
-
- unsigned long detect_2600controllers();
- required_device<m6502_device> m_maincpu;
- required_device<screen_device> m_screen;
- required_ioport m_swb;
-};
-
-
-
-#define MASTER_CLOCK_NTSC 3579545
-#define MASTER_CLOCK_PAL 3546894
-#define CATEGORY_SELECT 16
-
-static const UINT16 supported_screen_heights[4] = { 262, 312, 328, 342 };
-
-
-static ADDRESS_MAP_START(a2600_mem, AS_PROGRAM, 8, a2600_state )
- ADDRESS_MAP_GLOBAL_MASK(0x1fff)
- AM_RANGE(0x0000, 0x007f) AM_MIRROR(0x0f00) AM_DEVREADWRITE("tia_video", tia_video_device, read, write)
- AM_RANGE(0x0080, 0x00ff) AM_MIRROR(0x0d00) AM_RAM AM_SHARE("riot_ram")
- AM_RANGE(0x0280, 0x029f) AM_MIRROR(0x0d00) AM_DEVICE("riot", mos6532_t, io_map)
- // AM_RANGE(0x1000, 0x1fff) is cart data and it is configured at reset time, depending on the mounted cart!
-ADDRESS_MAP_END
-
-WRITE8_MEMBER(a2600_state::switch_A_w)
-{
- /* Left controller port */
- m_joy1->joy_w( data >> 4 );
-
- /* Right controller port */
- m_joy2->joy_w( data & 0x0f );
-
-// switch( ioport("CONTROLLERS")->read() % CATEGORY_SELECT )
-// {
-// case 0x0a: /* KidVid voice module */
-// m_cassette->change_state(( data & 0x02 ) ? (cassette_state)CASSETTE_MOTOR_DISABLED : (cassette_state)(CASSETTE_MOTOR_ENABLED | CASSETTE_PLAY), (cassette_state)CASSETTE_MOTOR_DISABLED );
-// break;
-// }
-}
-
-READ8_MEMBER(a2600_state::switch_A_r)
-{
- UINT8 val = 0;
-
- /* Left controller port PINs 1-4 ( 4321 ) */
- val |= ( m_joy1->joy_r() & 0x0F ) << 4;
-
- /* Right controller port PINs 1-4 ( 4321 ) */
- val |= m_joy2->joy_r() & 0x0F;
-
- return val;
-}
-
-WRITE8_MEMBER(a2600_state::switch_B_w)
-{
-}
-
-WRITE_LINE_MEMBER(a2600_state::irq_callback)
-{
-}
-
-READ8_MEMBER(a2600_state::riot_input_port_8_r)
-{
- return m_swb->read();
-}
-
-
-READ16_MEMBER(a2600_state::a2600_read_input_port)
-{
- switch( offset )
- {
- case 0: /* Left controller port PIN 5 */
- return m_joy1->pot_x_r();
-
- case 1: /* Left controller port PIN 9 */
- return m_joy1->pot_y_r();
-
- case 2: /* Right controller port PIN 5 */
- return m_joy2->pot_x_r();
-
- case 3: /* Right controller port PIN 9 */
- return m_joy2->pot_y_r();
-
- case 4: /* Left controller port PIN 6 */
- return ( m_joy1->joy_r() & 0x20 ) ? 0xff : 0x7f;
-
- case 5: /* Right controller port PIN 6 */
- return ( m_joy2->joy_r() & 0x20 ) ? 0xff : 0x7f;
- }
- return 0xff;
-}
-
-/* There are a few games that do an LDA ($80-$FF),Y instruction.
- The contents off the databus then depend on whatever was read
- from the RAM. To do this really properly the 6502 core would
- need to keep track of the last databus contents so we can query
- that. For now this is a quick hack to determine that value anyway.
- Examples:
- Q-Bert's Qubes (NTSC,F6) at 0x1594
- Berzerk at 0xF093.
-*/
-READ8_MEMBER(a2600_state::a2600_get_databus_contents)
-{
- UINT16 last_address, prev_address;
- UINT8 last_byte, prev_byte;
- address_space& prog_space = m_maincpu->space(AS_PROGRAM);
-
- last_address = m_maincpu->pc() + 1;
- if ( ! ( last_address & 0x1080 ) )
- {
- return offset;
- }
- last_byte = prog_space.read_byte(last_address );
- if ( last_byte < 0x80 || last_byte == 0xFF )
- {
- return last_byte;
- }
- prev_address = last_address - 1;
- if ( ! ( prev_address & 0x1080 ) )
- {
- return last_byte;
- }
- prev_byte = prog_space.read_byte(prev_address );
- if ( prev_byte == 0xB1 )
- { /* LDA (XX),Y */
- return prog_space.read_byte(last_byte + 1 );
- }
- return last_byte;
-}
-
-#if 0
-static const rectangle visarea[4] = {
- { 26, 26 + 160 + 16, 24, 24 + 192 + 31 }, /* 262 */
- { 26, 26 + 160 + 16, 32, 32 + 228 + 31 }, /* 312 */
- { 26, 26 + 160 + 16, 45, 45 + 240 + 31 }, /* 328 */
- { 26, 26 + 160 + 16, 48, 48 + 240 + 31 } /* 342 */
-};
-#endif
-
-WRITE16_MEMBER(a2600_state::a2600_tia_vsync_callback)
-{
- int i;
-
- for ( i = 0; i < ARRAY_LENGTH(supported_screen_heights); i++ )
- {
- if ( data >= supported_screen_heights[i] - 3 && data <= supported_screen_heights[i] + 3 )
- {
- if ( supported_screen_heights[i] != m_current_screen_height )
- {
- m_current_screen_height = supported_screen_heights[i];
-// m_screen->configure(228, m_current_screen_height, &visarea[i], HZ_TO_ATTOSECONDS( MASTER_CLOCK_NTSC ) * 228 * m_current_screen_height );
- }
- }
- }
-}
-
-WRITE16_MEMBER(a2600_state::a2600_tia_vsync_callback_pal)
-{
- int i;
-
- for ( i = 0; i < ARRAY_LENGTH(supported_screen_heights); i++ )
- {
- if ( data >= supported_screen_heights[i] - 3 && data <= supported_screen_heights[i] + 3 )
- {
- if ( supported_screen_heights[i] != m_current_screen_height )
- {
- m_current_screen_height = supported_screen_heights[i];
-// m_screen->configure(228, m_current_screen_height, &visarea[i], HZ_TO_ATTOSECONDS( MASTER_CLOCK_PAL ) * 228 * m_current_screen_height );
- }
- }
- }
-}
-
-// TODO: is this the correct behavior for the real hardware?!?
-READ8_MEMBER(a2600_state::cart_over_riot_r)
-{
- if (!space.debugger_access())
- m_cart->write_bank(space, offset, 0);
- return m_riot_ram[0x20 + offset];
-}
-
-WRITE8_MEMBER(a2600_state::cart_over_riot_w)
-{
- m_cart->write_bank(space, offset, 0);
- m_riot_ram[0x20 + offset] = data;
-
-}
-
-WRITE8_MEMBER(a2600_state::cart_over_tia_w)
-{
- // Both Cart & TIA see these addresses
- m_cart->write_bank(space, offset, data);
- m_tia->write(space, offset, data);
-}
-
-MACHINE_START_MEMBER(a2600_state,a2600)
-{
- m_current_screen_height = m_screen->height();
- memset(m_riot_ram, 0x00, 0x80);
-
- switch (m_cart->get_cart_type())
- {
- case A26_2K:
- case A26_4K:
- case A26_F4:
- case A26_F8:
- case A26_F8SW:
- case A26_FA:
- case A26_E0:
- case A26_E7:
- case A26_CV:
- case A26_DC:
- case A26_FV:
- case A26_8IN1:
- m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x1000, 0x1fff, read8_delegate(FUNC(vcs_cart_slot_device::read_rom),(vcs_cart_slot_device*)m_cart), write8_delegate(FUNC(vcs_cart_slot_device::write_bank),(vcs_cart_slot_device*)m_cart));
- break;
- case A26_F6:
- case A26_DPC:
- m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x1000, 0x1fff, read8_delegate(FUNC(vcs_cart_slot_device::read_rom),(vcs_cart_slot_device*)m_cart), write8_delegate(FUNC(vcs_cart_slot_device::write_bank),(vcs_cart_slot_device*)m_cart));
- m_maincpu->space(AS_PROGRAM).set_direct_update_handler(direct_update_delegate(FUNC(vcs_cart_slot_device::cart_opbase),(vcs_cart_slot_device*)m_cart));
- break;
- case A26_FE:
- m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x1000, 0x1fff, read8_delegate(FUNC(vcs_cart_slot_device::read_rom),(vcs_cart_slot_device*)m_cart), write8_delegate(FUNC(vcs_cart_slot_device::write_ram),(vcs_cart_slot_device*)m_cart));
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x01fe, 0x01ff, read8_delegate(FUNC(vcs_cart_slot_device::read_bank),(vcs_cart_slot_device*)m_cart));
- m_maincpu->space(AS_PROGRAM).install_write_handler(0x01fe, 0x01fe, write8_delegate(FUNC(vcs_cart_slot_device::write_bank),(vcs_cart_slot_device*)m_cart));
- break;
- case A26_3E:
- m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x1000, 0x1fff, read8_delegate(FUNC(vcs_cart_slot_device::read_rom),(vcs_cart_slot_device*)m_cart), write8_delegate(FUNC(vcs_cart_slot_device::write_ram),(vcs_cart_slot_device*)m_cart));
- m_maincpu->space(AS_PROGRAM).install_write_handler(0x00, 0x3f, write8_delegate(FUNC(a2600_state::cart_over_tia_w), this));
- break;
- case A26_3F:
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x1000, 0x1fff, read8_delegate(FUNC(vcs_cart_slot_device::read_rom),(vcs_cart_slot_device*)m_cart));
- m_maincpu->space(AS_PROGRAM).install_write_handler(0x00, 0x3f, write8_delegate(FUNC(a2600_state::cart_over_tia_w), this));
- break;
- case A26_UA:
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x1000, 0x1fff, read8_delegate(FUNC(vcs_cart_slot_device::read_rom),(vcs_cart_slot_device*)m_cart));
- m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x200, 0x27f, read8_delegate(FUNC(vcs_cart_slot_device::read_bank),(vcs_cart_slot_device*)m_cart), write8_delegate(FUNC(vcs_cart_slot_device::write_bank),(vcs_cart_slot_device*)m_cart));
- break;
- case A26_JVP:
- m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x1000, 0x1fff, read8_delegate(FUNC(vcs_cart_slot_device::read_rom),(vcs_cart_slot_device*)m_cart), write8_delegate(FUNC(vcs_cart_slot_device::write_bank),(vcs_cart_slot_device*)m_cart));
- // to verify the actual behavior...
- m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0xfa0, 0xfc0, read8_delegate(FUNC(a2600_state::cart_over_riot_r), this), write8_delegate(FUNC(a2600_state::cart_over_riot_w), this));
- break;
- case A26_4IN1:
- case A26_32IN1:
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x1000, 0x1fff, read8_delegate(FUNC(vcs_cart_slot_device::read_rom),(vcs_cart_slot_device*)m_cart));
- break;
- case A26_SS:
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x1000, 0x1fff, read8_delegate(FUNC(vcs_cart_slot_device::read_rom),(vcs_cart_slot_device*)m_cart));
- break;
- case A26_CM:
- m_maincpu->space(AS_PROGRAM).install_read_handler(0x1000, 0x1fff, read8_delegate(FUNC(vcs_cart_slot_device::read_rom),(vcs_cart_slot_device*)m_cart));
- break;
- }
-
- /* Banks may have changed, reset the cpu so it uses the correct reset vector */
- m_maincpu->reset();
-
- save_item(NAME(m_current_screen_height));
-}
-
-
-#ifdef UNUSED_FUNCTIONS
-// try to detect 2600 controller setup. returns 32bits with left/right controller info
-unsigned a2600_state::long detect_2600controllers()
-{
-#define JOYS 0x001
-#define PADD 0x002
-#define KEYP 0x004
-#define LGUN 0x008
-#define INDY 0x010
-#define BOOS 0x020
-#define KVID 0x040
-#define CMTE 0x080
-#define MLNK 0x100
-#define AMSE 0x200
-#define CX22 0x400
-#define CX80 0x800
-
- unsigned int left,right;
- int i,j,foundkeypad = 0;
- UINT8 *cart;
- static const unsigned char signatures[][5] = {
- { 0x55, 0xa5, 0x3c, 0x29, 0}, // star raiders
- { 0xf9, 0xff, 0xa5, 0x80, 1}, // sentinel
- { 0x81, 0x02, 0xe8, 0x86, 1}, // shooting arcade
- { 0x02, 0xa9, 0xec, 0x8d, 1}, // guntest4 tester
- { 0x85, 0x2c, 0x85, 0xa7, 2}, // INDY 500
- { 0xa1, 0x8d, 0x9d, 0x02, 2}, // omega race INDY
- { 0x65, 0x72, 0x44, 0x43, 2}, // Sprintmaster INDY
- { 0x89, 0x8a, 0x99, 0xaa, 3}, // omega race
- { 0x9a, 0x8e, 0x81, 0x02, 4},
- { 0xdd, 0x8d, 0x80, 0x02, 4},
- { 0x85, 0x8e, 0x81, 0x02, 4},
- { 0x8d, 0x81, 0x02, 0xe6, 4},
- { 0xff, 0x8d, 0x81, 0x02, 4},
- { 0xa9, 0x03, 0x8d, 0x81, 5},
- { 0xa9, 0x73, 0x8d, 0x80, 6},
- // { 0x82, 0x02, 0x85, 0x8f, 7}, // Mind Maze (really Mind Link??)
- { 0xa9, 0x30, 0x8d, 0x80, 7}, // Bionic Breakthrough
- { 0x02, 0x8e, 0x81, 0x02, 7}, // Telepathy
- { 0x41, 0x6d, 0x69, 0x67, 9}, // Missile Command Amiga Mouse
- { 0x43, 0x58, 0x2d, 0x32, 10}, // Missile Command CX22 TrackBall
- { 0x43, 0x58, 0x2d, 0x38, 11}, // Missile Command CX80 TrackBall
- { 0x4e, 0xa8, 0xa4, 0xa2, 12}, // Omega Race for Joystick ONLY
- { 0xa6, 0xef, 0xb5, 0x38, 8} // Warlords.. paddles ONLY
- };
- // start with this.. if anyone finds a game that does NOT work with both controllers enabled
- // it can be fixed here with a new signature (note that the Coleco Gemini has this setup also)
- left = JOYS+PADD; right = JOYS+PADD;
- // default for bad dumps and roms too large to have special controllers
- if ((m_cart_size > 0x4000) || (m_cart_size & 0x7ff)) return (left << 16) + right;
-
- cart = CART;
- for (i = 0; i < m_cart_size - (sizeof signatures/sizeof signatures[0]); i++)
- {
- for (j = 0; j < (sizeof signatures/sizeof signatures[0]); j++)
- {
- if (!memcmp(&cart[i], &signatures[j],sizeof signatures[0] - 1))
- {
- int k = signatures[j][4];
- if (k == 0) return (JOYS << 16) + KEYP;
- if (k == 1) return (LGUN << 16);
- if (k == 2) return (INDY << 16) + INDY;
- if (k == 3) return (BOOS << 16) + BOOS;
- if (k == 5) return (JOYS << 16) + KVID;
- if (k == 6) return (CMTE << 16) + CMTE;
- if (k == 7) return (MLNK << 16) + MLNK;
- if (k == 8) return (PADD << 16) + PADD;
- if (k == 9) return (AMSE << 16) + AMSE;
- if (k == 10) return (CX22 << 16) + CX22;
- if (k == 11) return (CX80 << 16) + CX80;
- if (k == 12) return (JOYS << 16) + JOYS;
- if (k == 4) foundkeypad = 1;
- }
- }
- }
- if (foundkeypad) return (KEYP << 16) + KEYP;
- return (left << 16) + right;
-}
-#endif
-
-
-static INPUT_PORTS_START( a2600 )
- PORT_START("SWB")
- PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Reset Game") PORT_CODE(KEYCODE_2)
- PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME("Select Game") PORT_CODE(KEYCODE_1)
- PORT_BIT ( 0x04, IP_ACTIVE_LOW, IPT_UNUSED )
- PORT_DIPNAME( 0x08, 0x08, "TV Type" ) PORT_CODE(KEYCODE_C) PORT_TOGGLE
- PORT_DIPSETTING( 0x08, "Color" )
- PORT_DIPSETTING( 0x00, "B&W" )
- PORT_BIT ( 0x10, IP_ACTIVE_LOW, IPT_UNUSED )
- PORT_BIT ( 0x20, IP_ACTIVE_LOW, IPT_UNUSED )
- PORT_DIPNAME( 0x40, 0x00, "Left Diff. Switch" ) PORT_CODE(KEYCODE_3) PORT_TOGGLE
- PORT_DIPSETTING( 0x40, "A" )
- PORT_DIPSETTING( 0x00, "B" )
- PORT_DIPNAME( 0x80, 0x00, "Right Diff. Switch" ) PORT_CODE(KEYCODE_4) PORT_TOGGLE
- PORT_DIPSETTING( 0x80, "A" )
- PORT_DIPSETTING( 0x00, "B" )
-INPUT_PORTS_END
-
-
-static SLOT_INTERFACE_START(a2600_cart)
- SLOT_INTERFACE_INTERNAL("a26_2k", A26_ROM_2K)
- SLOT_INTERFACE_INTERNAL("a26_4k", A26_ROM_4K)
- SLOT_INTERFACE_INTERNAL("a26_f4", A26_ROM_F4)
- SLOT_INTERFACE_INTERNAL("a26_f6", A26_ROM_F6)
- SLOT_INTERFACE_INTERNAL("a26_f8", A26_ROM_F8)
- SLOT_INTERFACE_INTERNAL("a26_f8sw", A26_ROM_F8_SW)
- SLOT_INTERFACE_INTERNAL("a26_fa", A26_ROM_FA)
- SLOT_INTERFACE_INTERNAL("a26_fe", A26_ROM_FE)
- SLOT_INTERFACE_INTERNAL("a26_3e", A26_ROM_3E)
- SLOT_INTERFACE_INTERNAL("a26_3f", A26_ROM_3F)
- SLOT_INTERFACE_INTERNAL("a26_e0", A26_ROM_E0)
- SLOT_INTERFACE_INTERNAL("a26_e7", A26_ROM_E7)
- SLOT_INTERFACE_INTERNAL("a26_ua", A26_ROM_UA)
- SLOT_INTERFACE_INTERNAL("a26_cv", A26_ROM_CV)
- SLOT_INTERFACE_INTERNAL("a26_dc", A26_ROM_DC)
- SLOT_INTERFACE_INTERNAL("a26_fv", A26_ROM_FV)
- SLOT_INTERFACE_INTERNAL("a26_jvp", A26_ROM_JVP)
- SLOT_INTERFACE_INTERNAL("a26_cm", A26_ROM_COMPUMATE)
- SLOT_INTERFACE_INTERNAL("a26_ss", A26_ROM_SUPERCHARGER)
- SLOT_INTERFACE_INTERNAL("a26_dpc", A26_ROM_DPC)
- SLOT_INTERFACE_INTERNAL("a26_4in1", A26_ROM_4IN1)
- SLOT_INTERFACE_INTERNAL("a26_8in1", A26_ROM_8IN1)
- SLOT_INTERFACE_INTERNAL("a26_32in1", A26_ROM_32IN1)
-SLOT_INTERFACE_END
-
-static MACHINE_CONFIG_FRAGMENT(a2600_cartslot)
- MCFG_VCS_CARTRIDGE_ADD("cartslot", a2600_cart, NULL)
-
- /* software lists */
- MCFG_SOFTWARE_LIST_ADD("cart_list","a2600")
- MCFG_SOFTWARE_LIST_ADD("cass_list","a2600_cass")
-MACHINE_CONFIG_END
-
-static MACHINE_CONFIG_START( a2600, a2600_state )
- /* basic machine hardware */
- MCFG_CPU_ADD("maincpu", M6502, MASTER_CLOCK_NTSC / 3) /* actually M6507 */
- MCFG_M6502_DISABLE_DIRECT()
- MCFG_CPU_PROGRAM_MAP(a2600_mem)
-
- MCFG_MACHINE_START_OVERRIDE(a2600_state,a2600)
-
- /* video hardware */
- MCFG_DEVICE_ADD("tia_video", TIA_NTSC_VIDEO, 0)
- MCFG_TIA_READ_INPUT_PORT_CB(READ16(a2600_state, a2600_read_input_port))
- MCFG_TIA_DATABUS_CONTENTS_CB(READ8(a2600_state, a2600_get_databus_contents))
- MCFG_TIA_VSYNC_CB(WRITE16(a2600_state, a2600_tia_vsync_callback))
-
- MCFG_SCREEN_ADD("screen", RASTER)
- MCFG_SCREEN_RAW_PARAMS( MASTER_CLOCK_NTSC, 228, 26, 26 + 160 + 16, 262, 24 , 24 + 192 + 31 )
- MCFG_SCREEN_UPDATE_DEVICE("tia_video", tia_video_device, screen_update)
- MCFG_SCREEN_PALETTE("tia_video:palette")
-
- /* sound hardware */
- MCFG_SPEAKER_STANDARD_MONO("mono")
- MCFG_SOUND_TIA_ADD("tia", MASTER_CLOCK_NTSC/114)
- MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.90)
-
- /* devices */
- MCFG_DEVICE_ADD("riot", MOS6532n, MASTER_CLOCK_NTSC / 3)
- MCFG_MOS6530n_IN_PA_CB(READ8(a2600_state, switch_A_r))
- MCFG_MOS6530n_OUT_PA_CB(WRITE8(a2600_state, switch_A_w))
- MCFG_MOS6530n_IN_PB_CB(READ8(a2600_state, riot_input_port_8_r))
- MCFG_MOS6530n_OUT_PB_CB(WRITE8(a2600_state, switch_B_w))
- MCFG_MOS6530n_IRQ_CB(WRITELINE(a2600_state, irq_callback))
-
- MCFG_VCS_CONTROL_PORT_ADD(CONTROL1_TAG, vcs_control_port_devices, "joy")
- MCFG_VCS_CONTROL_PORT_ADD(CONTROL2_TAG, vcs_control_port_devices, NULL)
-
- MCFG_FRAGMENT_ADD(a2600_cartslot)
- MCFG_SOFTWARE_LIST_FILTER("cart_list", "NTSC")
-MACHINE_CONFIG_END
-
-
-static MACHINE_CONFIG_START( a2600p, a2600_state )
- /* basic machine hardware */
- MCFG_CPU_ADD("maincpu", M6502, MASTER_CLOCK_PAL / 3) /* actually M6507 */
- MCFG_CPU_PROGRAM_MAP(a2600_mem)
- MCFG_M6502_DISABLE_DIRECT()
-
- MCFG_MACHINE_START_OVERRIDE(a2600_state,a2600)
-
- /* video hardware */
- MCFG_DEVICE_ADD("tia_video", TIA_PAL_VIDEO, 0)
- MCFG_TIA_READ_INPUT_PORT_CB(READ16(a2600_state, a2600_read_input_port))
- MCFG_TIA_DATABUS_CONTENTS_CB(READ8(a2600_state, a2600_get_databus_contents))
- MCFG_TIA_VSYNC_CB(WRITE16(a2600_state, a2600_tia_vsync_callback_pal))
-
-
- MCFG_SCREEN_ADD("screen", RASTER)
- MCFG_SCREEN_RAW_PARAMS( MASTER_CLOCK_PAL, 228, 26, 26 + 160 + 16, 312, 32, 32 + 228 + 31 )
- MCFG_SCREEN_UPDATE_DEVICE("tia_video", tia_video_device, screen_update)
- MCFG_SCREEN_PALETTE("tia_video:palette")
-
- /* sound hardware */
- MCFG_SPEAKER_STANDARD_MONO("mono")
- MCFG_SOUND_TIA_ADD("tia", MASTER_CLOCK_PAL/114)
- MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.90)
-
- /* devices */
- MCFG_DEVICE_ADD("riot", MOS6532n, MASTER_CLOCK_PAL / 3)
- MCFG_MOS6530n_IN_PA_CB(READ8(a2600_state, switch_A_r))
- MCFG_MOS6530n_OUT_PA_CB(WRITE8(a2600_state, switch_A_w))
- MCFG_MOS6530n_IN_PB_CB(READ8(a2600_state, riot_input_port_8_r))
- MCFG_MOS6530n_OUT_PB_CB(WRITE8(a2600_state, switch_B_w))
- MCFG_MOS6530n_IRQ_CB(WRITELINE(a2600_state, irq_callback))
-
- MCFG_VCS_CONTROL_PORT_ADD(CONTROL1_TAG, vcs_control_port_devices, "joy")
- MCFG_VCS_CONTROL_PORT_ADD(CONTROL2_TAG, vcs_control_port_devices, NULL)
-
- MCFG_FRAGMENT_ADD(a2600_cartslot)
- MCFG_SOFTWARE_LIST_FILTER("cart_list", "PAL")
-MACHINE_CONFIG_END
-
-
-ROM_START( a2600 )
- ROM_REGION( 0x2000, "maincpu", ROMREGION_ERASEFF )
-ROM_END
-
-#define rom_a2600p rom_a2600
-
-/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME */
-CONS( 1977, a2600, 0, 0, a2600, a2600, driver_device, 0, "Atari", "Atari 2600 (NTSC)" , MACHINE_SUPPORTS_SAVE )
-CONS( 1978, a2600p, a2600, 0, a2600p, a2600, driver_device, 0, "Atari", "Atari 2600 (PAL)", MACHINE_SUPPORTS_SAVE )