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pic8259 : when using level trigger mode we are taking current lines on EOI (no whatsnew)

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This commit is contained in:
Miodrag Milanovic 2012-02-14 10:57:29 +00:00
parent cfabeee3ab
commit 37a5826373
1 changed files with 4 additions and 0 deletions
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4
src/emu/machine/pic8259.c
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@ -308,6 +308,8 @@ WRITE8_DEVICE_HANDLER( pic8259_w )
if (pic8259->isr & mask)
{
pic8259->isr &= ~mask;
if (pic8259->level_trig_mode)
pic8259->irr = pic8259->irq_lines;
pic8259->irr &= ~mask;
break;
}
@ -342,6 +344,8 @@ WRITE8_DEVICE_HANDLER( pic8259_w )
if( pic8259->isr & mask )
{
pic8259->isr &= ~mask;
if (pic8259->level_trig_mode)
pic8259->irr = pic8259->irq_lines;
pic8259->irr &= ~mask;
pic8259->prio = (pic8259->prio + 1) & 7;
}