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hh_tms1k: started bship sn sound

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I don't know half of what i'm doing here, could use some assistence
This commit is contained in:
hap 2016-05-15 19:17:11 +02:00
parent 14db0a2f48
commit ec53927836
1 changed files with 33 additions and 2 deletions
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35
src/mame/drivers/hh_tms1k.cpp
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@ -111,6 +111,7 @@
brighter: tc4/h2hfootb(offense), bankshot(cue ball), ...
- stopthiep: unable to start a game (may be intentional?)
- tbreakup: some of the leds flicker (rom and PLAs doublechecked)
- finish bship SN76477 sound
***************************************************************************/
@ -3626,6 +3627,9 @@ MACHINE_CONFIG_END
* TMS1000NLL MP3208 (die label 1000C, MP3208)
* SN75494N (acting as inverters), SN76477 sound
* 4 sliding buttons, light bulb
This is a 2-player electronic board game. It still needs game pieces like the
original Battleship board game.
***************************************************************************/
@ -3651,13 +3655,40 @@ WRITE16_MEMBER(bship_state::write_r)
// R0-R10: input mux
m_inp_mux = data;
// R4: 75494 to SN76477 pin 20 through R12 33K
// R4: 75494 to R12 33K to SN76477 pin 20
m_sn->slf_res_w((data & 0x10) ? RES_INF : RES_K(33));
}
WRITE16_MEMBER(bship_state::write_o)
{
//printf("%X ",m_maincpu->debug_peek_o_index());
//printf("%X ", m_maincpu->debug_peek_o_index() & 0xf);
// O0: SN76477 pin 9
m_sn->enable_w(data & 1);
// O1: 75494 to R4 100K to SN76477 pin 18
// O2: 75494 to R3 150K to SN76477 pin 18
double o12 = RES_INF;
switch (~data >> 1 & 3)
{
case 0: o12 = RES_INF; break;
case 1: o12 = RES_K(100); break;
case 2: o12 = RES_K(150); break;
case 3: o12 = RES_2_PARALLEL(RES_K(100), RES_K(150)); break;
}
m_sn->vco_res_w(o12);
// O2,O6: (TODO) to SN76477 pin 21
//m_sn->slf_cap_w(x);
// O4: SN76477 pin 22
m_sn->vco_w(data >> 4 & 1);
// O5: R11 27K to SN76477 pin 23
m_sn->one_shot_cap_w((data & 0x20) ? RES_K(27) : RES_INF);
// O6: SN76477 pin 25
m_sn->mixer_b_w(data >> 6 & 1);
// O7: 75494 to light bulb
display_matrix(1, 1, data >> 7 & 1, 1);