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(MESS) neocd: giving it the right amount of RAM [David Haywood]

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This commit is contained in:
mahlemiut 2012-11-17 06:19:04 +00:00
parent 263948146c
commit 27d79f8cd2
1 changed files with 36 additions and 31 deletions
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67
src/mess/drivers/ng_aes.c
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@ -259,15 +259,6 @@ static void NeoSetTextSlot(INT32 nSlot)
}
static void neogeoSynchroniseZ80(INT32 nExtraCycles)
{
}
static void ZetSetBUSREQLine(INT32 nStatus)
{
}
@ -1398,8 +1389,9 @@ void ng_aes_state::neogeoWriteByteCDROM(UINT32 sekAddress, UINT8 byteValue)
break;
case 0x0127:
// bprintf(PRINT_NORMAL, _T(" - NGCD Z80 BUSREQ -> 1 (PC: 0x%06X)\n"), SekGetPC(-1));
neogeoSynchroniseZ80(0);
ZetSetBUSREQLine(1);
curr_space->machine().scheduler().synchronize();
curr_space->machine().device("audiocpu")->execute().set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
break;
case 0x0129:
// bprintf(PRINT_NORMAL, _T(" - NGCD FIX BUSREQ -> 1 (PC: 0x%06X)\n"), SekGetPC(-1));
@ -1409,34 +1401,18 @@ void ng_aes_state::neogeoWriteByteCDROM(UINT32 sekAddress, UINT8 byteValue)
case 0x0141:
// bprintf(PRINT_NORMAL, _T(" - NGCD OBJ BUSREQ -> 0 (PC: 0x%06X)\n"), SekGetPC(-1));
video_reset();
/* NO MAME
NeoSetSpriteSlot(0);
for (INT32 i = 0; i < 4; i++) {
if (NeoCDOBJBankUpdate[i]) {
NeoDecodeSpritesCD(NeoSpriteRAM + (i << 20), NeoSpriteROM[0] + (i << 20), 0x100000);
NeoUpdateSprites((i << 20), 0x100000);
}
}
*/
break;
case 0x0143:
// bprintf(PRINT_NORMAL, _T(" - NGCD PCM BUSREQ -> 0 (PC: 0x%06X)\n"), SekGetPC(-1));
break;
case 0x0147:
// bprintf(PRINT_NORMAL, _T(" - NGCD Z80 BUSREQ -> 0 (PC: 0x%06X)\n"), SekGetPC(-1));
neogeoSynchroniseZ80(0);
ZetSetBUSREQLine(0);
curr_space->machine().scheduler().synchronize();
curr_space->machine().device("audiocpu")->execute().set_input_line(INPUT_LINE_RESET, CLEAR_LINE);
break;
case 0x0149:
// bprintf(PRINT_NORMAL, _T(" - NGCD FIX BUSREQ -> 0 (PC: 0x%06X)\n"), SekGetPC(-1));
video_reset();
/* NO MAME
NeoSetTextSlot(0);
NeoUpdateText(0, 0x020000, NeoTextRAM, NeoTextROM[0]);
*/
break;
// CD mechanism communication
@ -2599,8 +2575,7 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( neocd_main_map, AS_PROGRAM, 16, ng_aes_state )
AM_RANGE(0x000000, 0x00007f) AM_RAMBANK(NEOGEO_BANK_VECTORS)
AM_RANGE(0x000080, 0x0fffff) AM_RAM
AM_RANGE(0x100000, 0x10ffff) AM_MIRROR(0x0f0000) AM_RAM AM_SHARE("neocd_work_ram")
AM_RANGE(0x000080, 0x1fffff) AM_RAM AM_SHARE("neocd_work_ram")
/* some games have protection devices in the 0x200000 region, it appears to map to cart space, not surprising, the ROM is read here too */
AM_RANGE(0x200000, 0x2fffff) AM_ROMBANK(NEOGEO_BANK_CARTRIDGE)
AM_RANGE(0x2ffff0, 0x2fffff) AM_WRITE(main_cpu_bank_select_w)
@ -2665,6 +2640,31 @@ ADDRESS_MAP_END
// does the Z80 actually see all of this as RAM on the NeoCD, or is it only actually writable via the transfer areas?
static ADDRESS_MAP_START( neocd_audio_map, AS_PROGRAM, 8, ng_aes_state )
AM_RANGE(0x0000, 0x7fff) AM_RAMBANK(NEOGEO_BANK_AUDIO_CPU_MAIN_BANK)
AM_RANGE(0x8000, 0xbfff) AM_RAMBANK(NEOGEO_BANK_AUDIO_CPU_CART_BANK3)
AM_RANGE(0xc000, 0xdfff) AM_RAMBANK(NEOGEO_BANK_AUDIO_CPU_CART_BANK2)
AM_RANGE(0xe000, 0xefff) AM_RAMBANK(NEOGEO_BANK_AUDIO_CPU_CART_BANK1)
AM_RANGE(0xf000, 0xf7ff) AM_RAMBANK(NEOGEO_BANK_AUDIO_CPU_CART_BANK0)
AM_RANGE(0xf800, 0xffff) AM_RAM
ADDRESS_MAP_END
static ADDRESS_MAP_START( neocd_audio_io_map, AS_IO, 8, ng_aes_state )
/*AM_RANGE(0x00, 0x00) AM_MIRROR(0xff00) AM_READWRITE(audio_command_r, audio_cpu_clear_nmi_w);*/ /* may not and NMI clear */
AM_RANGE(0x00, 0x00) AM_MIRROR(0xff00) AM_READ(audio_command_r)
AM_RANGE(0x04, 0x07) AM_MIRROR(0xff00) AM_DEVREADWRITE_LEGACY("ymsnd", ym2610_r, ym2610_w)
AM_RANGE(0x08, 0x08) AM_MIRROR(0xff00) /* write - NMI enable / acknowledge? (the data written doesn't matter) */
// AM_RANGE(0x08, 0x08) AM_MIRROR(0xfff0) AM_MASK(0xfff0) AM_READ(audio_cpu_bank_select_f000_f7ff_r)
// AM_RANGE(0x09, 0x09) AM_MIRROR(0xfff0) AM_MASK(0xfff0) AM_READ(audio_cpu_bank_select_e000_efff_r)
// AM_RANGE(0x0a, 0x0a) AM_MIRROR(0xfff0) AM_MASK(0xfff0) AM_READ(audio_cpu_bank_select_c000_dfff_r)
// AM_RANGE(0x0b, 0x0b) AM_MIRROR(0xfff0) AM_MASK(0xfff0) AM_READ(audio_cpu_bank_select_8000_bfff_r)
AM_RANGE(0x0c, 0x0c) AM_MIRROR(0xff00) AM_WRITE(audio_result_w)
AM_RANGE(0x18, 0x18) AM_MIRROR(0xff00) /* write - NMI disable? (the data written doesn't matter) */
ADDRESS_MAP_END
/*************************************
*
* Audio interface
@ -3069,6 +3069,11 @@ static MACHINE_CONFIG_DERIVED( neocd, neogeo )
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_PROGRAM_MAP(neocd_main_map)
MCFG_CPU_MODIFY("audiocpu")
MCFG_CPU_PROGRAM_MAP(neocd_audio_map)
MCFG_CPU_IO_MAP(neocd_audio_io_map)
MCFG_MACHINE_START_OVERRIDE(ng_aes_state,neocd)
MCFG_TIMER_DRIVER_ADD_PERIODIC("hock_timer", ng_aes_state, neocd_access_timer_callback, attotime::from_hz(75))