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Made whitestar display boot screen. (no whatsnew)

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Also update mc6845 with vsync_on clamping
This commit is contained in:
Miodrag Milanovic 2011-09-14 09:52:34 +00:00
parent cb0b4b2e10
commit 343a37c89a
1 changed files with 58 additions and 5 deletions
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63
src/mame/drivers/whitestar.c
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@ -8,6 +8,7 @@
#include "cpu/m6809/m6809.h"
#include "sound/bsmt2000.h"
#include "video/mc6845.h"
#include "rendlay.h"
class whitestar_state : public driver_device
{
@ -17,13 +18,15 @@ public:
m_maincpu(*this, "maincpu"),
m_dmdcpu(*this, "dmdcpu"),
m_soundcpu(*this, "soundcpu"),
m_bsmt(*this, "bsmt")
m_bsmt(*this, "bsmt"),
m_mc6845(*this, "mc6845")
{ }
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_dmdcpu;
required_device<cpu_device> m_soundcpu;
required_device<bsmt2000_device> m_bsmt;
required_device<mc6845_device> m_mc6845;
UINT8 m_bsmt_latch;
UINT8 m_bsmt_reset;
@ -48,6 +51,8 @@ public:
DECLARE_WRITE8_MEMBER(bank_w);
DECLARE_WRITE8_MEMBER(dmd_bank_w);
virtual bool screen_update(screen_device &screen, bitmap_t &bitmap, const rectangle &cliprect);
};
@ -92,8 +97,10 @@ READ8_MEMBER(whitestar_state::dmd_ctrl_r)
WRITE8_MEMBER(whitestar_state::dmd_ctrl_w)
{
m_dmd_ctrl = data;
bank_w(space,0,0);
m_dmdcpu->reset();
if (data!=0) {
bank_w(space,0,0);
m_dmdcpu->reset();
}
}
/*U202 - HC245
@ -188,12 +195,31 @@ static INTERRUPT_GEN( whitestar_firq_interrupt )
device_set_input_line(device, M6809_FIRQ_LINE, HOLD_LINE);
}
MC6845_UPDATE_ROW( whitestar_update_row )
{
whitestar_state *state = device->machine().driver_data<whitestar_state>();
UINT8 *vram = state->m_vram + ((ma & 0x100)<<2) + (ra << 4);
for (int x = 0; x < 128/8; x++)
{
UINT16 val = (vram[x]<<8) + vram[x+0x200];
val = BITSWAP16(val,15,7,14,6,13,5,12,4,11,3,10,2,9,1,8,0);
*BITMAP_ADDR16(bitmap, ra, x*8 +0) = (val>>14) & 0x03;
*BITMAP_ADDR16(bitmap, ra, x*8 +1) = (val>>12) & 0x03;
*BITMAP_ADDR16(bitmap, ra, x*8 +2) = (val>>10) & 0x03;
*BITMAP_ADDR16(bitmap, ra, x*8 +3) = (val>>8) & 0x03;
*BITMAP_ADDR16(bitmap, ra, x*8 +4) = (val>>6) & 0x03;
*BITMAP_ADDR16(bitmap, ra, x*8 +5) = (val>>4) & 0x03;
*BITMAP_ADDR16(bitmap, ra, x*8 +6) = (val>>2) & 0x03;
*BITMAP_ADDR16(bitmap, ra, x*8 +7) = (val>>0) & 0x03;
}
}
static const mc6845_interface whitestar_crtc6845_interface =
{
NULL,
8 /*?*/,
NULL,
1,
NULL,
whitestar_update_row,
NULL,
DEVCB_NULL,
DEVCB_NULL,
@ -202,6 +228,20 @@ static const mc6845_interface whitestar_crtc6845_interface =
NULL
};
static PALETTE_INIT( whitestar )
{
palette_set_color(machine, 0, MAKE_RGB(0, 0, 0));
palette_set_color(machine, 1, MAKE_RGB(84, 73, 10));
palette_set_color(machine, 2, MAKE_RGB(168, 147, 21));
palette_set_color(machine, 3, MAKE_RGB(255, 224, 32));
}
bool whitestar_state::screen_update(screen_device &screen, bitmap_t &bitmap, const rectangle &cliprect)
{
m_mc6845->update(&bitmap, &cliprect);
return 0;
}
static MACHINE_CONFIG_START( whitestar, whitestar_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M6809, 2000000)
@ -227,6 +267,19 @@ static MACHINE_CONFIG_START( whitestar, whitestar_state )
MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
MCFG_MC6845_ADD("mc6845", MC6845, 2000000, whitestar_crtc6845_interface)
/* video hardware */
MCFG_SCREEN_ADD("screen", LCD)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MCFG_SCREEN_SIZE( 128, 32 )
MCFG_SCREEN_VISIBLE_AREA( 0, 128-1, 0, 32-1 )
MCFG_DEFAULT_LAYOUT( layout_lcd )
MCFG_PALETTE_LENGTH(4)
MCFG_PALETTE_INIT(whitestar)
MACHINE_CONFIG_END
/*-------------------------------------------------------------------