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Debug: added RAMDAC device

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This commit is contained in:
Angelo Salese 2011-12-29 15:37:35 +00:00
parent e7a669022e
commit 87c11a79d7
1 changed files with 18 additions and 3 deletions
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21
src/mame/drivers/mediagx.c
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@ -76,6 +76,7 @@
#include "machine/pckeybrd.h"
#include "machine/idectrl.h"
#include "sound/dmadac.h"
#include "video/ramdac.h"
#define SPEEDUP_HACKS 1
@ -384,7 +385,7 @@ static WRITE32_HANDLER( disp_ctrl_w )
{
mediagx_state *state = space->machine().driver_data<mediagx_state>();
printf("disp_ctrl_w %08X, %08X, %08X\n", data, offset*4, mem_mask);
// printf("disp_ctrl_w %08X, %08X, %08X\n", data, offset*4, mem_mask);
COMBINE_DATA(state->m_disp_ctrl_reg + offset);
}
@ -433,9 +434,11 @@ static WRITE32_HANDLER( memory_ctrl_w )
{
mediagx_state *state = space->machine().driver_data<mediagx_state>();
printf("memory_ctrl_w %08X, %08X, %08X\n", data, offset*4, mem_mask);
// printf("memory_ctrl_w %08X, %08X, %08X\n", data, offset*4, mem_mask);
if (offset == 0x20/4)
{
ramdac_device *ramdac = space->machine().device<ramdac_device>("ramdac");
if((state->m_disp_ctrl_reg[DC_GENERAL_CFG] & 0x00e00000) == 0x00400000)
{
// guess: crtc params?
@ -444,6 +447,7 @@ static WRITE32_HANDLER( memory_ctrl_w )
else if((state->m_disp_ctrl_reg[DC_GENERAL_CFG] & 0x00f00000) == 0x00000000)
{
state->m_pal_index = data;
ramdac->index_w( *space, 0, data );
}
else if((state->m_disp_ctrl_reg[DC_GENERAL_CFG] & 0x00f00000) == 0x00100000)
{
@ -453,6 +457,7 @@ static WRITE32_HANDLER( memory_ctrl_w )
{
state->m_pal_index = 0;
}
ramdac->pal_w( *space, 0, data );
}
}
else
@ -1112,6 +1117,14 @@ static const struct pit8253_config mediagx_pit8254_config =
}
};
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( mediagx, mediagx_state )
@ -1142,6 +1155,8 @@ static MACHINE_CONFIG_START( mediagx, mediagx_state )
MCFG_MC146818_ADD( "rtc", MC146818_STANDARD )
MCFG_RAMDAC_ADD("ramdac", ramdac_intf, ramdac_map)
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
@ -1151,7 +1166,7 @@ static MACHINE_CONFIG_START( mediagx, mediagx_state )
MCFG_SCREEN_UPDATE(mediagx)
MCFG_GFXDECODE(CGA)
MCFG_PALETTE_LENGTH(16)
MCFG_PALETTE_LENGTH(256)
MCFG_VIDEO_START(mediagx)