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Diffstat (limited to 'src/mame/audio/gottlieb.cpp')
-rw-r--r--src/mame/audio/gottlieb.cpp14
1 files changed, 7 insertions, 7 deletions
diff --git a/src/mame/audio/gottlieb.cpp b/src/mame/audio/gottlieb.cpp
index 4feab28f889..6a5eb46f0e8 100644
--- a/src/mame/audio/gottlieb.cpp
+++ b/src/mame/audio/gottlieb.cpp
@@ -177,7 +177,7 @@ static const char *const reactor_sample_names[] =
"fx_39j", /* "45000" */
"fx_39k", /* "50000" */
"fx_39l", /* "55000" */
- 0 /* end of array */
+ nullptr /* end of array */
};
static const char *const qbert_sample_names[] =
@@ -227,7 +227,7 @@ static const char *const qbert_sample_names[] =
"fx_23", /* O1 with varying voice clock */
"fx_28",
"fx_36",
- 0 /* end of array */
+ nullptr /* end of array */
};
MACHINE_CONFIG_FRAGMENT( reactor_samples )
@@ -429,7 +429,7 @@ WRITE8_MEMBER( gottlieb_sound_r1_device::write )
m_riot->porta_in_set(pa0_5 | (pa7 << 7), 0xbf);
#if USE_FAKE_VOTRAX
- if (pa7 && m_samples != NULL)
+ if (pa7 && m_samples != nullptr)
trigger_sample(pa0_5);
#endif
}
@@ -464,7 +464,7 @@ WRITE8_MEMBER( gottlieb_sound_r1_device::r6532_portb_w )
WRITE8_MEMBER( gottlieb_sound_r1_device::votrax_data_w )
{
- if (m_votrax != NULL)
+ if (m_votrax != nullptr)
{
m_votrax->inflection_w(space, offset, data >> 6);
m_votrax->write(space, offset, ~data & 0x3f);
@@ -486,7 +486,7 @@ WRITE8_MEMBER( gottlieb_sound_r1_device::speech_clock_dac_w )
// prevent negative clock values (and possible crash)
if (data < 0x65) data = 0x65;
- if (m_votrax != NULL)
+ if (m_votrax != nullptr)
{
// nominal clock is 0xa0
if (data != m_last_speech_clock)
@@ -494,7 +494,7 @@ WRITE8_MEMBER( gottlieb_sound_r1_device::speech_clock_dac_w )
osd_printf_debug("clock = %02X\n", data);
// totally random guesswork; would like to get real measurements on a board
- if (m_votrax != NULL)
+ if (m_votrax != nullptr)
m_votrax->set_unscaled_clock(600000 + (data - 0xa0) * 10000);
m_last_speech_clock = data;
}
@@ -672,7 +672,7 @@ gottlieb_sound_r2_device::gottlieb_sound_r2_device(const machine_config &mconfig
m_ay2(*this, "ay2"),
m_sp0250(*this, "spsnd"),
m_cobram3_mod(false),
- m_nmi_timer(NULL),
+ m_nmi_timer(nullptr),
m_nmi_state(0),
m_audiocpu_latch(0),
m_speechcpu_latch(0),