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set_irq_line gives an assert, fun

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This commit is contained in:
Angelo Salese 2012-10-16 19:05:36 +00:00
parent ec3a055c19
commit e32a6f03c3
1 changed files with 40 additions and 3 deletions
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43
src/mame/drivers/dblcrown.c
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@ -44,9 +44,14 @@ public:
UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
UINT8 m_bank;
UINT8 m_irq_src;
DECLARE_READ8_MEMBER(bank_r);
DECLARE_WRITE8_MEMBER(bank_w);
DECLARE_READ8_MEMBER(irq_source_r);
DECLARE_WRITE8_MEMBER(irq_source_w);
TIMER_DEVICE_CALLBACK_MEMBER(dblcrown_irq_scanline);
protected:
// driver_device overrides
@ -78,6 +83,16 @@ WRITE8_MEMBER( dblcrown_state::bank_w)
membank("rom_bank")->set_entry(m_bank & 0x1f);
}
READ8_MEMBER( dblcrown_state::irq_source_r)
{
return m_irq_src;
}
WRITE8_MEMBER( dblcrown_state::irq_source_w)
{
m_irq_src = data; // this effectively acks the irq, by writing 0
}
static ADDRESS_MAP_START( dblcrown_map, AS_PROGRAM, 8, dblcrown_state )
AM_RANGE(0x0000, 0x7fff) AM_ROM
@ -89,8 +104,11 @@ static ADDRESS_MAP_START( dblcrown_map, AS_PROGRAM, 8, dblcrown_state )
AM_RANGE(0xc800, 0xcfff) AM_RAM
AM_RANGE(0xd000, 0xdfff) AM_RAM // vram
AM_RANGE(0xf000, 0xf1ff) AM_RAM_WRITE(paletteram_xBBBBBGGGGGRRRRR_byte_le_w) AM_SHARE("paletteram") // TODO: correct bit order
AM_RANGE(0xfe00, 0xfeff) AM_RAM // ??? - both of these seems TC0091LVC-ish ...
AM_RANGE(0xff00, 0xffff) AM_RAM // ??? /
AM_RANGE(0xfe00, 0xfeff) AM_RAM // ???
// 0xff00 - 0xff01 RAM banks for 0xd000
AM_RANGE(0xff04, 0xff04) AM_READWRITE(irq_source_r,irq_source_w)
AM_RANGE(0xff00, 0xffff) AM_RAM // ???, intentional fall-through
ADDRESS_MAP_END
static ADDRESS_MAP_START( dblcrown_io, AS_IO, 8, dblcrown_state )
@ -188,13 +206,32 @@ void dblcrown_state::palette_init()
{
}
TIMER_DEVICE_CALLBACK_MEMBER(dblcrown_state::dblcrown_irq_scanline)
{
int scanline = param;
if (scanline == 240)
{
m_maincpu->set_input_line(0, HOLD_LINE);
m_irq_src = 2;
}
/* TODO: unknown source */
if (scanline == 0)
{
m_maincpu->set_input_line(0, HOLD_LINE);
m_irq_src = 4;
}
}
static MACHINE_CONFIG_START( dblcrown, dblcrown_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu",Z80,MAIN_CLOCK/6)
MCFG_CPU_PROGRAM_MAP(dblcrown_map)
MCFG_CPU_IO_MAP(dblcrown_io)
MCFG_CPU_VBLANK_INT("screen",irq0_line_hold)
MCFG_TIMER_DRIVER_ADD_SCANLINE("scantimer", dblcrown_state, dblcrown_irq_scanline, "screen", 0, 1)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)