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-psion5mx: Added HALT register support, improves performance. [Ash Wolf, Ryan Holtz]

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This commit is contained in:
MooglyGuy 2020-01-05 17:54:06 +01:00
parent ec90c43eaa
commit 0b5372772f
1 changed files with 6 additions and 0 deletions
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6
src/mame/drivers/psion5.cpp
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@ -118,6 +118,11 @@ void psion5mx_state::check_interrupts()
{
LOGMASKED(LOG_IRQ, "Pending FIQs is %08x & %08x & %08x\n", m_pending_ints, m_int_mask, IRQ_FIQ_MASK);
LOGMASKED(LOG_IRQ, "Pending IRQs is %08x & %08x & %08x\n", m_pending_ints, m_int_mask, IRQ_IRQ_MASK);
bool any_interrupts = (m_pending_ints & m_int_mask) != 0;
if (any_interrupts)
{
m_maincpu->resume(SUSPEND_REASON_HALT);
}
m_maincpu->set_input_line(ARM7_FIRQ_LINE, m_pending_ints & m_int_mask & IRQ_FIQ_MASK ? ASSERT_LINE : CLEAR_LINE);
m_maincpu->set_input_line(ARM7_IRQ_LINE, m_pending_ints & m_int_mask & IRQ_IRQ_MASK ? ASSERT_LINE : CLEAR_LINE);
}
@ -494,6 +499,7 @@ WRITE32_MEMBER(psion5mx_state::periphs_w)
LOGMASKED(LOG_POWER_WRITES, "%s: peripheral write, PWRCNT = %08x & %08x\n", machine().describe_context(), data, mem_mask);
break;
case REG_HALT:
m_maincpu->suspend(SUSPEND_REASON_HALT, 1);
LOGMASKED(LOG_POWER_WRITES, "%s: peripheral write, HALT = %08x & %08x\n", machine().describe_context(), data, mem_mask);
break;
case REG_STBY: