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- <TITLE>Interrupts</TITLE>
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- <H1>Interrupts</H1>
- <P><img src="ints.gif" width="73" height="130" align=right >Check boxes are provided for the three external interrupt sources, RESET, XIRQ, and IRQ.
- When the interrupt is handled, the check is cleared. Boxes can be checked while simulations are
- running via "Go". The checks will be cleared as soon as the interrupt is request is serviced, even
- while running via "Go".</P>
- <P>Then value given as <EM>pending</EM> are the number of interrupt sources that are requesting service.</P>
- <P>Note that if an interrupt request is serviced and there is no handler (interrupt vector is $0), the an error is
- assumed and the simulation stops.</P>
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