[RESOLVED] void pointer to interrupt function

[wolf99]

Hi All

I am working with Hi-Tech's HC51-Lite compiler...its a nightmare.

I am trying to assign an ISR to run on a certain interrupt vector.
The Hi-Tech manual recommends a couple techniques only one of which works in my version: using inline asm code. The asm code means I need obtain a pointer to the ISR so I can place this in the ACC and thus reference it in the asm section.
My current C code to do this is:

// ISR name= interrupt void ext1isr (void)
	void (*pisr)(void);
	pisr = &ext1isr;  // Line 23
	ACC = ((int*)pisr);  // Line 24

But the compiler gives me errors:

Error : 23 undefined identifier "ext1isr"
Warning : 23 illegal conversion between pointer types
Warning : 24 illegal conversion of pointer to integer

Frankly void pointers and pointers to functions are outside my level of knowledge so any help much appreciated.
Thanks

EDIT: just tried: interrupt voide (*pisr) (void); but no change