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(MESS) Checkpoint (nw)

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This commit is contained in:
R. Belmont 2013-12-08 06:49:59 +00:00
parent 06eee48cc6
commit 4b2eab132e
1 changed files with 39 additions and 1 deletions
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40
src/mess/drivers/itt3030.c
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@ -208,6 +208,7 @@ public:
itt3030_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_kbdmcu(*this, "kbdmcu")
, m_ram(*this, "mainram")
, m_crtc(*this, "crt5027")
, m_48kbank(*this, "lowerbank")
@ -220,6 +221,7 @@ public:
// devices
required_device<cpu_device> m_maincpu;
required_device<i8041_device> m_kbdmcu;
required_device<ram_device> m_ram;
required_device<crt5027_device> m_crtc;
required_device<address_map_bank_device> m_48kbank;
@ -250,10 +252,14 @@ public:
DECLARE_WRITE8_MEMBER(bankl_w);
DECLARE_READ8_MEMBER(bankh_r);
DECLARE_WRITE8_MEMBER(bankh_w);
DECLARE_READ8_MEMBER(kbd_fifo_r);
DECLARE_READ8_MEMBER(kbd_matrix_r);
DECLARE_WRITE8_MEMBER(kbd_matrix_w);
DECLARE_FLOPPY_FORMATS(itt3030_floppy_formats);
private:
UINT8 m_unk;
UINT8 m_bank;
UINT8 m_kbdrow, m_kbdcol, m_kbdclk;
floppy_image_device *m_floppy;
};
@ -357,10 +363,38 @@ static ADDRESS_MAP_START( itt3030_io, AS_IO, 8, itt3030_state )
AM_RANGE(0x31, 0x31) AM_READ(unk2_r)
AM_RANGE(0x32, 0x32) AM_WRITE(beep_w)
AM_RANGE(0x35, 0x35) AM_READ(vsync_r)
AM_RANGE(0x40, 0x40) AM_READ(kbd_fifo_r)
AM_RANGE(0x50, 0x55) AM_DEVREADWRITE("fdc", fd1791_t, read, write)
AM_RANGE(0xf6, 0xf6) AM_WRITE(bank_w)
ADDRESS_MAP_END
READ8_MEMBER(itt3030_state::kbd_fifo_r)
{
return m_kbdmcu->upi41_master_r(space, 0); // offset 0 is data, 1 is status
}
READ8_MEMBER(itt3030_state::kbd_matrix_r)
{
return 0;
}
WRITE8_MEMBER(itt3030_state::kbd_matrix_w)
{
m_kbdrow = data & 0xf;
m_kbdcol = (data >> 4) & 0x7;
m_kbdclk = (data & 0x80) ? 1 : 0;
}
// Schematics say:
// Port 1 goes to the keyboard matrix.
// bits 0-3 select matrix rows, bits 4-6 choose column to read, bit 7 clocks the process (rising edge strobes the row, falling edge reads the data)
// T0 is the key matrix return
// Port 2 bit 2 is IRQ (in or out?)
static ADDRESS_MAP_START( kbdmcu_io, AS_IO, 8, itt3030_state )
AM_RANGE(MCS48_PORT_T0, MCS48_PORT_T0) AM_READ(kbd_matrix_r)
AM_RANGE(MCS48_PORT_P1, MCS48_PORT_P1) AM_WRITE(kbd_matrix_w)
ADDRESS_MAP_END
static INPUT_PORTS_START( itt3030 )
INPUT_PORTS_END
@ -414,6 +448,9 @@ static MACHINE_CONFIG_START( itt3030, itt3030_state )
MCFG_CPU_PROGRAM_MAP(itt3030_map)
MCFG_CPU_IO_MAP(itt3030_io)
MCFG_CPU_ADD("kbdmcu", I8041, XTAL_6MHz)
MCFG_CPU_IO_MAP(kbdmcu_io)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
@ -463,8 +500,9 @@ ROM_START( itt3030 )
ROM_LOAD( "bootv1.2.bin", 0x0000, 0x0800, CRC(90279d45) SHA1(a39a3f31f4f98980b1ef50805870837fbf72261d))
ROM_REGION( 0x0800, "gfx1", ROMREGION_ERASE00 )
ROM_LOAD( "gb136-0.bin", 0x0000, 0x0800, CRC(6a3895a8) SHA1(f3b977ffa2f54c346521c9ef034830de8f404621))
ROM_REGION( 0x0400, "gfxcpu", ROMREGION_ERASE00 )
ROM_REGION( 0x0400, "kbdmcu", ROMREGION_ERASE00 )
ROM_LOAD( "8741ad.bin", 0x0000, 0x0400, CRC(cabf4394) SHA1(e5d1416b568efa32b578ca295a29b7b5d20c0def))
ROM_END
GAME( 1982, itt3030, 0, itt3030, itt3030, driver_device, 0, ROT0, "ITT RFA", "ITT3030", GAME_NOT_WORKING | GAME_NO_SOUND )