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further improvements (nw)

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This commit is contained in:
David Haywood 2014-02-21 03:26:02 +00:00
parent af46243d26
commit bc5fe9b35b
1 changed files with 11 additions and 9 deletions
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20
src/mame/drivers/megaphx.c
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@ -95,9 +95,6 @@ static ADDRESS_MAP_START( megaphx_68k_map, AS_PROGRAM, 16, megaphx_state )
AM_RANGE(0x040000, 0x040007) AM_READWRITE(tms_host_r, tms_host_w)
AM_RANGE(0x050002, 0x050003) AM_READ(megaphx_50002_r)
// AM_RANGE(0x050000, 0x050001) AM_DEVWRITE8("ramdac",ramdac_device,index_w,0x00ff)
// AM_RANGE(0x050002, 0x050003) AM_DEVREADWRITE8("ramdac",ramdac_device,pal_r,pal_w,0x00ff)
// AM_RANGE(0x050006, 0x050007) AM_DEVWRITE8("ramdac",ramdac_device,index_r_w,0x00ff)
AM_RANGE(0x060004, 0x060005) AM_READ(megaphx_60004_r)
AM_RANGE(0x060006, 0x060007) AM_WRITENOP
@ -110,10 +107,15 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( megaphx_tms_map, AS_PROGRAM, 16, megaphx_state )
AM_RANGE(0x00000000, 0x001fffff) AM_RAM // vram?
AM_RANGE(0x00100000, 0x002fffff) AM_RAM AM_SHARE("vram") // vram?
AM_RANGE(0x00000000, 0x001fffff) AM_RAM AM_SHARE("vram") // vram?
AM_RANGE(0x00100000, 0x002fffff) AM_RAM // vram?
AM_RANGE(0x00300000, 0x003fffff) AM_RAM
AM_RANGE(0x04000000, 0x040000ff) AM_WRITENOP
// AM_RANGE(0x04000000, 0x040000ff) AM_WRITENOP
AM_RANGE(0x04000000, 0x0400000f) AM_DEVWRITE8("ramdac",ramdac_device,index_w,0x00ff)
AM_RANGE(0x04000010, 0x0400001f) AM_DEVREADWRITE8("ramdac",ramdac_device,pal_r,pal_w,0x00ff)
AM_RANGE(0x04000030, 0x0400003f) AM_DEVWRITE8("ramdac",ramdac_device,index_r_w,0x00ff)
AM_RANGE(0xc0000000, 0xc00001ff) AM_READWRITE_LEGACY(tms34010_io_register_r, tms34010_io_register_w)
AM_RANGE(0xffc00000, 0xffffffff) AM_RAM
ADDRESS_MAP_END
@ -176,8 +178,8 @@ static const tms34010_config tms_config_megaphx =
{
TRUE, /* halt on reset */
"screen", /* the screen operated on */
XTAL_40MHz/6, /* pixel clock */
1, /* pixels per clock */
XTAL_40MHz/12, /* pixel clock */
2, /* pixels per clock */
NULL, /* scanline callback (indexed16) */
megaphx_scanline, /* scanline callback (rgb32) */
m68k_gen_int, /* generate interrupt */
@ -221,7 +223,7 @@ static MACHINE_CONFIG_START( megaphx, megaphx_state )
// MCFG_NVRAM_ADD_0FILL("nvram")
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_RAW_PARAMS(XTAL_40MHz/6, 424, 0, 320, 262, 0, 240)
MCFG_SCREEN_RAW_PARAMS(XTAL_40MHz/12, 424, 0, 320, 262, 0, 240)
MCFG_SCREEN_UPDATE_DEVICE("tms", tms34010_device, tms340x0_rgb32)
MCFG_PALETTE_LENGTH(256)