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* Fixed C219 sample read order and implemented sign+magnitude format.

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* Removed GAME_IMPERFECT_SOUND flag from all Namco NA-1 games.
This commit is contained in:
Phil Bennett 2007-12-19 19:46:12 +00:00
parent 675246085e
commit cae7ef0587
2 changed files with 28 additions and 15 deletions
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21
src/emu/sound/c140.c
View file

@ -401,12 +401,25 @@ static void update_stereo(void *param, stream_sample_t **inputs, stream_sample_t
if( cnt )
{
prevdt=lastdt;
lastdt=pSampleData[pos];
if ((v->mode & 0x40) && (info->banking_type == C140_TYPE_ASIC219))
if (info->banking_type == C140_TYPE_ASIC219)
{
lastdt ^= 0x80; // flip signedness
lastdt = pSampleData[BYTE_XOR_BE(pos)];
// Sign + magnitude format
if ((v->mode & 0x01) && (lastdt & 0x80))
lastdt = -(lastdt & 0x7f);
// Sign flip
if (v->mode & 0x40)
lastdt = -lastdt;
}
dltdt=(lastdt - prevdt);
else
{
lastdt=pSampleData[pos];
}
dltdt = (lastdt - prevdt);
}
/* Caclulate the sample value */

22
src/mame/drivers/namcona1.c
View file

@ -1820,17 +1820,17 @@ ROM_START( xday2 )
ROM_END
// NA-1 (C69 MCU)
GAME( 1992,bkrtmaq, 0, namcona1w, namcona1_quiz,bkrtmaq, ROT0, "Namco", "Bakuretsu Quiz Ma-Q Dai Bouken (Japan)", GAME_IMPERFECT_SOUND )
GAME( 1992,cgangpzl, 0, namcona1w, namcona1_joy, cgangpzl, ROT0, "Namco", "Cosmo Gang the Puzzle (US)", GAME_IMPERFECT_SOUND )
GAME( 1992,cgangpzj, cgangpzl, namcona1w, namcona1_joy, cgangpzl, ROT0, "Namco", "Cosmo Gang the Puzzle (Japan)", GAME_IMPERFECT_SOUND )
GAME( 1992,exvania, 0, namcona1, namcona1_joy, exbania, ROT0, "Namco", "Exvania (Japan)", GAME_IMPERFECT_SOUND )
GAME( 1992,fghtatck, 0, namcona1, namcona1_joy, fa, ROT90,"Namco", "Fighter & Attacker (US)", GAME_IMPERFECT_SOUND )
GAME( 1992,fa, fghtatck, namcona1, namcona1_joy, fa, ROT90,"Namco", "F/A (Japan)", GAME_IMPERFECT_SOUND )
GAME( 1992,swcourt, 0, namcona1w, namcona1_joy, swcourt, ROT0, "Namco", "Super World Court (World)", GAME_IMPERFECT_SOUND )
GAME( 1992,swcourtj, swcourt, namcona1w, namcona1_joy, swcourt, ROT0, "Namco", "Super World Court (Japan)", GAME_IMPERFECT_SOUND )
GAME( 1993,emeraldj, emeralda, namcona1w, namcona1_joy, emeraldj, ROT0, "Namco", "Emeraldia (Japan Version B)", GAME_IMPERFECT_SOUND ) /* Parent is below on NA-2 Hardware */
GAME( 1993,emerldja, emeralda, namcona1w, namcona1_joy, emeraldj, ROT0, "Namco", "Emeraldia (Japan)", GAME_IMPERFECT_SOUND ) /* Parent is below on NA-2 Hardware */
GAME( 1993,tinklpit, 0, namcona1w, namcona1_joy, tinklpit, ROT0, "Namco", "Tinkle Pit (Japan)", GAME_IMPERFECT_SOUND )
GAME( 1992,bkrtmaq, 0, namcona1w, namcona1_quiz,bkrtmaq, ROT0, "Namco", "Bakuretsu Quiz Ma-Q Dai Bouken (Japan)", 0 )
GAME( 1992,cgangpzl, 0, namcona1w, namcona1_joy, cgangpzl, ROT0, "Namco", "Cosmo Gang the Puzzle (US)", 0 )
GAME( 1992,cgangpzj, cgangpzl, namcona1w, namcona1_joy, cgangpzl, ROT0, "Namco", "Cosmo Gang the Puzzle (Japan)", 0 )
GAME( 1992,exvania, 0, namcona1, namcona1_joy, exbania, ROT0, "Namco", "Exvania (Japan)", 0 )
GAME( 1992,fghtatck, 0, namcona1, namcona1_joy, fa, ROT90,"Namco", "Fighter & Attacker (US)", 0 )
GAME( 1992,fa, fghtatck, namcona1, namcona1_joy, fa, ROT90,"Namco", "F/A (Japan)", 0 )
GAME( 1992,swcourt, 0, namcona1w, namcona1_joy, swcourt, ROT0, "Namco", "Super World Court (World)", 0 )
GAME( 1992,swcourtj, swcourt, namcona1w, namcona1_joy, swcourt, ROT0, "Namco", "Super World Court (Japan)", 0 )
GAME( 1993,emeraldj, emeralda, namcona1w, namcona1_joy, emeraldj, ROT0, "Namco", "Emeraldia (Japan Version B)", 0 ) /* Parent is below on NA-2 Hardware */
GAME( 1993,emerldja, emeralda, namcona1w, namcona1_joy, emeraldj, ROT0, "Namco", "Emeraldia (Japan)", 0 ) /* Parent is below on NA-2 Hardware */
GAME( 1993,tinklpit, 0, namcona1w, namcona1_joy, tinklpit, ROT0, "Namco", "Tinkle Pit (Japan)", 0 )
// NA-2 (C70 MCU)
GAME( 1992,knckhead, 0, namcona2, namcona2_joy, knckhead, ROT0, "Namco", "Knuckle Heads (World)", GAME_IMPERFECT_SOUND )