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bus/a2bus: Suppress side effects of Grappler C0nX reads for debugger.

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This commit is contained in:
Vas Crabb 2021-04-07 14:43:42 +10:00
parent e42e059b23
commit 3e28cafa55
1 changed files with 7 additions and 4 deletions
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11
src/devices/bus/a2bus/grappler.cpp
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@ -235,10 +235,13 @@ u8 a2bus_grappler_device::read_c0nx(u8 offset)
{ {
LOG("Read C0n%01X\n", offset); LOG("Read C0n%01X\n", offset);
if (BIT(offset, 1)) // A1 - assert strobe if (!machine().side_effects_disabled())
machine().scheduler().synchronize(timer_expired_delegate(FUNC(a2bus_grappler_device::set_strobe), this), 0); {
else if (BIT(offset, 2)) // A2 - release strobe if (BIT(offset, 1)) // A1 - assert strobe
machine().scheduler().synchronize(timer_expired_delegate(FUNC(a2bus_grappler_device::set_strobe), this), 1); machine().scheduler().synchronize(timer_expired_delegate(FUNC(a2bus_grappler_device::set_strobe), this), 0);
else if (BIT(offset, 2)) // A2 - release strobe
machine().scheduler().synchronize(timer_expired_delegate(FUNC(a2bus_grappler_device::set_strobe), this), 1);
}
if (BIT(offset, 0)) // A0 - printer status if (BIT(offset, 0)) // A0 - printer status
{ {