2 ; IRQ handling (Gamate version)
5 .export initirq, doneirq, IRQStub
7 .import __INTERRUPTOR_COUNT__, callirq_y
12 ; ------------------------------------------------------------------------
20 ; ------------------------------------------------------------------------
28 ; ------------------------------------------------------------------------
29 ; 256*32 interrupts in about 1minute 60s = 136hz
30 ; -> guess 16384 clock cycles = 135,28hz (might be audio signal 1/512?)
33 ; A and Y are saved by the BIOS
38 ldy #<(__INTERRUPTOR_COUNT__ * 2)