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-rw-r--r--src/mess/drivers/ami1200.c415
1 files changed, 415 insertions, 0 deletions
diff --git a/src/mess/drivers/ami1200.c b/src/mess/drivers/ami1200.c
new file mode 100644
index 00000000000..51f72a206a7
--- /dev/null
+++ b/src/mess/drivers/ami1200.c
@@ -0,0 +1,415 @@
+/*
+ Amiga 1200
+
+ Preliminary MAME driver by Mariusz Wojcieszek
+ CD-ROM controller by Ernesto Corvi
+ Borrowed by incog for MESS
+
+ 2009-05 Fabio Priuli:
+ Amiga 1200 support is just sketched (I basically took cd32 and removed Akiko). I connected
+ the floppy drive in the same way as in amiga.c but it seems to be not working, since I
+ tried to load WB3.1 with no success. However, this problem may be due to anything: maybe
+ the floppy code must be connected elsewhere, or the .adf image is broken, or I made some
+ stupid mistake in the CIA interfaces.
+ Later, it could be wise to re-factor this source and merge the non-AGA code with
+ mess/drivers/amiga.c
+*/
+
+#include "emu.h"
+#include "cpu/m68000/m68000.h"
+#include "machine/6526cia.h"
+#include "machine/i2cmem.h"
+#include "machine/amigafdc.h"
+#include "machine/amigakbd.h"
+
+#include "includes/amiga.h"
+#include "includes/cd32.h"
+
+
+
+class ami1200_state : public amiga_state
+{
+public:
+ ami1200_state(const machine_config &mconfig, device_type type, const char *tag)
+ : amiga_state(mconfig, type, tag) { }
+
+ UINT16 m_potgo_value;
+ int m_cd32_shifter[2];
+ int m_oldstate[2];
+ DECLARE_WRITE32_MEMBER(aga_overlay_w);
+ DECLARE_DRIVER_INIT(a1200);
+};
+
+
+
+#define A1200PAL_XTAL_X1 XTAL_28_37516MHz
+#define A1200PAL_XTAL_X2 XTAL_4_433619MHz
+
+
+
+static void handle_cd32_joystick_cia(ami1200_state *state, UINT8 pra, UINT8 dra);
+
+WRITE32_MEMBER(ami1200_state::aga_overlay_w)
+{
+ if (ACCESSING_BITS_16_23)
+ {
+ data = (data >> 16) & 1;
+
+ /* switch banks as appropriate */
+ membank("bank1")->set_entry(data & 1);
+
+ /* swap the write handlers between ROM and bank 1 based on the bit */
+ if ((data & 1) == 0)
+ /* overlay disabled, map RAM on 0x000000 */
+ space.install_write_bank(0x000000, 0x1fffff, "bank1");
+ else
+ /* overlay enabled, map Amiga system ROM on 0x000000 */
+ space.unmap_write(0x000000, 0x1fffff);
+ }
+}
+
+/*************************************
+ *
+ * CIA-A port A access:
+ *
+ * PA7 = game port 1, pin 6 (fire)
+ * PA6 = game port 0, pin 6 (fire)
+ * PA5 = /RDY (disk ready)
+ * PA4 = /TK0 (disk track 00)
+ * PA3 = /WPRO (disk write protect)
+ * PA2 = /CHNG (disk change)
+ * PA1 = /LED (LED, 0=bright / audio filter control)
+ * PA0 = MUTE
+ *
+ *************************************/
+
+static WRITE8_DEVICE_HANDLER( ami1200_cia_0_porta_w )
+{
+ ami1200_state *state = device->machine().driver_data<ami1200_state>();
+
+ /* bit 2 = Power Led on Amiga */
+ set_led_status(device->machine(), 0, !BIT(data, 1));
+
+ handle_cd32_joystick_cia(state, data, mos6526_r(device, 2));
+}
+
+/*************************************
+ *
+ * CIA-A port B access:
+ *
+ * PB7 = parallel data 7
+ * PB6 = parallel data 6
+ * PB5 = parallel data 5
+ * PB4 = parallel data 4
+ * PB3 = parallel data 3
+ * PB2 = parallel data 2
+ * PB1 = parallel data 1
+ * PB0 = parallel data 0
+ *
+ *************************************/
+
+static READ8_DEVICE_HANDLER( ami1200_cia_0_portb_r )
+{
+ /* parallel port */
+ logerror("%s:CIA0_portb_r\n", device->machine().describe_context());
+ return 0xff;
+}
+
+static WRITE8_DEVICE_HANDLER( ami1200_cia_0_portb_w )
+{
+ /* parallel port */
+ logerror("%s:CIA0_portb_w(%02x)\n", device->machine().describe_context(), data);
+}
+
+static ADDRESS_MAP_START( a1200_map, AS_PROGRAM, 32, ami1200_state )
+ ADDRESS_MAP_UNMAP_HIGH
+ AM_RANGE(0x000000, 0x1fffff) AM_RAMBANK("bank1") AM_SHARE("chip_ram")
+ AM_RANGE(0xbfa000, 0xbfa003) AM_WRITE(aga_overlay_w)
+ AM_RANGE(0xbfd000, 0xbfefff) AM_READWRITE16_LEGACY(amiga_cia_r, amiga_cia_w, 0xffffffff)
+ AM_RANGE(0xc00000, 0xdfffff) AM_READWRITE16_LEGACY(amiga_custom_r, amiga_custom_w, 0xffffffff) AM_SHARE("custom_regs")
+ AM_RANGE(0xe80000, 0xe8ffff) AM_READWRITE16_LEGACY(amiga_autoconfig_r, amiga_autoconfig_w, 0xffffffff)
+ AM_RANGE(0xf80000, 0xffffff) AM_ROM AM_REGION("user1", 0) /* Kickstart */
+ADDRESS_MAP_END
+
+
+//int cd32_input_port_val = 0;
+//int cd32_input_select = 0;
+
+static void cd32_potgo_w(running_machine &machine, UINT16 data)
+{
+ ami1200_state *state = machine.driver_data<ami1200_state>();
+ int i;
+
+ state->m_potgo_value = state->m_potgo_value & 0x5500;
+ state->m_potgo_value |= data & 0xaa00;
+
+ for (i = 0; i < 8; i += 2)
+ {
+ UINT16 dir = 0x0200 << i;
+ if (data & dir)
+ {
+ UINT16 d = 0x0100 << i;
+ state->m_potgo_value &= ~d;
+ state->m_potgo_value |= data & d;
+ }
+ }
+ for (i = 0; i < 2; i++)
+ {
+ UINT16 p5dir = 0x0200 << (i * 4); /* output enable P5 */
+ UINT16 p5dat = 0x0100 << (i * 4); /* data P5 */
+ if ((state->m_potgo_value & p5dir) && (state->m_potgo_value & p5dat))
+ state->m_cd32_shifter[i] = 8;
+ }
+}
+
+static void handle_cd32_joystick_cia(ami1200_state *state, UINT8 pra, UINT8 dra)
+{
+ int i;
+
+ for (i = 0; i < 2; i++)
+ {
+ UINT8 but = 0x40 << i;
+ UINT16 p5dir = 0x0200 << (i * 4); /* output enable P5 */
+ UINT16 p5dat = 0x0100 << (i * 4); /* data P5 */
+ if (!(state->m_potgo_value & p5dir) || !(state->m_potgo_value & p5dat))
+ {
+ if ((dra & but) && (pra & but) != state->m_oldstate[i])
+ {
+ if (!(pra & but))
+ {
+ state->m_cd32_shifter[i]--;
+ if (state->m_cd32_shifter[i] < 0)
+ state->m_cd32_shifter[i] = 0;
+ }
+ }
+ }
+ state->m_oldstate[i] = pra & but;
+ }
+}
+
+
+static INPUT_PORTS_START( a1200 )
+ PORT_START("CIA0PORTA")
+ PORT_BIT( 0x3f, IP_ACTIVE_LOW, IPT_SPECIAL )
+ PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1)
+ PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2)
+
+ PORT_START("CIA0PORTB")
+ PORT_BIT( 0xff, IP_ACTIVE_LOW, IPT_UNUSED )
+
+ PORT_START("JOY0DAT")
+ PORT_BIT( 0x0303, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM_MEMBER(DEVICE_SELF, ami1200_state,amiga_joystick_convert, "P1JOY")
+ PORT_BIT( 0xfcfc, IP_ACTIVE_HIGH, IPT_UNUSED )
+
+ PORT_START("JOY1DAT")
+ PORT_BIT( 0x0303, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM_MEMBER(DEVICE_SELF, ami1200_state,amiga_joystick_convert, "P2JOY")
+ PORT_BIT( 0xfcfc, IP_ACTIVE_HIGH, IPT_UNUSED )
+
+ PORT_START("POTGO")
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1)
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_UNUSED )
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2)
+ PORT_BIT( 0xaaff, IP_ACTIVE_HIGH, IPT_UNUSED )
+
+ PORT_START("P1JOY")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_PLAYER(1)
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1)
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1)
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1)
+
+ PORT_START("P2JOY")
+ PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_JOYSTICK_UP ) PORT_PLAYER(2)
+ PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2)
+ PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2)
+ PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2)
+
+ PORT_START("P0MOUSEX")
+ PORT_BIT( 0xff, 0x00, IPT_MOUSE_X) PORT_SENSITIVITY(100) PORT_KEYDELTA(5) PORT_MINMAX(0, 255) PORT_PLAYER(1)
+
+ PORT_START("P0MOUSEY")
+ PORT_BIT( 0xff, 0x00, IPT_MOUSE_Y) PORT_SENSITIVITY(100) PORT_KEYDELTA(5) PORT_MINMAX(0, 255) PORT_PLAYER(1)
+
+ PORT_START("P1MOUSEX")
+ PORT_BIT( 0xff, 0x00, IPT_MOUSE_X) PORT_SENSITIVITY(100) PORT_KEYDELTA(5) PORT_MINMAX(0, 255) PORT_PLAYER(2)
+
+ PORT_START("P1MOUSEY")
+ PORT_BIT( 0xff, 0x00, IPT_MOUSE_Y) PORT_SENSITIVITY(100) PORT_KEYDELTA(5) PORT_MINMAX(0, 255) PORT_PLAYER(2)
+
+ PORT_INCLUDE( amiga_us_keyboard )
+INPUT_PORTS_END
+
+
+/*************************************
+ *
+ * Sound definitions
+ *
+ *************************************/
+
+static READ8_DEVICE_HANDLER( a1200_cia_0_portA_r )
+{
+ UINT8 ret = device->machine().root_device().ioport("CIA0PORTA")->read() & 0xc0; /* Gameport 1 and 0 buttons */
+ ret |= device->machine().device<amiga_fdc>("fdc")->ciaapra_r();
+ return ret;
+}
+
+
+static const mos6526_interface a1200_cia_0_intf =
+{
+ 0, /* tod_clock */
+ DEVCB_DEVICE_LINE("cia_0", amiga_cia_0_irq), /* irq_func */
+ DEVCB_NULL, /* pc_func */
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_DEVICE_HANDLER("cia_0", a1200_cia_0_portA_r),
+ DEVCB_DEVICE_HANDLER("cia_0", ami1200_cia_0_porta_w), /* port A */
+ DEVCB_DEVICE_HANDLER("cia_0", ami1200_cia_0_portb_r),
+ DEVCB_DEVICE_HANDLER("cia_0", ami1200_cia_0_portb_w) /* port B */
+};
+
+static const mos6526_interface a1200_cia_1_intf =
+{
+ 0, /* tod_clock */
+ DEVCB_DEVICE_LINE("cia_1", amiga_cia_1_irq), /* irq_func */
+ DEVCB_NULL, /* pc_func */
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL,
+ DEVCB_NULL, /* port A */
+ DEVCB_NULL,
+ DEVCB_DEVICE_MEMBER("fdc", amiga_fdc, ciaaprb_w) /* port B */
+};
+
+static SLOT_INTERFACE_START( amiga_floppies )
+ SLOT_INTERFACE( "35dd", FLOPPY_35_DD )
+SLOT_INTERFACE_END
+
+
+static MACHINE_CONFIG_START( a1200n, ami1200_state )
+
+ /* basic machine hardware */
+ MCFG_CPU_ADD("maincpu", M68EC020, AMIGA_68EC020_NTSC_CLOCK) /* 14.3 Mhz */
+ MCFG_CPU_PROGRAM_MAP(a1200_map)
+
+// MCFG_CPU_ADD("keyboard_mpu", MC68HC05)
+
+ MCFG_MACHINE_RESET(amiga)
+
+ /* video hardware */
+ MCFG_VIDEO_ATTRIBUTES(VIDEO_UPDATE_BEFORE_VBLANK)
+
+ MCFG_SCREEN_ADD("screen", RASTER)
+ MCFG_SCREEN_REFRESH_RATE(59.997)
+ MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
+ MCFG_SCREEN_SIZE(512*2, 312)
+ MCFG_SCREEN_VISIBLE_AREA((129-8-8)*2, (449+8-1+8)*2, 44-8, 300+8-1)
+ MCFG_SCREEN_UPDATE_STATIC(amiga_aga)
+
+ MCFG_VIDEO_START(amiga_aga)
+
+ /* sound hardware */
+ MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
+
+ MCFG_SOUND_ADD("amiga", AMIGA, XTAL_28_63636MHz/8)
+ MCFG_SOUND_ROUTE(0, "lspeaker", 0.25)
+ MCFG_SOUND_ROUTE(1, "rspeaker", 0.25)
+ MCFG_SOUND_ROUTE(2, "rspeaker", 0.25)
+ MCFG_SOUND_ROUTE(3, "lspeaker", 0.25)
+
+ /* cia */
+ MCFG_MOS8520_ADD("cia_0", AMIGA_68EC020_NTSC_CLOCK / 10, a1200_cia_0_intf)
+ MCFG_MOS8520_ADD("cia_1", AMIGA_68EC020_NTSC_CLOCK / 10, a1200_cia_1_intf)
+
+ /* fdc */
+ MCFG_AMIGA_FDC_ADD("fdc", AMIGA_68EC020_NTSC_CLOCK/2)
+ MCFG_FLOPPY_DRIVE_ADD("fd0", amiga_floppies, "35dd", 0, amiga_fdc::floppy_formats)
+ MCFG_FLOPPY_DRIVE_ADD("fd1", amiga_floppies, 0, 0, amiga_fdc::floppy_formats)
+ MCFG_FLOPPY_DRIVE_ADD("fd2", amiga_floppies, 0, 0, amiga_fdc::floppy_formats)
+ MCFG_FLOPPY_DRIVE_ADD("fd3", amiga_floppies, 0, 0, amiga_fdc::floppy_formats)
+MACHINE_CONFIG_END
+
+static MACHINE_CONFIG_DERIVED( a1200p, a1200n )
+
+ /* adjust for PAL specs */
+ MCFG_CPU_MODIFY("maincpu")
+ MCFG_CPU_CLOCK(A1200PAL_XTAL_X1/2) /* 14.18758 MHz */
+
+ /* video hardware */
+ MCFG_SCREEN_MODIFY("screen")
+ MCFG_SCREEN_REFRESH_RATE(50)
+
+ /* sound hardware */
+ MCFG_SOUND_MODIFY("amiga")
+ MCFG_SOUND_CLOCK(A1200PAL_XTAL_X1/8) /* 3.546895 MHz */
+
+ /* cia */
+ MCFG_DEVICE_MODIFY("cia_0")
+ MCFG_DEVICE_CLOCK(A1200PAL_XTAL_X1/20)
+ MCFG_DEVICE_MODIFY("cia_1")
+ MCFG_DEVICE_CLOCK(A1200PAL_XTAL_X1/20)
+
+ /* fdc */
+ MCFG_DEVICE_MODIFY("fdc")
+ MCFG_DEVICE_CLOCK(A1200PAL_XTAL_X1/4)
+MACHINE_CONFIG_END
+
+
+/***************************************************************************
+ ROM DEFINITIONS
+***************************************************************************/
+
+ROM_START( a1200n )
+ ROM_REGION32_BE(0x080000, "user1", 0)
+ ROM_DEFAULT_BIOS("kick31")
+ ROM_SYSTEM_BIOS(0, "kick30", "Kickstart 3.0 (39.106)")
+ ROMX_LOAD("391523-01.u6a", 0x000000, 0x040000, CRC(c742a412) SHA1(999eb81c65dfd07a71ee19315d99c7eb858ab186), ROM_GROUPWORD | ROM_REVERSE | ROM_SKIP(2) | ROM_BIOS(1))
+ ROMX_LOAD("391524-01.u6b", 0x000002, 0x040000, CRC(d55c6ec6) SHA1(3341108d3a402882b5ef9d3b242cbf3c8ab1a3e9), ROM_GROUPWORD | ROM_REVERSE | ROM_SKIP(2) | ROM_BIOS(1))
+ ROM_SYSTEM_BIOS(1, "kick31", "Kickstart 3.1 (40.068)")
+ ROMX_LOAD("391773-01.u6a", 0x000000, 0x040000, CRC(08dbf275) SHA1(b8800f5f909298109ea69690b1b8523fa22ddb37), ROM_GROUPWORD | ROM_REVERSE | ROM_SKIP(2) | ROM_BIOS(2)) // ROM_LOAD32_WORD_SWAP!
+ ROMX_LOAD("391774-01.u6b", 0x000002, 0x040000, CRC(16c07bf8) SHA1(90e331be1970b0e53f53a9b0390b51b59b3869c2), ROM_GROUPWORD | ROM_REVERSE | ROM_SKIP(2) | ROM_BIOS(2))
+
+ // COMMODORE | 391508-01 REV0 | KEYBOARD MPU
+ ROM_REGION(0x1040, "keyboard_rev0", 0)
+ ROM_LOAD("391508-01.u13", 0x0000, 0x1040, NO_DUMP)
+
+ // Amiga Tech REV1 Keyboard MPU
+ ROM_REGION(0x2f40, "keyboard_rev1", 0)
+ ROM_LOAD("391508-02.u13", 0x0000, 0x2f40, NO_DUMP)
+ROM_END
+
+#define rom_a1200p rom_a1200n
+
+
+/***************************************************************************************************/
+
+DRIVER_INIT_MEMBER(ami1200_state,a1200)
+{
+ static const amiga_machine_interface cd32_intf =
+ {
+ AGA_CHIP_RAM_MASK,
+ NULL, NULL, /* joy0dat_r & joy1dat_r */
+ cd32_potgo_w, /* potgo_w */
+ NULL, /* serdat_w */
+ NULL, /* scanline0_callback */
+ NULL, /* reset_callback */
+ NULL, /* nmi_callback */
+ FLAGS_AGA_CHIPSET /* flags */
+ };
+
+ /* configure our Amiga setup */
+ amiga_machine_config(machine(), &cd32_intf);
+
+ /* set up memory */
+ membank("bank1")->configure_entry(0, m_chip_ram);
+ membank("bank1")->configure_entry(1, machine().root_device().memregion("user1")->base());
+
+ /* initialize keyboard */
+ amigakbd_init(machine());
+}
+
+
+/***************************************************************************************************/
+
+/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME */
+COMP( 1992, a1200n, 0, 0, a1200n, a1200, ami1200_state, a1200, "Commodore Business Machines", "Amiga 1200 (NTSC)" , GAME_NOT_WORKING )
+COMP( 1992, a1200p, a1200n, 0, a1200p, a1200, ami1200_state, a1200, "Commodore Business Machines", "Amiga 1200 (PAL)" , GAME_NOT_WORKING )