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inder.cpp: Modernize MSM5205 callback (nw)

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This commit is contained in:
AJR 2017-06-21 20:00:55 -04:00
parent ee78019768
commit 55d5fb8f97
1 changed files with 5 additions and 14 deletions
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19
src/mame/drivers/inder.cpp
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@ -77,7 +77,6 @@ public:
DECLARE_WRITE8_MEMBER(sndcmd_lapbylap_w);
DECLARE_WRITE8_MEMBER(lamp_w) { };
DECLARE_WRITE8_MEMBER(disp_w);
DECLARE_WRITE_LINE_MEMBER(vck_w);
DECLARE_WRITE_LINE_MEMBER(qc7a_w);
DECLARE_WRITE_LINE_MEMBER(q9a_w);
DECLARE_WRITE_LINE_MEMBER(qc9b_w);
@ -1252,16 +1251,6 @@ void inder_state::update_mus()
m_13->ba_w(0);
}
WRITE_LINE_MEMBER( inder_state::vck_w )
{
// The order of these writes is sensitive, though the schematic (not to scale)
// makes it seem that both 74HCT74 clock inputs should be raised simultaneously
m_9b->clock_w(0);
m_9a->clock_w(0);
m_9b->clock_w(1);
m_9a->clock_w(1);
}
WRITE_LINE_MEMBER( inder_state::qc7a_w )
{
m_msm->reset_w(state);
@ -1424,7 +1413,9 @@ static MACHINE_CONFIG_START( inder )
MCFG_FRAGMENT_ADD( genpin_audio )
MCFG_SPEAKER_STANDARD_MONO("msmvol")
MCFG_SOUND_ADD("msm", MSM5205, XTAL_384kHz)
MCFG_MSM5205_VCLK_CB(WRITELINE(inder_state, vck_w))
MCFG_MSM5205_VCK_CALLBACK(DEVWRITELINE("9a", ttl7474_device, clock_w))
MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("9b", ttl7474_device, clock_w)) // order of writes is sensitive
MCFG_MSM5205_PRESCALER_SELECTOR(S48_4B) /* 4KHz 4-bit */
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "msmvol", 1.0)
@ -1472,10 +1463,10 @@ static MACHINE_CONFIG_START( inder )
MCFG_DEVICE_ADD("7a", TTL7474, 0)
MCFG_7474_COMP_OUTPUT_CB(WRITELINE(inder_state, qc7a_w))
MCFG_DEVICE_ADD("9a", TTL7474, 0)
MCFG_DEVICE_ADD("9a", TTL7474, 0) // HCT74
MCFG_7474_OUTPUT_CB(WRITELINE(inder_state, q9a_w))
MCFG_DEVICE_ADD("9b", TTL7474, 0)
MCFG_DEVICE_ADD("9b", TTL7474, 0) // HCT74
MCFG_7474_COMP_OUTPUT_CB(WRITELINE(inder_state, qc9b_w))
MCFG_DEVICE_ADD("13", HCT157, 0)