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h6280.cpp: fix unintended behaviour on timer value latch [Angelo Salese]

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angelosa 2019-08-15 17:28:59 +02:00
parent ab3e6b1228
commit 2789778c85
1 changed files with 3 additions and 1 deletions
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4
src/devices/cpu/h6280/h6280.cpp
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@ -2571,7 +2571,9 @@ WRITE8_MEMBER( h6280_device::timer_w )
switch (offset & 1) switch (offset & 1)
{ {
case 0: /* Counter preload */ case 0: /* Counter preload */
m_timer_load = m_timer_value = ((data & 127) + 1) * 1024; //m_timer_load = m_timer_value = ((data & 127) + 1) * 1024;
// matches HW behaviour, value is latched only with 0->1 counter enable transition
m_timer_load = ((data & 127) + 1) * 1024;
return; return;
case 1: /* Counter enable */ case 1: /* Counter enable */