cpunum_set_input_line()

Set the logical state of the an input line on a CPU.

Declared in src/emu/cpuint.h as

void cpunum_set_input_line(running_machine *machine, int cpunum, int line, int state);

• machine – Pointer to the machine where this CPU is running
• cpunum – Index to the CPU
• line – The IRQ to set, those are generally defined in the appropriate CPU header files
• state – The logical state to set. Possible values are ASSERT_LINE, HOLD_LINE, CLEAR_LINE and PULSE_LINE

Nothing.

cpunum_set_input_line(machine, 1, M6809_FIRQ_LINE, ASSERT_LINE);

This call will change the state of the M6809_FIRQ_LINE of the second CPU to ASSERT_LINE, meaning that the CPU will now take this interrupt if interrupts are enabled.