| Interrupt handling Kategorie: Programmierung Assembler (von PepeV - 21.03.2014 21:03) | ||
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Hi all, I am trying to find out if and how assembly routines are interrupted by the bytecode interpreter. The reason is that when my Probot128 records or plays sounds, it remains in an assembly routine for many seconds. If possible it should at the same time keep track of the pulses from the wheel encoders via external interrupts. Now I found out that during an assembly routine, when interrupts are not disabled with cli, when an interrupt occurs, the byte code increases a counter associated with that particular interrupt. (It is that counter that is read and reset with Irq_GetCount.) It seems that is the only thing that happens. In any case, no user written ISR is carried out. If interrupts are disabled with cli, any interrupt that occurs is remembered by the hardware. When the assembly routine is left and interrupts are enabled again with sei, the bytecode interpreter increases the counter and jumps to the user defined ISR. Is that correct? Would it be possible to locate the address of the routine that increases the interrupt counter? Would it be possible to replace that routine with another one, e.g. by changing the interrupt vector? I would be grateful for your ideas and insights. Regards, Pepe | ||
Antwort schreiben Antworten:  Re: Interrupt handling (von Torsten - 25.03.2014 19:56)Re: Interrupt handling (von PeterS - 29.03.2014 14:06)Re: Interrupt handling (von Torsten - 31.03.2014 20:44)Re: Interrupt handling (von PeterS - 3.04.2014 11:39)Re: Interrupt handling (von Torsten - 3.04.2014 20:39)Re: Interrupt handling (von PeterS - 13.04.2014 10:44)Re: Interrupt handling (von PepeV - 8.04.2014 17:31)Re: Interrupt handling (von Torsten - 8.04.2014 20:37)Re: Interrupt handling (von PepeV - 9.04.2014 20:14)Re: Interrupt handling (von Torsten - 14.04.2014 20:10) | ||
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