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(MESS) pasogo.c: Changed cpu to V30 and added dma device. (nw)

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This commit is contained in:
Wilbert Pol 2013-05-26 12:03:01 +00:00
parent 1d72cbae42
commit 8c3520d966
1 changed files with 174 additions and 22 deletions
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196
src/mess/drivers/pasogo.c
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@ -96,10 +96,12 @@ to make the standard pc driver one level more complex, so own driver
******************************************************************************/
#include "emu.h"
#include "cpu/i86/i86.h"
#include "cpu/nec/nec.h"
#include "imagedev/cartslot.h"
#include "machine/pic8259.h"
#include "machine/pit8253.h"
#include "machine/am9517a.h"
/*
rtc interrupt irq 2
*/
@ -141,11 +143,17 @@ class pasogo_state : public driver_device
{
public:
pasogo_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu")
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_pic8259(*this, "pic8259")
, m_dma8237(*this, "dma8237")
, m_pit8253(*this, "pit8254")
{ }
required_device<cpu_device> m_maincpu;
required_device<pic8259_device> m_pic8259;
required_device<am9517a_device> m_dma8237;
required_device<pit8253_device> m_pit8253;
DECLARE_READ8_MEMBER(ems_r);
DECLARE_WRITE8_MEMBER(ems_w);
DECLARE_READ8_MEMBER(vg230_io_r);
@ -162,6 +170,28 @@ public:
IRQ_CALLBACK_MEMBER(pasogo_irq_callback);
void vg230_reset();
void vg230_init();
DECLARE_WRITE_LINE_MEMBER( dma_hrq_changed );
DECLARE_WRITE_LINE_MEMBER( dma8237_out_eop );
DECLARE_READ8_MEMBER( dma_read_byte );
DECLARE_WRITE8_MEMBER( dma_write_byte );
DECLARE_READ8_MEMBER( dma8237_1_dack_r );
DECLARE_READ8_MEMBER( dma8237_2_dack_r );
DECLARE_READ8_MEMBER( dma8237_3_dack_r );
DECLARE_WRITE8_MEMBER( dma8237_0_dack_w );
DECLARE_WRITE8_MEMBER( dma8237_1_dack_w );
DECLARE_WRITE8_MEMBER( dma8237_2_dack_w );
DECLARE_WRITE8_MEMBER( dma8237_3_dack_w );
void select_dma_channel(int channel, bool state);
DECLARE_WRITE_LINE_MEMBER( dack0_w ) { select_dma_channel(0, state); }
DECLARE_WRITE_LINE_MEMBER( dack1_w ) { select_dma_channel(1, state); }
DECLARE_WRITE_LINE_MEMBER( dack2_w ) { select_dma_channel(2, state); }
DECLARE_WRITE_LINE_MEMBER( dack3_w ) { select_dma_channel(3, state); }
protected:
UINT8 m_u73_q2;
int m_dma_channel;
bool m_cur_eop;
UINT8 m_dma_offset[4];
};
@ -403,9 +433,7 @@ WRITE8_MEMBER( pasogo_state::ems_w )
}
}
static ADDRESS_MAP_START(pasogo_mem, AS_PROGRAM, 8, pasogo_state)
// AM_RANGE(0x00000, 0xfffff) AM_UNMAP AM_MASK(0xfffff)
// AM_RANGE( 0x4000, 0x7fff) AM_READWRITE(gmaster_io_r, gmaster_io_w)
static ADDRESS_MAP_START(pasogo_mem, AS_PROGRAM, 16, pasogo_state)
ADDRESS_MAP_GLOBAL_MASK(0xffFFF)
AM_RANGE(0x00000, 0x7ffff) AM_RAM
AM_RANGE(0x80000, 0x83fff) AM_RAMBANK("bank1")
@ -440,12 +468,13 @@ static ADDRESS_MAP_START(pasogo_mem, AS_PROGRAM, 8, pasogo_state)
AM_RANGE(0xf0000, 0xfffff) AM_ROMBANK("bank27")
ADDRESS_MAP_END
static ADDRESS_MAP_START(pasogo_io, AS_IO, 8, pasogo_state)
static ADDRESS_MAP_START(pasogo_io, AS_IO, 16, pasogo_state)
// ADDRESS_MAP_GLOBAL_MASK(0xfFFF)
AM_RANGE(0x0020, 0x0021) AM_DEVREADWRITE("pic8259", pic8259_device, read, write)
AM_RANGE(0x26, 0x27) AM_READWRITE(vg230_io_r, vg230_io_w )
AM_RANGE(0x0040, 0x0043) AM_DEVREADWRITE_LEGACY("pit8254", pit8253_r, pit8253_w)
AM_RANGE(0x6c, 0x6f) AM_READWRITE(ems_r, ems_w )
// AM_RANGE(0x0000, 0x001f) AM_DEVREADWRITE8("dma8237", am9517a_device, read, write, 0xffff)
AM_RANGE(0x0020, 0x0021) AM_DEVREADWRITE8("pic8259", pic8259_device, read, write, 0xffff)
AM_RANGE(0x26, 0x27) AM_READWRITE8(vg230_io_r, vg230_io_w, 0xffff )
AM_RANGE(0x0040, 0x0043) AM_DEVREADWRITE8_LEGACY("pit8254", pit8253_r, pit8253_w, 0xffff)
AM_RANGE(0x6c, 0x6f) AM_READWRITE8(ems_r, ems_w, 0xffff )
ADDRESS_MAP_END
static INPUT_PORTS_START( pasogo )
@ -546,7 +575,7 @@ INTERRUPT_GEN_MEMBER(pasogo_state::pasogo_interrupt)
IRQ_CALLBACK_MEMBER(pasogo_state::pasogo_irq_callback)
{
return machine().device<pic8259_device>("pic8259")->acknowledge();
return m_pic8259->acknowledge();
}
void pasogo_state::machine_reset()
@ -554,8 +583,6 @@ void pasogo_state::machine_reset()
m_maincpu->set_irq_acknowledge_callback(device_irq_acknowledge_delegate(FUNC(pasogo_state::pasogo_irq_callback),this));
}
//static const unsigned i86_address_mask = 0x000fffff;
static const pit8253_config pc_pit8254_config =
{
{
@ -576,6 +603,136 @@ static const pit8253_config pc_pit8254_config =
};
WRITE_LINE_MEMBER( pasogo_state::dma_hrq_changed )
{
m_maincpu->set_input_line(INPUT_LINE_HALT, state ? ASSERT_LINE : CLEAR_LINE);
/* Assert HLDA */
m_dma8237->hack_w(state);
}
WRITE_LINE_MEMBER( pasogo_state::dma8237_out_eop )
{
m_cur_eop = state == ASSERT_LINE;
if(m_dma_channel != -1 && m_cur_eop)
{
//m_isabus->eop_w(m_dma_channel, m_cur_eop ? ASSERT_LINE : CLEAR_LINE );
}
}
READ8_MEMBER( pasogo_state::dma_read_byte )
{
if(m_dma_channel == -1)
return 0xff;
address_space &spaceio = m_maincpu->space(AS_PROGRAM);
offs_t page_offset = (((offs_t) m_dma_offset[m_dma_channel]) << 16) & 0x0F0000;
return spaceio.read_byte( page_offset + offset);
}
WRITE8_MEMBER( pasogo_state::dma_write_byte )
{
if(m_dma_channel == -1)
return;
address_space &spaceio = m_maincpu->space(AS_PROGRAM);
offs_t page_offset = (((offs_t) m_dma_offset[m_dma_channel]) << 16) & 0x0F0000;
spaceio.write_byte( page_offset + offset, data);
}
READ8_MEMBER( pasogo_state::dma8237_1_dack_r )
{
return 0;
//return m_isabus->dack_r(1);
}
READ8_MEMBER( pasogo_state::dma8237_2_dack_r )
{
return 0;
//return m_isabus->dack_r(2);
}
READ8_MEMBER( pasogo_state::dma8237_3_dack_r )
{
return 0;
//return m_isabus->dack_r(3);
}
WRITE8_MEMBER( pasogo_state::dma8237_0_dack_w )
{
m_u73_q2 = 0;
m_dma8237->dreq0_w( m_u73_q2 );
}
WRITE8_MEMBER( pasogo_state::dma8237_1_dack_w )
{
//m_isabus->dack_w(1,data);
}
WRITE8_MEMBER( pasogo_state::dma8237_2_dack_w )
{
//m_isabus->dack_w(2,data);
}
WRITE8_MEMBER( pasogo_state::dma8237_3_dack_w )
{
//m_isabus->dack_w(3,data);
}
void pasogo_state::select_dma_channel(int channel, bool state)
{
if (!state)
{
m_dma_channel = channel;
if(m_cur_eop)
{
//m_isabus->eop_w(channel, ASSERT_LINE );
}
}
else if(m_dma_channel == channel)
{
m_dma_channel = -1;
if(m_cur_eop)
{
//m_isabus->eop_w(channel, CLEAR_LINE );
}
}
}
static I8237_INTERFACE( dma8237_config )
{
DEVCB_DRIVER_LINE_MEMBER(pasogo_state, dma_hrq_changed),
DEVCB_DRIVER_LINE_MEMBER(pasogo_state, dma8237_out_eop),
DEVCB_DRIVER_MEMBER(pasogo_state, dma_read_byte),
DEVCB_DRIVER_MEMBER(pasogo_state, dma_write_byte),
{ DEVCB_NULL,
DEVCB_DRIVER_MEMBER(pasogo_state, dma8237_1_dack_r),
DEVCB_DRIVER_MEMBER(pasogo_state, dma8237_2_dack_r),
DEVCB_DRIVER_MEMBER(pasogo_state, dma8237_3_dack_r) },
{ DEVCB_DRIVER_MEMBER(pasogo_state, dma8237_0_dack_w),
DEVCB_DRIVER_MEMBER(pasogo_state, dma8237_1_dack_w),
DEVCB_DRIVER_MEMBER(pasogo_state, dma8237_2_dack_w),
DEVCB_DRIVER_MEMBER(pasogo_state, dma8237_3_dack_w) },
// DACK's
{ DEVCB_DRIVER_LINE_MEMBER(pasogo_state, dack0_w),
DEVCB_DRIVER_LINE_MEMBER(pasogo_state, dack1_w),
DEVCB_DRIVER_LINE_MEMBER(pasogo_state, dack2_w),
DEVCB_DRIVER_LINE_MEMBER(pasogo_state, dack3_w) }
};
WRITE_LINE_MEMBER(pasogo_state::pasogo_pic8259_set_int_line)
{
m_maincpu->set_input_line(0, state ? HOLD_LINE : CLEAR_LINE);
@ -584,16 +741,17 @@ WRITE_LINE_MEMBER(pasogo_state::pasogo_pic8259_set_int_line)
static MACHINE_CONFIG_START( pasogo, pasogo_state )
MCFG_CPU_ADD("maincpu", I80188/*V30HL in vadem vg230*/, XTAL_32_22MHz/2)
MCFG_CPU_ADD("maincpu", V30, XTAL_32_22MHz/2)
MCFG_CPU_PROGRAM_MAP(pasogo_mem)
MCFG_CPU_IO_MAP( pasogo_io)
MCFG_CPU_VBLANK_INT_DRIVER("screen", pasogo_state, pasogo_interrupt)
// MCFG_CPU_CONFIG(i86_address_mask)
MCFG_PIT8254_ADD( "pit8254", pc_pit8254_config )
MCFG_PIC8259_ADD( "pic8259", WRITELINE(pasogo_state, pasogo_pic8259_set_int_line), VCC, NULL )
MCFG_I8237_ADD( "dma8237", XTAL_14_31818MHz/3, dma8237_config )
MCFG_SCREEN_ADD("screen", LCD)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_SIZE(640, 400)
@ -601,12 +759,6 @@ static MACHINE_CONFIG_START( pasogo, pasogo_state )
MCFG_SCREEN_UPDATE_DRIVER(pasogo_state, screen_update_pasogo)
MCFG_PALETTE_LENGTH(ARRAY_LENGTH(pasogo_palette))
#if 0
MCFG_SPEAKER_STANDARD_MONO("gmaster")
MCFG_SOUND_ADD("custom", CUSTOM, 0)
MCFG_SOUND_CONFIG(gmaster_sound_interface)
MCFG_SOUND_ROUTE(0, "gmaster", 0.50)
#endif
MCFG_CARTSLOT_ADD("cart")
MCFG_CARTSLOT_EXTENSION_LIST("bin")