diff options
Diffstat (limited to 'src/mame/audio/grchamp.cpp')
-rw-r--r-- | src/mame/audio/grchamp.cpp | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/mame/audio/grchamp.cpp b/src/mame/audio/grchamp.cpp new file mode 100644 index 00000000000..c4600a957ac --- /dev/null +++ b/src/mame/audio/grchamp.cpp @@ -0,0 +1,63 @@ +// license:BSD-3-Clause +// copyright-holders:Hans Andersson +/************************************************************************* + + audio\grchamp.c + +*************************************************************************/ +#include "emu.h" +#include "includes/grchamp.h" + + +/************************************************************************/ +/* Grand Champion Analog emulation */ +/* Written by Hans Andersson, dec 2005 */ +/************************************************************************/ + +static const discrete_dac_r1_ladder grchamp_sound_dac1 = +{ + 8, // size of ladder + {RES_K(680), RES_K(330), RES_K(150), RES_K(82), RES_K(39), RES_K(20), RES_K(10), RES_K(4.7)}, + 0, + 0, // no rBias + 0, // no rGnd + 0 // no cap +}; + +static const discrete_dac_r1_ladder grchamp_sound_dac2 = +{ + 8, // size of ladder + {RES_K(680), RES_K(330), RES_K(150), RES_K(82), RES_K(39), RES_K(20), RES_K(10), RES_K(4.7)}, + 0, + 0, // no rBias + 0, // no rGnd + 0 // no cap +}; + +/* Nodes - Sounds */ + +DISCRETE_SOUND_START(grchamp) + + /************************************************/ + /* Input register mapping for grand champion */ + /************************************************/ + + DISCRETE_INPUT_LOGIC(GRCHAMP_ENGINE_CS_EN) + DISCRETE_INPUT_DATA (GRCHAMP_SIFT_DATA) + DISCRETE_INPUT_DATA (GRCHAMP_ATTACK_UP_DATA) + DISCRETE_INPUT_NOT (GRCHAMP_IDLING_EN) + DISCRETE_INPUT_LOGIC(GRCHAMP_FOG_EN) + DISCRETE_INPUT_DATA (GRCHAMP_PLAYER_SPEED_DATA) + DISCRETE_INPUT_DATA (GRCHAMP_ATTACK_SPEED_DATA) + DISCRETE_INPUT_DATA (GRCHAMP_A_DATA) + DISCRETE_INPUT_DATA (GRCHAMP_B_DATA) + + DISCRETE_DAC_R1(NODE_20, GRCHAMP_A_DATA, DEFAULT_TTL_V_LOGIC_1, &grchamp_sound_dac1) + + DISCRETE_DAC_R1(NODE_21, GRCHAMP_B_DATA, DEFAULT_TTL_V_LOGIC_1, &grchamp_sound_dac2) + + DISCRETE_ADDER4(NODE_89, 1, 0, NODE_20, NODE_21, 0) + + DISCRETE_OUTPUT(NODE_89, 5000) + +DISCRETE_SOUND_END |