Interrupt context saving problem

[adaniel]

Compiler mikroC PRO for 8051 version 3.6.0
Chip C8051F350 (Silabs)

The ics command doesn't work.

Compile the sample below and look at the generated assembly: it is the same, with or without the ics command
Worse: since the code has more than 8 bytes, it overlaps the next interrupt function. Obviously I am doing something
wrong, or else it would be impossible to use interrupts. So, what is the correct way to do it?



void main()
{
while (1) {}
}

void Timer2InterruptHandler() org IVT_ADDR_ET2 ics ICS_OFF
{
TMR2CN.TF2H = 0;
}

[petar.suknjaja]

Hi,
I'll review this and let you know what I've found out.

Kind regards,
Petar

[adaniel]

Thanks Petar for your answer. Don't work too hard, I already have the answer for my second question: there is no overlapping problem since the first handler instruction is a LJMP.
I still have an ics problem: I would like to have full control of registers to be saved, if possible.