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audio/dkong.c:

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* fixed LS123 constant to match TI datasheet diode circuit constant
This commit is contained in:
Couriersud 2008-01-08 20:48:35 +00:00
parent e8be9779ee
commit 9756e82982
1 changed files with 3 additions and 3 deletions
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src/mame/audio/dkong.c
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@ -672,12 +672,12 @@ DISCRETE_SOUND_END
#define GND (0)
/* KT = 0.33 for C>1uF, 0.25 else */
/* KT = 0.25 for diode circuit, 0.33 else */
#define DISCRETE_LS123(_N, _T, _R, _C) \
DISCRETE_ONESHOTR(_N, 0, _T, TTL_HIGH, (0.33 * (_R) * (_C) * (1.0+700./(_R))), DISC_ONESHOT_RETRIG | DISC_ONESHOT_REDGE)
DISCRETE_ONESHOTR(_N, 0, _T, TTL_HIGH, (0.25 * (_R) * (_C) * (1.0+700./(_R))), DISC_ONESHOT_RETRIG | DISC_ONESHOT_REDGE)
#define DISCRETE_LS123_INV(_N, _T, _R, _C) \
DISCRETE_ONESHOTR(_N, 0, _T, TTL_HIGH, (0.33 * (_R) * (_C) * (1.0+700./(_R))), DISC_ONESHOT_RETRIG | DISC_ONESHOT_REDGE | DISC_OUT_ACTIVE_LOW)
DISCRETE_ONESHOTR(_N, 0, _T, TTL_HIGH, (0.25 * (_R) * (_C) * (1.0+700./(_R))), DISC_ONESHOT_RETRIG | DISC_ONESHOT_REDGE | DISC_OUT_ACTIVE_LOW)
#define DISCRETE_BITSET(_N, _N1, _B) DISCRETE_TRANSFORM3(_N, 1, _N1, 1 << ((_B)-1), 0, "01&2>")
#define DISCRETE_ENERGY_NAND(_N, _E, _N1, _N2) DISCRETE_TRANSFORM3(_N, _E, _N1, _N2, 1, "201*-")