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h8_timer: remove impossible check,

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h8_timer: overflow only happens when m_counter_cycle is the full range
This commit is contained in:
hap 2024-02-28 13:55:45 +01:00
parent bd4f346ed1
commit f3ea2208e4
2 changed files with 3 additions and 8 deletions
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7
src/devices/cpu/h8/h8_timer16.cpp
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@ -255,7 +255,7 @@ void h8_timer16_channel_device::update_counter(u64 cur_time)
if (m_ier & (1 << i) && m_interrupt[i] != -1)
m_intc->internal_interrupt(m_interrupt[i]);
}
if(tt >= 0x10000) {
if(tt >= 0x10000 && m_counter_cycle == 0x10000) {
m_isr |= IRQ_V;
if (m_ier & IRQ_V && m_interrupt[4] != -1)
m_intc->internal_interrupt(m_interrupt[4]);
@ -292,11 +292,8 @@ void h8_timer16_channel_device::recalc_event(u64 cur_time)
m_counter_cycle = m_tgr[m_tgr_clearing];
else {
m_counter_cycle = 0x10000;
if(m_ier & IRQ_V) {
if(m_ier & IRQ_V)
event_delay = m_counter_cycle - m_tcnt;
if(!event_delay)
event_delay = m_counter_cycle;
}
}
for(int i = 0; i < m_tgr_count; i++)
if(m_ier & (1 << i)) {

4
src/devices/cpu/h8/h8_timer8.cpp
View File

@ -245,7 +245,7 @@ void h8_timer8_channel_device::update_counter(u64 cur_time)
m_intc->internal_interrupt(m_irq_cb);
}
if(tt >= 0x100) {
if(tt >= 0x100 && m_counter_cycle == 0x100) {
if(m_chained_timer)
m_chained_timer->chained_timer_overflow();
if(!(m_tcsr & TCSR_OVF)) {
@ -278,8 +278,6 @@ void h8_timer8_channel_device::recalc_event(u64 cur_time)
else {
m_counter_cycle = 0x100;
event_delay = m_counter_cycle - m_tcnt;
if(!event_delay)
event_delay = m_counter_cycle;
}
for(auto &elem : m_tcor) {