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Converted gamtor.c to use the RAMDAC device [Angelo Salese]

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This commit is contained in:
Angelo Salese 2011-12-23 18:03:43 +00:00
parent 1f91de2d6c
commit 9f2cb34981
2 changed files with 16 additions and 34 deletions
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1
src/emu/video/ramdac.c
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@ -6,6 +6,7 @@
TODO:
- masking register
- needs information about different models and what exactly they does
***************************************************************************/

49
src/mame/drivers/gamtor.c
View File

@ -26,6 +26,7 @@
#include "emu.h"
#include "cpu/m68000/m68000.h"
#include "video/ramdac.h"
class gaminator_state : public driver_device
{
@ -72,39 +73,6 @@ static WRITE32_HANDLER( gamtor_unk4_w )
}
static WRITE8_HANDLER( gamtor_ramdac_w )
{
gaminator_state *state = space->machine().driver_data<gaminator_state>();
switch(offset)
{
case 3:
state->m_pal.offs = data;
state->m_pal.offs_internal = 0;
break;
case 2:
switch(state->m_pal.offs_internal)
{
case 0:
state->m_pal.r = ((data & 0x3f) << 2) | ((data & 0x30) >> 4);
state->m_pal.offs_internal++;
break;
case 1:
state->m_pal.g = ((data & 0x3f) << 2) | ((data & 0x30) >> 4);
state->m_pal.offs_internal++;
break;
case 2:
state->m_pal.b = ((data & 0x3f) << 2) | ((data & 0x30) >> 4);
palette_set_color(space->machine(), state->m_pal.offs, MAKE_RGB(state->m_pal.r, state->m_pal.g, state->m_pal.b));
state->m_pal.offs_internal = 0;
state->m_pal.offs++;
state->m_pal.offs&=0xff;
break;
}
break;
}
}
static WRITE32_HANDLER( gamtor_unk6_w )
{
@ -195,7 +163,9 @@ static ADDRESS_MAP_START( gaminator_map, AS_PROGRAM, 32 )
/* some kind of video control / blitter? */
AM_RANGE(0x400003c0, 0x400003c3) AM_WRITE( gamtor_unk3_w )
AM_RANGE(0x400003c4, 0x400003c7) AM_READWRITE( gamtor_unk4_r, gamtor_unk4_w )
AM_RANGE(0x400003c8, 0x400003cb) AM_WRITE8( gamtor_ramdac_w, 0xffffffff )
AM_RANGE(0x400003c8, 0x400003cb) AM_DEVWRITE8_MODERN("ramdac", ramdac_device, index_w, 0x000000ff)
AM_RANGE(0x400003c8, 0x400003cb) AM_DEVWRITE8_MODERN("ramdac", ramdac_device, pal_w, 0x0000ff00)
// AM_RANGE(0x400003c8, 0x400003cb) AM_DEVWRITE8_MODERN("ramdac", ramdac_device, mask_w, 0x00ff0000)
AM_RANGE(0x400003cc, 0x400003cf) AM_WRITE( gamtor_unk6_w )
AM_RANGE(0x400003d4, 0x400003d7) AM_READWRITE( gamtor_unk2_r, gamtor_unk2_w )
AM_RANGE(0x400003d8, 0x400003fb) AM_READ( gamtor_unk7_r )
@ -213,6 +183,15 @@ INPUT_PORTS_END
static ADDRESS_MAP_START( ramdac_map, AS_0, 8 )
AM_RANGE(0x000, 0x3ff) AM_DEVREADWRITE_MODERN("ramdac",ramdac_device,ramdac_pal_r,ramdac_rgb666_w)
ADDRESS_MAP_END
static RAMDAC_INTERFACE( ramdac_intf )
{
0
};
static MACHINE_CONFIG_START( gaminator, gaminator_state )
MCFG_CPU_ADD("maincpu", MCF5206E, 40000000) /* definitely Coldfire, model / clock uncertain */
MCFG_CPU_PROGRAM_MAP(gaminator_map)
@ -229,6 +208,8 @@ static MACHINE_CONFIG_START( gaminator, gaminator_state )
MCFG_PALETTE_LENGTH(0x100)
MCFG_RAMDAC_ADD("ramdac", ramdac_intf, ramdac_map)
MCFG_VIDEO_START(gamtor)