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Made default paletteram to be white on Hot Chase start-up, fixes ugly MAME default palette to be shown at POST [Angelo Salese]

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This commit is contained in:
Angelo Salese 2011-11-20 17:16:34 +00:00
parent f8bc08225c
commit 82d8cadb16
1 changed files with 33 additions and 30 deletions
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63
src/mame/drivers/wecleman.c
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@ -7,6 +7,23 @@
- Note: press F2 to enter service mode -
---------------------------------------------------------------------------
TODO list
---------------------------------------------------------------------------
WEC Le Mans 24:
- The parallactic scrolling is sometimes wrong
Hot Chase:
- gameplay speed is VERY erratic
- Samples pitch is too low
- No zoom and rotation of the layers
Common Issues:
- One ROM unused (32K in hotchase, 16K in wecleman)
- Incomplete DSWs
- Sprite ram is not cleared by the game and no sprite list end-marker
is written. We cope with that with an hack in the Blitter but there
must be a register to do the trick
----------------------------------------------------------------------
Hardware Main Sub Sound Sound Chips
@ -200,35 +217,6 @@ Self Test:
61fc print test strings
18cbe print "game over"
---------------------------------------------------------------------------
Issues
[WEC Le Mans 24]
---------------------------------------------------------------------------
- The parallactic scrolling is sometimes wrong
---------------------------------------------------------------------------
Issues
[Hot Chase]
---------------------------------------------------------------------------
- gameplay speed
- Samples pitch is too low
- No zoom and rotation of the layers
---------------------------------------------------------------------------
Common Issues
---------------------------------------------------------------------------
- One ROM unused (32K in hotchase, 16K in wecleman)
- Incomplete DSWs
- Sprite ram is not cleared by the game and no sprite list end-marker
is written. We cope with that with an hack in the Blitter but there
must be a register to do the trick
Revisions:
05-05-2002 David Haywood(Haze)
@ -556,7 +544,6 @@ static ADDRESS_MAP_START( hotchase_map, AS_PROGRAM, 16 )
AM_RANGE(0x110000, 0x111fff) AM_RAM_WRITE(hotchase_paletteram16_SBGRBBBBGGGGRRRR_word_w) AM_BASE_GENERIC(paletteram)
AM_RANGE(0x120000, 0x123fff) AM_RAM AM_SHARE("share1") // Shared with sub CPU
AM_RANGE(0x130000, 0x130fff) AM_RAM AM_BASE_MEMBER(wecleman_state, m_spriteram) // Sprites
// Input Ports:
AM_RANGE(0x140000, 0x140001) AM_WRITE(hotchase_soundlatch_w) // To sound CPU
AM_RANGE(0x140002, 0x140003) AM_WRITE(selected_ip_w) // Selects accelerator / wheel /
AM_RANGE(0x140004, 0x140005) AM_WRITE(irqctrl_w) // Main CPU controls the other CPUs
@ -1117,6 +1104,20 @@ static const k051316_interface hotchase_k051316_intf_1 =
hotchase_zoom_callback_1
};
static MACHINE_RESET( hotchase )
{
int i;
/* TODO: PCB reference clearly shows that the POST has random/filled data on the paletteram.
For now let's fill everything with white colors until we have better info about it */
for(i=0;i<0x2000/2;i++)
{
machine.generic.paletteram.u16[i] = 0xffff;
palette_set_color_rgb(machine,i,0xff,0xff,0xff);
}
}
static MACHINE_CONFIG_START( hotchase, wecleman_state )
/* basic machine hardware */
@ -1133,6 +1134,8 @@ static MACHINE_CONFIG_START( hotchase, wecleman_state )
MCFG_QUANTUM_TIME(attotime::from_hz(6000))
MCFG_MACHINE_RESET(hotchase)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)