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Fixed TMS5220 speech in Turbo Sub [Phil Bennett, Jay Gallagher]

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This commit is contained in:
Phil Bennett 2009-01-21 15:50:31 +00:00
parent 771e2d4ab4
commit cfd83c2f3e
1 changed files with 18 additions and 17 deletions
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35
src/mame/drivers/esripsys.c
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@ -17,12 +17,6 @@
* Hold '*' during the game to access the operator menu. * Hold '*' during the game to access the operator menu.
To do: To do:
* TMS5220 speech. The game is sending speech play commands to
the sound CPU but any speech code greater than 2 is ignored (see $EC26).
I think most of the speech data is stored in the upper half of the
banked sound data ROMs but I don't know how or when the ROM
bank is switched :/
* Confirm that occasional line drop outs do occur on real hardware. * Confirm that occasional line drop outs do occur on real hardware.
14 sprites seems to be the maximum number that the RIP CPU can safely 14 sprites seems to be the maximum number that the RIP CPU can safely
process per line. process per line.
@ -528,6 +522,9 @@ static WRITE8_HANDLER( s_200e_w )
static WRITE8_HANDLER( s_200f_w ) static WRITE8_HANDLER( s_200f_w )
{ {
UINT8* const ROM = memory_region(space->machine, "sound_data");
int rombank = data & 0x20 ? 0x2000 : 0;
/* Bit 6 -> Reset latch U56A */ /* Bit 6 -> Reset latch U56A */
/* Bit 7 -> Clock latch U56B */ /* Bit 7 -> Clock latch U56B */
if (s_to_g_latch2 & 0x40) if (s_to_g_latch2 & 0x40)
@ -539,6 +536,11 @@ static WRITE8_HANDLER( s_200f_w )
if (!(s_to_g_latch2 & 0x80) && (data & 0x80)) if (!(s_to_g_latch2 & 0x80) && (data & 0x80))
u56b = 1; u56b = 1;
/* Speech data resides in the upper 8kB of the ROMs */
memory_set_bankptr(space->machine, 2, &ROM[0x0000 + rombank]);
memory_set_bankptr(space->machine, 3, &ROM[0x4000 + rombank]);
memory_set_bankptr(space->machine, 4, &ROM[0x8000 + rombank]);
s_to_g_latch2 = data; s_to_g_latch2 = data;
} }
@ -554,7 +556,7 @@ static READ8_HANDLER( tms5220_r )
/* TMS5220 core returns status bits in D7-D6 */ /* TMS5220 core returns status bits in D7-D6 */
UINT8 status = tms5220_status_r(space, 0); UINT8 status = tms5220_status_r(space, 0);
status = (status & 0x80 >> 5) | (status & 0x40 >> 5) | (status & 0x20 >> 5); status = ((status & 0x80) >> 5) | ((status & 0x40) >> 5) | ((status & 0x20) >> 5);
return (!tms5220_ready_r() << 7) | (!tms5220_int_r() << 6) | status; return (!tms5220_ready_r() << 7) | (!tms5220_int_r() << 6) | status;
} }
@ -566,16 +568,15 @@ static WRITE8_HANDLER( tms5220_w )
{ {
if (offset == 0) if (offset == 0)
{ {
if (tms5220_ready_r())
tms5220_status_r(space, 0);
tms_data = data; tms_data = data;
tms5220_data_w(0, 0, tms_data);
} }
#if 0
if (offset == 1) if (offset == 1)
{ {
if (tms5220_ready_r()) tms5220_data_w(0, 0, tms_data);
tms5220_data_w(0, 0, tms_data);
} }
#endif
} }
/* Not used in later revisions */ /* Not used in later revisions */
@ -760,11 +761,11 @@ static MACHINE_DRIVER_START( esripsys )
/* Sound hardware */ /* Sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono") MDRV_SPEAKER_STANDARD_MONO("mono")
MDRV_SOUND_ADD("tms5220nl", TMS5220, 640000) MDRV_SOUND_ADD("dac", DAC, 0)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MDRV_SOUND_ADD("dac", DAC, 0) MDRV_SOUND_ADD("tms5220nl", TMS5220, 640000)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.80) MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
MACHINE_DRIVER_END MACHINE_DRIVER_END
@ -1013,5 +1014,5 @@ ROM_END
* *
*************************************/ *************************************/
GAME( 1985, turbosub, 0, esripsys, turbosub, esripsys, ROT0, "Entertainment Sciences", "Turbo Sub (prototype rev. TSCA)", GAME_SUPPORTS_SAVE | GAME_IMPERFECT_SOUND ) GAME( 1985, turbosub, 0, esripsys, turbosub, esripsys, ROT0, "Entertainment Sciences", "Turbo Sub (prototype rev. TSCA)", GAME_SUPPORTS_SAVE )
GAME( 1985, turbosba, turbosub, esripsys, turbosub, esripsys, ROT0, "Entertainment Sciences", "Turbo Sub (prototype rev. TSC6)", GAME_SUPPORTS_SAVE | GAME_IMPERFECT_SOUND ) GAME( 1985, turbosba, turbosub, esripsys, turbosub, esripsys, ROT0, "Entertainment Sciences", "Turbo Sub (prototype rev. TSC6)", GAME_SUPPORTS_SAVE )