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coco3: timer calculation wrong by a factor of 2 #8365

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Jul 27, 2021
Merged

coco3: timer calculation wrong by a factor of 2 #8365

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6 changes: 4 additions & 2 deletions src/mame/video/gime.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,8 @@

ARKANOID: Abuses TIMER = 0 for ball ricochet sounds

POP*STAR PILOT: Timer is synchronized with scanlines.

**********************************************************************/


Expand Down Expand Up @@ -480,12 +482,12 @@ void gime_device::reset_timer(void)
if (timer_type() == GIME_TIMER_63USEC)
{
// master clock divided by 8, divided by 228, divided by 2
m_gime_clock_timer->adjust(attotime::from_hz(clock()) * 3648 * m_timer_value);
m_gime_clock_timer->adjust(attotime::from_hz(clock()) * 3648 * m_timer_value / 2);
}
else
{
// master clock divided by 8, divided by 2
m_gime_clock_timer->adjust(attotime::from_hz(clock()) * 16 * m_timer_value);
m_gime_clock_timer->adjust(attotime::from_hz(clock()) * 16 * m_timer_value / 2);
}
}
else
Expand Down