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mbc200: updated to use the new wd fdc and make it boot.

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This commit is contained in:
Dirk Best 2015-05-31 13:08:37 +02:00
parent f23ff0f6f0
commit 3a9d6f4b4b
1 changed files with 35 additions and 42 deletions
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77
src/mess/drivers/mbc200.c
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@ -41,8 +41,7 @@
#include "machine/i8255.h"
#include "machine/i8251.h"
#include "video/mc6845.h"
//#include "machine/wd_fdc.h"
#include "machine/wd17xx.h"
#include "machine/wd_fdc.h"
class mbc200_state : public driver_device
@ -56,14 +55,13 @@ public:
, m_vram(*this, "vram")
, m_maincpu(*this, "maincpu")
, m_fdc(*this, "fdc")
//, m_floppy0(*this, "fdc:0")
//, m_floppy1(*this, "fdc:1")
, m_floppy0(*this, FLOPPY_0)
, m_floppy1(*this, FLOPPY_1)
, m_floppy0(*this, "fdc:0")
, m_floppy1(*this, "fdc:1")
{ }
DECLARE_READ8_MEMBER(p2_porta_r);
DECLARE_WRITE8_MEMBER(pm_porta_w);
DECLARE_WRITE8_MEMBER(pm_portb_w);
MC6845_UPDATE_ROW(update_row);
required_device<palette_device> m_palette;
@ -75,12 +73,9 @@ private:
required_device<i8255_device> m_ppi_m;
required_shared_ptr<UINT8> m_vram;
required_device<cpu_device> m_maincpu;
//required_device<mb8876_t> m_fdc;
//required_device<floppy_connector> m_floppy0;
//required_device<floppy_connector> m_floppy1;
required_device<mb8876_device> m_fdc;
required_device<legacy_floppy_image_device> m_floppy0;
required_device<legacy_floppy_image_device> m_floppy1;
required_device<mb8876_t> m_fdc;
required_device<floppy_connector> m_floppy0;
required_device<floppy_connector> m_floppy1;
};
@ -97,13 +92,32 @@ WRITE8_MEMBER( mbc200_state::pm_porta_w )
m_comm_latch = data; // to slave CPU
}
WRITE8_MEMBER( mbc200_state::pm_portb_w )
{
floppy_image_device *floppy = NULL;
// to be verified
switch (data & 0x01)
{
case 0: floppy = m_floppy0->get_device(); break;
case 1: floppy = m_floppy1->get_device(); break;
}
m_fdc->set_floppy(floppy);
if (floppy)
{
floppy->mon_w(0);
floppy->ss_w(BIT(data, 7));
}
}
static ADDRESS_MAP_START( mbc200_io , AS_IO, 8, mbc200_state)
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff)
AM_RANGE(0xe0, 0xe0) AM_DEVREADWRITE("i8251_1", i8251_device, data_r, data_w)
AM_RANGE(0xe1, 0xe1) AM_DEVREADWRITE("i8251_1", i8251_device, status_r, control_w)
//AM_RANGE(0xe4, 0xe7) AM_DEVREADWRITE("fdc", mb8876_t, read, write)
AM_RANGE(0xe4, 0xe7) AM_DEVREADWRITE("fdc", mb8876_device, read, write)
AM_RANGE(0xe4, 0xe7) AM_DEVREADWRITE("fdc", mb8876_t, read, write)
AM_RANGE(0xe8, 0xeb) AM_DEVREADWRITE("ppi_m", i8255_device, read, write)
AM_RANGE(0xec, 0xec) AM_DEVREADWRITE("i8251_2", i8251_device, data_r, data_w)
AM_RANGE(0xed, 0xed) AM_DEVREADWRITE("i8251_2", i8251_device, status_r, control_w)
@ -142,18 +156,6 @@ INPUT_PORTS_END
void mbc200_state::machine_start()
{
// floppy_image_device *floppy = NULL;
// floppy = m_floppy0->get_device();
// floppy1 not supported currently
// m_fdc->set_floppy(floppy);
// if (floppy)
// floppy->mon_w(0);
m_floppy0->floppy_mon_w(0);
m_floppy1->floppy_mon_w(0);
m_floppy0->floppy_drive_set_ready_state(1, 1);
m_floppy1->floppy_drive_set_ready_state(1, 1);
}
void mbc200_state::machine_reset()
@ -163,16 +165,9 @@ void mbc200_state::machine_reset()
memcpy(main, roms, 0x1000);
}
static const floppy_interface mbc200_floppy_interface =
{
FLOPPY_STANDARD_5_25_SSDD_40,
LEGACY_FLOPPY_OPTIONS_NAME(default),
"floppy_5_25"
};
//static SLOT_INTERFACE_START( mbc200_floppies )
// SLOT_INTERFACE( "525dd", FLOPPY_525_SSDD )
//SLOT_INTERFACE_END
static SLOT_INTERFACE_START( mbc200_floppies )
SLOT_INTERFACE("qd", FLOPPY_525_QD )
SLOT_INTERFACE_END
MC6845_UPDATE_ROW( mbc200_state::update_row )
{
@ -244,16 +239,14 @@ static MACHINE_CONFIG_START( mbc200, mbc200_state )
MCFG_DEVICE_ADD("ppi_m", I8255, 0)
MCFG_I8255_OUT_PORTA_CB(WRITE8(mbc200_state, pm_porta_w))
MCFG_I8255_OUT_PORTB_CB(WRITE8(mbc200_state, pm_portb_w))
MCFG_DEVICE_ADD("i8251_1", I8251, 0) // INS8251N
MCFG_DEVICE_ADD("i8251_2", I8251, 0) // INS8251A
//MCFG_MB8876x_ADD("fdc", 1000000) // guess
//MCFG_FLOPPY_DRIVE_ADD("fdc:0", mbc200_floppies, "525dd", floppy_image_device::default_floppy_formats)
//MCFG_FLOPPY_DRIVE_ADD("fdc:1", mbc200_floppies, "525dd", floppy_image_device::default_floppy_formats)
MCFG_DEVICE_ADD("fdc", MB8876, 0) // MB8876A
MCFG_WD17XX_DEFAULT_DRIVE2_TAGS
MCFG_LEGACY_FLOPPY_2_DRIVES_ADD(mbc200_floppy_interface)
MCFG_MB8876x_ADD("fdc", XTAL_8MHz / 8) // guess
MCFG_FLOPPY_DRIVE_ADD("fdc:0", mbc200_floppies, "qd", floppy_image_device::default_floppy_formats)
MCFG_FLOPPY_DRIVE_ADD("fdc:1", mbc200_floppies, "qd", floppy_image_device::default_floppy_formats)
/* software lists */
MCFG_SOFTWARE_LIST_ADD("flop_list", "mbc200")